arctic_sun_5000_service_manual_rev_3_june_2013.pdf
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SERVICE manual
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AS5000 SERVICE MANUAL
TABLE OF CONTENTS
Chapter 2 – Components................................................................................. 5
Hydraulic Components..................................................................................... 5
Electronic Components.................................................................................... 5
Chapter 3 - Theory of Operation..................................................................... 6
Main Hydraulic Circuits................................................................................... 6
Ancillary Hydraulic Circuits............................................................................ 6
Electronic Control System............................................................................... 6
Chapter 4 - Maintenance................................................................................ 7
Maintenance Schedule................................................................................... 7
Inspect Connectors and Cables..................................................................... 7
Clean the Condenser........................................................................................ 7
Drain the Reservoir........................................................................................... 7
Refill.................................................................................................................... 7
Inspect Screen Protector................................................................................ 7
Calibration.......................................................................................................... 7
Chapter 5 - Advanced Setup........................................................................... 7
Chapter 6 - Alarms and Alerts........................................................................ 8
Alarms................................................................................................................. 8
Main Safety Alarms.......................................................................................... 8
Non-Recoverable Alarms................................................................................ 8
Recoverable Alarms......................................................................................... 8
Alerts................................................................................................................... 8
Alarm and Alert Listing.................................................................................... 9
Chapter 7 – Troubleshooting......................................................................... 14
7.1 Diagnostic Screen.................................................................................... 14
7.2 Event Log.................................................................................................... 14
7.3 General Troubleshooting Guide.............................................................. 14
7.3.1 Device Not Controlling Patient Temperature.................................... 14
7.3.2 Patient Does Not Cool........................................................................... 14
7.3.1 Patient Does Not Warm........................................................................ 14
7.3.3 Device Will Not Fill................................................................................ 15
7.3.4 Control Panel Will Not Power On........................................................ 15
7.3.5 Low Flow Alarm ..................................................................................... 15
7.4 Troubleshooting Assistance.................................................................... 15
Released
Chapter 1 – Getting Started............................................................................ 1
Introduction....................................................................................................... 1
Customer Support............................................................................................. 1
Warnings & Cautions....................................................................................... 1
System Setup..................................................................................................... 2
System Navigation............................................................................................ 3
Therapy Screens............................................................................................... 3
Chapter 8 – Component Replacement........................................................ 15
8.1 Tools Required........................................................................................... 21
8.2 Drain the control module ........................................................................ 21
8.3 Remove Back Panel................................................................................. 22
8.4 Remove Outer shell.................................................................................. 22
8.5 Removing / Replacing Circuit Cards from card cage ........................ 23
8.6 Removing internal components from Chiller Frame............................ 25
8.8 Separating the Internal Components into Two Sections................... 26
8.8 Replacing Mixing Pump........................................................................... 28
8.9 Replacing Circulation Pump.................................................................... 28
8.10 Replacing Chiller Pump.......................................................................... 29
8.11 Replacing Heater.................................................................................... 30
8.12 Replacing Flowmeter............................................................................. 31
8.13 Replacing Control Panel........................................................................ 32
8.14 Replacing Chiller ................................................................................... 32
8.15 Replacing Tank Temperature Sensor Harness.................................. 33
8.16 Replacing Manifold Harness................................................................ 33
8.18 Replacing Inlet/Outlet Manifold .......................................................... 34
8.18 Replacing Level Sensor......................................................................... 35
8.19 Replacing Power Module ..................................................................... 35
8.20 Replacing Mains Voltage Circuit Card............................................... 36
8.21 Replacing the AC Breaker Harness..................................................... 36
Chapter 9 – Calibration / Calibration Check ............................................. 37
9.1 Calibration Test Unit................................................................................. 37
9.2 When to Perform a Calibration or Calibration Check......................... 37
9.3 Performing a Calibration ........................................................................ 37
Appendix A - Product Specifications......................................................... 38
Appendix B - Specifications........................................................................ 39
Appendix C - Symbols................................................................................... 40
Appendix D - Electomagnetic Compatibility............................................. 41
Appendix E - Spare Parts and Accessories.............................................. 43
Appendix F - Temperature Cables............................................................... 44
Appendix G - Shipping.................................................................................. 45
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Chapter 1 – Getting Started
•
Do not place ArcticGel™ Pads over transdermal medication patches as
warming can increase drug delivery, resulting in possible harm to the patient.
Cautions
• This product is to be used by or under the supervision of trained, qualified
The Arctic Sun Temperature Management System is a device that
medical personnel.
monitors and controls patient temperature within a range of 32°C to 38.5°C
• Federal law (USA) restricts this device to sale, by or on the order of a
(89.6°F to 101.3°F). The system consists of the Model 5000 and disposable
physician.
ArcticGel™ Pads. The Arctic Sun® Temperature Management System
• Use only distilled or sterile water. The use of other fluids will damage the
delivers temperature-controlled water ranging between 4°C and 42°C
Arctic Sun® Temperature Management System system.
(39.2°F and 107.6°F) through the pads adhered to the patient’s skin. This
• When moving the Arctic Sun® Temperature Management System always
results in highly efficient conductive heat transfer between the water and
use the handle to lift the controller over an obstacle to avoid over balancing.
the patient.
• The patient’s bed surface should be located between 30 and 60 inches (75
cm and 150 cm) above the floor to ensure proper flow and minimize risk of
The Arctic Sun® 5000 Temperature Management System was designed
leaks.
with ease of service in mind and incorporates several features that will
• The clinician is responsible to determine the appropriateness of custom
assist clinical engineers in maintaining its performance. These features
parameters. When the system is powered off, all changes to parameters
include: negative pressure flow that eliminates water leaks, real-time air
will revert to the default unless the new settings have been saved as new
leak detection, and performance monitoring. It also includes access to
defaults in the Advanced Setup screen. For small patients (≤30 kg) it is
alarm logs and past system case data, real-time diagnostic information,
recommended to use the following settings: Water Temperature High Limit
simplified calibration and maintenance, and modular construction allowing
≤40°C (104°F); Water Temperature Low Limit ≥10°C (64.4 °F); Control Strategy
for simple repair if required.
=2.
• The operator must continuously monitor patient temperature when using
Manual Control and adjust the temperature of the water flowing through the
Customer Support
pads accordingly. Patient temperature will not be controlled by the Arctic
Sun® Temperature Management System in Manual Control.
USA Headquarters
• Due to the system’s high efficiency, Manual Control is not recommended
Medivance, Inc.
for long duration use. The operator is advised to use the automatic therapy
321 South Taylor Avenue, Suite 200
modes (e.g. Control Patient, Cool Patient, Rewarm Patient) for automatic
Louisville, Colorado 80027 USA
patient temperature monitoring and control.
Phone: 303 926 1917
•
The Arctic Sun® Temperature Management System will monitor and control
Toll Free: 877 267 2314
patient core temperature based on the temperature probe attached to the
Fax: 720 880 5400
system. The clinician is responsible for correctly placing the temperature
customerservice@medivance.com
probe and verifying the accuracy and placement of the patient probe at the
start of the procedure.
EC REP
• Medivance recommends measuring patient temperature from a second site
Bard Limited
to verify patient temperature. Medivance recommends the use of a second
Forest House
patient temperature probe connected to the Arctic Sun® Temperature
Brighton Road
Management System Temperature 2 input as it provides continuous
Crawley, West Sussex UK
monitoring and safety alarm features. Alternatively, patient temperature
RH 11 9BP
may be verified periodically with independent instrumentation.
