BELMONT MEDICAL TECHNOLOGY
FMS 2000 Fluid Management System Operators Manual Rev AB
Operators Manual
53 Pages

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Page 1
OPERATOR’S MANUAL
The Belmont® Rapid Infuser, FMS2000
780 Boston Road Billerica, MA 01821, USA 866-663-0212 US/Canada 978-663-0212 Worldwide
The Belmont® RAPID INFUSER, FMS2000
OPERATOR’S MANUAL
Belmont Instrument Corporation 780 Boston Road Billerica, MA 01821, USA
Wellkang Tech Consulting Suite B, 29 Harley Street London W1G 9QR England, United Kingdom Tel: +44 (20) 32876300 Fax: +44 (20) 76811874
All service calls & questions should be directed to 855-397-4547 US/Canada 978-663-0212 Worldwide CAUTION: Federal law (USA) restricts this device to sale by or on the order of a physician. P/N 702-00001 Rev AB
The Belmont® Rapid Infuser FMS2000 Operator=s Manual Table of Contents
Page No. CHAPTER 1: INTRODUCTION - SYSTEM OVERVIEW Introduction ... 1 Indications for Use ... 1 Contraindications ... 1 ® Overview of the Belmont FMS2000 ... 2 Control Panel: Display and Keys ... 3
CHAPTER 2: OPERATION Introduction ... 4 Step-by-Step Operating Procedures ... 5 IV Pole Mounting ... 5 Installing the Disposable Set ... 6 Installing the Optional Large Reservoir ... 7 Powering On the System ... 8 Installing Fluid Bag ... 8 Priming the Main System ... 9 Priming the Patient Line ... 9 Connecting to Patient ... 10 Match the Infusion Set to Flow Rate and Fluid Type ... 10 Initiating Infusion ... 10 Main Infusion ... 11 Pressure Control ... 11 Automatic Air Purging ... 11 Bolus Infusion (Infuse a Fixed Volume)... 11 Recirculation ... 12 Stop ... 12 Battery Operation ... 12 Low Battery ... 12 Accidental Power Off... 13 End of Procedure ... 13 Emergency Manual Operation ... 13
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Page No. CHAPTER 3: ALARMS AND TROUBLESHOOTING GUIDE Introduction ... 14 A. Operational Alarms ... 14 Air Detection ... 14 Door Open ... 15 Fluid Out ... 15 High Pressure ... 16 Low Battery ... 16 Missing Disposable ... 16 B. Heating Alarms... 17 Heating Fault ... 17 Over Temperature ... 17 C. Hardware Alarms ... 18 Air Detector Fault ... 18 Heater Fault Latch ... 18 Heater Power Read Back Fault ... 18 Heater Over Power Fault ... 18 Power Module Overtemp ... 19 Pump Fault ... 19 Valve Fault ... 19 Watchdog... 19 Troubleshooting Other Operational Difficulties ... 20
CHAPTER 4: PARAMETERS SETTING AND PREVENTIVE MAINTENANCE Introduction ... 22 A. System Setup ... 23 1. Date/Time ... 24 2. Alarm Volume ... 25 3. Display Brightness ... 25 4. Key Rate ... 25 5. Bolus Volume ... 25 6. Pressure Limit ... 25 B.
Service and Preventive Maintenance Schedule ... 26 Schedule 1 ... 26 Schedule 2 ... 26
C.
Routine Maintenance ... 27 1. Clean and/or Disinfect Exterior ... 27 2. Fluid Out and In-Line Air Detectors ... 27 3. Power Cord ... 27 4. Temperature Probes ... 27 5. Fan Guards ... 27 6. Seals ... 27 7. Instrument Door and Ceramic Disks ... 28 8. Rubber Feet ... 28
D.
Testing the System and Operational Check-Out ... 29 1. Visual Inspection ... 29 2. System Operational Checkout ... 30 3. Battery Run Time ... 30 4. Electrical Safety Test - Leakage Current ... 31 5. Hardware Verification... 33 6. Clean the pump head... 38 ii
Page No. E.
Checklist ... 39
F.
Electromagnetic Compatibility ... 41
G.
Fuse ... 43
H.
