Baxter Flo-Gard GSP Syringe Infusion Pump Service Manual

Service Manual

Flo-Gard GSP

S Y R I N G E I N F U S I O N P U M P

BS036010EN-P06

Prior to servicing this pump, read this manual and the pump’s

Operator’s Manual carefully to fully understand the pump’s functionality and to ensure safe and proper servicing.

CONTENTS

1. INTRODUCTION………………………………………….…..4

1.1 General Information……………………………………4

1.2 General Precaution……………………………………..4

1.3 Service Contacts………………………………………..5

2. TECHNICAL DESCRIPTION………………………………..8

2.1 General…………………………………………………8

2.2 Electronic board……………………………………….10

2.3 Drive Unit board …………………………………...13

2.4 Power Supply Unit…………………………………….14

2.5 IRDA/RS232/Nurse Call Interface Specification……...14

2.6 Bootstrap Loader Unit……….………………………...15

3. USER CONFIGURATION MENU…………………………...16

4. SERVICE MENU………………………………………………16

4.1 Maintenance Menu……………………………………..16

4.2 Loading Program…………...…………………………..16

4.3 Calibration……………………………………………...17

4.4 Testing………………………………………………….20

5. RECOMMENDED ROUTINE MAINTENANCE

AND TESTING…………………………………………………22

5.1 AC/Battery Operation Check…………………………...22

5.2 General Cleaning and Inspection for Damage…………22

5.3 Battery Test……………………………………………..23

5.4 Infusion Rate Check……………………………………23

5.5 Occlusion Pressure Level Check……………………….23

6. TROUBLE-SHOOTING……………………………………….24

6.1 Safety WARNINGS…………………………………….24

6.2 Pump has been dropped or damage……………………..24

6.3 Pump has been exposed to fluids………………………..24

6.4 Trouble-shooting by fault symptom……………………..25

6.5 Trouble-shooting by failures codes……………………...28

Flo-gard GSP Service Manual 2

7. REPAIR………………………………………………………….33

7.1 Access to the Pump……………………………………...33

7.2 Front Case and Sub-assemblies………………………….33

7.3 Rear Case and Sub-assemblies…………………………..49

7.4 Torque guide…………………………………………….40

8. ELECTRICAL SCHEMATIC DIAGRAMS, COMPONENT

LOCATION DIAGRAMS……………………………………...43

8.1. Electrical Block Diagram of the Pump…………………..43

8.2. Electrical Schematic Diagram of the Pump……………...44

8.3. Electronic Board Schematic Diagram……………………47

8.4. Electronic Board Component Location Diagram………...51

8.5. Drive Unit Board Schematic Diagram …………………..52

8.6. Drive Unit Board Component Location Diagram …….53

8.7. Power Supply Unit Schematic Diagram………………….54

8.8. Power Supply Unit Component Location Diagram………55

8.9. Battery Monitoring Unit Component Location Diagram…56

9. MECHANICAL ASSEMBLY DRAWINGS

AND PART LIST…………………………………..……………..57

9.1. Part List……………………………………………………57

9.2. Front Case Assembly………………………………………59

9.3. Rear Case Assembly……………………………………….71

9.4. Final Assembly…………………………………………….75

10. SPARE PARTS LISTING………………………………………...82

10.1 Spare Accessories…………………………………………77

10.2 Spare Labels/Publications…………………………………77

10.3 Spare Electrical Components……………………………...78

10.4 Spare Mechanical Components……………………………78


1. INTRODUCTION

1.1.GENERAL INFORMATION

The Flo-Gard GSP syringe pump is designed to accurately control the delivery of solution to the patient by means of a disposable syringe.

The Flo-Gard GSP syringe pump is compatible with a wide range of standard, single-use, disposable Luer-lock syringes, ranging from 10ml to 100ml in size.

This SERVICE MANUAL describes the theory of operation, how to check, troubleshoot and repair Flo-Gard GSP syringe infusion pump.

Ensure that you are fully familiar with this equipment by carefully studying the Operator’s

Manual and this Service Manual prior to attempting any repairs or servicing.

1.2. GENERAL PRECAUTION

Please read the general Operating Precautions described in the Operating

Instructions carefully prior to using this pump.

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 materials. Exercise care to locate the pump away from any such hazardous sources.

An electrical shock hazard exists if the pump casing 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 fail-safe if extremely high levels of interference are encountered. Should false alarm condition 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 a qualified service engineer.


1.3. SERVICE CONTACTS

Baxter Technical Service Centre locations and full addresses:

Argentina

Baxter Immuno SA

Av. Olivos 4140

Tortuguitas-C.P. 1667-

ARGENTINA

Tel: 54-11-4463-3333

Austria

Baxter-Immuno Vertriebs GmbH

IZ-Sued Strasse 7 Obj. 58D/Tops2

2355 Wiener Neudorf

AUSTRIA

Tel: +43 (0)1 711 20 138

Fax: +43 (0)1 711 20 157

Australia

Baxter Healthcare Pty. Ltd.

Baxter Drive, Old Toongabbie

New South Wales 2146

AUSTRALIA

Tel: 61-2-8845-1560

Belgium

N.V. Baxter S.A.

Boulevard R. Branquart 80

B-7860 Lessines

BELGIUM

Tel: +32 (0)68 27 30 54

Brazil

Baxter Hospitalar Ltda

Avenida Santa Catarina 2660

04378-200

Sao Paulo, SP

BRAZIL

Tel: 55-11-541-8922 x5250

Fax: 55-11-5563-7933

Chile

Baxter de Chile, Ltda.

Avenida Mexico #715

Recoleta, Santiago

CHILE

Tel: 56-2 -6213707

Fax: 56-2 -6213708

Colombia

Canada

Baxter Instrument Services

5055 - Unit 5, Satellite Drive

Mississauga, Ontario

L4W 5K7

CANADA

Tel: 1-877-331-9336

Fax 905-281-6730

China

Baxter Healthcare Ltd.

Rm 503 China Garments Mansion

99 Jian Guo Road

Beijing 100020,

CHINA

Tel: 8610-6581-1206

Denmark

Laboratorios Baxter SA

Carrera 99

#46a22

Santafe’de Bogota DC

COLOMBIA

Tel: 57-1-4211820

Fax: 57-1-4210055 x234 or x233

Ecuador

Baxter Ecuador SA

Av. Naciones Unidas #1084

Esquina Amazonas

Edif. Previsora Torre B, Ofic 408

Quito

ECUADOR

Baxter A/S

Gydenvang 43

DK-3450

Allerod

DENMARK

Tel: +45(0)48 166 435

Fax: +45(0)48 166 464

Finland

Baxter OY

Pakkalankuja 6

PO Box 46

FIN-015111 Vantaa

Finland

Tel: +35 (0)89 862-1111

Fax: +35 (0)89 862-1211


France

Baxter S.A.

Avenue Louis Pasteur

Boite Postale 56

78311 Maurepas Cedex

FRANCE

Tel: +33(0)1 34 61 5566

Fax: +33(0)1 34 61 5537

Greece

Baxter (Hellas) EPE

Ethnarhou Makariou 34 & Athinodorou

GR-156341 Illioupolis

Athens

GREECE

Tel: +30 (0)1 9959 818

Fax: +30 (0)1 9959 820

Italy

Baxter S.p.a.

Via Lorenzini, 4

20139 Milano

ITALY

Tel: 39/2 89 52 71

Netherlands

Baxter BV

Koblatweg 49

3542 CE Utrecht

THE NETHERLANDS

Tel: +31(0)30 2488 771

Fax: +31(0)30 2488 795

Panama

Baxter de Panama

Calle 55 Obarrio

Edificio Plaza Obarrio

Primer Piso Suite #105

Panama

REPUBLIC OF PANAMA

Tel: 507-264-6010 or 6013

Fax: 507-264-6027

Portugal

Baxter Medico Farmaceutica Lda

Urbanizacao Industrial Cabrafiga

Estrada Nacional 249/4 Lote 3

Cabrafiga

2735 Rio De Mouro

PORTUGAL

Tel: +351 (0)1 915 8180

Fax: +351 (0)1 915 8209

Germany

Baxter Deutschland GmbH

Am Wolfsmantel 46

91058 Erlangen

GERMANY

Tel: 091 31 61 79 122

Ireland

Baxter Healthcare Limited

Unit 7, Deansgrange Industrial Estate

Blackrock Co.,Dublin

IRELAND

Tel: +353 (0)1 206 5568

Fax: +353 (0)1 206 5555

Northern Ireland

Tel: 01232 777 800

Mexico

Baxter-SA de CV

Av. Javier Rojo Gomez #709

Col. Guadelupe del Moral CP

09000 MEXICO D.F.

Tel: (52) -56-94-05-20

Fax: (52) -56-94-04-53

Norway

Baxter A/S,

Box 70 Grefsen

0490 Oslo

Gjerdrumsvei 11

NORWAY

Tel: +47(0)2 258 4800

Fax: +47(0)2 258 4801

Peru

Laboratorios Baxter del Peru SA

Las Camelias 780. Segundo piso

Lima 27

PERU

Tel: (51) 1-2217170

Fax: (51) 1-4217275

Puerto Rico

Baxter Sales & Distribution

State Road 24

Rexco Industrial Park

Buchanan

Guaynabo

PUERTO RICO 00968

Tel: 787-792-5757


Singapore

Baxter Healthcare Asia Pte Ltd

Singapore Technical Services

159 Sin Ming Road

#02-01/02/03 Amtech Building

SINGAPORE 575625

Tel: 65-4553911

Fax: 65-4553963

Spain

Baxter S.A.

Poligno Industrial Vara de Quart

Calle Dels Gremis 7

46014 Valencia

SPAIN

Tel: +34(0)96 386 0800

Fax: +34(0)96 3702 697

Switzerland

Baxter AG

Muellerenstrasse 3

CH-8604 Volketswil

SWITZERLAND

Tel: 0041 19085050

South Korea

Baxter International

4, 5/F Jinsung Bldg 996-17

Daechi-dong

Kangnam-ku, Seoul

KOREA

Tel: 82-2-5607-184

Fax: 82-2-538-0679

Sweden

Baxter Medical AB

PO Box 63

SE- 164 94 KISTA

Torshamnsgatan 35

Sverige

Tel: 46 (0)8 632 6400

UK

Baxter Healthcare Limited

UK Nat’l Distribution Centre

Salthouse Road

Brackmills Industrial Estate

Northampton

ENGLAND

NN4 0UF

Tel: 44(0) 1604 704555

Fax: 44(0) 1604 704590

Venezuela

Urb. Industrial Castillito

Centro Comercial Valencia II

Valencia. Edo. Carabobo,

VENEZUELA

Tel: 58-2-204-42-68


2. TECHNICAL DESCRIPTION

2.1. GENERAL

The Block Diagram of the pump is given in the section 8.1. The Electrical Schematic Diagram is given in the section 8.2. The pump is composed of the following elements:

- Keypads

- Stepper motor

- Stepper motor encoder

- Syringe Force sensor

- Syringe plunger grippers and pusher lever sensor

- Drive engagement sensor

- Syringe size sensor

- Pusher position sensor

- Syringe barrel sensor

- Battery unit

- Electronic board

- Drive Unit board

- Power Supply Unit

- IRDA/RS232/Nurse Call Interface

- Hard bootstrap loader

Below follows a description of these elements, refer the appropriate diagram for full understanding of the functionality:

2.1.1. Keypads

Keypad K1 comprises of a 4 x 3 key matrix connected to the Electronic board at connector JP1.