• The displayed temperature graph is for general information purposes only
For assistance outside the US and Germany, contact your Arctic Sun® 5000
and is not intended to replace standard medical record documentation for
Temperature Management System Distributor.
use in therapy decisions.
• Patient temperature will not be controlled and alarms are not enabled in
Stop Mode. Patient temperature may increase or decrease with the Arctic
Indications for Use
Sun® Temperature Management System in Stop Mode.
The Arctic Sun® Temperature Management System is intended for
• Carefully observe the system for air leaks before and during use. If the pads
monitoring and controlling patient temperature.
fail to prime or a significant continuous air leak is observed in the pad return
line, check connections. If needed, replace the leaking pad. Leakage may
Warnings and Cautions
result in lower flow rates and potentially decrease the performance of the
system.
Warnings
• The Arctic Sun® Temperature Management System is for use only with the
• Do not use the Arctic Sun® Temperature Management System in the
ArcticGel™ Pads.
presence of flammable agents because an explosion and/or fire may result.
• The ArcticGel™ Pads are only for use with the Arctic Sun® Temperature
• Do not use high frequency surgical instruments or endocardial catheters
Management Systems.
while the Arctic Sun® Temperature Management System is in use.
• The ArcticGel™ Pads are non-sterile for single patient use. Do not reprocess
• There is a risk of electrical shock and hazardous moving parts. There are
or sterilize. If used in a sterile environment, pads should be placed
no user serviceable parts inside. Do not remove covers. Refer servicing to
according to the physician’s request, either prior to the sterile preparation
qualified personnel.
or sterile draping. ArcticGel™ Pads should not be placed on a sterile field.
• Power cord has a hospital grade plug. Grounding reliability can only be
• Use pads immediately after opening. Do not store pads once the kit has
achieved when connected to an equivalent receptacle marked “hospital
been opened.
use” or “hospital grade”.
• Do not place ArcticGel™ Pads on skin that has signs of ulceration, burns,
• When using the Arctic Sun® Temperature Management System, note that all
hives, or rash.
other thermal conductive systems, such as water blankets and water gels, in
• While there are no known allergies to hydrogel materials, caution should
use while warming or cooling with the Arctic Sun® Temperature Management
be exercised with any patient who has a history of skin allergies or
System may actually alter or interfere with patient temperature control.
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by: .
sensitivities.
Introduction
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®
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AS5000 SERVICE MANUAL
•
•
•
•
•
•
•
•
•
•
•
•
2
Do not allow circulating water to contaminate the sterile field when
patient lines are disconnected.
The water content of the hydrogel affects the pad’s adhesion to the skin
and conductivity, and therefore, the efficiency of controlling patient
temperature. Periodically check that pads remain moist and adherent.
Replace pads when the hydrogel no longer uniformly adheres to the skin.
Replacing pads at least every 5 days is recommended.
Do not puncture the ArcticGel™ Pads with sharp objects. Punctures will
result in air entering the fluid pathway and may reduce performance.
If accessible, examine the patient’s skin under the ArcticGel™ Pads often,
especially those at higher risk of skin injury. Skin injury may occur as a
cumulative result of pressure, time and temperature. Do not place bean
bag or other firm positioning devices under the ArcticGel™ Pads. Do not
place positioning devices under the pad manifolds or patient lines.
The rate of temperature change and potentially the final achievable
patient temperature is affected by many factors. Treatment application,
monitoring and results are the responsibility of the attending physician.
If the patient does not reach target temperature in a reasonable time or
the patient is not able to be maintained at the target temperature, the
skin may be exposed to low or high water temperatures for an extended
period of time which may increase the risk for skin injury. Ensure that
pad sizing / coverage and custom parameter settings are correct for the
patient and treatment goals, environmental factors such as excessively
hot rooms, heat lamps, and heated nebulizers are eliminated, water flow
is greater than or equal to 2.3 liters per minute, a patient temperature
probe is in the correct place, and patient shivering is controlled.
Otherwise, consider increasing minimum water temperature, modifying
target temperature to an attainable setting, or discontinuing treatment.
Due to underlying medical or physiological conditions, some patients
are more susceptible to skin damage from pressure and heat or cold.
Patients at risk include those with poor tissue perfusion or poor skin
integrity due to diabetes, peripheral vascular disease, poor nutritional
status, steroid use or high dose vasopressor therapy. If warranted, use
pressure relieving or pressure reducing devices under the patient to
protect from skin injury.
Do not allow urine, antibacterial solutions or other agents to pool
underneath the ArcticGel™ Pads. Urine and antibacterial agents can
absorb into the pad hydrogel and cause chemical injury and loss of pad
adhesion. Replace pads immediately if these fluids come into contact
with the hydrogel.
Do not place ArcticGel™ Pads over an electrosurgical grounding pad. The
combination of heat sources may result in skin burns.
If needed, place defibrillation pads between the ArcticGel™ pads and the
patient’s skin.
Carefully remove ArcticGel™ Pads from the patient’s skin at the
completion of use. Discard used ArcticGel™ Pads in accordance with
hospital procedures for medical waste.
The USB data port is to be used only with a standalone USB flash
drive. Do not connect to another mains powered device during patient
treatment.
Users should not use cleaning or decontamination methods different
from those recommended by the manufacturer without first checking
with the manufacturer that the proposed methods will not damage the
equipment. Do not use bleach (sodium hypochlorite) as it may damage
the system.
Medivance will not be responsible for patient safety or equipment
performance if the procedures to operate, maintain, modify or service the
Medivance Arctic Sun® Temperature Management System are other than
those specified by Medivance. Anyone performing the procedures must
be appropriately trained and qualified.
System Setup
Unpack
1) Unpack the Arctic Sun® Temperature Management System Control
Module and accessories.
2) Allow the control module to remain upright for at least 2 hours prior
to completing the installation and setup procedure in order to allow
the chiller oil to settle. Damage to the chiller compressor may result
otherwise.
3) Connect the Fluid Delivery Line, Patient Temp 1 cable, Patient Temp 2
cable (optional) and Fill Tube to the back of the control module.
4) Plug the Power Cord into a hospital-grade wall outlet and power
On. Position Arctic Sun® Temperature Management System so that
access to the power cord is not restricted. The control module will
automatically go through a brief self-test of the independent safety
alarms.
Patient
Temp 1
Strain Relief
Patient
Temp 2
Patient
Temp Cable
Fill Tube
Parking
Fill Tube/Port
Released
•
Power Switch
Patient
Temp
Out
Fluid
Delivery
Line
Power Cord
Drain Ports
Equipotential
Stud
Air Filter
Fig. 1-1 Arctic Sun® Temperature Management System Control Module
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System Navigation
Therapy Screens
C
G
D
P
F
E
L
H
J
M
N
I
K
A
O
Q
R

A training module including a section for Clinical Engineering (Setup and
Maintenance) is available from the start-up screen.
C
G
D
P
F
H
J
E
I
L
M
N
K
O
A
B
R
Fig. 1-5 Hypothermia Therapy screen
Fig. 1-3 Therapy Selection screen
When the self-test is complete, the Patient Therapy Selection screen will
appear on the control panel.
Q
Released
Fig. 1-4 Normothermia Therapy screen
Fig. 1-2 Start-up screen with training module
The following information is displayed and functions are available from the
Normothermia and Hypothermia therapy screens.