Calling for Service ... 43
CHAPTER 5: TECHNICAL SPECIFICATIONS
Dimensions ... 44 Power AC ... 44 Battery ... 44 Environment ... 45 Operating Parameters ... 45 Operating Panel ... 46 Safety and Monitoring ... 46 Alarm States and Controls ... 47 Classifications ... 47 Symbols and Definition ... 48
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It is essential that you read and understand this manual before operating the system.
®
The Belmont Rapid Infuser, FMS2000, warms blood, colloid, and crystalloid to physiologic temperature at user-set rates from 10 to 750 milliliters per minute (ml/min) with a 1000 ml/min as an option. 2.5 and 5.0 ml/min (150 and 300ml/hr) are also available to keep the venous line open but no heating is provided at these rates. The system monitors temperature, line pressure, and air in the fluid path to ensure safe operation and alarms at all unsafe conditions. A hardware override circuit prevents unsafe operation in case of system computer failure. A touch screen displays flow rate, total fluid infused, temperature, line pressure, alarm and status messages and proper procedures to proceed safely after an alarm situation. Keys appropriate to a particular point in the operation are displayed on the touch screen. A battery backup allows for mobile transport of the patient. During battery operation, fluid warming is disabled while pump operation and safety monitoring remain active. The built-in rechargeable battery automatically charges whenever the system is connected to line power.
INDICATIONS FOR USE $
Infusion of crystalloid, colloid, or blood product, including packed red blood cells, as volume replacement for patients suffering from blood loss due to trauma or surgery.
$
Infusion of warmed fluid to re-warm patients after surgery or for hypothermia.
$
Infusion of warmed fluid for irrigation in urology procedures.
CONTRAINDICATIONS $
The system should not be used where the desired flow rate is below 2.5 ml/min or above 1000 ml/min.
$
The system should not be used to warm platelets, cryo-precipitates, or granulocyte suspensions.
$
This system is not intended for drug administration.
$
The Belmont FMS2000 should not be used where rapid infusion is medically contraindicated.
$
Lactated Ringer’s solution, dextrose in water, and hypotonic sodium chloride solutions th should not be added to blood components (AABB Technical Manual 17 edition, page 624)
®
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OVERVIEW OF THE BELMONT FMS2000 The complete system consists of the FMS2000 Control System, which is mounted on an IV pole, and the FMS2000 Disposable Set. The FMS2000 can be used only with the supplied disposables. A large volume 3-liter reservoir is available as an optional accessory for convenience in cases involving very large infusion volumes, see page 8. The Disposable Set is preconnected and has a sterile fluid path. It is intended for single patient use only. Major components of the Control System: 1. Fluid Out Detector detects and alarms at an out of fluid situation. 2.
Power Switch turns system power on and off.
3. Roller Pump is designed for pumping accuracy and reliability.
IR (5) Probe
Air (6) Detector
Display (4)
4. Display and control panel show status and alarm messages with touch keys at the bottom of the screen.
Fluid Out (1) Detector
5. IR Temperature Probe (Output Probe) monitors output fluid temperature as it exits the Heat Exchanger.
Power (2) Switch
6.
Valve (7) Wand Roller Pump (3) IR Probe (8)
Air Detector detects air in the line. If air is detected the valve wand is closed immediately to prevent air into the patient. Pumping and heating stop, alarm sounds and “Air Detection” message is displayed on screen.
7. Valve wand closes off the recirculation line when the system is in the infusion mode and closes off the infusion line when the system is in the recirculation mode. It immediately closes the infusion line to the patient when an error condition occurs which may require user intervention. 8. IR Temperature Probe (Input Probe) monitors input fluid temperature as it enters the Heat Exchanger.
System Diagram Showing Main Components
2
CONTROL PANEL: DISPLAY AND KEYS The control panel consists of the touch screen display, which incorporates a bright graphical display with touch pad keys. The display shows status and alarm messages at the top and middle, and contains the touch keys at the bottom.
CONTROL PANEL SUMMARY Status Display:
Flow Rate in ml/min Volume Infused Infusate Temperature in C Pressure in the Fluid Line in mm Hg Bolus Volume (when infusion of a fixed bolus of fluid is desired).
Function Keys: The keys that control all system functions are displayed on the screen. The screen is changed each time a function key is pressed. Only keys that are relevant to the desired function are presented. The active key is highlighted. There are three (3) different levels of sensitivity: Fast, Medium, and Slow. The key sensitivity is set at the factory to medium, but can be adjusted by the operator in SERVICE MODE. See Chapter 4, page 25 for ‘Key Rate’ sensitivity setup. Alarm Display: Graphical alarm messages indicating where errors have occurred and suggested operator action.