The ON/OFF key and BATTERY & MAINS LED’s are also located on the K1 keypad connect to the Electronic board via JP12.

Keypad K2 comprises of a 4 x 2 key matrix. It is connected to the Electronic board via connector

JP4.

2.1.2. Stepper motor

A two-phase unipolar stepper motor with 7.5º step-angle is used in the pump drive. The motor is connected to the Drive Unit board via connector P5 and is driven in micro stepping mode. There are 48 steps to complete one full revolution of the motor shaft. The motor is connected to the lead screw by means of timing belt. The belt ratio is 5:1; as a result 240 motor steps move the drive carriage by 1 mm.

2.1.3. Stepper motor encoder

Motor speed and direction is monitored by means of the encoder. It is composed of two photointerrupters D1, D2 and a 9 slot-encoding disk mounted on the stepper motor shaft. Quadrature signals (Tax1, Tax2) are transferred to the Drive Unit board via P6 connector.


2.1.4. Syringe force sensor

As a syringe force sensor is used a strain gauge TZ1 mounted on a steel plate within the plunger retaining mechanism. When this plate is deflected by applied force on the plunger mechanism, a differential voltage is generated at gauge output. This signal, which magnitude is proportional to the applied force, is transferred to the Drive Unit board.

2.1.5. Syringe retainer (plunger grippers and pusher lever) sensors

The plunger grippers and pusher lever sensors are composed of photo interrupters D4, D5, D6.

The LED’s of the photo interrupters are supplied with pulse-modulated current through pin 8 of

JP1 connector of the Drive Unit board.

When the syringe is loaded, the shutters controlling the photo interrupters D4 and D6 are opened.

When the pusher lever is lifted up, the shutter controlling the photo interrupter D5 is opened.

Output signals of these sensors are summed to form syringe retainer output voltage (at pin 7 of

JP1 – Drive Unit board) in accordance with the Table 1.

Plunger grippers sensors (D4, D6)

Off

On

Off

On

Pusher lever sensor (D5)

Off

Off

On

On

Syr. retainer output voltage

<0.3V

≥

0.3V;

≤

0.6V

>0.6V;

≤

0.95V

>0.95V;

≤

1.4V

Table 1

2.1.6. Drive engagement sensor

The drive engagement sensor is comprised of photo interrupter D3. Its LED is supplied with pulse-modulated current. When the half-nuts of drive are closed (engaged), the shutter controlling the photo interrupter D3 is open and electrical pulses are generated at pin 6 of the

Drive Unit’s board JP1 connector.

2.1.7. Syringe size sensor

The syringe size sensing is achieved using the linear potentiometer R1. The signal from the potentiometer slider is applied to the Electronic board via pin 2 of JP8 connector.

2.1.8. Pusher position sensor

An optical absolute encoder of pusher position is comprised of a steel encoder ruler and photo interrupter D7. Ruler is attached to the drive walls, and the photo interrupter is mounted on the drive carriage and moves along ruler during infusion so that edge of the ruler is inside the gap of photo interrupter. The edge of the ruler is punched with the slots distributed with various intervals in certain pattern. Each slot passing the gap generates electrical pulse when the photo interrupter is moved along the ruler. Microcontroller permanently monitors width of intervals in


sequence of pulses and determines pusher position basing on combination of passed intervals.

Obviously, certain number of slots should be passed after start of infusion before the pusher position (and, correspondingly, remaining time and volume) may be determined. Maximum delay is when the pusher is at the rightmost position (up to 9 mm of pusher travel may be required).

2.1.9. Syringe barrel sensor

The syringe barrel sensor comprises switch S1. When the syringe is loaded, the switch S1 contacts are closed and a logic “0” is generated at pin 1 of the Electronic board’s JP5 connector.

2.1.10. Battery unit

The battery unit comprises the Ni-MH (7,2V x 2.5Ah) battery GB1 together with the battery monitoring circuit. The integrated circuit U1 monitors battery voltage, temperature and charge/discharge current. This data is used to calculate battery charge state and remaining working time when pump runs on battery. Data is transferred to the microcontroller via 1-Wire interface (pin 4 of the JP7 connector). R2 is a current sense resistor; R3 and C1 constitute a low pass filter for the current monitoring circuit. Thermistor R1 terminates battery charging if battery temperature exceeds the permissible value. The resettable fuse F1 protects against a short circuit of the battery.

2.2. ELECTRONIC BOARD

The electrical diagram of the Electronic board is given in section 8.3. It comprises following main parts:

- Microcontroller circuit

- Display unit

- Display contrast regulator

- RS232 interface

- Watch-dog circuit

- Piezotransducer drive

- Reference voltage source

- LED indicators

2.2.1. Microcontroller circuit

The 16 bit microcontroller U12 (SAB-C167CR-LM) controls and monitors major syringe pump functions. Clock pulses are generated by the quartz oscillator Q1 at a frequency of 3.686400

MHz and multiplied x 5. Supervisor integrated circuit U9 generates a reset signal for the microcontroller when the supply voltage changes from 0V to 5V.

Software instructions are stored in 1-Megabyte FLASH memory U10. Device constant parameters are stored in 8-kilobyte SPI EEPROM, U14. Temporary variables are stored in 128 kilobyte SRAM U8 with real time clock and lithium battery.


The microcontroller functions include:

- Scanning the keypad via the port P8 and the buffers of the U2 and U4 ICs. The keypad status information is read via other buffers of the U2 and U4 ICs to the inputs P5.9 (pin 36), P5.10 (pin 39) and P5.11 (pin P40).

- Setting the output P2.10 (pin 59) to ‘0’on switching the pump on. This signal maintains power supply active. In order to switch power off, the ON/OFF key shall be kept depressed, thereby setting the P5.7 input (pin 34) to ‘1’. After 3 sec delay micrcontroller sets the P2.10 output (pin 59) to ‘1’, which switches the power supply off.

- Detecting pump connection to 100-240VAC mains power or 12VDC by the signal at the P5.6 input (pin 33) (‘1’ – when connected). At this state transistor T11 opens thereby activating the MAINS indicator on the front panel. When pump is running on internal battery, microcontroller activates the BATTERY indicator by setting the P2.0 output (pin 47) to ‘1’.

- Obtaining information from the battery monitoring circuit on the battery voltage, temperature and capacity via the input P7.6 (pin 25); obtaining battery fast charge signal via the P5.14 input (pin 43) (‘0’ – fast charge in progress); disabling the

AC mains supply by setting the P7.4 output (pin 23) to ‘1’ in the battery calibration mode.

- Activating the Nurse Call circuit located at the Supply Unit, by setting the P2.5 output (pin 52) to ‘1’.

- Receiving voltage proportional to syringe size from the syringe size sensor via the

AN0 input (pin 27). Force sensor reference voltage is applied to the AN1 input

(pin 28). Voltage directly proportional to force acting on the syringe pusher, is applied to the AN2 input (pin 29). Force sensor reference 0 voltage is applied to the AN3 input (30 pin). Syringe retainer output voltage (see table 1) is applied to the input AN4 (pin 31). Voltage from piezo transducer current monitor is applied to the input AN5 (pin 32). The P2.12 output is used for controlling force sensor’s supply.

- Controlling (pulse modulating) the current through the LEDs of the drive engaged, gripper and pusher lever sensors via the P2.13 output (pin 62); receiving signal of engagement of drive half-nuts with lead screw (‘1’ pulses) via the P5.13 input (pin 42) (via the buffer U20); receiving signal that syringe barrel is fitted

(‘0’ level) via the P5.12 input (pin 41) (via the buffer U4E); receiving tachometer pulses from the Drive Unit board via the P2.15 input (pin 64). Prior to starting motor rotating backwards and during it microcontroller sets the P2.11 output (pin

60) to ‘0’ to disable motor direction sensor in the Drive Unit board; during normal infusion this output is set to ‘1’.

- Generating signals for the stepper motor controller/driver which is located in the

Drive Unit board: Data A via the P2.6 output (pin 53), Data B via the P2.7 (pin

54), Strobe A,B via the P2.8 (pin 57), Clock A,B via the P2.9 (pin 58). Signal controlling magnitude of motor winding current is generated at the POUT0 output

(pin 19) by means of PWM; AC component of this signal is suppressed by means of the second order low-pass filter (R54, C71, R56, C73), and DC component having range 0.4 to 2.5 V is transferred via the diode D23 and pin 4 of JP10 to the

Drive Unit board – REF/ENABLE A,B circuit. This circuit is used also for disabling motor driver by applying +5 V to it. For this sake pin 4 of JP10 is also connected with the P7.7 output of microcontroller (pin 26) and output of watchdog via the D21 and D22 correspondingly; logic ‘1’ at any of these two


outputs sets windings current to zero (e.g. in STOP mode, during pause between two adjacent steps or when the watchdog is activated).

- Selecting IRDA rate via the P6.4 output (pin 5). Selecting of UART connection either with the RS232 or IRDA interface via the P6.5 output (pin 6). The P6.7 output is set to ‘1’ when RS232 selected, and ‘0’ is set when IRDA interface selected.

- Activates Z1 buzzer by setting output P6.7 to ‘1’ when piezotransducer circuit is interrupted;

- receiving interrupt pulses from the SRAM (U8) Real Time Clock via the T2IN input (pin 74);

- receiving pulses from the syringe pusher position sensor via T4IN input (pin 70).

2.2.2. Display unit

A 240 x 64 dot blue negative graphic LCD display (MD1) is used in the pump. The backlight is controlled by means of PWM, using control signal generated at the POUT2 output (pin 21) of the microcontroller.

2.2.3. Display contrast regulator

Negative voltage adjustable within range of 7.5 to 8.5 V is utilized to control the display contrast. The negative voltage is generated by means of the DC/DC converter U16, and voltage regulator U17. Initial voltage value is adjusted by means of trimmer potentiometer R52. The microcontroller U12 then controls display contrast by means of PWM signal generated at the

POUT3 output (pin 22) and applied to pin6 of the U17 via low-pass filter R50, C60 and diode

D19.

2.2.4. RS232 interface circuit

The RS232 interface circuit is isolated from the pump circuitry by means of the opto-couplers

D8, D9. This isolated part of the circuit is powered from the PC COM port using RTS (+10V) and DTR (+10V), rectified by means of the D6, D7 diodes signals. Voltage regulator U1 is used to provide the RS232 interface chip U3 with +5V supply (VDD).

U3 includes a DC/DC converter providing the necessary voltages of +7V and –7V. Integrated circuit U3 hibernates when no valid receiver level and no receiver or transmitter transient is detected for 30 seconds, and wake up when a valid receiver level or receiver or transmitter transient is detected.

2.2.5. Watchdog circuit

The watchdog function is carried out by the uP supervisory circuits with windowed (Min/Max) watchdog U9. The microcontroller generates clocks at the P2.4 output (pin 51) that are applied to the WDI input (pin 3 of U9). If the clock period goes outside the permissible range, U9 generates a short logic ‘0’ pulse at the WDP0 output (pin 5). This pulse sets ‘1’ at the Q output (pin5) of the flip-flop U6A, which acts as follows:

1) Stops motor (via the D22),

2) Activates red alarm LED D1 (via the D4),

3) Activates the nurse call circuit located in the Supply Unit (via the D16),


4) Launches the buzzer Z1 (via the D10),

5) Eliminates 3 s delay when switching the pump off (via the input 5 of U11),

6) Indicates to the microcontroller U12 that watchdog is activated (via the P5.8 input – pin 35).

