Home

GRASEBY 3400 Infusion Pump Service Manual

1. Processor core SIMS Graseby Ltd VCC VCC DISPLAY O 13 li C32 DISPLAY 0 13 R67 R68 10K 47nF C33 pwa PATIENT DEMAND DISPLAY8 E CONTRAST 100R 100R GND DISPLAY9 R W 47nF IC12 DISPLAY11 CSIO GND D31 SENSE 0 4 29 _ 67 1 IC9 SENSE 0 4 BZVSSGSV2 22pF 84 DISPLAY10 A0 12 3 20 DO DISPLAY0 SENSE4 AN7 28 2 DISPLAY12 1 41 Ai o1 Di DISPLAYI SENSE3 AN6 R63 1 RE DISPLAY13 A2 A2 __10 15 02 DISPLAY2 SENSE2 AN5 GND La PA4 9 O7 D3 03 DISPLAY3 SENSE1 AN4 16MHz 4 8 P o4 L18 D4 D4 DISPLAYA SENSEO AN3 C28 68 79 PAG AB 7 19 D5 05 DISPLAYS GND O XTAL OC2 OC1 PA6 05 TXD 78 A6 6 20 _ 06 06 _ DISPLAY6 TXD p PAI OC1 PA7 06 66 5 21 D7 07 DISPLAY7 4XOUT A7 07 RXD 11 A8 27 RXD 10 9 A9 26 PH1 PBI A9 9 A10 A10 23 OUT al 8656 2 10K 4 PB2 A10 11 11 25 AIO MODA LIR PB3 A11 UE AI 4 A11 HANDSHAKE IN 5 ResB 10 70 12 6 A13 _ 28 21 MODB VSTBY PBS A13 5 Aid 39 A13 4 g 10K PB6 A14 15 3 jue ENABLE MOTOR PB7 A15
2. Ti 6 12 C4 R3 5 c1 R1 220P 1kV 220R 5 R4 22P 220R 220P 1kV 220R 4 10 IN2 3 C2 R2 47P 220R 2 1 SCREEN2 PWR XFMR NC 6 lt FBI 5 m 4 CNY17GF 4 2 FB2 Figure 4 11 Regulator circuit diagram overview MAINS OK DC OUT ESD GND ESD GND BATT BATT Regulator circuit Q 3 System HEADER 4 PL12 g 2 Battery 1 HEADER 2 3400 Service Manual Issue 6 July 00 4 21 Regulator live SIMS Graseby Ltd EMC Filter FS2 LIVE T500mA D7 W06G R20 V1 2 1 mM 2 lt e OUT1 e 2x47mH 120R 1A C10 A7uF 400V NEUTR
3. AAA one D18 D17 D16 D15 D14 x2 E gm 3 C31 _ 55 nsi GM0237 B Figure 7 7 Main board assembly 3400 Service Manual Issue 6 July 00 7 13 3400 Illustrated Parts List Figure 7 7 Main board assembly contd Item Description Part number Remarks R01 to R04 R27 R29 R30 R32 R39 R45 R46 R50 R55 to R60 R64 and R66 Resistor 10K 5 1 8 W 20 off R05 R33 R34 R35 R43 R44 R47 R53 and R54 Resistor 1K 5 1 8 W 9 off R07 RO8 and R51 Resistor 47K 5 1 8 W off R09 and R10 Resistor 150K 5 1 8W 2 off R11 Resistor 6R8 5 1 4 W R12 Resistor 910R 5 1 8 W R13 Resistor 100R 5 1 8 W R14 R15 R16 and R65 Resistor 10K 4 off R17 R36 and R37 Resistor 4K7 596 1 8 W 3 off R18 to R21 Resistor 470R 596 1 8 W 4 off R22 to R25 and R52 Resistor 1008 5 off R26 R28 and R31 Resistor 100K 195 1 8 W 3 off R38 Resistor 220K 595 1 8 W R40 Resistor 1208 5 1 8 W R41 Resistor 1K5 596 1 8 W R42 Resistor 100R 596 1 8 W R48 and R49 Resistor 11K 196 1 8 W 2 off R61 and R62 Resistor 478 5 1 4 W 2 off R63 Resistor 10M 5 1 8
4. 3000 SERIES PSU s 130 013 ISS D R10 E C8 R9T F Rei Fr GM0337 A Figure 4 15 Regulator board layout of components 3400 Service Manual Issue 6 July 00 4 25 Syringe size sensors board SIMS Graseby Ltd 1 6 1 5 Ay 12 4 1 9 SIZE M 4 PL1 3 10 2 OOOOOO O Q gt Q d GND 1 8 GM0338 A Figure 4 16 Syringe size sensors circuit diagram GM0339 A Figure 4 17 Syringe size sensors board layout of components 4 26 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Opto sensors board GUARD RAIL wp gt x Sa END OF TRAVEL DETECTOR OPTO1 VWs OCCLUSION DETECTOR 2 4 DRIVE ENGAGEMENT DETECTOR Note Cableform is hardwired L1 r e Figure 4 18 Opto sensors circuit diagram Q GQ N GM0340 A GM0341 A Figure 4 19 Opto sensors boar
