Models 597 and 598 Technical Service Manual Issue 7 May 2011

Technical Service Manual

74 Pages

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File Size: 4.15 MB

File Name: Ivac 598 & 597 Issue 7.pdf

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IVAC® Volumetric Pump Models 597 and 598 Technical Service Manual

IVAC® Volumetric Pump (Models 597 & 598)

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Contents Chapter 1 Introduction

Chapter 2 Routine Maintenance & Calibration

Chapter 3 Troubleshooting

Chapter 4 Circuit Descriptions

Chapter 5 Spare Parts Replacement Procedures

Appendix A Specifications

Appendix B Spare Parts Listing

Appendix C Fitting & Replacement Guidelines

Appendix D Service Contacts

Appendix E Disposal

Appendix F Document History

Chapter 1 Introduction In this chapter Introduction

General Precautions

Views of the IVAC® Volumetric Pump (Models 597 & 598)

Controls and Indicators

Flow Sensor

Introduction

Introduction The IVAC® Volumetric Pump - Models 597 & 598 automatically regulates the infusion rate of IV solutions using a linear peristaltic, volume displacement mechanism to regulate fluid flow at the prescribed rate. The pump can be operated with a Flow Sensor and is lightweight, compact and robust enough for most patient situations. The IVAC® 598 Volumetric Pump operates in primary infusion mode only. The IVAC® 597 Volumetric Pump has a primary and secondary infusion feature.

Product Familiarity Ensure that you are fully familiar with the pump by carefully studying the Directions for Use (DFU) prior to operation and prior to attempting any repairs or servicing. As part of continuous improvement, product enhancements and changes are introduced from time to time.

Purpose of this Manual This Technical Service Manual describes how to set up, test and maintain the following volumetric pumps: IVAC® 597 Volumetric Pump IVAC® 598 Volumetric Pump This manual is intended for use by personnel experienced in medical equipment testing and maintenance procedures.

Conventions Used in this Manual BOLD

Used for Display names, self-test codes, controls and indicators referenced in this manual, for example, VTBI indicator, test code 08, ON/OFF switch.

'Single quotes'

Used to indicate cross-references made to another section of this manual. For example, see Chapter 2, 'Configuration and Calibration'.

underline

Used to indicate a link to another section within this manual.

Italics

Used to refer to other documents or manuals. For example, refer to the relevant Directions for Use (DFU) for further information. Also used for emphasis, for example, ...if the gap still measures less than... Wherever this symbol is shown a Hints & Tips note is found. These notes provide useful advice or information that may help to perform the task more effectively.

Wherever this symbol is shown a Toolbox note is found. These notes highlight an aspect of test or maintenance that is important to know about. A typical example is drawing attention to a software upgrade that you should check has been installed.

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Introduction

General Precautions Prior to using this pump, carefully read the Operating Precautions described in the Directions for Use (DFU).

This pump contains static-sensitive components. Observe strict precautions for the protection of static sensitive components when attempting to repair and service the pump. An explosion hazard exists if the pump is used in the presence of flammable anaesthetics. Exercise care to locate the pump away from any such hazardous sources. Dangerous Voltage. An electrical shock hazard exists if the casing of the pump is opened or removed. Refer all servicing to qualified service personnel.

This pump is protected against the effects of high energy radio frequency emissions and is designed to be fail safe if extremely high levels of interference are encountered. Should false alarm conditions be encountered, either remove the source of the interference or regulate the infusion by another appropriate means. If the pump is dropped, subjected to excessive moisture, humidity or high temperature, or otherwise suspected to have been damaged, remove it from service for inspection by qualified service personnel.

When connected to an external power source, a three-wire (Live, Neutral, Earth) supply must be used. If the integrity of the external protective conductor in the installation or its arrangement is in doubt, the pump should be operated from the battery.