A Cool Patient window (Hypothermia screen)
Control Patient window (Normothermia screen)
B Rewarm Patient window (Hypothermia screen)
C Patient Monitoring area
D Patient Temperature
E Patient Temperature 2 (if enabled)
F Patient Temperature Trend Indicator
G System Monitoring area
H Water Temperature
I Water Flow Rate
J Reservoir Water Level
K Therapy Graph
L Manual Control button (if enabled)
M Empty Pads button
N Fill Reservoir button
O Therapy Selection / Screen Lock button
P Temperature Units button (if enabled)
Q Stop button
R Help button
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AS5000 SERVICE MANUAL
Fig 1-8 Control Patient - Adjust panel
(appears after user presses Adjust on Control Patient panel)
Fig. 1-6 Fill Reservoir screen
Manual Control
Manual Control allows the user to directly set the water temperature in
the Circulating Tank. It does not require a patient temperature probe to be
connected and therefore can be used for troubleshooting and diagnostic
purposes.
Fig 1-9 Normothermia Settings screen
If Manual Control has been disabled it will need to be enabled. To enable
Manual Control, from the Normothermia Therapy screen press the Adjust
button located at the bottom center of the screen. From the Control PatientAdjust screen, press the More button. This will display the Normothermia
Settings screen (Fig. 1-9). Press the adjust button for manual control. Select
the desired water temperature and time. Press Save. Enabling Manual
Control will not automatically change the default settings.
When enabled, the Manual Control button is visible in the upper right hand
corner of the Therapy screen. Pressing the Manual Control button allows the
user to change the water target and duration, and to start Manual Control.
Fig 1-7 Control Patient panel from Normothermia screen
4
Released
Fill Reservoir
• Four liters of sterile or distilled water are required to fill the reservoir at
initial installation.
• Prior to filling, add one vial of Arctic Sun® Temperature Management
System Cleaning Solution to the water.
• From the Patient Therapy Selection screen, press either the
Normothermia or Hypothermia button, under the New Patient heading.
• From the Normothermia or Hypothermia therapy screen, press the Fill
Reservoir button.
• The Fill Reservoir screen will appear. Follow the directions on the
screen.
Fig. 1-10 Manual Control panel (appears after user presses Manual Control
on main Normothermia or Hypothermia Screen)
Functional Verification
Certificates of Conformance for calibration, performance, and electrical
safety tests are included with the shipment of each Arctic Sun® 5000
Temperature Management System. To verify the system will heat and cool
properly, perform the following:
1) Power On the system.
2) From the Patient Therapy Selection screen, press the Hypothermia
button to display the Hypothermia therapy screen.
3) From the Hypothermia therapy screen, press the Manual Control
button to open the Manual Control window.
4) Set the Manual Control water target temperature to 40°C and the
duration to 30 minutes.
5) Press the Start button to initiate Manual Control. Allow at least three
minutes for the system to stabilize. Monitor the flow rate and verify at
least 1.5 liters/minute.
6) Monitor the water temperature in the System status area on the
Hypothermia therapy screen. Verify that the water temperature
increases to at least 30°C.
7) Without pressing Stop, set the Manual Control water target
temperature to 4°C and the duration to 30 minutes. Verify that the water
temperature drops to at least 6°C.
8) Press the Stop button to stop Manual Control . Press the Cancel button
to close the Manual Control window. Power Off the control module.
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Hydraulic Components
Fluid Delivery Line – reusable dual lumen tubing that connects the Control
Module to the ArcticGel™ Pads.
Pumps
Circulation Pump – pumps water from the Circulation Tank through the
ArcticGel™ Pads.
Mixing Pump – Transfers cold water from the Chiller Tank to the
Circulation Tank.
Chiller Pump – continuously circulates the water from the Chiller Tank
through the chiller’s evaporator.
Tanks
Circulation Tank – contains temperature-controlled water that supplies
the ActicGel Pads.
Chiller Tank – contains water that is maintained at approximately 4°C.
Supply Tank – contains water that is used to replenish the Circulation
Tank when the ArcticGel™ Pads are filled.
Sensors
Outlet Monitor Temperature - T1 – located within the Circulation Tank.
Used to monitor the temperature of water that supplies the ArcticGel™
Pads.
Outlet Control Temperature - T2 – located within the Circulation Tank.
Used to control the temperature of water that supplies the ArcticGel™
Pads.
Inlet Temperature – T3 – located within the Inlet/Outlet Manifold.
Monitors the temperature of water returning from the ArcticGel™ Pads.
Chiller Temperature – T4 – located within the Chiller Tank. Used to
control temperature of water in the Chiller Tank.
Pressure Sensor – located within the Inlet/Outlet Manifold. Used to
maintain a constant negative pressure within the ArcticGel™ Pads by
controlling the speed of the Circulation Pump.
Flow Sensor – located at the outlet of the Circulation Pump. Monitors
the flow rate in the Circulation Circuit.
Valves
Conditioning Valve – located within the Inlet/Outlet Manifold.
When open, allows water to circulate internally when priming or
preconditioning.
Fill Valve – located within the Inlet/Outlet Manifold. When open, allows
the Circulation Pump to draw water into the system.
Vent Valve – located within the Inlet/Outlet Manifold. When open,
allows air to supply ArcticGel™ Pads and the displaced water to be
returned to the Supply Tank.
Heater – located in the Circulation Tank. The heater consists of 4
heating rods. The heating element within each rod is in series with a
non-resettable thermal fuse, which protects each rod against an overtemperature condition.
ATMOSPHERE
VENT
CHILLER
TANK
T4
CIRCULATION TANK
T1 HEATER T2
SUPPLY TANK
INLET/OUTLET
MANIFOLD
VV
BV
BYPASS LINE
FV
FILL LINE
T3
P1
FLOW METER
CHILLER
PUMP
MIXING
PUMP
Released
Chapter 2 Components
FLUID
DELIVERY
DELIVEY
LINE
CIRCULATION
PUMP
CHILLER
CIRCUIT
CIRCULATING CIRCUIT
VALVE
VALVE
DRAIN PORTS
KEY
EVAPORATOR
AIR FLOW
CHILLER
ARCTICGEL
PAD
AIR FLOW
VV
BV
FV
P1
T1
T2
T3
T4
Vent Valve
Bypass Valve
Fill Valve
Pressure Sensor
Outlet Monitor Temperature
Outlet Control Temperature
Inlet Temperature
Chiller Temperature
Fig. 2-1 The Hydraulic Schematic
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AS5000 SERVICE MANUAL
Electronic Components
Cables – power cord and temperature cables. Additional adapter
cables are available to purchase for use with different manufacturers’
temperature probes. In addition, temperature out cables can be
purchased to allow output of patient temperature to an external monitor.
Please refer to the Temperature Cables in Appendix C.
The Mains Voltage Circuit Card – located below the Supply Tank.
Includes electromechanical relays to control mains power to the chiller
and heater. Also includes solid state relays to control power to each of
the four heating elements.
Power Module – located next to the Mains Voltage Circuit Card.
Converts AC mains voltage to 24 VDC.
Power Circuit Card – located within the Card Cage. Converts 24 VDC to
lower DC voltages used by the system.
The Processor Circuit Card – located within the Card Cage. Includes
both the control and monitor microprocessors and associated circuitry,
including nonvolatile memory.
The Isolation Circuit Card – located within the Card Cage. Provides
electrical isolation for the Patient Temperature circuits to a level
of 1500V. Also provides a simulated YSI 400 compatible patient
temperature signal (Temperature Out) to an external monitor.