5. 7 17 CHAPTER 8 BRAUN PERFUSOR CONVERSION Syringe conversion procedures 2 8 1 Introduction M Em 8 1 Nearly empty flag conversion 8 1 Spacer tube fitment a 8 1 Plunger clamp plate fitment 8 1 Reassembling 6888 L Lu ae aS 8 1 Braun Perfusor selection 8 1 P label fitment 8 1 Selecting various syringe brands 8 2 Mechanical procedures 8 2 Programming 0 8 2 APPENDIX FITMENT OF NEW MODIFIED SIZE SENSOR FLAG rear of manual Introduction ere A 1 un en A 2 Caution erie A 2 Opening the case a A 2 Removal of old SSF a A 2 Heassembly nsn sand diiit A 3 Final testing nensem ea etai A 3 Setting the Size Sensor 4 3400 Service Manual Issue 6 July 00 Page vii Contents SIMS Graseby Ltd LIST OF FIGURES Figure Page 1 14 Front view of the 3400 pump eee 1 2 2 1 Thrust measuring set up u 2 7 4 1 Overall block diagram of th
6. 5 10 Front and or rear case 5 10 CHAPTER 6 FUNCTIONAL TESTS Introduction econ ieee cem E eects eens 6 1 Plunger clamp alarm 6 4 Ramp check 6 4 Linear aCcCUracy eee tete p 6 5 Test procedures 6 5 Plunger clamp alignment 2 6 5 Test procedures 6 5 Page vi Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Contents CHAPTER 7 Page ILLUSTRATED PARTS LISTS Gen ral assembly ua a l u nb uu G G haasi A eiA 7 1 Plunger clamp and half nut assemblies 7 6 Pole clamp assembly non rotating 7 7 Pole clamp assembly rotating 7 8 Leadscrew assembly 2 7 9 Opto sensors board assembly 7 10 Size sensors board assembly 7 11 Main board assembly 2 21 7 12 Regulator board assembly 7 15 Distribution board assembly
7. AC power failure Battery voltage IOW Self tests pump malfunction Drive disengaged or syringe not fitted Syringe sizing system Software Design methods SIMS Graseby Ltd Page iv Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Contents CHAPTER 4 CIRCUIT DESCRIPTIONS Page Introduction 2 a ee te e ie e 4 1 Main board circuit ss anata a eee ee decent 4 2 ote anne 4 2 Processor core circuit 1 14 1 4 24 42 4 2 Description ee reete e tete 4 2 Motor interface circuit description 4 3 ree 4 3 Motor current control a 4 3 Transients suppression 4 3 Motor speed control 4 3 Power control circuit 21 222 4 4 Logic circuit supply 4 4 RAM and clock supply 4 4 Sensors interface circuit 1 4 4 Introduction
8. 4 27 4 20 Umbilical board layout of components 4 28 4 21 Membrane switch 4 29 4 22 Internal ribbon cable and D connector connections 4 30 7 1 Generalassembly a 7 3 7 2 Plunger clamp and half nut assembly 7 6 7 3a Pole clamp assembly non rotating 7 7 7 3b Pole clamp assembly rotating a a 7 8 7 4 Leadscrew 7 9 7 5 Opto sensors board 7 10 7 6 Size sensors board 7 11 77 Main board assembly u 7 13 7 8 Regulator board 7 16 7 9 Distribution board assembly 1 7 17 8 1 Braun Perfusor conversion parts required 8 2 New modified Size Sensor A 1 A 2 Order of tightening the case screws A 3 Size Sensor Flag general details A 4 Page viii Issue 6 July 00 3400 Service Manua