The watchdog circuit is also activated if the motor starts rotating backwards despite forward rotation commands. In this case the rotation direction sensor in the Drive Unit board sets

“Backwards” circuit (pin 3 of JP9) to ‘0’ which inputs logic “0” to the watchdog (via D18) thus activating it.

The pump carries out watchdog test each time it is powered up, and if test passes successfully

U6B trigger Q output (pin 9) is set to ‘0’, if test fails – Q output is set to ‘1’. This watchdog signal is applied to the 67 pin of U12 microcontroller.

2.2.6. Piezotransducer drive

The audible signal is generated by means of PWM at the POUT1 output (pin 20) of the microcontroller U12. Carrier frequency is suppressed by third order low-pass filter (R58, C75,

R60, C76, R61, C77).

In order to obtain double maximal output voltage a bridge layout of the U18 amplifier is used.

The ratio of R64 and R67 determines audio gain.

R77 monitors current applied on the piezotransducer. Signal from the R77 is amplified by the

U18A amplifier, rectified with the D21, C86 and applied to the AN5 input (pin 32) of the U12 microcontroller.

2.2.7. Reference voltage source

Voltage regulator U7 generates voltage Vref used as reference for the microcontroller’s ADC and the syringe size sensor. U7 is switched on/off by microcontroller (via the P6.6 output).

2.2.8. LED indicators

The red LED indicator D1 flashes when an ALARM condition is detected or when the watchdog circuit is activated. It is controlled by the microcontroller U12 via the P2.2 output (pin 49) or by the watchdog (via the D4). The Green LED D2 flashes during infusion. It is controlled via the

P2.3 output (pin 50) of the microcontroller. The orange LED D3 flashes in ALERT condition. It is controlled via the P2.1 output (pin 48).

2.3. DRIVE UNIT BOARD

The drive electronics is located on the separate PCB attached to drive mechanical assembly.

Controller-driver U2 is used to operate the stepper motor. It controls current through motor windings by means of the PWM using control signals from the microcontroller: “Data A” (pin 6 of the U2), “Data B” (pin 17), “Strobe A,B” (pins 2, 13), “Clock A,B” (pins 5, 16),

“REF/ENABLE A,B” (pins 3, 14). Each step of the motor consists of 8 successive micro-steps, which provide regulation of current through windings closely to sin/cos law, thus ensuring smooth rotation of the motor shaft. In the case the watchdog is actuated, a high level (+5V) signal is applied to the “REF/ENABLE A,B” inputs, which removes power from the motor windings.

Quadrature signals from the motor encoder are processed by means of the decoder built on the

U6, U7, and U8 integrated circuits. 9 square pulses are generated at the TAX output (pin2 of

JP2) during one revolution of motor shaft. The “BACKWARDS” output is used to indicate


direction of motor rotation. Logic “0” is generated at this output if motor starts rotating so as to move syringe pusher backwards while logic “1” is applied to the FWD input (i.e. motor should not rotate backwards). Logic “0” applied to the FWD input (pin 1 of JP2) disables the direction sensor and ensures that logic “1” is set at the “BACKWARDS” output regardless of rotation direction.

The operational amplifier U1 amplifies syringe force sensor’s output signal. Integrated circuit U3 produces precise supply voltage +5V both for the syringe force sensor and amplifier U1. The trimmer potentiometer R2 is used to balance the force gauge (bridge).

U5A performs buffering of syringe retainer output signal, and U5B performs conditioning of pusher position sensor’s signal.

2.4. POWER SUPPLY UNIT

The power supply unit includes switching power supply PS1, +5V voltage regulator U2, and accumulator battery fast-charge controller U1 together with transistor T4. Protective circuits built using comparators U3, U6 and thyristors D6, D7 are intended to prevent occurrence of over-voltage and under-voltage at the +5V supply circuit in the case of failure of voltage regulator or short circuits within pump electronics.

Voltage in the VccNS circuit is approximately +11V when pump is connected to the mains, and approximately +7V when disconnected (powered from the internal battery). Vcc voltage is +5V when pump is switched on, and 0 when switched off. The +5V regulator (U2) is switched on when VccNS voltage is applied to its “ON/OFF” input (pin 2), which occurs when the operator presses the pump’s ON/OFF key. The regulator is switched off by means of the “SHDN” signal, which is generated by microcontroller when the operator depresses the ON/OFF key for 3 seconds.

The T8 transistor key is used for switching mains supply off in the course of the accumulator battery test.

The controller U1 initiates fast charge of accumulator battery each time the pump is connected to the mains. Detecting a negative battery voltage slope, which occurs when charge is completed, normally terminates fast charge. For safety reasons termination of the fast charge is provided by means of the thermistor within the battery pack detecting over-temperature. Additionally, termination of fast charge is provided on elapsing of established fast charge time. After termination of fast charge the controller switches to trickle charge mode.

A socket is located on the pump for powering from an external 12VDC source. This circuit comprises a connector on the rear side of pump and fuses F2, F3, and filter components L1, L2,

C21, C22 mounted on the power supply unit’s PCB. Diode D10 prevents pump from damaging in case of wrong polarity of external 12 VDC source.

2.5. IRDA/RS232/NURSE CALL INTERFACE

2.5.5. IRDA interface

Serial infrared data communication is operating in accordance with the IRDA standard using modulator-demodulator U4 and transceiver U5 located on the power supply’s PCB.


The transceiver is mounted on the rear of the PCB, in front of the window at the back of the pump. The window is covered with dark IR-transparent plastic.

2.5.6. RS232 interface

The technical specification of the RS232 Interface is listed in table 2 below:

Connector

TXD Output Voltage Range

RXD Input Voltage Range

RXD Input Thresholds

RXD Input Resistance

Isolation Socket/pump

Baud Rate

Bit Format

Table 2

D Type –9 Pin, female

Minimum: -5V(mark), +5V(space)

Typical: -5.4V(mark), +5.4V(space) with 3kohm load to ground

-25V - +25V maximum

Low: 0.8V minimum/ High: 2.4V maximum

3 kohm minimum

4 kV

115 kBaud

1 start, 8 data, no parity, 1 stop

RS232 connections data:

1 - Not used

2 - Transmit Data (TXD) Output

3 - Received Data (RXD) Input

4 - Power Input (DTR)

5 - Ground (GND)

6 - Not used

7 - Power Input (RTS)

8 - Not used

9 - Not used

2.5.7. Nurse Call Interface

Nurse call interface is implemented using relay RL1 located on the power supply’s PCB.

Contacts are rated at 1A at 50VAC or 1 A at 30VDC. Relay contacts are accessible at the connector on the rear of the pump.

After detecting an alarm condition the microcontroller sets a logic “1” at its P2.5 output (pin 52), which opens transistor T3 on the power supply’s PCB and the relay is activated. If a failure of the microcontroller is detected an output signal from the watchdog circuits activated the relay.

2.6. BOOTSTRAP LOADER UNIT

A bootstrap loader unit is used for downloading bootstrap into the Flash memory U10 on the

Electronic board, utilizing microcontroller’s U12 internal bootstrap loader, when the Flash memory’s software does not contain bootstrap or it does not work. Bootstrap loader unit is connected to the JP6 connector of the Electronic board. It allows launching the U12 microcontroller by means of manual reset signal, maintains Power Supply Unit active, commutates UART via the RS232 interface and configures the microcontroller so as to launch its internal bootstrap loader.


3. USER CONFIGURATION MENU

Depressed the key and turn the pump on. Enter code

237

using the numerical keypad.

Press OK to confirm the code. The User Configuration Menu will be displayed. Use the

softkeys to select the required parameter (see Operator’s Manual).

4. SERVICE MENU

While keeping pressed the key turn the pump on. Enter code

751

using the numerical keypad. Press OK to confirm the code. The Service Menu will be displayed. Use the

softkeys to select the required parameter.

4.1. MAINTENANCE MENU

Select the MAINTENANCE MENU from the Service menu and press the OK softkey. Use the

softkeys to select the required parameter. Press the OK softkey:

- to modify the NEXT SERVICE DATE

- to view the selected LOG (event, use, key or service)

- to set TIME FORMAT (24h or 12h)

- to set DATE FORMAT (dd-MM-yyyy or MM-dd-yyyy)

- to set DEFAULT PARAMETERS

- to set ALARM PITCH

- to set ALERT PITCH

- to view serial number

- to select INTERFACE type (RS232 or IRDA). (Only one of these interfaces may be active at a time.)

Press the QUIT softkey to return to Service menu.

4.2. LOADING PROGRAM

4.2.1. Loading program

In order to check the program version, keep the key depressed while turning the pump on.

To perform a programming operation, the following is required:

- Flo-Gard GSP Firmware Upload Utility must be installed and configured on the computer that is being used.

- Either RS232 extension cable must be connected between the COM port of the computer and the 9-way ‘D’ connector in the rear of the pump.

Select the LOADING PROGRAM and press the OK softkey. The pump is ready for loading the program.

Note. When the ERROR: PR02 message (incorrect program CRC) is displayed, the pump also is ready for loading the program.


Programming sequence:

Start Flo-Gard GSP Firmware Upload Utility application by clicking on the appropriate icon.

Select which COM port is going to be used.

Click on ( Load configuration Set) in order to load program.

Click on Firmware key to start the programming operation.

Note. When the ERROR: OTH01 message is displayed set DEFAULT PARAMETERS.

Having loaded new program it is necessary to execute full testing (see Section 4.4.1).

4.2.2. Loading Bootstrap

In order to perform a programming operation, the following should be in place:

- Flo-Gard GSP Firmware Upload Utility should be installed and configured on the computer that is being used.

- Having opened the pump housing, Bootstrap Loader Unit should be connected to the Electronic board connector JP6 (Bootstrap Loader Unit switch should be in ON position).

- RS232 extension cable connected between the COM port of the computer and the 9-way ‘D’ connector in the rear of the pump.

Switch on the pump. Press the Reset key on the Bootstrap Loader Unit. The pump is now ready to download a Bootstrap.

Programming sequence:

Start Flo-Gard GSP Firmware Upload Utility application by clicking on the appropriate icon.

Select which COM port is going to be used.

Click on (Load configuration Set) in order to load Bootstrap.

Click on Bootloader key to start the programming operation.

After Bootstrap downloading process is completed, it is necessary to switch Bootstrap Loader

Unit switch into OFF position and to press the Reset key.

4.3. CALIBRATION

Select the CALIBRATION from the Service menu and press the OK softkey. Select item to be calibrated using the softkeys and press the OK softkey.

4.3.1. Syringe size sensor calibration

The syringe size detection system stores the characteristics of the syringe clamp assembly, including the travel of the linear potentiometer in non-volatile memory.

Equipment:


- Spacer (gauge) SP1 (B8640037-01) or old (B8640022-01);



- Spacer (gauge) SP4 (B8640023).

Select the Syringe size sensor from calibration menu and press the OK softkey. With the syringe clamp at the lowermost position press the OK softkey. One after another insert spacers from 1 to 4, each time closing the syringe clamp and pressing the OK softkey to acknowledge.