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Introduction

Views of the IVAC® Volumetric Pump (Models 597 & 598) Front View Main Display Display Indicators VTBI

VOL

KVO

RATE

ml/hr

CLEAR VOL

READ VOL

Keyboard (Model 598)

Keyboard (Model 597)

Door

VOL TO BE INF

RUN/ HOLD

CAM Follower Assembly

ON / OFF

VTBI

PRI

KVO

SEC

ml/hr

CLEAR VOL

READ VOL

CAM Follower Assembly Latch

AC power Indicator

RUN/ HOLD

ON / OFF

Vo l u m e t r i c P u m p

PRI / SEC

Primary/ Secondary Infusion Switch

Air-In-Line Sensor

Model 598

VOL TO BE INF

Rear View

Pole Clamp

PE Connector (not on XAX* model pumps)

Test Connector Cover AC Power Connector

Flow Sensor Connector (on FSO** pumps)

Fuse Holders * XAX refers to pumps with Serial numbers that include XAX, for example, 597XAX01AA. ** Flow Sensor Option. IVAC® Volumetric Pump (Models 597 & 598)

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Introduction

Controls and Indicators The English keyboard controls and indicators are described below. For information on keyboards in other languages, refer to the relevant DFU. See also Appendix B, 'Spare Parts Listing' for keyboard part numbers.

PRI / SEC

CLEAR VOLUME

Resets volume infused value to zero.

READ VOLUME

Displays volume infused value.

VOLUME TO BE INFUSED (VTBI)

Sets value of Volume To Be Infused.

RUN/HOLD

Starts and stops pump infusions. Silences/cancels alarms.

PRIMARY/ SECONDARY

(Model 597 only). Switches the pump between PRIMARY and SECONDARY infusion modes.

CHEVRONS

Double chevrons/single chevrons for faster/slower increase or decrease of infusion rate and volume values. Adjusts user selectable options (in self-test mode).

ON/OFF

Switches the pump on and off.

When any of the following are illuminated:

AC POWER INDICATOR - The pump is connected to an AC power supply and the battery is being charged. VTBI

The value displayed is the Volume To Be Infused.

KVO

The pump is infusing at the Keep Vein Open (KVO) rate of 5ml/h (or current rate, whichever is less).

VOL

The value displayed is the volume infused.

RATE

The value displayed is the current infusion rate.

PRI

(Model 597 only). The pump is operating in PRIMARY mode.

SEC

(Model 597 only). The pump is operating in SECONDARY mode.

(Millilitres) The value displayed is the VTBI or volume infused value.

ml/hr

(Millilitres / hour) The value displayed is the infusion rate. Infusion indicator. Three horizontal bars in the left-hand display position flash sequentially when the pump is infusing. Infusion indicator with Flow Sensor in use. Upper two horizontal bars convert to a square when a drop is detected by the flow sensor in the drip chamber.

Flashing Display

When the pump is operating on battery power, the Display flashes on/off.

Flow Sensor A flow sensor is used to detect an empty fluid container. It is connected to the drip chamber and when a drop is detected in the drip chamber the infusion indicator in the top left position of the Display converts to a square character (□). See above. Notes: 1) Use part number 192. 2) A flow sensor can only be used on Flow Sensor Option (FSO) pumps. IVAC® Volumetric Pump (Models 597 & 598)

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Chapter 2 Routine Maintenance & Calibration In this chapter Routine Maintenance

Self-Test Mode

Test Codes

Test Connector

Upgrading Software

Cam Follower Gap Check

Functionality Checks

Occlusion Verification Test

Rate Accuracy Verification Test (Code 13)

Physical Inspection and Clean

Calibration Procedures

Performance Verification Procedure

Routine Maintenance & Calibration

Routine Maintenance For routine maintenance, the following tests and Performance Verification Procedures (PVP) should be performed in addition to the tasks described in the section 'Physical Inspection and Clean'. Refer to the relevant DFU for the recommended routine maintenance period.

Self-Test Mode Self-test mode is used to access a number of test routines which are designed to test and verify many of the pump functions, defaults and calibrations without requiring internal inspection. Configuration settings are also enabled or disabled via self-test mode. Each test can be run in a single pass or in a continuous loop mode. See 'Test Execution' below for further details. Some tests require a test jumper (part number 134646), see 'Test Connector' for further details.