9. a rere et eee a ae 5 3 Renewal of fuses demon dr e d a 5 3 Regulator board renewal 422 4 5 4 Main board renewal U 5 4 Displacement of the Umbilical board tray 5 4 Umbilical board renewal u 5 5 Opto sensors board renewal 5 5 Plunger clamp and super nut assembly renewal 5 5 Pole clamp renewal 5 6 Leadscrew assembly 5 6 Removal awata GE NER 5 6 Re eWal 5 7 Releasing the spring pressure 5 7 Case assy and 5 7 Motor and gearbox assembly renewal 5 7 Occlusion clutch and disc assy renewal 5 7 Membrane switch panel 5 8 Super nut renewal a 5 8 Syringe size sensor board 5 9 Plunger clamp 5 10 Batteries Checks and replacement
10. 4 4 Circuit description u un sassa upan uma 4 4 85232 Interface circuit 2 2 42 4 5 Circuit description a ua a nennen 4 5 Input output circuit a 4 5 Front pa eliiniofage uu R u a ua a 4 5 EED ua S un 4 6 Real time 4 6 Liquid crystal display 2 4 6 SOUMGE Vaasa ade E 4 6 Regulator board circuit u 4 7 Intr ducti n Rc 4 7 Live circuit and T1 primary description 4 7 T1 secondary iei 4 7 Batteries CIrCUlt Cer eye ed eie 4 7 Overvoltage protection 4 8 Plug PLT1O0nIp lS uuu cieli in tom eene 4 8 Setting RVT eed ee ys edocet rae as 4 8 Size sensors and board 2 2 242222 2 4 9 Opto sensors and board 11 4 4 2 444 4 9 Umbilical board 2 2 4 9 Umbilical cable connector 4 9 3400 Service Manual Issue 6 July 00 Page v Contents SIMS Graseby Ltd CHAPTER 5 FAULT CODES CLEANING AND REPAIRS Page Fault codes oed o tein ep C id i c 5 1 Cleaning pe uen dee et bend ex tees 5 3 Repair procedures 1 4 4 2 5 3
11. 1ESD GND IN2 e e e e BATT GM0335 A Figure 4 13 Regulator isolated circuit diagram 3400 Service Manual Issue 6 July 00 4 23 Main board components R46 R44 R45 132 011 155 R19 C34 GM1130 A R15 i Figure 4 14 Main board layout of components Issue 6 July 00 R35 C19 SIMS Graseby Ltd 3400 Service Manual 4 24 SIMS Graseby Ltd Regulator board components
12. 2 5 3400 Service Manual Issue 6 July 00 Page iii Contents CHAPTER 2 contd Disassembly and assembly of casing Taking the casing apart Assembly ete Occlusion measurements Thrust measurements Syringe Thrust Thrust adjustments CHAPTER 3 FUNCTIONAL DESCRIPTIONS Introduction Drive system eee dtl nies DC motor and leadscrew Id o oi Toggle mechanism PIUungerelampb s saa a u Su mua Occlusion sensing system Clutch assembly and opto sensor Occlusion detection Electro mechanical control system Motor Speed eni cepe gd eben Mechanical characteristics Sensing alarm systems etre rts Syringe nearly empty End of infusion occlusion
13. 4 16 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Main board input output KEYBOARD DISPLAY 0 13 P DISPLAY O 13 111 HEADER12 123456789012 DCSW VDD LCD1 DISPLAYO R23D 5 4 1008 9 5 POWERON DISPLAY1 R23C 6 3 1008 10 E n MAX4391CSA DISPLAY2 R23B 7 2 100R 11 1 8 DISPLAY3 R23A 8 1 1008 12 5 2 EN P R16B 7 2 10K 4 DISPLAY4 8240 5 4 1008 13 DBA c2 R16D 5 4 10K DISPLAYS R24C 6 3 100R 14 DB5 2 LBD VREF 7