Finally fix the syringe clamp at the uppermost position and again press the OK softkey.

4.3.2. Pusher position sensor calibration

Equipment:

- Calibration spacer (gauge) SP1 (B8640037-01) or old (B8640022-01).

Select the Pusher position sensor from calibration menu and press the OK softkey. When display reads the message Insert spacer SP1, insert the spacer SP1 and slide the drive pusher to the spacer SP1. Press the OK softkey. Syringe pusher moves backwards and afterwards returns to the spacer SP1. Following question will be indicated on display:

Is pusher contacting the spacer?

If pusher is not contacting the spacer, press the NO softkey and repeat the calibration. If pusher is contacting the spacer, press the YES softkey. Following message will be indicated on display:

Offset XX mm, where XX value shall be (10-13) mm. Press the QUIT softkey to exit.

4.3.3. Force sensor calibration

Equipment:

- Digitron pressure meter, model: 2022P (0-1500 mmHg);

- 50 ml BD PLASTIPAK or 60 ml BD syringe with extension line.

Select the Force sensor from calibration menu and press the OK softkey. The “0 cm Hg

>XXXmV<” message should appear on the screen.

First step is to be performed without loading syringe. Make sure that plunger retainer lever is released and plunger grippers are in idle position, and pushing surface of the retainer is not in contact with any part of pump or extraneous object. Leave the pump at rest for at least 15 min, then press and release the retainer lever a few times. Make sure that actual output value of the force sensor displayed on the pump screen is (1100±400) mV; if necessary, adjust it by means of the R2 potentiometer on the Drive Unit board. Press the OK softkey, and the “Insert 60 ml BD or 50 ml BD PLASTIPAK” message should appear.

Fill syringe with 10-20 ml of water, and fit it to the pump. Connect syringe to the pressure meter by means of the extension line. Locate the pressure meter at the same height as the syringe. Press the RUN softkey and keep it depressed, allowing the transmission to run until the pressure meter reads (148±1.5) cmHg. When approaching the target value, it is recommended to run transmission in short steps, since if you fail to stop transmission timely and target value is


overridden, calibration procedure must be repeated from the beginning. When pressure is adjusted as required, press the OK softkey, then press retainer lever and move the retainer away from the plunger.

Leave the pump at rest for at least 15 min, then press and release the retainer lever a few times and check the values displayed on the pump screen to make sure the following:

− difference between actual output value and V1 value is not greater than ±10 mV, otherwise this calibration procedure shall be repeated from the beginning (a few times, if necessary),

− difference between V2 and V1 values is within range of 1500-2900 mV. Wrong readings may indicate malfunction of the force sensor or the Drive Unit.

Press the QUIT softkey to exit.

4.3.4. Battery calibration

Battery calibration cycles the battery through a charge, discharge, re-charge sequence during which the fuel gauge within Battery Unit will be updated with a measurement of the current capacity of the cells.

This calibration allows the fuel gauge to monitor accurately the charge in the pack. Over time the estimate of capacity may drift from the actual cell capacity, which generally decreases with time.

Recalibration will update the fuel gauge with the measured capacity of the cells.

Remove the battery pack lid to ensure a stable pack environment during calibration. It is recommended that the pack is removed from the battery compartment and placed behind the pump.

Connect the pump to the mains.

Extend the plunger drive arm to the maximum as it will automatically move during the discharge phase. Select the Battery from calibration menu and press the OK softkey. Leave pump in calibration mode for up to 14 hours. The cycle should run passing automatically three phases one by one:

•

Initial charge phase – 0 to 3 hours

•

Measured discharge phase. Pack is discharged using typical load down to 1.1 V per cell to determine how much charge is available from the pack – up to 10 hours

•

Final charge phase. Pack is fully recharged ready for use. Early in this phase the measured discharge value is transferred to the pack gas gauge to be stored as the new capacity (mAh).

While the calibration cycle is active the battery related information is displayed on the pump screen. At the end of the cycle the screen should show CALIBRATION COMPLETED. Press the QUIT softkey to exit.


4.4. TESTING

Select the TESTING from the Service menu and press the OK softkey. Select the item to be tested using the softkeys and press the OK softkey.

4.4.1. Full testing

This section provides a complete pump test procedure. During test it is possible to review and modify following parameters: language, date, time, next service date. Follow each stage test and follow the instructions on the display use the QUIT softkey to move to the other test.

4.4.2. Program testing

This test is intended to calculate program and bootstrap CRC. Select the Program from testing menu and press the OK softkey. Software version, bootstrap version and calculated CRC values are indicated in the display. Press the QUIT softkey to return to TESTING menu.

4.4.3. Drive sensors test

This test enables checking of the following sensors: syringe barrel, plunger grippers, push lever and drive disengaged.

Select Drive Sensors from the testing menu and press the OK softkey. Loading and removing the syringe will cause the sensors status to changes indicated on the pump display.

Drive engagement sensor can not be activated if nut and lead screw threads come “tooth on tooth”. In such case slide the syringe pusher to another position and repeat the checking.

Once complete press the QUIT softkey to return to TESTING menu.

4.4.4. Syringe size sensor test

This test is enables checking the operation of syringe size sensor.

Select Syringe size sensor from the testing menu and press the OK softkey. Slowly lift the syringe clamp. Check if syringe size sensor value changes (mV and mm). Having finished testing press the QUIT softkey to return to TESTING menu.

4.4.5. Pusher position sensor test

This test is enables checking the operation of pusher position sensor. Select Pusher position

sensor from the testing menu and press the OK softkey. Insert the spacer SP1and slide the drive pusher to the spacer SP1. Press the OK key. Syringe pusher moves backwards and afterwards returns to the spacer SP1. Pusher position distance (22 ± 0.5)mm should be indicated on the display. Having finished testing press the QUIT softkey to return to TESTING menu.

4.4.6. Motor test

This test enables checking of the motor operation. During test no syringe should be installed.

Select Motor from the testing menu and press the OK softkey. Having finished testing press the

QUIT softkey to return to TESTING menu.


4.4.7. Display test

This test checks that all of the display pixels (240x64) illuminate. Select Display from testing menu and press the OK softkey. Observe “chess-board” structure fields that appear in the display. All the rectangles should be same shaped and evenly filled. Having finished testing press the QUIT softkey to return to TESTING menu.

4.4.8. Nurse call test

Equipment:

- Nurse call cable (B6650012);

- Ohmmeter.

This test checks the nurse call circuit operation. Select Nurse call from testing menu and press the OK softkey. Using a meter check the circuit between the Nurse call contact 3 (com) and contacts 1 (NO), 5 (NC). The contacts should toggle each time the CHANGE softkey is pressed, as indicated on the display. Press the QUIT softkey to return to TESTING menu.

4.4.9. Piezotransducer (speaker)/buzzer test

This test checks the piezotransducer (speaker) and buzzer operation. Select Speaker/buzzer from the testing menu and press the OK softkey. Check for the alternating volume and pitches sound from the speaker. Check for the sound from the buzzer. Press the QUIT softkey to return to TESTING menu.

4.4.10. Keyboard test

This test enables checking the keypad operation. Select Keyboard from the testing menu and press the OK softkey. You will be prompted to press keys on the display (flashing) in sequence.

4.4.11. LEDs test

This test is intended to check the LED operation. Select LEDs from testing menu and press the

OK softkey. The following LEDs should activate one after another: ALARM, ALERT, INFUS. and BATTERY. In order to check the operation of BATTERY LED it is necessary to connect the power cable. In order to check the operation of MAINS LED it is necessary to remove and reconnect the power cable. Press the QUIT softkey to return to TESTING menu.

4.4.12. Watch-dog test

This test enables checking of the watch-dog circuit operation. Select Watch-Dog from testing menu and press the OK softkey. Initially the watch-dog circuit is applied with an over frequency signal and later with an under frequency signal. When test completed switch off the pump using the OFF key.


5. RECOMMENDED ROUTINE MAINTENANCE AND TESTING

It is recommended that routine maintenance be carried out at least once a year. This should include:

- AC Mains / Battery operational checks (section 5.1).

- General cleaning and inspection for damage (section 5.2).

- Battery test (section 5.3).

- Infusion rate check (section 5.4).

- Occlusion pressure level check (section 5.5).

- Full test (sections 4.4.1-4.4.12).

5.1. AC MAINS / BATTERY OPERATION CHECK

Switch the pump on and plug pump into the mains. Observe that the MAINS indication LED becomes illuminated. Remover the mains supply and observe that the MAINS LED switches off.

Observe that the battery indication LED becomes illuminated as the mains supply is removed.

5.2. GENERAL CLEANING AND INSPECTION FOR DAMAGE

To ensure that this pump remains in good operating condition, it is important to keep it clean and carry out the routine procedures described below. Servicing should be performed only by a qualified service engineer, with reference to this manual. The following routine maintenance procedures should be carried out as required but at least once per year:

Thoroughly clean external surfaces of the pump before and after prolonged periods of storages by wiping a lint-free cloth lightly dampened with warm water and standard disinfectant/detergent solution.

Disinfectants known to be corrosive to metals and plastics must not be used.

Before cleaning always switch OFF and disconnect from the AC power supply.

Never allow liquid to enter the casing and avoid excessive fluid build up on the pump.

Do not use aggressive cleaning agents as these may damage the exterior surface of the pump.

Do not steam autoclave, ethylene oxide sterilize or immerse this pump in any fluid.

Check Labels should be flat and legible. Replace as required

Case components must be checked for damage that may affect function, present fluid ingress routes and present a user hazard must be replaced as necessary.

Check the operation of the pole clamp screw. Check it is not loose and that the threads are not damaged. Check that it folds away correctly.

Inspect the AC power supply inlet and cable for sings of damage.


5.3. BATTERY TEST

Perform battery calibration in accordance with 4.3.4. When calibration is completed and the battery is fully charged (at least 2 hours 30 minutes on charge) disconnect the pump from the mains. Load 50 ml BD Plastipak or 60ml BD syringe with the plunger at 60.0 ml position on the syringe barrel scale.

Set the 5.0 ml/h rate and start infusion (see the Operator’s Manual for further information on starting the pump).

Normally pump should be able to work on battery for about 10 hours. If this time is significantly less battery should be replaced.

After completion of the test the pump should be recharged for a minimum of 2 hours 30 minutes.

5.4. INFUSION RATE CHECK

Equipment:

- stop-watch;

- graduated glass test-tube (one point equals to 0.1 ml, volume 60ml or more).

Take the BD Plastipak 50 ml or 60 ml BD syringe with extension set and fill it with distilled water up to point of 60ml. Program the following infusion parameters:

- VTBI 50 ml;

- Rate 50 ml/h.

Insert the free end of extension set into the test-tube and start the infusion. Measure infusion time with the stop-watch and read the volume of water delivered into the test-tube. Calculate the infusion rate. It shall be 50ml/h

±

1ml/h (

±

2%).

5.5.OCCLUSION PRESSURE LEVEL CHECK

Equipment:

- Digitron pressure meter, model: 2022P (0-1500mmHg).

Fill the 50 ml BD Plastipak or 60 ml BD syringe with 20-30 ml of the distilled water and connect it to the pressure meter using the extension set. Switch on the pressure meter and set the max/min pressure recording mode.

Set pump occlusion alarm level to L-5 and launch infusion at 5 ml/hr rate (for pump operation details refer to the Operator’s Manual).