The Input/Output Circuit Card – located within the Card Cage. Contains
circuits that monitor water temperature, pressure and flow. Provides
control for Circulation and Mixing Pumps, valves, and Chiller.
The Backplane Circuit Card – located at the back of the Card Cage.
Interconnects the circuit cards within the card cage.
Control Panel – located at the top of the Control Module. Consists of
touch screen, microprocessor, hard drive, USB interface, and USBpowered speaker.
Chapter 3 Theory of Operation
Main Hydraulic Circuits
Circulation Circuit - circulates temperature-controlled water from the
Circulation Tank through the ArcticGel™ Pads and returns to the inlet port of
the Circulation Pump. The speed of the Circulation Pump varies to maintain
-7.0 PSI (0.5 bar) at the Pressure Sensor. Since water in the ArcticGel™
Pads flows under negative pressure, a break in the circuit, such as a pad
being punctured or disconnected, will result in air leaking into the system
instead of water leaking out. Air in the system is removed in the Circulation
Tank and exits through the tank vent. When warmer water is required, the
heaters located in the Circulation Tank are energized. The heater power is
dependent upon the flow rate through the circulation tank and the difference
between the water temperature and the commanded water temperature.
The heater has four elements that are cycled on sequentially to minimize
power fluctuations in the mains supply.
Chiller Circuit – maintains the water in the Chiller Tank at approximately
4⁰C. Water is gravity-fed into the centrifugal Chiller Pump and is then
pumped through the chiller’s evaporator and returned to the Chiller Tank.
The refrigerant system’s cooling capacity is controlled by a refrigerant valve.
When the Chiller Circuit approaches 4⁰C, the cycling of the valve can be
heard.
Mixing Circuit – when cold water is required to cool the Circulation Circuit,
the Mixing Pump pulls water from the Circulation Tank and meters it into the
Chiller Tank. Cold water overflows from the Chiller Tank into the Circulation
Tank. The speed of the mixing pump is dependent upon the flow rate through
the circulation tank and the difference between the water temperature and
the commanded water temperature.
6
Ancillary Hydraulic Circuits
Filling - When filling, the Fill Valve is opened and water is drawn up
through the valve by the Circulation Pump. Water returns through
the Circulation Tank to the Supply Tank. Negative Pressure must be
generated at the inlet of the Inlet/Outlet Manifold for filling to occur,
therefore the Fluid Delivery Line must be attached. ArcticGel™ Pads
should not be attached to the Fluid Delivery Line during filling.
Preconditioning – The system can be programmed to precondition
water prior to initiating therapy. In this mode, the Bypass Valve opens
and allows temperature-controlled water to circulate internally to
bring the Circulation Tank and Supply Tank water to a pre-programmed
temperature.
Empty Pads – To empty water from the ArcticGel™ Pads, the Vent Valve
is opened, which enables air to enter the pads. Water is pulled from the
pads by the Circulation Pump and returned through the Circulation Tank
to the Supply Tank.
Electronic Control System
The electronic system consists of two independent subsystems: control and
monitor. The control subsystem is responsible for delivering therapy to the
patient. The monitor subsystem confirms the safe operation of the control
subsystem. Each subsystem has an independent microprocessor, audio
alarm, and both water and patient temperature sensing circuits.
The control subsystem performs the following functions:
• Command interpretation from the Control Panel
• System information update to the Control Panel
• Circulation Tank water temperature control (T2 & T3)
• Circulation Pump speed control from pressure sensor (P1)
• Patient temperature measurement (PT1)
• Temperature Out signal generation
• Chiller Tank water temperature control (T3)
• Valve control (VV, BV and FV)
• Chiller control
The monitor subsystem performs the following functions:
• Redundant command interpretation from Control Panel
• Circulation Tank temperature monitoring (T1)
• Patient temperature measurement (PT2)
• Circulation Pump power interrupt control
• Power Circuit Card voltage monitoring
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Released
Inlet/Outlet Manifold – connects to Fluid Delivery Line and Fill Tube.
Contains the valves, the inlet temperature sensor, and the pressure
sensor.
Chiller – a refrigeration unit that continuously cools the evaporator.
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Chapter 4 – Maintenance
Inspect Screen Protector
The Control Panel’s touchscreen is supplied with a disposable screen protector.
If it becomes damaged, it can be removed by lifting the edge and carefully
peeling it from the screen. To ensure dust and particulates are removed, clean
the touchscreen using isopropyl alcohol. Remove the blue liner from the screen
protector. Then carefully apply the protector to the screen with the liner side
down against the screen.
Maintenance Schedule
Procedure
Interval
Clean external surfaces
As required
Inspect connectors and cables
6 months
Clean the condenser
6 months
Replenish Cleaning Solution
6 months
Inspect Screen Protector
6 months
Calibration
Every 2000 hours or 250 uses,
whichever occurs first, as
indicated by system display
Calibration
To perform a calibration on the Arctic Sun® 5000 Temperature Management
System, press the Advanced Setup button on the Therapy Selection
Screen. Press the Start button and follow the on-screen directions.
Clean the External Surfaces
Cleaning should include the exterior of the Control Module, Fluid Delivery
Lines, Temperature Cables and the power cord. Clean visible contamination
from the surfaces with a dampened cloth using a mild detergent. Rinse and
dry thoroughly. Use a soft cloth dampened with disinfectant according to
hospital protocol. Medivance has qualified and approves the use of the
following types of disinfectants for exterior surfaces: sodium hypochlorite,
isopropyl alcohol, and quaternary ammonium.
Inspect Connectors and Cables
Inspect the patient temperature cable(s) and power cord for integrity.
Ensure temperature cables are properly strain relieved. Ensure power cord
bracket is secure.
Clean the Condenser
Use the Advanced Setup screen to view the current settings and modify
the settings for the following parameters. To modify any parameter setting,
press the Adjust button to the right of the parameter.
Location / Time Settings
• Language
• Date Format
• Number Format
• Current Time
• Current Date
Released
Required accessories and supplies can be ordered separately.
Refer to Appendix B for the Spare Parts and Service Items.
Chapter 5 – Advanced Setup
The following functions can be initiated from the Advanced Setup screen.
• Download Patient Data: The Patient Data for the last 10 (ten) cases are
stored on the Arctic Sun® Temperature Management System hard drive.
This data is maintained when the Arctic Sun® Temperature Management
System is powered down, or in the event of a total loss of power.:
• Calibration
• Total Drain
• Save All Settings As Default
A dirty chiller condenser will significantly reduce the cooling capacity of
the control module. To clean the condenser, wipe the dust from the exterior
grill using a soft cloth. Depending on the quality of your institution’s air,
periodically remove the back cover and vacuum or brush the condenser
fins. At a minimum the condenser fins should be cleaned annually.
Maintenance activities should be performed by qualified personnel.
Additionally, the following information can be viewed in the Advanced
Setup screen.
• Software Versions
• Last Calibration date
• Next calibration due
Replenish Cleaning Solution
To access the Advanced Setup screen:
1) Press Advanced Setup button on the Patient Therapy Selection screen.
2) The Advanced Setup screen will be displayed.
Replenish Internal Cleaning Solution
Contact Medivance Customer Service to order internal cleaning solution.
To replenish the internal cleaning solution:
1) Drain the reservoir.
• Turn control module power Off.
• Attach the drain line to the two drain ports on the back of the
control module. Place the end of the drain line into a container. The
water will passively drain into the container.
2) Refill the reservoir.
• From the Hypothermia therapy screen or the Normothermia therapy
screen, press the Fill Reservoir button.