14. Ay UM de 55 UMS UM9 MOTOR2 5 UM4 UM3 UM7 MOTORS MOTOR d 4 80 M m MOTOR 4 DRIVE GNDO 4 2 1 5 DMI 45 UM3 MOTOR5 HEADER 13 2 UM1 MOTOR6 ds NNCONN O 26 HEADER 7 PL3 UM19 DCSWO 5 UM17 OPT1 UM15 OPT2 cla SENSORS UM20 OPTDRVO as T GND 6 PATIENT 5b PCA UM4 HEADER 6 DEMAND 25 SWITCH 1 PL7 DCSW 1 HEADER 3 UM19 OPTO O2 SYRINGE UM17 OPTI 5 SIZE GND UM15 OPT2 4 SENSOR UM18 OPTDRV1 Ae GND O o6 HEADER 6 PL2 UM6 SER GND 2 RI E 5 PL6 UM10 CTS g SERIE P V G UM16 IB d5 PORT POWER VIN UM8 RTS SUPPLY 3 UM14 RD UM12 DSR B DCD 8 HEADER 4 S GND 910 HEADER 5X2 GM0332 A Figure 4 10 Umbilical board connections diagram 3400 Service Manual Issue 6 July 00 4 19 SIMS Graseby Ltd 4 20 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd PL1 LIVE Circuits see Fig 4 12 SPADE PL2 NEUTRAL MINI LIVE SPADE GM1129 A NEUTRAL OUT2 OUT1 BOOT1 BOOT2 SCREEN1 SENSE1 SENSE2 Isolation Components ISOLATED Circuits see Fig 4 13
15. Stiction for a syringe varies from brand to brand as well as from batch to batch Stiction can be as low as 0 1 kg and as high as 2 kg The stiction of some syringe brands has been found to be particularly high Stiction can also vary along the plunger travel and is usually lowest in small diameter syringes Using a sample syringe and allowing for a safety margin for sticky syringes adjustments can be made by measuring the thrust generated If the stiction characteristics of a syringe are known then by using the formula given above the occlusion thrust can be set Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Occlusion thrust Thrust The thrust checks that are detailed below use the weights that correspond to the factory set checks occlusion threshold levels for a 3400 i e 5 7 and 6 2 kg different occlusion level setting is required then the weights will have to be adjusted accordingly The thrust adjustment procedures are detailed on page 2 8 1 Setthe pump s plunger clamp to approximately midway along its support tube 2 Remove the plunger from a BD 60 ml syringe and then saw the end off the syringe see Fig 2 1 Place this modified syringe onto the pump so that it will act as a guide for the weight support rod and also position the size sensor flag 3 With the pump switched set the infusion rate to 200 ml hr 4 Place the pump in a vertical position with its left hand side uppermost see Fig 2 1
16. 1 6 Issue 6 July 00 3400 Service Manual CHAPTER 2 CONFIGURATION amp DIAGNOSTICS MODE AND THRUST ADJUSTMENTS 3400 ANAESTHESIA SYRINGE PUMP Configuration diagnostics and thrust adjustments SIMS Graseby Ltd Configuration mode CHAPTER 2 CONFIGURATION amp DIAGNOSTIC MODE AND THRUST ADJUSTMENTS WARNING The Configuration Mode must only be used by personnel who have been appropriately trained in using the 3400 The Configuration mode allows various parameters to be made available which in turn allows various settings within these parameters to be set to the values required for the infusion The list shown below shows each parameter within the Configuration mode and each parameter is further detailed in the sections that follow 1 Syringe brand 2 Display language 3 Bolus 4 Preset bolus 5 Mass units 6 LCD contrast T Baud rate 8 Max rate 3400 Service Manual Issue 6 July 00 2 1 Configuration mode SIMS Graseby Ltd Calling up the Configuration mode Changing an option Moving to the next parameter With the AC power connected and switched on or under internal battery power press the ON button The pump will carry out its self tests and will then be in its set up mode Press the second A button from right and the BOLUS button simultaneously ie pressA A andBOLUS simultaneously The display will show the following question CONF