Test Pass/Fail The PRI & SEC (Model 597) or RATE & VOL (Model 598) indicator lights on the front panel of the pump are used to signal whether the pump passes or fails a test as follows: If the yellow PRI (Model 597) or VOL (Model 598) indicator light comes on, the pump has passed the test in progress. If the red SEC (Model 597) or RATE (Model 598) indicator light comes on, the pump has failed the test in progress. Most test procedures display data, such as numeric codes to indicate a test failure reason. See 'Test Procedure' table for further details.

Entering Self-Test Mode 

Press the CLEAR VOL and ON/OFF switches simultaneously until the display turns on. The pump then performs poweron self-tests. Initially, the current software revision level is displayed, followed by the battery voltage.



When the battery voltage is displayed, press the RUN/HOLD switch to display t=00 which means the pump is ready to start test 00. Note: To bypass the display of the software revision level and the battery voltage and advance directly to t=00, hold the CLEAR VOL switch until the power-on display test completes.



Use the chevron switches (I, J, L and K) to select the test code required.



To exit self-test mode, turn the pump off.

Test Execution Single Pass Mode

After selecting the test number (see 'Entering Self-Test Mode' above), press the RUN/HOLD switch to start the test for one pass. The display changes to show the test number for example, t=13. If there is data to display, it can be viewed after the test by pressing the READ VOL switch. Continuous Loop Mode

Certain tests can be run in a continuous loop mode (see tables below). After selecting the test number, press the RUN/ HOLD switch twice within one second to enter the test loop. The display will change as in the single pass mode then the test will be repeated continuously until the RUN/HOLD switch is pressed again. To display the test data while the test continues, press the READ VOL switch. To exit the loop, press the RUN/HOLD switch. Exiting Self-Test Mode

Self-mode can be exited at any time turning off the pump.

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Test Codes Summary Code

Test Name

Code

Test Name

Self-Test (01 to 08)

EEPROM Test

Speaker and Speaker Drive Circuit Test

Rate Calibration Number Read

Motor and Drive Circuitry Test

Total Pump Life "On" Time Read/Clear

Pressure Sensor Test

Total Battery "On" Time Read/Clear

Air-in-line Test

Error/Alarm Stack Read/Clear

Safety Switch and Driving Circuitry Test

Front Panel LED Test

Language Code Read/Set

External RAM Test

CRIS Configuration

Tach/Volume Flag Test

Air Bubble Length Read

Drop Discriminator Circuitry, Simulated Drop Test

FLO Alarm Threshold Read

Drop Detector LED Drive Current Test

Door Sensor Test

Auxiliary Front Panel Display Enable/Disable

Dried Spillage Alarm Parameters Read

Secondary Mode Setting On/Off

Rate Accuracy Test

See 'Rate Accuracy Verification Test' section for details of test.

Switch Test

Burn-In Test

Battery Voltage Test

Seven-Segment Display Test

Factory Use Only

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Pressure Calibration Read/Set See 'Pressure Calibration' section for details of test.

Door Calibration Read/Set See 'Door Calibration' section for details of test.

Production/Quick Configuration Test Factory Use Only. Test not available.

Pump Identification Number Read/Set

Hospital or Alternate Site Configuration Set

Secondary Mode Enable/Disable (Model 597 only)

Flow Sensor Optional/Mandatory

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Routine Maintenance & Calibration

Test Codes (continued) Test Procedures Code

Test

Action/Data Displayed

Loop

Self-Test (01 to 08)

The pump cycles through tests 01 through 08 sequentially, displaying the test number in progress, in the format t0.01 through t0.08. If a test fails, the red SEC (or RATE) indicator lights, the current test stops and the test number is displayed. Press the RUN/HOLD switch once to continue to the next test (or twice to exit the test).