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Chapter 2: Operation
OPERATION This chapter explains the procedure for setting up and initiating safe and effective operation ® of the Belmont Rapid Infuser, FMS2000.
WARNING! Do not use this product in the presence of flammable anesthetics.
WARNING! To avoid risk of electric shock, this device must only be connected to a supply main with protective earth.
WARNING! Do not use with pressure infusers or “bag squeezers”. The system pump provides adequate pressure to infuse fluid.
WARNING! ®
The Belmont Rapid Infuser, FMS2000, is not for use in warming platelets, cryo-precipitates, or granulocyte suspensions.
WARNING! ®
The Belmont Rapid Infuser, FMS2000, is intended for infusion of high volume warm replacement fluid or blood component. It is not intended for drug administration.
WARNING! Do not mix lactated Ringer’s or other solutions containing calcium with citrated blood products. Use only anticoagulated blood products
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Chapter 2: Operation
STEP-BY-STEP SUMMARY OF OPERATING PROCEDURES SET-UP INSPECT THE SYSTEM $ $ $ $
Inspect the system to ensure that you have all necessary components.
Power cord Reservoir Support Disposable Set Large Reservoir and holder, if needed
Use only supplied power cord.
IV POLE MOUNTING $
IV Pole: 5 wheel, maximum diameter 1 1/4"
$
Install the Support Assembly 30" from the ground, if not already installed.
$
Mount the FMS2000 on the IV Pole above the Support Assembly
$
RESERVOIR SUPPORT
Pole Clamp Release Handle
IV POLE
30 in (76 cm)
FMS UNIT
Install the Reservoir Support app. 9" above the top of the system SUPPORT CLAMP
CAUTION: PLASTIC WASHER
1.
Check that the system is securely clamped to an IV pole and will not tip over
Install the support assembly (support clamp and washer) approximately 30" from the ground. $
While holding clamp closed, loosen the screw to open up the clamp. Install clamp on the IV pole, holding clamp close and tighten screw using the supplied 3/16 Allen wrench.
$
Snap the plastic washer onto the IV pole above the support clamp.
2.
Lift up on the “Pole Clamp Release Handle” to open. Mount the system onto the IV pole, above the support assembly, by pushing down on the pole clamp release handle. Check that the system is locked in place before proceeding.
3.
Clamp the reservoir support onto the IV pole approximately 9" above the FMS2000. Make certain that there is nothing obstructing the air vents at the bottom of the system.
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Chapter 2: Operation INSTALLING DISPOSABLE SET
1.
Snap reservoir chamber into the reservoir support clamp.
WARNING: The disposable set is for single patient use only. Do not reuse.
2.
Open the door. Insert heat exchanger with red arrow pointing up (Red tinted tubing to red stripe on unit.)
3.
Firmly position the interlock block into the fluid out detector.
4.
Guide the curved piece of pump tubing (Blue tinted tubing) over the pump head. Check that the thinner recirculate line is in the grove to the right.
Store the disposable set in a dry wellventilated area free from exposure to chemical vapors. We strongly recommend loading and priming the disposable set just prior to the procedure. Bag Clamps
Air Vent
Bag Spikes Coarse Filter
Reservoir Chamber
Heat Exchanger Red Tinted Tubing Pressure Chamber
Check Valve
Interlock Block
Do not kink or twist the tubing
Pump Tubing Infuse Line
5. Place the pressure chamber into the pressure chamber well. Firmly insert the wider infuse line into the air detector and to the left of valve wand.
Recirculate Line
Roller Clamp
Patient Line
3-Spike Disposable set with key components
6.
7.
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Do not apply excessive pressure to the pressure transducer. The pressure transducer can be damaged with excessive force. Do not use the system if the pressure transducer is damaged. Place the thinner recirculate line to the right of the air detector, and to the right of the valve wand. Close and latch the door. Make certain the pump tubing is not caught. Connect the patient line.
Chapter 2: Operation INSTALL OPTIONAL LARGE RESERVOIR, IF NEEDED $
Install large reservoir holder
$
Install large reservoir
1.
$
Disconnect the larger pump tubing by pressing in the luer lock tab and pulling out the connector.