17. the rotation of the slotted disc used for detecting an occlusion ifthe syringe is nearly empty The syringe size sensors board and the opto status sensors board are detailed on page 4 9 Circuit Q14 Fig 4 6 activates the size sensors LEDs description Q15 activates the opto status sensors LEDs The software determines which of the two transistors is active at a given time R59 R60 R61 and R62 are current limiting resistors The opto detection circuit uses R56 to R58 as pull up resistors and uses R52Ato R52D R53 and R54 as current limiting resistors Zener diodes D22 to D24 are used for electrostatic discharge protection When a photo transistor detects the LED associated with it the line OPTO 0 1 or 2 will be pulled low this signal is then input to the processor via SENSE1 2 or 3 respectively 4 4 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Communications RS232 When SENSEO is low it indicates that the mains supply is present R50 R51 R55 and Q13 enable the processor to detect the presence or absence of the AC supply R48 R49 and C27 act as the low battery voltage sensing circuit R48 and R49 act as a potential divider enabling the voltage between them to be input to the A to D converter on the processor 85232 Interface circuit Warning Circuit description Only items of equipment that conform to EN60950 may be connected to the 9 pin RS232 connector that is situated at the rear of t
18. Table 5 2 Front case spares kit ses mmm sees _ Front case spares kit 0132 0101 Case front 0132 0099 Syringe clamp assembly 0131 0149 Button moulded 0131 0216 Instruction leaflet 0131 0156 Size sensor flag spares kit 0137 0025 Foam spacer type 3 0131 0218 Case templates 0131 0235 Radius gauge 0131 0234 Case screws 6 off 5001 0345 Note 2 off See table 5 3 2 off 2 off Stainless steel 4 12 pozi pan The Front panel label membrane will be Country dependent and can be supplied e g 0132 0007 English Table5 3 Size Sensor Flag spares kit Description Size sensor flag spares kit Size sensor flag Size sensor shim 0 6 mm thick Size sensor shim 1 0 mm thick Size sensor shim 1 2 mm thick Size sensor shim 1 4 mm thick Opto moulding Screws No 4 x 5 8 ins Self tap Grub screw x 6 nylon Tamper proof protective cap Instruction leaflet 0137 0025 0132 0090 0130 0107 0130 0108 0130 0190 0130 0185 0130 0024 5017 3410 0130 0144 0131 0136 0131 0217 Table 5 4 Rear case spares kit Description Rear case spares kit 0132 0104 Case rear 0132 0100 Foam spacer type 1 0131 0204 Foam spacer type 2 0131 0205 Rubber feet 0126 0028 Instruction leaflet 0131 0156 Case screws 6 off 5001 0345 These items may be obtained individually Note 4 65 mm thick 2 off 3 off 2 off 4 12 pozi pan The Case rear label will be Country dependent and can be