Loop only

Speaker and Speaker Drive Circuit Test

Test fail codes: 1=speaker senses as not turning on 2=speaker senses as not turning off

Yes

Motor and Drive Circuitry Test

Test fail codes: 1=motor would not turn on (or shorted coil) 2=motor would not turn off

Yes

Pressure Sensor Test

Data displayed: D/A trim level is displayed at end of test. Test fail codes: 1 = amplifier output stuck high 2 = amplifier output stuck low 3 = amplifier cannot attain 4.6 volts 4 = amplifier cannot go below 0.2 volts 5 = bridge will not trim (D/A bits bad) 6 = trim/amplifier gain > 4.4 7 = trim/amplifier gain < 3.6

Yes

Air-in-line Test

To run the test:  Load an air or fluid-filled IV infusion set.  Press the READ VOL switch to display the output code. Test fail codes: 0 = fluid detected in IV infusion set 1 = air detected in IV infusion set 2 = output stuck high 3 = test line could not force air indication

Yes

Safety Switch and Driving Circuitry Test

Test fail codes: 1 = safety logic line would not go low 2 = safety logic line would not turn off 3 = safety switch would not turn on 4 = safety switch would not turn off 5 = both safety switch and motor drive stuck on

Yes

Front Panel LED Test

All front panel LEDs are lit until the RUN/HOLD switch is pressed. Inspect LEDs. Note that the AC charge LED only lights on AC power.

Yes

External RAM Test

Test fail: display shows the first address failed, hexadecimal. Note that the highest address is tested first.

Yes

Data displayed: tt.vv where tt equals the last two digits of the number of tach flags, and vv equals the number of volume flags. Normal display is 20.28, and the tt may vary by +/- one count. This test is designed to assist in aligning the encoder disk optics and is intended to Tach/Volume Flag Test be used in the loop mode. When running test, if there is excessive noise, loosen retaining screws as required and adjust the cam follower assembly as far as possible towards the bottom of the pump. Tighten retaining screws then turn the pump off.

Yes

Note: The flow sensor must be connected to the pump. Data displayed: output voltage in A/D counts. Ideal value is 205 counts = 4.00 volts Test fail codes: 1 = no drop detected 2 = value too high, max = 4.257 V, 218 counts 3 = value too low, min = 3.750 V 192 counts 4 = simulated drop detected as multiple drops 5 = simulated drop detected as long or small drop

Yes

Drop Discriminator Circuitry, Simulated Drop Test

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Test Codes (continued) Test Procedures (continued) Code

Test

Action/Data Displayed

Loop

Drop Detector LED Drive Current Test

Note: The flow sensor must be connected to the pump. Data displayed: LED current, in mA Test fails if the current exceeds 126 mA or falls below 2 mA.

Yes

Door Sensor Test

OPEN = door sensed as open CLOS = door sensed as closed Press READ VOL switch to display the A/D value. See 'Door Calibration' for instructions on how to read and set door calibration value.

Yes

Dried Spillage Alarm See 'Read Parameter/Values' table on the next page. Parameters Read

Rate Accuracy Test

See 'Rate Accuracy Verification Test' section for details of test.

Press each switch and check the corresponding code is displayed:

Switch Test

D 4

E 5

C 6 B 7 F 8 (hidden switch on Model 598)

Note: the ON/OFF switch does not have a code.

To exit this test, press both the RUN/HOLD switch and PRI/SEC (hidden switch on Model 598) switch simultaneously, or turn the pump off.

Burn-In Test

All front panel LEDs light continuously (except for run indicator which behaves as if in normal mode). Pump runs at 125 ml/h, all FLO, OCCL, and Air alarms are ignored. Data displayed: All detected errors. Door alarm is also active. Note: It is not possible to run this test if any errors have been detected since entering self-test mode.

Battery Voltage Test

Data displayed: battery voltage, in volts. Test passes with value above 5.7 volts .

Yes

Seven-Segment Display Test

Test fail codes (LED segment assembly number): 0 = far left, 1 = 2nd from left, 3 = 2nd from right, 4 = far right

Factory Use Only

EEPROM Test

Data displayed: number of first registration to fail.

Read Parameters/Values Code

Test

Action/Data Displayed

Loop

Dried Spillage Alarm Parameters Read

Read parameters by pressing the RUN/HOLD switch four times: 1st press displays the dried spillage scan start volume flag number. 2nd press displays the scan stop volume flag number. 3rd press displays the alarm threshold value. 4th press exits the test.