• The Fill Reservoir screen will appear. Follow the directions on the
screen.
• Add one vial of Arctic Sun® Temperature Management System
cleaning solution to the first bottle of distilled or sterile water.
• The filling process will automatically stop when the reservoir is full.
Continue to replace the bottles of sterile or distilled water until the
filling process stops.
• When the Fill Reservoir process is complete, the screen will close.
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Chapter 6 – Alarms and Alerts
Non-Recoverable Alarms
The Arctic Sun® Temperature Management System safety system
continually monitors the state of the device and the patient, and issues
alarms or alerts to notify the user of conditions that may interfere with
patient safety or system performance.
If an Alarm condition occurs that prevents proper use of the device or
proper patient treatment (such as the five main safety alarms discussed
above), the system is placed into Stop mode and will not allow therapy to
continue. This type of Alarm is known as Non-Recoverable. If this situation
occurs, cycle the device power (turn device Off then On). If the alarm
recurs contact Medivance Customer Support.
There are two types of conditions: Alarms and Alerts.
An Alert informs the user about patient and device status without
interrupting the procedure. An Alert is a Medium Priority condition that
requires prompt operator response.
A list of Alarms and Alerts that the user might encounter appears at the
end of this chapter.
Alarms
An Alarm is denoted by an audio signal that repeats every 10 seconds until
the Alarm is cleared.
The Alarm screen will appear displaying the alarm number, alarm title,
a description of the problem or conditions that triggered the alarm, and
solutions and instructions for troubleshooting and resolving the alarm
condition.
Recoverable Alarms
Other Alarms that temporarily Stop the device until the user is able to
correct the cause and clear the Alarm are classified as Recoverable. If the
condition that initiated the alarm is not addressed and problem persists,
the Alarm will recur.
If a Recoverable Alarm occurs:
1) When an alarm is issued the device is placed into Stop mode.
2) Read the displayed instructions.
3) Note the Alarm number.
4) Press the Close button to clear the alarm.
5) Follow the instructions to correct the alarm condition. Perform the
actions in the order listed until the alarm condition is resolved.
6) Once you have cleared the alarm, press the Start button in the therapy
window to restart therapy. You will hear a tone and a voice stating,
“Therapy Started.” Additionally, the active therapy window and the
Arctic Sun® Temperature Management System icon will blink.
7) If the condition does not resolve, contact Medivance Customer Support.
Released
An Alarm notifies the user of a condition that may potentially pose an
unsafe situation with respect to the patient or the device; an Alarm
interrupts the procedure. An Alarm is a High Priority condition that
requires immediate operator response.
Alerts
Alerts are denoted by an audio signal that repeats every 25 seconds.
The Alert screen will appear, displaying the alert number, alert title, a
description of the problem that triggered the alert, and solutions and
instructions for troubleshooting and resolving the alert condition.
Fig. 6-1 Alarm screen
Main Safety Alarms
While there are multiple alarms and safety features in the Arctic Sun®
Temperature Management System, there are five main safety alarms that
will place the device into Stop mode until the condition is addressed.
Alarm Specification
High Patient Temperature
39.5 °C (103.1 °F)
Low Patient Temperature
31.0 °C (87.8 °F)
High Water Temperature
42.5 °C / 44 °C (108.5 °F / 111.2 °F)
Low Water Temperature
3.0 °C / 3.5 °C (37.4 °F / 38.3 °F)
System Self-Test Failure
At device power ON
Fig. 6-2 Alert screen
If an Alert occurs:
1) Read the displayed instructions.
2) Note the Alert number.
3) Press the Close button to clear the alert.
4) Follow the instructions to correct the alert condition. Perform the
actions in the order listed until the alarm condition is resolved. If the
condition does not resolve, contact Medivance Customer Support.
Each time the Arctic Sun® Temperature Management System is powered
On, a system self-test for the independent safety alarm is automatically
run. This test simulates a “water high temperature” fault situation on both
the primary and secondary water temperature sensors. Both the primary
and secondary safety systems must respond to the fault and be verified
by the opposing safety system. If either safety system fails to respond
appropriately, either an alarm 80 or 81 will be issued. Contact Medivance
Customer Support.
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Alarms and Alert Listing
The following table consists of a listing of the alarms and alerts that a user might observe during
use of the Arctic Sun® Temperature Management System 5000. Text highlighted in yellow denotes an
alert, while red denotes an alarm.
Alarm/Alert
01
Alarm
Alert
Message Displayed
Problem
Patient Line Open
The system is detecting that the fluid delivery line or patient line is open to air
or has significant air in the line.
02
Low Flow
The flow rate is less than 50% of the maximum flow rate measured since the
last power On or Empty Pads, or the flow rate is less than 300 ml/minute.
03
Water Reservoir Low
At power On or the end of the Empty Pads cycle or the Fill Reservoir cycle,
the system fluid level sensors are detecting that the water reservoir is low.
There is only enough water in the reservoir to run one patient therapy.
04
Water Reservoir Below Minimum
At the end of the Empty Pads cycle, the system fluid level sensors are detecting that the water reservoir is empty or below the minimum level required to
operate the system.
05
Water Reservoir Empty
At power On or the end of the Empty Pads cycle, the system fluid level sensors are detecting that the water reservoir is empty or below the minimum
level required to operate the system.
07
Empty Pads Not Complete
A significant amount of water was still being returned from pads at the end of
the Empty Pads cycle.
08
Patient Temperature 1 high
The Patient Temperature 1 reading is above 39.5°C (103.1°F), and the water
temperature is above 39.5°C (103.1°F), and the system is continuing to warm
the patient when the system is in a patient control mode (e.g. Control Patient,
Cool Patient or Rewarm Patient).
09
Patient Temperature 1 Above High
Patient Alert
In Normothermia Therapy: The Patient Temperature 1 reading is above the
High Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 1 reading is above the
High Patient Alert setting in Hypothermia Settings.
10
Patient Temperature 1 Low
The Patient Temperature 1 reading is below 31°C (87.8°F), and the water
temperature is below 31°C (87.8°F), and the system is continuing to cool the
patient when the system is in a patient control mode (e.g. Control Patient,
Cool Patient or Rewarm Patient).
11
Patient Temperature 1 Below Low
Patient Alert
In Normothermia Therapy: The Patient Temperature 1 reading is below the
Low Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 1 reading is below the Low
Patient Alert setting in Hypothermia Settings.
12
Patient Temperature 1 High
Released
The fluid pump is working at the expected speed but the flow rate is less than
1 liter per minute and the fluid pressure is less than -6 psi.
The Patient Temperature 1 reading is above 39.5°C (103.1°F), and the water
temperature is above 39.5°C (103.1°F) while in Manual Control mode.
Patient temperature is not automatically controlled while in Manual Control
Mode.
13
Patient Temperature 1 Low
The Patient Temperature 1 reading is below 31°C (87.8°F), and the water temperature is below 31°C (87.8°F) when the system is in Manual Control mode.
Patient temperature is not automatically controlled while in Manual Control
mode.
14
Patient Temperature 1 Probe Out of
Range
Patient Temperature 1 probe is not detected, or the temperature reading is
below of the lower limits of the display range (10 °C /50 °F) while in a patient
control mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
15
Unable to Obtain a Stable Patient
Temperature
Patient temperature discontinuity. A significant change in the patient temperature reading for more than 10 minutes while in a patient control mode
(e.g. Control Patient, Cool Patient or Rewarm Patient).