$
Disconnect the thinner recirculate line by unscrewing the connector.
2.
Attach the large reservoir holder onto the IV pole and place the reservoir into the holder.
3.
Assemble the large reservoir using aseptic techniques by attaching the three fluid supply tails onto the top of the reservoir.
4.
Connect the large reservoir to the luer of the 3Spike disposable set.
5.
Adjust the reservoir holder to make sure that the two connection leads underneath the reservoir are not stretched or kinked.
CAUTION: Do not pressurize or apply a vacuum to the reservoir
Using aseptic techniques, remove the reservoir chamber from the 3-Spike disposable set by disconnecting the luer connectors.
Stretched or kinked connection leads can cause flow restrictions and frequent Fluid Out alarms.
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Chapter 2: Operation POWER ON $
Check that the detachable power cable is securely seated in the main power receptacle.
$
Plug the system power cord into a grounded, 3-prong, 20 Amp, AC receptacle. Do not use an adaptor for ungrounded outlets.
1.
Turn power on by firmly pressing the circuit breaker to the ON position. The system will perform a self-check to check the integrity of system parameters.
2.
AC POWER PRESENT appears at the logo screen when the system first powers up. Check the power cord and AC receptacle connections if the statement does not appear.
3.
PRIME screen will appear.
4.
Press NEXT to go to the PRIME screen.
Power-Up Screen
U
•
If you turn power ON without the disposable set, MISSING DISPOSABLE audible alarm message will appear.
•
Open the door or press MUTE to silence the alarm then install the disposable set.
Missing Disposable Screen INSTALLING FLUID BAG Install solution compatible with blood for the main system prime.
1.
Hang fluid bag(s) on the IV pole.
2.
Completely close bag clamps, remove the bag spike cap(s). Spike fluid bag(s), pierce it fully to ensure that fluids flow freely.
3.
Open bag clamps.
,
Prime Screen
8
•
When hanging the fluid bag above the machine, the pump tubing that is seated in the fluid out detector should not be stretched. Stretching the pump tubing may cause false Fluid Out alarms.
•
The recirculate line must not be kinked or restricted.
Chapter 2: Operation PRIME THE MAIN SYSTEM Prime the main system with solution compatible with blood. Do not prime with blood.
1.
Press PRIME to recirculate 100 ml of fluid at 500 ml/min to remove air and replace the main system with fluid.
2.
The prime volume, 100 ml, countdown is displayed on the screen. Stop automatically when countdown reaches 0 ml. SYSTEM PRIMED screen appears.
System Priming Screen CAUTION: Immediately wipe any spills from the device PRIME THE PATIENT LINE Y
•
If after 30 seconds and the prime volume remains at 100 ml, the system will stop, alarm and instruct the user to unclamp the lines and resume prime.
•
If prime has to be stopped, press STOP. The prime volume countdown will remain on the screen. Press RESUME PRIME to continue prime.
To remove air from the patient line.
D D
1.
Open the roller clamp and remove the luer cap from the patient line.
2.
Press PT. LINE PRIME Press once, prime at 50 ml/min. Press and hold, prime at 200 ml/min.
3.
Press STOP after no air in patient line.
D
System Primed Screen D
WARNING!
D
Before continuing, you must inspect and make certain that the patient line is completely primed and free of air. Any air bubbles after the valve wand in the patient line must be removed before the procedure can safely continue.
Patient Line Primed Screen
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Chapter 2: Operation CONNECT TO THE PATIENT Match infusion set to flow rate and fluid type, see chart.
Flow Rate
Maximum Achievable Flow (at 300 mmHg with 2" cannula) 1000 900 800 700 600 500 400 300 200 100 0
1.
Select an appropriate cannula size for decided flow rate.
2.
Using aseptic technique, make patient connection without entrapping air.
CAUTION: A single dedicated intravenous access should be used exclusively for infusing blood components and solutions compatible with blood. 22g 20g 18g 16g 14g 12g Crystalloid
PRBC
INITIATING INFUSION D
1.
Press INFUSE to start infusing at 10 ml/min.
2.
Press 500 ML/MIN key to infuse at 500 ml/min or adjust flow rate, as needed, by pressing INFUSE RATE /INFUSE RATE key (increase/decrease by 10 ml/min).