When pump will stop and indicate OCCLUSION read the maximum pressure recorded by pressure meter. Readings shall be within (63 - 107) cmHg range.

If recorded value is outside this range, re-calibrate the force sensor in accordance with 4.3.3 and repeat this test.


6. TROUBLE-SHOOTING

6.1.SAFETY WARNINGS

- Use extreme caution when pump whilst it is connected to the AC mains.

Hazardous voltages are present at the mains inlet and on the power supply even the pump is switched off.

- Disconnect the battery and AC power whenever removing or inserting PCBs or other connectors.

-

This pump contains static-sensitive components. Wherever the ESD symbol appears observe strict precaution for the protection of static-sensitive components when attempting to service and repair the pump.

- Always visually inspect the pump, power cord and plug for damage. If the power cord or plug is damaged they should be replaced.

- Should further technical assistance be required call your local BAXTER Service

Centre.

6.2. PUMP HAS BEEN DROPPED OR DAMAGED

If the pump is dropped or damaged, the damaged parts should be identified and replaced before any further troubleshooting is carried out.

During inspection, careful attention should be paid to the front and rear case halves, for signs of drop damage. Also check the pump drive, syringe pusher, syringe pusher drive, syringe size sensor.

6.3. PUMP HAS BEEN EXPOSED TO FLUIDS

Excessive fluid spills can lead to fluid ingress into the pump. Even if the fluid dries out, deposits can be left which cause the pump to fail.

If fluid ingress is suspected the pump should be inspected internally.

Clean and dry out the pump.

Take care to ensure dried deposits do not remain on the PCBs or other electrical components.

Replace any damaged PCBs or components.


6.4. TROUBLE-SHOOTING BY FAULT SYMPTOM

SYMPTOM

MAINS LED does not light when plugged into a known good AC outlet. BATTERY

LED lights, when pump is powered up. MAINS LED lights when powered from

12VDC.

MAINS LED does not light when plugged into a known good AC or 12VDC outlet.

BATTERY LED lights when pump is powered up.

MAINS LED is light. Pump does not switch on.

Pump is unplugged.

BATTERY LED does not light when pump is powered up.

One or more keypad key presses are not accepted.

Too high or too low contrast level.

CHECK

Check mains cord

Check switching power supply

CORRECTIVE ACTION

Replace mains cord.

Replace switching power supply if necessary.

Check the MAINS LED of the keypad K1 and keypad connection with the

Electronic board connector

JP12.

Check Electronic board.

Check fuse F1 in the Supply

Unit.

Check the BATTERY LED of the keypad K1 and keypad connection with the


JP12.

Perform keypad test.

Replace keypad K1 if necessary.

Replace Electronic board if necessary.

Replace fuse F1 with identical one.

Replace keypad K1 if necessary.

Replace keypad if necessary.

Backlight does not operate when pump is powered on.

Check contrast setting.

Check the voltage of the

Electronics Board test point

TP9. The value should be

(-8,0

±

0,1)V, when contrast is set to level 6.

Check backlight setting.

Check backlight circuit interconnection on Electronic board

Check Display Unit and its connection with the


JP13.

Adjust the contrast as described in Operator’s

Manual.

Adjust voltage by means of

R52, if the problem persists – replace the Electronic board.

Adjust the backlight as described in Operator’s

Manual.

If necessary replace

Electronic board.

If necessary replace Display

Unit.


Red alarm LED does not light when alarm occurs.

Yellow alert LED does not light when alert occurs.

Green infusion LED does not light while pump is running.

Second (long) audible alarm does not sound after power on.

After power up the pump display empty or horizontal lines illuminated only, no backlight and watchdog activated.

Syringe gripper sensor does not activate when syringe is loaded.

Pusher lever sensor does not activate when syringe is loaded.

Syringe barrel sensor does not activate when syringe is loaded.

Drive engaged sensor does not activate when syringe is loaded.

Check red alarm LED (D1) in the Electronic board.

Check yellow alert LED (D3) in the Electronic board.

Check green infusion LED

(D2) in the Electronic board.

Check buzzer (Z1) in the

Electronic board.

Check for the presence of

VCC of +5V on Electronic board. Check if reset duration is (TP4) > 100ms.

Check if quartz oscillator

(Q1) is working.

Check syringe gripper

(retainer) sensor signal (see section 2.1.5).

Check pusher lever (retainer) sensor signal (see section

2.1.5).

Check syringe barrel sensor and its connection on the

Electronic board.

Syringe size sensor does not determine syringe size.

Pusher position sensor calculates time to end of infusion (syringe) incorrectly.

Stepper motor is not rotating when it should.

Check drive engaged sensor and its connection with Drive

Unit board. Check the circuit starting from drive engaged sensor to the Electronic board.

Calibrate syringe size sensor

(see section 4.3.1). If the problem persists - check syringe size sensor.

Calibrate pusher position sensor (see section 4.3.2). If the problem persists - check pusher position sensor.

Check encoder unit.

Check stepper motor.

Check Drive Unit board.

Check motor belt.

Replace faulty red alarm

LED (D1).

Replace faulty yellow alert

LED (D3).

Replace faulty green infusion

LED (D2).

Replace faulty buzzer (Z1).

If necessary load bootstrap and afterwards load program.

If necessary replace syringe pusher with syringe gripper sensor.

If necessary replace syringe pusher with pusher lever sensor.

If necessary replace syringe barrel sensor.

If necessary replace drive with drive engaged sensor.

If necessary replace syringe size sensor.

If necessary replace encoder ruler.

If necessary replace sensors unit B6660032.

If necessary replace encoder unit.

If necessary replace stepper motor.

If necessary replace Drive

Unit board.

If necessary replace motor belt.


Occlusion pressure level incorrect.

Calibrate syringe force sensor (see section 4.3.3) If the problem persists - check syringe force sensor.

Check syringe force sensor amplifier circuit.

Calibrate battery unit (see Too short operation time on battery.

Pump does not operate from external 12 VDC (MAINS

LED does not operate).

Pump operates from the AC section 4.3.4).

Check 12VDC & Nurse call connector unit.

Check fuses F2, F3 in Supply power supply. Unit.

Nurse Call does not operate. Perform Nurse Call test.

Check nurse call circuit interconnection on Supply

RS232 interface does not operate (communication via the RS232 interface enabled in maintenance menu).

Unit.

Check RS232 connector unit.

Check RS232 cable.

Check RS232 circuit interconnection on Electronic board.

IRDA interface does not operate (communication via the IRDA interface enabled in maintenance menu).

Versatile clamp does not fix to the pump.

Check IRDA circuit interconnection on Supply

Unit.

Check Supply Unit connection with the


JP3.

Check IRDA circuit interconnection on Electronic board.

Check versatile clamp.

If necessary replace syringe pusher with syringe force sensor.

If necessary replace Drive

Unit board.

If necessary replace battery unit.

If necessary replace 12VDC

& Nurse call connector unit.

If necessary replace fuses F2,

F3 with identical ones.

If necessary replace 12VDC

& Nurse call connector unit.

If necessary replace Supply

Unit.

If necessary replace RS232 connector unit.

If necessary replace RS232 cable.


Electronic board.


Unit.


Unit.


Electronic board.

If necessary replace versatile clamp.


6.5 TROUBLE-SHOOTING BY FAILURE CODES

CODE DESCRIPTION CORRECTIVE ACTION

BT01

BT02

BT03

BT04

BT05

BT06

BT07

Communications with the battery fuel gauge has failed.

The battery cell voltage is low (less than

1.05V per cell).

The battery cell voltage is high (greater than

1.75V per cell).

The battery temperature is high (greater than

60

°

C).

The battery charging current is high (greater than 1.5A).

The battery discharging current is high

(greater than 1.5A).

The battery charging current is low (less than 50mA)

Inspect cables between Battery

Monitoring, Drive Unit board and

Electronic board.

Charge battery, if failure code recurs, replace Battery Unit.

Check battery charge circuit and replace power supply unit if necessary.



Disconnect one by one all the connectors, find current leakage place and replace faulty unit.

Inspect cables between battery

Monitoring and Power Supply Unit.

Check battery charge circuit and replace Power Supply Unit if necessary.

BT08

BT09

The battery fast charge time is longer then 3 hours 30 minutes

The battery is discharging whilst the pump is on the mains.


Inspect cables between battery

Monitoring and Power Supply Unit.


BT10 The battery monitor software module has failed.

Power off then on. If failure code recurs, replace software.

BT11 Incorrect CRC of the battery capacity

RT01 Accuracy of the real time clock or

Calibrate the battery

Replace SRAM on the Electronic microcontroller quartz clock is out of spec.

(

±

1%). board.

Replace Electronic board.

RT02 Real time clock software module has failed. Power off then on. If failure code recurs, replace software.

RT03 Incorrect date and time settings.

KY01 Keypad key has been depressed for 5

Set date and time.

Replace keypad. minutes.

KY02 Keypad monitor software module has failed. Power off then on. If failure code

WD01 W-D circuit failed recurs, replace software.

Replace Electronic board

WD02 W-D circuit failed

WD03 W-D circuit failed

Replace Electronic board

Replace Electronic board or Drive


WD04

WD05

WD06

WD07

W-D circuit failed

W-D circuit failed

W-D circuit failed

Watch-Dog circuit activated

Unit board

Replace Electronic board or Drive

Unit board

Power off then on. If failure code recurs, replace Electronic board

Power off then on. If failure code recurs, replace Electronic board

Power off then on. If failure code recurs, replace software or Electronic board.

WD08

WD09

SM04

BAR01



Accumulated stepper motor rotation speed is low or high in comparison of input steps and encoder.

Barrel sensor is damaged.



Replace Electronic board. EE01 Cannot read data from external EEPROM

EE02

EE03

PR01

PR02

PR03

BSxx

Cannot write data to external EEPROM

External EEPROM software module has failed.

Incorrect soft Bootstrap CRC

Incorrect program CRC

A certain program task not responding

Internal soft Bootstrap errors

SM01 Stepper motor software module has failed. Power off then on. If failure code recurs, replace software.

SM02 Momentarily stepper motor rotation speed is high in comparison of inputs steps and encoder.

Check Encoder Unit and replace it if necessary.

Check Drive Unit board and replace it if necessary.

SM03 Momentarily stepper motor rotation speed is low in comparison of input steps and encoder, or is not rotating when it should.



Power off then on. If failure code recurs, replace Bootstrap software.



Power off then on. If failure code recurs, replace Bootstrap software.



Check Stepper Motor and replace it if necessary.

Check Motor Belt and replace it if necessary.



Check Stepper Motor and replace it if necessary.

Check Motor Belt and replace it if necessary.

Check barrel sensor and replace it if necessary.


AB01

AB02

During antibolus motor has exceeded the step count limit.

During antibolus pusher position travel has exceeded the limit.

Power off then on. If failure code recurs, replace software. If the problem persists, replace Electronic board if necessary.

Power off then on. If failure code recurs, replace software. If the problem persists, replace Electronic board if necessary.

AB03 Antibolus duration has exceeded the limit. Power off then on. If failure code recurs, replace software. If the problem persists, replace Electronic board if necessary.

PS02 Pusher drive travel deviated from expected position based upon motor control.

Check pusher position sensor and replace encoder ruler or sensors unit

B6660032 if necessary.

PS03 Incorrect CRC of the pusher position table. Calibrate pusher position sensor.