See 'Test Procedures' table on the previous page.

Read the factory-set calibration number. If the Cam Follower Assembly is replaced and the number is not "0033" change as follows:  Use the chevron switches until the display reads "0033"  Press the RUN/HOLD switch and verify "Cal Done" is displayed

13 through 19

Rate Calibration Number Read

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Test Codes (continued) Read Parameters/Values (continued) Code

Test

Action/Data Displayed

Loop

Total Pump Life "On" Time Read/ Clear

Read the total pump "on" time, displayed in 10-hour increments. For example, 0037 = 370 hours. To clear the total pump "on" time:  Install a test jumper. See 'Test Connector' for instructions.  Press the CLEAR VOL and PRI/SEC (hidden switch on Model 598) switches until the display shows 0000.

Total Battery "On" Time Read/Clear

Read the total total time the pump has been running on battery power, displayed in 10-hour increments. For example. 0048 = 480 hours. To clear the total battery "on" time:  Install a test jumper. See 'Test Connector' for instructions.  Press the CLEAR VOL and PRI/SEC (hidden switch on Model 598) switches until the display shows 0000.

Error/Alarm Stack Read and Clear

Read the last 16 error or alarm codes. The most recent alarm or error is always displayed first. Pressing the K switch displays the previous error/alarm and cycles through the error or alarm codes. ---denotes the end of the alarm stack. Notes: 1) All error and alarm messages will be displayed in English regardless of the Language Code setting (Test 25). 2) The stack of alarms/error codes will be lost if the battery is removed and the information will be unreliable until filled with new alarm messages or cleared. To clear the alarm stack:  Install a test jumper. See 'Test Connector' for instructions.  Press the CLEAR VOL and PRI/SEC (hidden switch on Model 598) switches until the display reads ----.

Pressure Calibration See 'Pressure Calibration' section for details of test. Read/Set

Language Code Read/Set

See 'Configuration Settings' table on the next page.

CRIS Configuration

See 'Configuration Settings' table on the next page.

Air Bubble Length Read

Read the air-in-line alarm threshold value, displayed in microlitres. This value is the nominal air bubble alarm threshold in microlitres used for air-in-line detection and is originally set at the factory.

Read the FLO alarm threshold value in psi. This value is the upstream occlusion alarm threshold pressure in psi and is originally set at the factory.

FLO Alarm Threshold Read

IVAC® Volumetric Pump (Models 597 & 598)

When upgrading software from V9.xx to V10.05, the flow alarm threshold setting must be changed from 008 to 006. To do this:  Install a test jumper. See 'Test Connector' for instructions.  Change the display to 006 by pressing the chevrons switches.  Press the RUN/HOLD switch. The pump should beep then display CAL DONE followed by t=28.  Turn the pump off/on.

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Test Codes (continued) Configuration Settings Code

Setting

Action

Loop

Language Code Read/Set

Read and/or set how error and alarm messages are displayed. E = English text, for example door, Err6. C = Codes or International, for example, P1, E1. For non-English language users. To change the setting, press the PRI/SEC (hidden switch on Model 598) switch and any chevron switch simultaneously for two seconds.

CRIS Configuration

Setting not in use. CRIS=CRIS enabled, OFF=CRIS disabled. Ensure the setting is OFF.

Air Bubble Length Read

See 'Read Parameter/Values' table on the previous page.

FLO Alarm Threshold Read

See 'Read Parameter/Values' table on the previous page.

Door Calibration Read/ Set

See 'Door Calibration' section for details of test.

Auxiliary Front Panel Display Enable/Disable

Enable or disable Auxiliary Front Panel Display feature, used to display calibration data. on.05 = feature enabled, where 05 equals the number of times remaining that the pump can be powered on/off with Auxiliary Front Panel Display enabled (five maximum). OFF = feature disabled. To enable the feature:  Press the PRI/SEC (hidden switch on Model 598) switch and any chevron switch simultaneously for two seconds. The display will read on.05.  Turn the pump off then on. The pump is now in normal operating mode with this feature enabled. To disable the feature:  Enter test 30 and press the CLEAR VOL switch. The display will show OFF. Alternatively, turn the pump off/on five times. Warning: Ensure that this feature is OFF before returning the pump into service.