16
Patient Temperature 1 Probe Out of
Range
Patient Temperature 1 probe is not detected, or the temperature reading is
above the upper limit of the display range (44 °C/111.2 °F) while in a patient
control mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
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Patient Temperature 1 Calibration Error
The system is unable to internally check the calibration of the Patient Temperature 1 channel within ± 1.0 °C while in a patient control mode (e.g. Control
Patient, Cool Patient or Rewarm Patient).
18
Patient Temperature 1 Calibration Error
The system is unable to internally check the calibration of the Patient Temperature 1 channel within ± 1.0 °C when the system is in Manual Control mode.
19
Patient Temperature 1 Calibration Error
The system is unable to internally check the calibration of the Patient Temperature 1 channel within ± 1.0 °C while in a patient control mode (e.g. Control
Patient, Cool Patient or Rewarm Patient).
20
Patient Temperature 1 Calibration Error
The system is unable to internally check the calibration of the Patient Temperature 1 channel within ± 1.0 °C when the system is in Manual Control mode.
21
Patient Temperature 2 High
The Patient Temperature 2 reading is above 39.5°C (103.1°F), and the water
temperature is above 39.5°C (103.1°F), and the system is continuing to warm
the patient while in a patient control mode (e.g. Control Patient, Cool Patient
or Rewarm Patient).
22
Patient Temperature 2 Above High
Patient Alert
In Normothermia Therapy: The Patient Temperature 2 reading reading is
above the High Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 2 reading is above the
High Patient Alert setting in Hypothermia Settings.
23
Patient Temperature 2 Low
The Patient Temperature 2 reading is below 31°C (87.8°F), and the water
temperature is below 31°C (87.8°F), and the system is continuing to cool the
patient when the system is in a patient control mode (e.g. Control Patient,
Cool Patient or Rewarm Patient).
24
Patient Temperature 2 Below Low
Patient Alert
In Normothermia Therapy: The Patient Temperature 2 reading is below the
Low Patient Alert setting in Normothermia Settings.
In Hypothermia Therapy: The Patient Temperature 2 reading is below the Low
Patient Alert setting in Hypothermia Settings.
25
Patient Temperature 2 High
The Patient Temperature 2 reading is above 39.5°C (103.1°F), and the water
temperature is above 39.5°C (103.1°F) while in Manual Control mode.
Patient temperature is not automatically controlled while in Manual Control
mode.
26
Patient Temperature 2 Low
The Patient Temperature 2 reading is below 31°C (87.8°F), and the water temperature is below 31°C (87.8°F) when the system is in Manual Control Mode.
Patient temperature is not automatically controlled while in Manual Control
Mode.
27
Patient Temperature 2 Probe Out of
Range
Patient Temperature 2 probe is not detected, or the temperature reading is
below the lower display range (10 °C /50 °F).
28
Patient Temperature 2 Probe Out of
Range
Patient Temperature 1 probe is not detected, or the temperature reading is
above the upper limit of the display range (44 °C/111.2 °F) while in a patient
control mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
29
Patient Temperature 2 Calibration Error
The system is unable to internally check the calibration of the Patient Temperature 2 channel within ± 1.0 °C when the system is in a patient control
mode (e.g. Control Patient, Cool Patient or Rewarm Patient).
Patient Temperature 2 channel is made inactive.
30
Patient Temperature 2 Calibration Error
The system is unable to calibrate the Patient Temperature 2 channel within ±
1.0 °C when the system is in Manual Control mode.
Patient Temperature 2 channel is made inactive.
31
Patient Temperature 2 Calibration Error
The system is unable to calibrate the Patient Temperature 2 channel within ±
1.0 °C when the system is in a patient control mode (e.g. Control Patient, Cool
Patient or Rewarm Patient).
Patient Temperature 2 channel is made inactive.
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32
Patient Temperature 2 Calibration Error
The system is unable to calibrate the Patient Temperature 2 channel within ±
1.0 °C when in Manual Control mode.
33
Water Temperature High
The primary outlet water temperature is above 44°C (111.2 °F).
34
Water Temperature High
The primary outlet water temperature is above 42.5°C (108.5 °F)
35
Water Temperature Low
The primary outlet water temperature is below 3.5°C (38.3 °F).
36
Water Temperature High
The secondary outlet water temperature is above 44°C (111.2 °F).
37
Water Temperature High
The secondary outlet water temperature is above 43°C (109.4 °F).
38
Water Temperature Low
The secondary outlet water temperature is below 3.0°C (37.4 °F)
40
Unable to Maintain Stable Water
Temperature
In Manual Control mode, the system is unable to control the water temperature within 1.0 °C/°F of the water target after 25 min. in the current mode or
since last change to water target temperature.
41
Low Internal Flow
Insufficient internal flow during system priming or pre-conditioning.
43
User Settings Not Saved
The user settings are invalid and are unable to be saved. The saved system
default settings are restored.
44
Invalid System Log Entry
One or more of the entries into the system event log is invalid.
The system event log is used by clinical engineering personnel for product
service.
This issue does not affect the performance of the system to deliver patient
therapy.
45
AC Power Lost
The AC power was lost while the power switch was in the On position.
46
Control Panel Communication
The control panel is not communicating with the system.
47
Control Panel Communication
The control panel is not communicating with the system.
48
Patient Temperature Out Invalid
The Patient Temperature Out calibration data in non-volatile memory is
invalid.
50
Patient Temperature 1 Erratic
Patient Temperature 1 discontinuity. There has been a significant change in
patient temperature over the past 8 minutes.
51
Patient Temperature 1 Below Control
Range
Patient Temperature 1 is less than 31°C (87.8°F) while in a patient control
mode (e.g. Control Patient, Cool Patient, or Rewarm Patient).
52
Extended Period of Cold Water
The circulating water temperature has been below 10°C (50°F) for 8 of the
previous 10 hours.
The alert will recur after 1 hour if the condition continues. After the device
has issued 11 extended cold water exposure alerts, it will issue a prolonged
cold water exposure alarm.
Released
Patient Temperature 2 channel is made inactive.
Extended periods of cold water delivery may increase the risk for skin injury.
Assess patient’s skin underneath the ArcticGel™ Pads.
53
Prolonged Cold Water Exposure
The circulating water temperature has been below 10°C (50°F) for a prolonged period of time. The extend period of cold water alert has been issued
11 times. The alert was first issued after the system sensed that the water
temperature was below 10°C (50°C) for 8 of 10 hours. The alert was then
issued an additional 10 times every 1 hour because the situation was not
resolved.
Prolonged cold water exposure may increase the risk for skin injury. Assess
patient’s skin underneath the ArcticGel™ Pads.
60
Non-Recoverable System Error
Control processor and Monitor processor start up synchronization fault.
61
Non-Recoverable System Error
Control processor parameter memory fault.
62
Non-Recoverable System Error
Monitor processor parameter memory fault.
64
Non-Recoverable System Error
Unable to enable pump power (Control processor).
65
Non-Recoverable System Error
Unable to enable pump power (Monitor processor).
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66
Non-Recoverable System Error
Unable to disable pump power (Control processor).
67
Non-Recoverable System Error
Unable to disable pump power (Monitor processor).
69
Non-Recoverable System Error
Interprocessor communication fault.
70
Non-Recoverable System Error
Mains signal is missing or inconsistent.
71
Non-Recoverable System Error
Primary outlet water temperature sensor out of range – high resistance.
72
Non-Recoverable System Error
Primary outlet water temperature sensor out of range – low resistance.