PS04 Pusher position sensor readings out of range Calibrate pusher position and syringe for the inserted syringe. size sensors. If the problem persists, check and replace encoder ruler, sensors unit B6660032 or syringe size

PS05 Pusher position sensor has failed. sensor if necessary.



PS06

IO01 Input-output software module has failed.

SRE02

Invalid pusher position codes.

Pusher lever or drive engaged sensors are damaged.



Power off then on. If failure code

SS01 Syringe size sensor readings out of range. recurs, replace software.

Calibrate syringe size sensor. If the problem persists, check syringe size sensor and replace it if necessary.

Calibrate syringe size sensor. SS02 Incorrect CRC of the syringe table in

EEPROM

SS03 Incorrect CRC of the syringe table in SRAM Power off then on. If failure code recurs, replace SRAM.

SRE01 Syringe gripper and push lever (retainer) sensors readings out of range (>1.4V).

Check syringe gripper and push lever sensors and replace syringe pusher if necessary.

Check push lever sensor and drive

SRE03 Syringe retainer (pusher lever, syringe gripper) or drive engaged sensors are damaged. engaged sensor. Replace syringe pusher or drive if necessary.

Check push lever sensor, syringe gripper sensor and drive engaged sensor. Replace syringe pusher or drive if necessary.

SF01 Syringe force sensor reading out of range. Calibrate syringe force sensor. If the problem persists:

Check syringe force sensor and replace syringe pusher with syringe


SF02

SF03

Syringe force test reading out of range.

Syringe force 0 reference reading out of range. force sensor if necessary.

Check syringe force sensor amplifier circuit and replace Drive Unit board if necessary.

Calibrate syringe force sensor. If the problem persists:

Check syringe force sensor and replace syringe pusher with syringe force sensor if necessary.



Check syringe force sensor and replace syringe pusher with syringe force sensor if necessary.


SF04 Incorrect CRC of the force (pressure) table. Calibrate syringe force sensor.

SF05 Syringe force sensor reading not change

SF06

SF07

SR01

SC01

Syringe force reference voltage drift

Incorrect occlusion pressure level value in

EEPROM.

SRAM test failed.

Interrupted piezotransducer circuit.

Clean syringe pusher, check syringe force sensor and replace syringe pusher if necessary


Check syringe force sensor Uref and replace Drive Unit board if necessary.

Power off then on. Set the default occlusion pressure level. If failure code recurs, replace Electronic board if necessary.

Power off then on. If failure code recurs, replace Electronic board.

Check piezotransducer unit and replace it if necessary.

Check piezotransducer drive circuit and replace Electronic board if necessary.

SC02 Shorted piezotransducer circuit. Check piezotransducer unit and replace it if necessary.

Check piezotransducer drive circuit and replace Electronic board if necessary.

SC03 Sound control software module has failed. Power off then on. If failure code

LED01 LEDs control software module has failed. recurs, replace software.


AL01 Alarm manager software module has failed. Power off then on. If failure code


OFF1

LOG1

LOG2 Cannot read log (from flash).

LOG3 Cannot write log (to flash).

EV01 Software Event module has failed.

LCD01

Software OFF module has failed.

Software Log module has failed.

LCD display software module has failed

LCD02 Software graph plotting on display module has failed.

EOI01 Incorrect x ml near EOI settings.

EOI02 Incorrect x min near EOI settings.

BR01 Incorrect basal rate limit.

KOR01 Incorrect KVO rate.

MOD01 Incorrect infusion mode settings.

RES01

OCL01

PUR01 Incorrect purge volume limit.

PUR02 Incorrect purge rate for 10 ml syringe.

PUR03

PUR04

PUR05

PUR06

PUR07

Incorrect residual volume.

Incorrect restart count of after occlusion.

Incorrect purge rate for 20 ml syringe.




Incorrect purge rate for 5 ml syringe. recurs, replace software.

Replace software.







Set x ml near EOI value.

Set x min near EOI value.

Set basal rate limit.

Set KVO rate.

Select infusion mode.

Set residual volume.

Set restart count after occlusion.

Set purge volume limit.

Set purge rate for 10 ml syringe.






BOL01 Incorrect bolus volume limit. Set bolus volume limit.

BOL02 Incorrect max bolus rate for 10 ml syringe. Set max bolus rate for 10 ml syringe.





BOL07 Incorrect max bolus rate for 5 ml syringe.

TR01 Internal microcontroller TRAP activated

TR02

TR03

TR04

ID01

Internal microcontroller TRAP activated



Incorrect drug name or pump ID in

EEPROM.

Set max bolus rate for 5 ml syringe.





Power off then on. Set default parameters. If failure code recurs, replace Electronic board if necessary.

Replace software IF01 Pump software not compatible with hardware revision

OTH01 Other failures Check log, if necessary replace software


7. REPAIR

Ensure the unit is disconnected from AC power supply and switched off before attempting to service the pump.

The pump contains static-sensitive components. Wherever the ESD symbol appears observe strict precautions for the protection of static-sensitive components when attempting to service and repair the pump.

Refer to section 7.4 for torque guidelines. Components may fail or be damaged if not tightened to correct torque level.

During servicing components found to be damaged will require replacement. Follow the instructions below together with the assembly drawings in section 9 for further information.

Battery should be disposed of as outlined by the local country regulation. Do not send back to the manufacturer.

For additional technical assistance, contact your local BAXTER Service Centre.

7.1 ACCESS TO THE PUMP

In order to replace any label (85, 87, 88, 90, 91, 93, 95), the clip (84) or the leg (83) there is no need to disassemble the pump. Carefully using knife peel the old label, the old clip (84) or the old leg (83). Using isopropyl alcohol clean the case where the label, the clip or the leg will be positioned ensuring all old adhesive residue is removed. Stick the label (85, 87, 88, 90, 91, 93,

95) by pressing it firmly with a soft cloth. Stick the clip (84) by pressing it. Stick the leg (83) by pressing it.

Place the pump on an anti-static grounded surface. Remove the versatile clamp (44). Remove the

2 battery covers screws (61), remove the battery compartment lid (43), disconnect the battery unit cable and withdraw the battery unit (42). Remove the six case retaining screws (60) located on the back of the pump.

Turn the pump upside-down. Carefully separate the front and rear case halves and disconnect the power supply to the Electronic board cable, the piezotransducer cable, the RS232 cable and IrDA cable. It may be necessary to remove some of the connectors by applying gentle force to the cable.

Reassemble the pump in the reverse order. When reassembling ensure that the seal (45) under the battery compartment lid (43) and the seal (45) between the front and rear cases are correctly positioned.

7.2 FRONT CASE AND SUB-ASSEMBLIES

7.2.1 Removal instructions

7.2.1.1 Syringe barrel sensor cover removal

It is not necessary to disassemble the pump in order to replace syringe barrel sensor cover (28).

Use a knife to find the edge of the syringe barrel sensor cover (28) and carefully peel it back.

7.2.1.2 Keypads removal

Detach the flexi-cables of the keypad K1(25), K2(26) from the Electronic board (23). Carefully access the edge of the keypad, peel it back.


7.2.1.3 SRAM removal

In order to remove SRAM (24) from the Electronic board (23), carefully insert a small screwdriver under the SRAM (24) case at alternate edges and lift free.

7.2.1.4 Electronic board and display unit removal

Remove the five retaining screws (61) and disconnect all flexi-cables and cable connections.

Carefully withdraw the Electronic board (23) with display unit (22) from the front case.

Using pincer squeeze one by one all four standoff (79) snap locks and detach display unit (22) from the Electronic board (23). Disconnect the display unit (22) cables. If necessary loosen the screws (64) and withdraw standoffs (79) from display unit (22).

Ensure that the display panel and case panel remain protected from dust and scratches until the display is refitted.

Having removed the Electronic board (23) it is possible to remove and replace the red LED D1, green LED D2, yellow LED D3 or buzzer Z1 as required.

7.2.1.5 Syringe clamp removal

It is not necessary to disassemble the pump in order to replace the syringe clamp. Lift the syringe clamp (20) to the upper position and hold it in this position. Unscrew the syringe clamp screw

(59) and remove the syringe clamp (20).

7.2.1.6 Syringe size sensor removal

Remove the syringe clamp. Disconnect the syringe size sensor (19) cable. Remove the syringe sensor retainer screws (62) and carefully withdraw the syringe size sensor (19).

7.2.1.7 Drive Unit board removal

Disconnect the Drive Unit’s board flexi-cable and cable connections. Remove the retaining screws (63, 64). Carefully withdraw the Drive Unit board (17) from the front case.

7.2.1.8 Syringe pusher drive removal

Slide the syringe pusher to the right approx. 20mm from the extreme right position, to gain access to the drive fastening screws (57, 61). Remove the four retaining screws (55, 56).

Carefully withdraw the syringe pusher drive (15) and the shaft (18). Carefully withdraw the plastic screen (16).

7.2.1.9 Syringe pusher removal

Disconnect flexi-cables. Remove syringe pusher (12) from the stops (13) by pushing it to the left.

Remove stops (13) from the tube using a screwdriver. Remove syringe pusher (12).


7.2.1.10 Syringe support removal

Remove the two retaining screws (49). Remove the syringe support (11).

7.2.1.11 Drive removal

Remove the syringe pusher drive, syringe pusher and syringe support. Remove the ring (9).

Disconnect the Drive Unit board(17) cables from Electronic board (23). Remove the three retaining screws (57,61). Carefully withdraw the drive (10) from the front case.

7.2.1.12 Encoder ruler removal

Remove the drive. Remove the retaining screw (67) and nut (58). Remove the encoder ruler (7).

7.2.1.13 Sensors unit B6660032 removal

Remove the drive. Remove the encoder ruler. Disconnect the sensors unit B6660032 (8) cable from Drive Unit board (17). Remove the retaining screw (61). Remove the sensors unit

B6660032 (8).

7.2.1.14 Motor belt removal

Remove the drive. Remove the screw (66) and nut (70). Loosen the screw (63) and nut (70). In order to loosen the motor timing belt, rotate motor unit (5) relative to the screw (63). Pull off timing belt (6) from the bigger pulley. Rotate motor unit (5) relative to the screw (63) to the position, allowing remove of the belt (6). Remove the motor belt (6).

7.2.1.15 Motor unit removal

Remove the drive. Remove the motor belt. Disconnect the motor unit (5) cable from Drive Unit board (17). Remove the screw (63) and nut (70). Remove motor unit (5).

7.2.1.16 Encoder unit removal

Disconnect the encoder unit (3) cable from Drive Unit board (17). Remove the screw (69), the nut (70) and remove encoder unit (3).

7.2.1.17 Syringe barrel sensor removal

Remove the Electronic board. Remove the drive. Remove the screw (61) and remove syringe barrel sensor (1).


7.2.2 Installation instructions

7.2.2.1 Syringe barrel sensor fitting

Fit the syringe barrel sensor (1) and secure with screw (61). Barrel sensor (1) is adjusted as follows:

1. Drive (10), syringe support (11) and syringe size sensor (19) should be fitted.

2. Using multimeter check the circuit between contacts 1 and 2 of the barrel sensor’s (1) connector. The circuit should be open.

3. Load the 5 ml BD syringe and close the syringe clamp. Circuit between the contacts 1 and 2 should be short. If not, adjust position of the barrel sensor (1) by means of the screw (68), until required result is reached.