Secondary Mode Setting On/Off

Enable or disable the Secondary Mode setting (code 35). SC.On = Secondary mode setting enabled (Model 597 only) SC.OF = Secondary mode setting disabled (Model 598) Defaults to SC.On when the EPROM is first installed. If an EPROM is installed on a Model 598, the setting must be changed to SC.OF (secondary off ). To change the setting:  Install a test jumper. See 'Test Connector' for instructions.  Load a set segment into the cam follower assembly.  Press the PRI/SEC (hidden switch on Model 598) switch and any chevron switch simultaneously for two seconds.

Pump Identification Number Read/Set

Read and/or set the pump identification number (ID). To set a new ID, use the chevron switches to select a desired value, then hold the PRI/SEC switch and press the RUN/HOLD switch to exit the test. Press RUN/ HOLD again to display and verify the new pump ID.

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Test Codes (continued) Configuration Settings (continued) Code

Setting

Hospital or Alternate Site Configuration Set 34

Note: This setting is unavailable on pumps with software version 10.03 or below.

Secondary Mode Enable/Disable (Model 597 only) 35

Note: This setting is unavailable on pumps with software version 10.03 or below.

Flow Sensor Optional/Mandatory (FSO pumps only*)

IVAC® Volumetric Pump (Models 597 & 598)

Action

Loop

HOSP = Hospital Configuration ASC = Alternate Site Configuration See Note below. To change the setting:  Press the PRI/SEC switch and any chevron switch for 2 seconds to toggle the selection. The new configuration choice is displayed.  Turn off the pump to exit the test and set the new configuration in memory. Note: when set to ASC, note the following: 1) These test codes are not available, and cannot be changed: 25-Language Code set to E=English 26-CRIS setting is OFF=Disabled 30-Auxiliary Front Panel Display feature is OFF=Disabled 31-Secondary Mode Setting is SC.OF = Disabled 2) While the pump is running, the AIL alarm value is 500 microlitres. See test 27. 3) Any previous HOSP configuration values are stored while set to ASC. HOSP values are restored when the HOSP setting is selected again.

Read and/or enable or disable Secondary Mode on the Model 597 pump. SC.ON = Secondary mode enabled SC.OF = Secondary mode disabled When software is first installed, this setting may not be enabled when pump is powered on. Ensure the setting is enabled. To change the setting:  Load a set segment into the cam follower assembly.  Enter self-test mode and select test code 35.  Press the RUN/HOLD switch to enter the test. Press the PRI/SEC switch and any chevron switch simultaneously to toggle the selection and select the mode.  Press the RUN/HOLD switch, then turn the pump off. Note: This setting must be enabled via test code 31.

Set Flow Sensor usage to optional or mandatory. FS.OP = Use of a flow sensor is optional when running an infusion FS.On = A flow sensor is mandatory (must be fitted) in order to run an infusion To change the setting:  Install a test jumper. See 'Test Connector' for instructions.  Press the PRI/SEC switch (the hidden switch on the Model 598) and any chevron switch simultaneously for two seconds.  Release the switches when the required setting is displayed.

* On non-FSO pumps, when replacing the Logic PCB (139046100), ensure this setting is changed to FS.OP (flow sensor optional).

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Test Connector In order to perform certain tests and to change any pump settings, a test jumper or a low value resistor of 1K5Ω or less, connecting test connector pin 9 to pin 23 must be installed. Procedure: 1. With the pump off, remove the test connector cover from the back of the rear case. 2. Using a test jumper (part number 134646), a wire, or a low-value resistor (1k5Ω or less), connect pin 9 to pin 23 on the external test connector. See Figure 2-1 below. Take care not to short any pins adjacent to pin 9 or 23 as this may result in a blown fuse. Pin 1

Pin 2

Pin 9

Pin 23

Figure 2-1 External Test Connector (J3) 3. Place the pump in self-test mode then select and carry out the test(s) as required. 4. When the test is complete, remove the test jumper from the test connector. 5. Refit the test connector cover.