73
Non-Recoverable System Error
Secondary outlet water temperature sensor out of range – high resistance.
74
Non-Recoverable System Error
Secondary outlet water temperature sensor out of range – low resistance.
75
Non-Recoverable System Error
Inlet water temperature sensor out of range – high resistance.
76
Non-Recoverable System Error
Inlet water temperature sensor out of range – low resistance.
77
Non-Recoverable System Error
Chiller water temperature sensor out of range – high resistance.
78
Non-Recoverable System Error
Chiller water temperature sensor out of range – low resistance.
79
Non-Recoverable System Error
Primary and secondary outlet water temperature sensors differ by greater
than 1 °C.
80
Non-Recoverable System Error
The control processor failed to detect a simulated water temperature fault.
81
Non-Recoverable System Error
The monitor processor failed to detect a simulated water temperature fault.
82
Non-Recoverable System Error
Processor fault.
83
Non-Recoverable System Error
Monitor processor communications fault.
84
Non-Recoverable System Error
Control processor communications fault.
86
Non-Recoverable System Error
Power supply voltage fault.
98
Non-Recoverable System Error
Processor fault.
99
Non-Recoverable System Error
Program unexpectedly aborted.
100
Unable to Save Default Settings
The system is unable to save the default settings in Advanced Setup.
101
No USB Drive Found During Save
When attempting to Download Patient Data, no flash drive was found in the
USB port.
102
Control Panel Locked
Approximately 2 minutes after Control Patient, Cool Patient, Rewarm Patient
or Manual Control is activated, the control panel screen will lock to prevent
inadvertently changing parameters during patient therapy.
An image of a padlock will appear over the Therapy Selection button when
the screen is locked.
103
Unable to Communicate Settings
There was an error communicating Hypothermia Settings, Normothermia Settings or Advanced Setup settings to the system.
104
Manual Control End
The Manual Control has reached the end of its set duration.
105
Cool Patient End
Cool Patient timer has reached the end of its set duration and Rewarming
Begins in Hypothermia Settings is set to Manually.
See Help Index topic Hypothermia Settings – Rewarming Begins for more
information.
12
106
Non-Recoverable System Error
Graphic user interface communications lost with control module control
processor.
107
Non-Recoverable System Error
Graphic user interface communications lost with control module monitor
processor
108
Operating Mode Incorrect
The system has not successfully entered the commanded therapy mode.
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109
Esophageal Probe Recommended
Control Strategy 3 has been chosen which allows the Patient Target temperature to be set between 32.0 °C and 32.9 °C (89.6 °F to 91.2 °F).
110
Data File Corrupted
The data file which contains the system default settings has been corrupted.
The system has automatically reset the system to the factory defaults.
111
Confirm New Patient
A New Patient treatment was selected, but this system has treated a patient
within the last 6 hours and a Current Patient treatment is still available.
112
Confirm Return to Cooling Phase
Treatment is currently programmed to be in the Rewarming phase, but the
Start button in the Cool Patient window was pressed.
113
Reduced Water Temperature Control
The system has detected that the water temperature has not been controlled
as accurately as expected in the last 30 minutes.
This situation may be temporary due to sudden patient temperature changes,
interruption in water flow, or blockage of air flow by an obstruction or dirty
filter.
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Released
For patient target temperatures between 32ºC to 32.9ºC (89.6ºF to 91.2ºF) an
esophageal temperature probe should be used. During the hypothermia
induction phase, the esophageal temperature tracks real-time core temperature changes more closely than bladder or rectal temperature. Due to this lag
time when using bladder or rectal temperature sites, actual patient core temperatures may be lower than measured. Therefore, the use of esophageal
temperature is recommended for patient temperature control below 33ºC.
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Chapter 7 – Troubleshooting
7.1 Diagnostic Screen
The Diagnostic screen allows the user to view the flow, pressure, patient
temperatures and individual water temperature sensor readings. This
information is valuable during the troubleshooting process. The Diagnostic
screen can be accessed from the Maintenance and Service Topic in the
Help Index.
7.3 General Troubleshooting Guide
A calibration check is an effective method for verifying proper operation of
the device. Many technical issues with the Arctic Sun® 5000 Temperature
Management System can be diagnosed during a calibration check. See
Chapter 9 for the Calibration Check procedure.
Released
Case data recorded at one minute intervals such as water flow rate,
pressure, water and patient temperatures, pump and heater commands
for the previous 10 cases are available for download from the USB port.
This can be valuable information when attempting to troubleshoot reported
problems from previous cases. The download feature is available from the
Advanced Settings screen.
The following are the most common issues and methods of resolution:
7.3.1 Device Not Controlling Patient Temperature
The Arctic Sun® 5000 Temperature Management System has a
sophisticated control algorithm which calculates the appropriate water
temperature based on a comparison of the patient’s actual temperature
versus the programmed target temperature. The system also monitors the
actual water temperature versus the commanded water temperature. If the
system fails to deliver the commanded temperature within a short period
of time, alarm 113 will occur. This is the best indication as to whether the
system was controlling appropriately during patient therapy. If this alarm
has occurred, it can be viewed in the Event Log viewable on the device, as
described in Section 7.2.
7.2 Event Log
The Event Log will record non-recoverable system alarms and recoverable
operational alarms and alerts from the last 10 cases. The Event Log can be
accessed from the Maintenance and Service Topic in the Help Index.
14
7.3.2 Patient Does Not Cool
To verify the cooling function of the device, perform the following steps:
• Check that the water temperature limits have not been adjusted too
high on the Normothermia or Hypothermia Therapy Setting screen.
• With the device at room temperature power the device on, wait 5
minutes, and check the Chiller temperature (T4 on the Diagnostic
screen). This temperature should be below 10° C (50° F).
• Connect the Fluid Delivery Line and a Shunt Tube, initiate Manual
Control, and set water target to 4° C (39°F).
• Verify that the water temperature lowers to less than 10 ° C (50° F)
within 10 minutes.
• If no problems seem evident, performing a calibration check
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7.3.4 Device Will Not Fill
If the device will not fill, perform the following steps:
• Ensure the Fluid Delivery Line is connected with no Shunt Tube or pads
connected. The Fluid Delivery Line must be connected in order for the
device to fill.
• Replace the fill tube. Attempt filling to check for resolution.
• To confirm Fluid Delivery Line does not leak air, remove the Fluid
Delivery Line, place thumb over the left port of the Inlet/Outlet
Manifold, and repeat fill process.
Chapter 8 – Component Replacement
The Arctic Sun® 5000 Temperature Management System is designed and
built to have a high degree of reliability; however, failures can occur. Use
the troubleshooting methods in Chapter 6 or consult with Medivance
Technical Support to determine the root cause component for the failure.
Once this root cause component for the failure has been determined,
follow the appropriate procedure for removal and replacement of
the component. An abbreviated list of spare parts and accessories is
located in Appendix B. For parts not listed, contact Medivance Technical
Support. In general, reverse the order of removal to install a replacement
component. Please note any special instructions to the contrary.
Caution: Observe precautionary electrostatic discharge control procedures (ESD) when working with circuit card assemblies.
7.3.5 Control Panel Will Not Power On
To verify proper operation of the Control Panel, perform the following steps:
• Check that mains power is available by ensuring the amber light is lit
on the power switch.
• Remove the back panel and shell. Check connection at top of card
cage to Control Panel and verify the connection is seated properly.
7.3.6 Low Flow Alarm
If the device shows a Low Flow alarm, perform the following steps:
• Power device on; ensure Fluid Delivery Line is connected.