4. Load the 5 ml BD syringe incorrectly so that syringe barrel lays on the syringe support

(11) and close the syringe clamp. Circuit between contacts 1 and 2 should be open. If not, adjust barrel sensor with screw (68) until the required result is reached and repeat step 3.

5. Execute steps 3 and 4 with the 140 ml MONOJECT syringe. If this procedure required manipulation of the screw (68), then afterwards it is necessary to repeat checking with 5 ml BD syringe.

6. Fasten the screw (68) using adhesive.

7.2.2.2 Encoder unit installation

Fit encoder unit (3) and secure with screw (69) and the nut (70). Connect the encoder unit (3) cable to the Drive Unit board (17).

7.2.2.3 Motor unit and motor belt installation

Fit the motor unit (5) and fasten (not too tight) it with the screw (63), nut (70), via two dampers

(71) and two washers (75). Fit the two dampers (71) to the designated places between the motor and drive (10) wall. Rotate motor unit (5) relative to the screw (63) to the position, allowing fitting of the timing belt (6) on the pulley of the motor unit (5). Fit the belt (6) on the motor unit

(5) pulley.

Timing belt teeth should be directed to inside. Rotate the motor unit (5) relative to the screw (63) to the position allowing to fitting the timing belt (6) on the larger pulley.

Fix the motor unit (5) using screw (66) and nut (70) via dampers (71) and washer (75). Tighten timing belt as much, when it is pressed with a force of 1,5 N it should bend for a 2…3 mm.

Finally fix screw (63). Connect the motor unit (5) cable to the Drive Unit board(17).

7.2.2.4 Sensors unit B6660032 installation

Fit the sensors unit B6660032 (8) and secure with the screw (61). Connect the sensors unit

B6660032 (8) cable to Drive Unit board (17).

7.2.2.5 Encoder ruler installation

Fit the encoder ruler (7) and secure with the screw (67) and the nut (58) via washer (72). Perform pusher position sensor calibration procedure in accordance with the 4.3.2.


7.2.2.6 Drive installation

Install the drive (10) to the front case and secure with three screws (57,61). Connect the Drive

Unit board (17) cables to the Electronic board (23). Perform pusher position sensor calibration procedure in accordance with the 4.3.2.

7.2.2.7 Syringe support installation

Fit the ring (9). Fit the syringe support (11) and secure with two screws (49).

7.2.2.8 Syringe pusher installation

Fit the syringe pusher (12) on the tube and move it to the left. Fit the stops (13) on the tube.

Moving the syringe pusher to the right fit it on the stops (13). Connect the flexi-cables.

NOTE. Pusher reassembling always entails necessity of syringe force sensor calibration. Perform it at the final stage of pump reassembling prior to joining front and rear cases, since it may be necessary to adjust trimmer potentiometer R2 on the Drive Unit board.

Restore 16-way electrical connection between front and rear cases of the pump and put the cases vertically on the table as far apart as the length of cable allow.

Perform force sensor calibration procedure in accordance with the 4.3.3.

7.2.2.9 Syringe pusher drive installation

Turn the pusher lever to the position shown in the picture B. Gear tooths “b” and “c” should be placed so as to be in contact with a second groove of the rack bar “a” (see. Picture A).

Carefully insert the plastic screen (16) into the syringe pusher (12). Carefully fit the shaft (18) and the syringe pusher drive (15) on drive arm. Ensure the seal (48) between the syringe pusher (12) and syringe pusher drive (15) is correctly positioned. Secure the syringe pusher drive (15) with four screws (55,56).

7.2.2.10 Drive Unit board installation

Carefully insert the Drive Unit board (17) into the front case. Secure the retaining screw (64) and the retaining screw (63) using spacer (74). Connect all flexi-cable and cable connections.

NOTE. Drive unit board replacement entails necessity of syringe force sensor calibration.

Perform it at the final stage of pump reassembling prior to joining front and rear cases, since it may be necessary to adjust trimmer potentiometer R2 on the Drive Unit board.

Restore 16-way electrical connection between front and rear cases of the pump and put the cases vertically on the table as far apart as the length of cable allow.

Perform force sensor calibration procedure in accordance with the 4.3.3.

7.2.2.11 Syringe size sensor installation

Carefully insert the syringe size sensor (19). Secure with 2 screws (62). Connect the syringe size sensor (19) cable to the Electronic board (23). Perform syringe size sensor calibration procedure in accordance with the 4.3.1.


7.2.2.12 Syringe clamp installation

Fit the syringe clamp (20) and secure with the screw (59).

7.2.2.13 Keypad installation

Using isopropyl alcohol clean the case where the keypad will be positioned ensuring all old adhesive residue is removed.

Remove the protective film from the keypad. Insert the keypad K1 (25) flexi-cable through the appropriate case slot. Align the bottom edges and corners of the keypad K1 (25) with the recess in the case. Stick the keypad K1 (25) by pressing it firmly with a soft cloth, starting from bottom edge working to the top. Seal the keypad edges using silicon coating.

Insert the keypad K2 (26) flexi-cable through the appropriate case slot. Align the keypad K2 (26) with the recess in the case. Stick the keypad K2 (26) to the case as previously with keypad K1.

Seal the keypad edges using silicon coating.

Connect the keypad K1, K2 (25, 26) flexi-cable to the Electronic board (23).

7.2.2.14 Electronic board and Display unit installation

Fix the four standoffs (79) to display unit (22) using screws (64) and washers (76).

Fit the display unit (22) on the Electronic board (23). Connect all cables assemblies. Remove the protective film from the display.

Carefully insert the Electronic board (23) with display unit (22) into the front case. Fit the washers (77, 75), fix the five retaining screws (61) and connect all flexi-cables and cable connections to the Electronic board (23).

Perform syringe size sensor calibration procedure in accordance with the 4.3.1. Perform pusher position sensor calibration procedure in accordance with the 4.3.2. Perform force sensor calibration procedure in accordance with the 4.3.3. Perform date and time setting procedure in accordance with the 3.8.

7.2.2.15 SRAM installation

Fit the SRAM (24) on the Electronic board (23), following the orientation by the mark on the

SRAM case (24). Perform date and time setting procedure in accordance with the 3.8.

7.2.2.16 Syringe barrel sensor cover installation

Using isopropyl alcohol clean the case surface ensuring all old adhesive residue is removed where the syringe barrel sensor cover (28) will be positioned. Glue the syringe barrel sensor cover (28) using instant glue.


7.3 REAR CASE AND SUB-ASSEMBLIES

7.3.1 Removal instructions

7.3.1.1 Power supply unit and switching power supply removal

Remove the two battery cover screws (61), remove the battery compartment lid (43), disconnect the power supply unit (40) cable and withdraw the battery unit (42).

Remove the cable from the battery unit compartment. Disconnect the mains filter unit (37) and

12VDC & Nurse call unit (35) connection. Unscrew the nut (50) and disconnect power supply unit (40) grounding wire from the potential equalization connector. Remove the six power supply unit (40) retaining screws (61). Carefully withdraw the power supply unit (40) from the rear case.

Disconnect power supply unit (40) connection from the switching power supply (41). Remove the four switching power supply (41) retaining screws (53) and nuts (70). Remove the switching power supply (41).

7.3.1.2 Mains filter unit removal

Detach the mains filter unit (37) connector from the switching power supply (41). Remove the retaining clips screws (52). Carefully withdraw the mains filter unit (37) from the rear case.

7.3.1.3 12VDC & Nurse call unit removal

Remove the 12VDC & Nurse call unit (35) retainer screw, disconnect the 12VDC & Nurse call unit (35) cable from power supply unit (40) and withdraw the 12VDC & Nurse call unit (35). In order to detach strings of the RS232 connector cap (46) and 12 VDC&Nurse call connector cap

(47), unscrew the screw (69) with the nut (70).

7.3.1.4 RS232 connector unit removal

Remove the RS232 connector unit screws (51) and carefully withdraw the RS232 connector unit

(34).

7.3.1.5 Piezotransducer unit removal

The piezotransducer (30) is glued to the rear case. Using the small knife carefully remove the piezotransducer (30) from the rear case.


7.3.2 Fitting instructions

7.3.2.1 Piezotransducer unit installation

Clean the case surface where the piezotransducer (30) should be positioned. Glue the piezotransducer (30) using instant adhesive.

7.3.2.2 RS232 connector unit installation

Fit the RS232 connector unit (34) and secure with the screws (51).

7.3.2.3 12VDC & Nurse call unit installation

Fit the 12VDC & Nurse call unit (35) and secure with the retainer screw via washer (82).

Connect the 12VDC & Nurse call unit (35) cable into the power supply unit (40). Fix the strings of the RS232 connector cap (46) and 12 VDC&Nurse call connector cap (47) using screw (69) washer (75) and nut (70).

7.3.2.4 Mains filter unit installation

Insert the mains filter unit (37) into the rear case and secure with retaining clips screws (52) via washers (81) and fix the retaining clips (52). Connect the mains filter unit (37) connector to the switching power supply unit (41).

7.3.2.5 Power supply unit and switching power supply installation

Fix the switching power supply (41) to the supply unit (40) using four screws (53), nuts (70), spacers (74) and washers (78). Connect power supply unit (40) cable to the switching power supply (41).

Carefully insert the power supply unit (40) into the rear case. Fix the six retaining screws (61) and connect the mains filter unit (37) and 12VDC & Nurse call unit (35) connections. Fix the power supply unit (40) grounding wire to the potential equalization connector using nut (50) and washer (80). Insert the power supply unit (40) wire into the battery unit (42) compartment. Insert the battery unit (42) and connect the power supply unit (40) wire. Ensure that the seal (45) between the battery compartment lid (43) and the rear case is correctly positioned. Fit the battery compartment lid (43) and secure with the two screws (61). Perform battery calibration procedure in accordance with the 4.3.4.

7.4 Torque guide

The following list outlines the torque levels established during product manufacture. NOTE:

These values are for the first insertion of screws and fasteners. When selecting a torque for servicing activity, be aware that refastening will require slightly less torque than the initial manufacture.

Over-tightening of screws and fasteners can cause damage. The manufacturer cannot be held responsible for such damage caused.