Upgrading Software  Upgrade of Model 597/598 (FSO) volumetric pump software to V1.10 or greater is recommended

when serviced  Upgrade of Model 597/598 (non-FSO) volumetric pump software to V10.03 or greater is

recommended when serviced. See 'Notes (non-FSO pumps)' below. Perform upgrades by acquiring the software upgrade kits specified in spare parts listings.

Equipment required: Software upgrade kit (includes EPROM fitting and removal instructions) Software Upgrade Kits Available Pump Model

Part Number

Software Version

597/598 (FSO)

143053

1.10

597/598 (non-FSO)

136814

10.05

Notes (non-FSO pumps): 1) The latest non-FSO software available is V10.05. 2) When upgrading software from V9.xx to V10.05, the flow alarm threshold setting must be changed from 008 to 006. See test 28. 3) V10.05 software includes test 35 Seconday Mode Enable/Disable (Model 597). 4) When replacing the Logic PCB (part number 139046-100) on a non-FSO pump, the latest software is fitted on the PCB. Ensure that test 36 is set to FS.OP (flow sensor optional).

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Cam Follower Gap Check Equipment required: 

0.160" pin gauge (part number 305601), 0.160" block gauge or calibrated calipers



Indelible marker

Procedure: 1. Open the orange cam follower assembly latch. 2. Position the topmost follower closer to the pressure pad than the other followers. To do this: Enter self-test mode and select test 08 (alternatively, select test 02). See 'Entering Self-Test Mode' for instructions. Press the RUN/HOLD switch twice within one second to enter the test in loop mode, then press RUN/HOLD switch again to exit the loop. Repeat this step until the topmost follower is positioned closest to the pressure pad. 3. Using the pin gauge, check the gap between the pressure pad and the end of the followers (while it is still positioned closest to the pad). See Figure 2-2 below. 4. If the gap measures less than 0.160", check that the Cam Housing Assembly and the Cam Follower Assembly are correctly seated. 0.160" minimum 5. If the gap still measures less than 0.160": Pressure Pad  replace the Cam Follower Assembly Top Follower 

OR, replace the Cam Housing Assembly



OR, replace the Front Case

Orange Cam Follower Assembly Latch Figure 2-2 Follower/Pressure Pad Gap IMPORTANT: Failure to maintain the appropriate gap width may result in a set being incorrectly loaded into the pump. If this situation arises, there is a risk that an undetected over-infusion may occur. Refer to MHRA Hazard Notice 2002 (09) for more information.

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Functionality Checks Alarms Alarm

Action

Door (P1)

Open the door at least ¼ inch. Verify that the pump stops running, an alarm sounds, and the display shows door (P1). Close the door. Press the RUN/HOLD switch momentarily to verify that the alarm stops and the display alternates between the set rate and hold (P3)

FLO (P2)

Set rate to 200 ml/h. Press the RUN/HOLD switch. Verify that the pump starts. Close the set regulating clamp and verify that a FLO (P2) alarm occurs within approximately 15 seconds. Open the set regulating clamp. Note: If you are not using a flow sensor and the pump fails to alarm, perform the 'Pressure Calibration' procedure.

Hold (P3)

Press the RUN/HOLD switch. Verify that the pump starts. Press the RUN/HOLD switch to put pump on hold. Verify audible bleep and hold (P3) alarm displayed after two minutes.

Air (P5)

Load an air-filled IV infusion set (no fluid) into the pump. Press the ON/OFF switch to turn the pump on. Set the rate and the VTBI. Press the RUN/HOLD switch to start the pump. Verify that the pump alarms and displays Air (P5).

Reload ---- Air (P5)

With pump displaying Air (P5)-see above-press RUN/HOLD to put pump on hold, then press the RUN/HOLD switch again and verify that the pump alarms and displays Reload ---- Air (P5) alternating with Air (P5).