D
There is no heat at 2.5 and 5.0 ml/min settings. Message ‘LOW FLOW, NO HEAT’ will flash on the screen indicates there is no heat at these rates.
Patient Line Primed and Infuse Screen
WARNING: Do not mix lactated Ringer’s or other solutions containing calcium with citrated blood products. Use only anticoagulated blood products
Infuse Screen
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Chapter 2: Operation MAINTAIN INFUSION
Routinely check patient and system parameters, on screen. Respond to and correct system alarms. “There are no definitive rules for the length of time filter may remain in use. A reasonable maximum time limit for use of blood filters is 4 hours”*. * American Association of Blood Banks, Technical Manual CAUTION: Replace reservoir chamber or disposable set when the filter becomes clogged.
Infuse Screen Pressure Control Regulate the pump speed to keep line pressure under the user-set pressure limit.
The pressure limit is set at the factory to the maximum limit of 300 mmHg. Limit can be changed, see Chapter 4, page 25. The pressure status line flashes and periodic beeps while the system is under pressure control. Pressure control is due mainly to the small orifice of the infusion set or any occlusions in the line.
Automatic Air Purging After every 500 ml of fluid infused, the system automatically purges air from the system by closing the infusion line and opening the recirculation line for a few seconds.
The recirculate rate is temporarily set to 500 ml/min, if the flow rate is at or below 500 ml/min, and at the actual flow rate, if the flow rate is above 500 ml/min. The RATE status line displays REMOVING AIR during this process. The volume readout (VOL) remains unchanged during automatic air purging and resumes counting when infusion resumes. When infusion resumes, the system returns to the previously set rate.
Bolus Deliver fixed volume, factory set to 200 ml, at a rate of 200 ml/min. To change the flow rate during the bolus infusion, press the INFUSE RATE or INFUSE RATE or 500 ml/min RATE key.
Bolus volume can be changed in the Parameters Set-Up screen (Chapter 4, page 25) or by pressing and holding the BOLUS key in the Infuse screen. The new bolus volume will appear in the VOL (volume) status line with the prefix of BOL (bolus). Releasing the Bolus key will start the infusion. Two sets of numbers are displayed within the BOLUS key space. The top number is the bolus value set and the bottom number is the volume pumped, and is counting up from 0 to the volume set on the key. At the end of the bolus volume, the system beeps and returns to the previously selected flow rate if the previous rate was 50 ml/min or lower. If the previous rate was higher than 50 ml/min, the flow rate will be set to 50 ml/min.
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Chapter 2: Operation RECIRC
WARNING:
Recirculate fluid, warm, and remove air in the main system at a preset rate of 200 ml/min. Recirculation automatically stops and beeps after 5 minutes.
Excessive or prolonged recirculation may damage red blood cells by exposing them repeatedly to the rollers inside the pump head.
STOP
Temporarily halts pumping and heating. Status display continues to be active.
BATTERY OPERATION 1.
Press RECIRC key to preheat fluid in the reservoir chamber.
2.
Unplug the system from the wall outlet. The status line that displays temperature will be flashing BATTERY NO HEATING to indicate the system is now in battery mode, the maximum flow rate is 50 ml/min, and heating is suspended.
3.
Adjust the flow rate by pressing INFUSE RATE or INFUSE RATE or press 50 ML/MIN to immediately set the infuse rate to the maximum rate of 50 ml/min.
4.
When the system is plugged back to the AC outlet, the flow rate stays at 50 ml/min if the previous flow rate was greater than 50 ml/min. The system will return to the previous flow rate if the previous rate was 50 ml/min or lower.
5.
The normal running time in battery is at least 30 minutes.
Battery Operation Screen
CAUTION Battery operation should be used only briefly or at very low flow rates because there is no heating.
LOW BATTERY When the battery runs low, the system will display BATT LOW message and sound an audible alarm. The system should be plugged into an AC outlet to continue operation and charge the battery. The normal recharge time is 8 hours.
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Chapter 2: Operation ACCIDENTAL POWER OFF o
If the circuit breaker was turned to the STANDBY position while the system is pumping, the system will stop pumping, and alarm. This message is to protect the system from being accidentally powered down during a procedure. To power down the system, press POWER OFF key, on screen.
Accidental Power Off Screen
To continue with the procedure, turn the circuit breaker back to the ON position and resume operation.
END OF PROCEDURE 1.
If the pump is on, press STOP.