Front Case Assembly:

Stage Description Component Description Part No Qty Established

Process

Torque

Secure Electronic board Screw ISO 7049 ST2,9x9,5-F-Z B1000219

Secure display unit Screw ISO 7045 M3x6 B1000041

5 40cNm

4 30cNm

Secure syringe clamp Screw ISO 7046 M2,5x10 B1000108

Secure syringe size sensor Screw ISO 7049 ST2,9x6,5-F-Z B1000217

Secure Drive Unit board Screw ISO 7045 M3x12 B1000050

Secure pusher drive

Secure syringe support

Screw ISO 7045 M3x6

Screw ISO 1580 M3x20



B1000041

B1000057

B1000059

B1000051

1

2

1

50cNm

40cNm

50cNm

1 50cNm

2 30cNm

2 30cNm

2 30cNm

Secure drive

Secure motor unit

Secure encoder ruler

Secure sensors unit

B6660032

Secure encoder unit

Secure barrel sensor

Rear Case Assembly:

Screw ISO 7049 ST2,9x9,5-F-Z B1000219

Screw ISO 7049 ST2,9x13-F-Z B1000220



Nut ISO 4032 M3

Screw ISO7045 M2x8

Screw ISO 7045 M3x8

Nut ISO 4032 M3

B1000123

B1000013

B1001030

B1000012

Nut ISO4032 M2 B1001010

Screw ISO7049 ST2,9x9,5-F-Z B1000219

B1000043

B1001030

Screw ISO7049 ST2,9x9,5-F-Z B1000219

1

2

2

1

40cNm

40cNm

1 40cNm

1 50cNm

50cNm

40cNm

1 40cNm

1 40cNm

1 40cNm

1 40cNm

1 40cNm

Stage Description

Secure power supply unit

Component Description

Screw ISO7049 ST2,9x9,5-F-Z

Part No Qty Established

Process

B1000219

Torque

6 40cNm

Secure mains filter unit

Secure RS232 connector unit

Secure switching power supply

Nut S5 (1KT0006)

Nut S4,5 (FCN770-A07)


L5555022

L5555023

B1000125

2 50cNm

2 50cNm

4 50cNm

Secure power supply unit grounding wire

Nut ISO 4032 M3

Nut ISO 4032 M6

B1001030

B1001060

4 50cNm

1 1Nm


Final Assembly:

Stage Description

Secure battery compartment lid

Secure Front Case to Rear case

Component Description Part No Qty Established

Process

Screw ISO 7049 ST2,9x9,5-F-Z B1000219

Torque

2 40cNm

Screw ISO7045 M4x10 B1000062 6 1Nm


8. ELECTRICAL SCHEMATIC DIAGRAMS, COMPONENT LOCATION DIAGRAMS

8.1. ELECTRICAL BLOCK DIAGRAM OF THE PUMP


8.2. ELECTRICAL SCHEMATIC DIAGRAM OF THE PUMP


ELECTRICAL SCHEMATIC DIAGRAM OF THE PUMP (CONTINUED)


ELECTRICAL SCHEMATIC DIAGRAM OF THE PUMP (CONTINUED)


8.3.ELECTRONIC BOARD SCHEMATIC DIAGRAM


ELECTRONIC BOARD SCHEMATIC DIAGRAM (CONTINUED)






8.4.ELECTRONIC BOARD COMPONENT LOCATION DIAGRAM


8.5.DRIVE UNIT BOARD SCHEMATIC DIAGRAM


8.6. DRIVE UNIT BOARD COMPONENT LOCATION DIAGRAM


8.7.POWER SUPPLY UNIT SCHEMATIC DIAGRAM


8.8.POWER SUPPLY UNIT COMPONENT LOCATION DIAGRAM


8.9.BATTERY MONITORING UNIT COMPONENT LOCATION DIAGRAM


41

42

43

44

45

46

47

48

49

50

51

52

53

55

56

16

17

18

19

20

11

12

13

15

22

23

24

25

9. MECHANICAL ASSEMBLY DRAWINGS AND PART LIST

9.1. PART LIST

REFERENCE PART DESCRIPTION

1

NUMBER

B6660024 Syringe barrel sensor

3

5

6

7

8

9

10

B6660026

B6670007

V8413101

B6290002

B6660032

B8247019

B6337021

Encoder unit

Motor unit

Motor belt

Encoder ruler

Sensors unit

Ring

Drive

B8126037

B6678003

B8074050

B6337019

B8110033

B6900002

B8280007

B6210004

B8127005

Syringe support

Syringe pusher

Syringe pusher support

Syringe pusher driver

Plastic screen

Drive Unit board

Shaft

Syringe size sensor

Syringe clamp

B6800002 Display unit

B3087044-01 Electronic board (without display unit)

V5202704

V6675047

SRAM

Keyboard K1

26

28

30

34

35

37

40

V6675048

B8703025

B6710007

B6680015

B6680016

Keyboard K2 (narrow)

Syringe barrel sensor cover

Piezotransducer unit

RS232 connector unit

12VDC&Nurse call unit

B6730007 Mains filter unit

B6340012-01 Power supply unit (without switching power supply)

V5500700

B6341001

B8178015

B6400001

V6300310

V5511152

V5511153

V6300312

B1000051

B1001060

L5555023

L5555022

B1000125

B1000059

B1000057

Switching power supply MPS30-12

Battery unit

Battery compartment lid

Versatile clamp

Silicon gasket (length 1.2m)

Cap RS232

Cap 12VDC&Nurse call

Silicon gasket (length 0.2m)


Nut ISO 4032 M6

Screw kit (FCN770-A07)

Retaining clips with screw kit (1KT0006)

Screw ISO7046 M3x16



QUANTITY

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

4

2

2


71

72

74

75

66

67

68

69

70

57

58

59

60

61

62

63

64

76

77

78

79

80

81

82

87

88

90

91

83

84

85

87

93

94

95

96

97

B1000220

B1001010

B1000108

B1000062

B1000219

B1000217

B1000050

B1000041

B1000013

B1000012

B1000121

B1000043

B1001030

B8917003

B1002010

V6300504

B1002020

V8947015

Screw ISO 7049 ST2,9x13-F-Z

Nut ISO4032 M2

Screw ISO 7046 M2,5x10

Screw ISO7045 M4x10

Screw ISO 7049 ST2,9x9,5-F-Z

Screw ISO 7049 ST2,9x6,5-F-Z


Screw ISO 7045 M3x6


Screw ISO 7045 M2x8


Screw ISO 7045 M3x8

Nut ISO 4032 M3

Damper

Washer ISO 7089

∅

2,2-140HV

Spacer SS6-2

Washer ISO 7089

∅

3.2-140HV

Washer

B8947028

V8947015

L5580040

B1002260

B1002220

B8947032

Washer

Washer ISO 7089

∅

3,2-7

Standoff TCBN-T1-M3-6-7

Washer DIN6798 – A6,4 Fst

Washer DIN6798 – A3,2 Fst

Washer

∅

12/18 thickness 0.3

Leg V6300400

L5555024

B8180123

Clip

Label (serial number)

B8180125-P01 Label (WARNING, syringes 10-140ml)

B8180227

B8180126

B8180127

B8180136

Label (WARNING, syringes 5-140ml)

Label (BAXTER LOGO)

Label (RS232)

Label (Do not disassemble)

B8180139

B8180152

B8180205

V8180082

V8180085

Label (instruction)

Label (clip)

Label (alignment)

Label (electrostatic)

Label (ground)


6

1

5

9

1

1

1

2

8

2

1

1

6

16

2

2

5

4

5

4

4

1

2

1

1

1

1

1

4

1

1

1

1

1

1

1

1

9.2 FRONT CASE ASSEMBLY

9.2.1 Syringe barrel sensor

9.2.2 Encoder Unit


9.2.3 Motor Unit

9.2.4 Motor belt


Motor belt (continuation)

9.2.5 Sensor unit B6660032


9.2.7 Drive

9.2.6 Encoder ruler


Drive (continuation)

9.2.8 Syringe support


9.2.9 Syringe pusher

Syringe pusher (continuation)


9.2.10 Syringe pusher drive

9.2.11 Drive Unit board


Drive Unit board (continuation)

9.2.12 Syringe size sensor


9.2.13 Syringe clamp

9.2.14 Display Unit


9.2.15. Electronic board

9.2.16.

9.2.15

9.2.16

9.2.17

9.2.18

Electronic board (continuation)


9.2.16. SRAM

9.2.17. Keypads


Flo-gard GSP Service Manual

9.2.18. Syringe barrel sensor cover

70

9.3 REAR CASE ASSEMBLY

9.3.1 RS232 connector unit and piezotransducer unit

9.3.2 Mains filter unit and 12VDC&Nurse call unit


Flo-gard GSP Service Manual

9.3.3 Switching power supply

9.3.4 Power supply unit

72

Power supply unit (continued)

9.3.5 Battery unit


Battery unit (continuation)


9.4. FINAL ASSEMBLY

Final assembly (continuation)





10. SPARE PARTS LISTING

10.1. SPARE ACCESSORIES

PART NUMBER

B8640037-01

(old B8640022-01)

B8640037-02

(old B8640022-02)

B8640037-03

(old B8640022-03)

Spacer (gauge) SP1

Spacer (gauge) SP2

Spacer (gauge) SP3

DESCRIPTION

B8640023

P322009

B6690006

Spacer (gauge) SP4

Digitron pressure meter, model: 2022P (0-1500 mmHg)

Flo-Gard GSP Firmware Upload Utility

Bootstrap Loading Unit

10.2. SPARE LABELS / PUBLICATIONS

PART NUMBER

BS036010EN

BN036011XX

B8180123

Service Manual Flo-Gard GSP Syringe Infusion Pump

Operator’s Manual Flo-Gard GSP Syringe Infusion Pump

Label (serial number)

DESCRIPTION

B8180125XX-P01

B8180227XX

B8180126

B8180127

B8180136

B8180139XX

B8180152



Label (BAXTER LOGO)

Label (RS232)

Label (Do not disassemble)

Label (instruction)

Label (clip)

B8180205 Label (alignment)

XX- language name codes:

Language name Code (XX)

Danish

Dutch

English

Finnish

DA

NL

EN

FI

French

German

Italian

Norwegian

Spanish

Swedish

Greek

FR

DE

IT

NO

ES

SV

EL


10.3. SPARE ELECTRICAL COMPONENTS

PART NUMBER

B6341001

B6340013-01

Battery unit

DESCRIPTION

Power supply unit (without switching power supply)

V5500700

B6730007

B6800002

B3087044-01

Switching power supply MPS30-12

Mains filter unit

Display Unit

Electronic board (without display unit)

B6660026

B6660032

B6900002

B6670007

B6660027

V6675047

V6675048

B6710007

V5570010

Encoder unit

Sensor unit

Drive Unit board

Motor unit

Syringe barrel sensor

Keypad K1

Keypad K2 (narrow)

Piezotransducer unit

AC power lead - European

V5570011

V5570013

V5570015

V5501041

V5501042

V5570020

AC power lead- UK

AC power lead- USA

AC power lead- Danish

Fuse F800mA

Fuse F2A

RS232 extension cable

B6650012

B6650013

V5430312

V5430213

V5430112

V5500202

Nurse call cable

12VDC cable

Red LED (D1)

Green LED (D2)

Yellow LED (D3)

Buzzer SMA-24 (Z1)

10.4 SPARE MECHANICAL COMPONENTS

PART NUMBER

B6678003 Syringe pusher

DESCRIPTION

B6337019

B6210004

V8413101

B8703025

B8127005

B8126037

B6400001

B6290002

Syringe pusher drive

Syringe size sensor

Motor timing belt

Syringe barrel sensor cover

Syringe clamp

Syringe support

Versatile clamp

Encoder ruler


B6337021

V5511152

V5511153

L5555024

B8280007

V6300400

Drive

Cap RS232

Cap 12VDC&Nurse call

Clip

Shaft

Leg


Baxter Flo-Gard GSP Syringe Infusion Pump Service Manual

Service Manual

Flo-Gard GSP

Key Features

Related manuals

Frequently Answers and Questions

What types of syringes are compatible with the Flo-Gard GSP pump?

What should I do if the pump malfunctions?

How do I calibrate the force sensor?

Baxter Flo-Gard GSP Syringe Infusion Pump Service Manual

Service Manual

Flo-Gard GSP

Key Features

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Frequently Answers and Questions

What types of syringes are compatible with the Flo-Gard GSP pump?

What should I do if the pump malfunctions?

How do I calibrate the force sensor?