• With no pads or Shunt Tube attached, start the device in Manual
Control and allow 3 minutes for bypass flow to stabilize.
• Using the Diagnostic screen, verify a flow rate of > 1.5 lpm and
a Circulation Pump Command of less than 70%. If this cannot be
achieved it indicates an air leak either internal to the device or in the
Fluid Delivery Line.
• To confirm there is no internal air leak, remove Fluid Delivery Line and
place thumb over the left port. Repeat the test in step 3.
• To confirm there are no leaks in the Fluid Delivery Line valves, attach
a shunt tube to any set of valves and, initiate Manual Control. Watch
for water to flow through tube, then without stopping, move shunt tube
quickly to the opposite branch of the Fluid Delivery Line. Watch for
water flow through the tube. Place the Fluid Delivery line on the floor.
Press Stop. Remove the shunt tube. Monitor the Fluid Delivery Line
valves for any water leaks over the next 5 minutes.
• To confirm the pad connector seals are not damaged, inspect the
orange seal at the end of each valve and look for damage. Actuate
each valve and ensure it moves freely.
Continued on next page...
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7.3.3 Patient Does Not Warm
To verify the heating function of the device, perform the following steps:
• Verify with clinical staff that flow rate during therapy was at least 1 lpm
as water flow rates below this will limit heater power.
• Check that the water temperature limits have not been adjusted too
low on the Normothermia or Hypothermia Therapy Setting screen.
• Connect the Fluid Delivery Line and the Shunt Tube, initiate Manual
Control, and set water target to 42° C (108°F).
• Verify water temperature increases from room temperature to at least
35° C (95° F) within 10 minutes.
• If unsuccessful, remove back panel and shell and check Heater power
connection on Mains Voltage Circuit Card.
• If no problems seem evident, consider performing a calibration check.
7.4 Troubleshooting Assistance
For further assistance with troubleshooting, contact your distributor or
Medivance Technical Support.
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Card Cage
Inlet/Outlet Manifold
Inlet/Outlet Ports
Serial Number Label
Power Inlet Module
Drain Ports
Chiller Condenser
Chiller Frame
Shell
Fig. 8-1 Control Module, rear view after removal of Back Panel
16
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Power Switch
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Manifold Harness
Level Sensor Cable
Flowmeter Cable
Card Cage
A/C Breaker Harness
Chiller Evaporator
Tank
Heater Power Cables
Chiller Frame
Compressor
Released
Main Harness:
• Pump Connections
• Control Panel Connection
• Chiller Power Connection
Fig. 8-2 Control Module, front inside view
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Card Cage
Inlet/Outlet Manifold
Chiller Evaporator
Chiller Pump
Chiller Fan
Hot Gas Bypass Valve
Fig. 8-3 Control Module, right inside view
18
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Chiller Frame
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Chiller Frame
Evaporator
Tank
Heater Cables Connection
A/C Harness Connection
Chiller Compressor
Released
Card Cage
Fig. 8.4 Control Module, left inside view
The electronics controlling all machine processes are found in two areas: (1) the
card cage, located at the top of the internal components, and (2) mounted to the
lower part of the frame.
Printed on: , ; Printed by: .
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AS5000 SERVICE MANUAL
Input/Output (IO)
Circuit Card
Isolation
Circuit Card
Power
Circuit Card
Fig. 8-5 Card cage, circuit card identification
The following two circuit cards are mounted on the lower part of the frame:
Fig. 8-7 Mains Voltage Circuit Card
Fig. 8-6 Power Module
20
Printed on: , ; Printed by: .
Released
Processor
Circuit Card
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ENGLISH
Total Drain
A total drain activates the pumps to remove residual water. It is essential
to perform this process if the device is to be shipped or if the hydraulic
components are to be removed.
8.1 Tools Required
Tools required for component replacement are as follows:
•
•
•
•
•
3/8” nut driver
5/16” nut driver
7/16” nut driver
Phillips head screwdriver
small flat blade screwdriver
•
•
•
•
•
wire cutter, small
pliers
7/16” wrench
9/16” wrench
1/16” hex key
1. After completing a Passive Drain (above), power on the Control
Module.
2. Go to the Advanced Setup screen from the Patient Therapy
Selection screen on the Control Panel, press the Total Drain Start
button and follow the instructions.
8.2 Drain the Control Module
Drain the device before disassembling it. A passive drain is adequate for
most maintenance procedures.
Passive Drain
•
Arctic Sun® 5000 Temperature
Management System drain tube
1. Turn the Control Module off. Caution: draining the system with power
on may damage the chiller.
2. Connect the Drain Tube to the two drain ports on the back of the
device. Place the other end of the Drain Tube into a container with
a capacity of at least four liters. The device will passively drain all
tubing, reservoirs and pumps within the system. There will still be
some moisture present as you disassemble the unit.
Fig. 8-9 “Total Drain” option on Advanced Setup screen
Released
Tools and supplies required:
7
Fig. 8-8 Passive drain
Printed on: , ; Printed
.
8.3by:
Remove
Back Panel
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AS5000 SERVICE MANUAL
Tools and supplies required:
Tools and supplies required:
•
1. Remove Fluid Delivery Line and Patient Temperature Cable.
2. Using the 3/8” nut driver, remove the four black bolts on the back
panel.
3. Using the Phillips head screwdriver, remove the two screws holding
the power cord bracket and unplug the power cord. Take extra care
not to drop these screws into the unit.
4. Lift off the back panel and set it aside.
7/16” nut driver
1. Remove the six bolts that hold the metal frame to the shell.
2. With one hand holding the back handle and the other hand in the
horizontal slot on the front (located a few inches below the Control
Panel), gently rock the shell forward. The Outer Shell will slide off.
Set it down a few inches away from the frame.
3. There are two cable harnesses connecting the control panel on the
shell to the top of the card cage. Disconnect these at the card cage.
Fig. 8-11 Remove 6 bolts (Step 1)
Fig. 8-10 Back panel with indication of bolts to be removed (Step 2, left)
8.4 Remove Outer Shell
22
Printed on: , ; Printed by: .
Released
• 3/8” nut driver
• Phillips head screwdriver
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ENGLISH
8.5 Removing / Replacing Circuit Cards from Card
Cage
To access the cards in the card cage, remove the back panel and the
outer shell as shown in Steps 8.3 and 8.4.
Caution: Observe electrostatic discharge control procedures when
handling circuit cards.
A) Input / Output Circuit Card
Tools and supplies required:
• wire cutters
• 1/16” Allen wrench / hex key
• flat blade screwdriver
Released
Fig. 8-12 Cable harnesses to be removed (Step 3)
1. Carefully disconnect each of the eight cables connected to the card,
releasing each locking tab before pulling. These connections are
illustrated in Fig. 8-15.
2. Clip cable ties with wire cutters as needed.
3. When re-connecting the connections after repair, check labels on J6
and J4 connectors to ensure correct connections.
4. Remove the Allen head screw on the right of the I/O Circuit Card
face plate.
5. Slide a screwdriver beneath the I/O Circuit Card to gently pry it away
from its base.
6. Carefully pull the circuit card outward to release it from the slots it
sits in.
7. When replacing the circuit card, ensure that the card fits into the
retaining grooves on either side of the card cage.
8. After replacing the I/O Circuit Card, perform a calibration (see
Chapter 9).
Fig. 8-14 Unplug connections from I/O Card (Step 1)
Fig. 8-13 Shell separated from internal components
Printed on: , ; Printed by: .
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