Reload (P6)

Start pump without an IV infusion set loaded. Verify that the pump alarms and displays Reload (P6).

OCCL (P7)

Set rate to 200 ml/h. Press the RUN/HOLD switch. Verify that the pump starts. Occlude the set at approximately 2.5 cm from the exit of the pump. Verify an OCCL (P7) alarm occurs within approximately 15 seconds. If the pump fails to alarm, perform the 'Pressure Calibration' procedure. Important: Run the 'Occlusion Verification Test' to verify that the pump occludes between 5.5 and 11 psi (nominal 6 to 8 psi). See below for instructions.

KVO

Set rate to 200 ml/h. Press RUN/HOLD or VTBI. Set VTBI to 0001 ml by pressing the chevron switches. Press RUN/HOLD switch to start pump. Verify that a KVO alarm occurs within approximately 18 seconds.

Verify Volume Infused and Rate Retention

Battery Power Check

1. Press the READ VOL switch and note the infused volume.

1. Remove power cord from the AC power socket.

2. Press the ON/OFF switch to turn pump off. Wait 15 seconds, then press the ON/OFF switch again to turn the pump on.

2. Press the RUN/HOLD switch and verify an audible bleep.

3. Verify the infused volume and the rate displayed are the same as before.

3. Verify that the pump operates and the display flashes on and off. Verify that the moving horizontal bars in the left-hand display position are sequencing as before. 4. Plug the power cord back in to AC power socket.

Flow Sensor Check See 'Physical Inspection and Clean' for instructions.

IVAC® Volumetric Pump (Models 597 & 598)

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Routine Maintenance & Calibration

Occlusion Verification Test Equipment Set Up: 

Set up equipment as per 'Pressure Calibration Equipment Set Up', with the pressure gauge connected and three-way stopcock closed.

Procedure: 1. Set rate to 200 ml/h. 2. Press the RUN/HOLD switch. Verify that the pump starts. 3. Verify that an OCCL (P7) alarm between 5.5 and 11 psi (nominal 6 to 8 psi). If the pump fails to alarm, perform the 'Pressure Calibration' procedure.

Rate Accuracy Verification Test (Code 13) Equipment Set Up: 

Set up the pump as shown in Figure 2-3 below.



Close the set roller clamp.



Plug the pump into AC mains.

Water Source Burette

Ensure flow sensor is removed.

30 ± 2 inches (76 ± 5 cm) Burette Clamp

Equipment Stand

Three-way Stopcock

Tubing

Table or Bench

IV Tubing Figure 2-3 Rate Accuracy Verification Test Equipment Set Up

Middle of Follower Assembly/Door Latch

Used Fluid Receptacle

Procedure: 1. Using a Class A burette, adjust the fluid level so that the meniscus is level with the zero mark. 2. Enter self-test mode and select test 13. See 'Entering Self-Test Mode' for instructions. 3. Press the RUN/HOLD switch; the default rate of 300 ml/h will be displayed. 4. Press the RUN/HOLD switch; the default test time of 300 seconds (5 minutes) will be displayed. 5. Press the RUN/HOLD switch to start the test. The display will show the test time remaining in seconds. A click will sound as each second is decremented. 6. When the display reaches zero seconds, the display shows STOP to indicate the end of the test. The PRI indicator will also be lit. 7. Press the RUN/HOLD switch to display the volume infused and verify that the infused volume in the burette is 25 ±1.25 ml. Due to variations between IV infusion sets, the reading may not fall within the stated parameters. If this occurs, retest using another IV infusion set. If the variance still exceeds ±5% after retesting with another IV infusion set, replace the Cam Follower Assembly. Note: During the test run, operational alarms can be cleared by pressing the RUN/HOLD switch. The test must be rerun. Error alarms are cleared by turning the pump off and back on. The test must be rerun. IVAC® Volumetric Pump (Models 597 & 598)

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IVAC

IVAC Volumetric Pumps

Models 597 and 598 Technical Service Manual Issue 7 May 2011