2.
Clamp off the patient line and bag spikes.
3.
Turn the system to STANDBY, using the circuit breaker.
4.
Open the door and remove the disposable set from the system. Practice standard hospital policy when handling and disposing the biohazardous materials.
5.
Follow the cleaning procedures outlined in Chapter 4, page 27 to clean and disinfect the system.
1.
Bypass the system by switching to STANDBY on the circuit breaker.
2.
Open the door to allow the fluid to bypass the roller pump.
3.
Remove the infuse line from the valve wand. The rest of the disposable set may be left intact in the instrument or may be removed.
4.
Open bag clamps and patient line. Apply pressure at the fluid bag to aid flow.
CAUTION: With fluid in the disposable set and the system not powered on, keep the patient line clamped closed when opening the door to prevent uncontrolled fluid flow.
EMERGENCY MANUAL OPERATION
In the event the system is not operational during a procedure, fluid can be infused manually on an emergency basis using pressure or gravity.
WARNING! In emergency manual operation, all safety features of the system have been bypassed. Monitor the patient line to insure that air is not allowed to enter the patient. Do not apply excessive force on the fluid bag to avoid rupturing the disposable set or damaging blood cells.
To avoid rupture the disposable set or damaging blood cells, do not use excessive force on the bag.
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Chapter 3: Alarms and Troubleshooting Guide
ALARMS AND TROUBLESHOOTING GUIDE This chapter describes possible causes for alarm messages with suggestions for corrective actions. When the FMS2000 recognizes a situation that is compromising effective infusing, it stops pumping, heating, moves the valve wand into recirculate position, displays alarm message, instructions for corrective measure, and sounds an audible alarm. To silence the alarm and return to normal operation, follow instructions on the screen.
A.
OPERATIONAL ALARMS ALARM MESSAGE
AIR DETECTION
U
POSSIBLE CONDITION
OPERATOR ACTION
Air in the line.
Open the door to silence the alarm.
Tubing in the air detection sensor is not seated firmly in the detector.
Check for air bubbles and possible leaks.
Leak in the disposable.
Squeeze the tubing directly below air detector to clear any trapped air out of the sensor. There should be no trapped air remaining within the air detector.
Air Detection Alarm Message Screen Air detector sensor dirty.
Check the air detector and make certain that it is clean and nothing is obstructing the sensor.
.
Reseat the tubing in the air detector and make certain that it is seated firmly in the sensor.
Reprime Screen
Air detector electronics defective.
Press REPRIME to reprime main system. If the system does not complete the reprime because the filter in the reservoir chamber is clogged, replace the reservoir chamber or the disposable set and reprime. The system will resume infusion upon completion of the Reprime. Power down and service the machine if error persists.
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Chapter 3: Alarms and Troubleshooting Guide
DOOR OPEN
The door is open.
Close the door to silence the alarm and resume.
No magnet in the door latch.
Check magnet in the door latch. If the door is opened while the system is pumping, the system will immediately stop heating and pumping. The valve moves to the recirculate position and an audible alarm sounds.
Door Open Alarm Screen
FLUID OUT F U D D F
U ,
Press MUTE to silence the alarm. .
DD
UB G F U D.
U
Fluid Out Alarm Screen F U D D F
U ,
.
DD
UB G F U D. 100 ML TO GO
U
Fluid Out Message after Pressing REPRIME Screen
Out of fluid.
If out of fluid, add additional fluid and press REPRIME.
Bag clamps not fully opened or fully spiked.
Open bag clamp or fully spike the bag.
Tubing in the Fluid out sensor is not seated firmly in the detector, or tubing is stretched or pulls away from the sensor, due to vacuum in the line. Clogged air vent filter or coarse blood filter. Reservoir or recirculate line is obstructed.
Detector electronics defective.
Reseat the tubing in the fluid out detector and make certain that it is seated firmly in the sensor.
If the reservoir chamber stays empty during reprime, the air vent filter, on top of the reservoir chamber, may be clogged. In this case, pierce the fluid bag(s) with bag spikes and fully open clamps to allow the air in the reservoir chamber to escape into fluid bag(s) and allow fluid to fill the reservoir chamber. High amounts of particulates in the blood may clog the coarse blood filter in the reservoir chamber. Replace reservoir chamber or disposable if it is clogged. Power down and service the machine if error persists.
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