19. 5 Place the weight support rod through the modified syringe and onto the pump s plunger clamp 6 Place a weight of 5 7 kg on top of the weight support and check that the pump operates for at least 30 seconds and does not occlude i e the alarm does not sound Remove the weight 7 Place a weight of 6 2 kg on top of the weight support and check that within 30 seconds the pump does occlude i e the alarm sounds ME n WEIGHTS 2 WEIGHT SUPPORT SYRINGE BODY MODIFIED SYRINGE BARREL CLAMP MID WAY POINT __ i SYRINGE SIZE SENSOR SYRINGE PLUNGER CLAMP WORK SURFACE _ GM1133 A Figure 2 1 Thrust measuring set up 3400 Service Manual Issue 6 July 00 2 7 SIMS Graseby Ltd Thrust Ifthe occlusion thrust requires adjustment then the following procedures will have to be car adjustments ried out 1 Switch the pump off and disconnect the AC supply 2 Take the casing apart as detailed on page 2 5 3 If necessary rotate the leadscrew to reveal the grub screw that is located on the occlusion adjusting nut Loosen the grub screw with a 1 5 mm hexagonal key 4 Alterthe setting of the occlusion adjusting nut as necessary One full turn of the adjusting nut using a 5060 ml syringe gives approximately 2 73 kg 369 mmHg of adjustment Rotating the adjusting nut in order to decrease the tension on the leadscrew spring will decrease the pump s occlusion setting
20. IN AN EMERGENCY CONTACT SIMS GRASEBY SIMS Graseby Limited Colonial Way Watford Herts UK WD2 4LG Tel 44 0 1923 246434 Fax 44 0 1923 231595 Web www graseby co uk lt q SMITHS INDUSTRIES SHS Medical Systems PRINTED ON RECYCLED PAPER Part No 005 0132 Issue 6 July 2000 SIMS Graseby Ltd 2000
21. 04 LED red 3 mm D5 D6 D12 D19 and D26 to D29 Diode rectifier 8 off D7 Diode rectifier D8 to D11 D25 Diode rectifier 5 off D13 to D18 and D22 to D24 Diode Zener 9 off D20 Diode Zener D21 Diode Zener IC01 IC MC74HC164D Motorola IC02 Regulator MAX4391CSA 1003 IC S M 74HCOOD IC04 IC Volt Reg 5 V Maxim 05 IC MC14093BD Motorola 06 op 07 MAX232CWE Maxim 08 HM62256LF10 Hitachi 09 EPROM 27 1001 10 MAX691ACSE Maxim 11 DS Dallas 1202 S 12 MC68HC11K1CFN4 101 Inductor 220 uH L02 Inductor 1 mH L03 Inductor bead PLO1 Header 2 way PL02 Header 12 way PL03 Header 26 way dual row 001 to 007 009 Q11 and Q13 to Q15 Transistor 12 off Q08 and Q10 Transistor 2 off Q12 Transistor 12 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd 3400 Illustrated Parts List SSI 110 261
22. 4 10 routes data between each of the other boards within the pump and transfers this data to the umbilical ribbon cable connector Umbilical cable connector The umbilical ribbon cable connector Fig 4 9 enables data and the circuit power supplies to be sent between the Main board and the Umbilical board The Umbilical board is situated on the rear case moulding This method of design means that only the ribbon cable and the batteries connector link the two case halves thus facilitating when required ease of servicing 3400 Service Manual Issue 6 July 00 4 9 Overall block diagram MOTOR RS 232 see Fig 4 22 OPTO SENSORS BOARD see Figs 4 18 amp 4 19 UMBILICAL BOARD CONNECTIONS see Fig 4 10 and 4 20 PLI SYRINGE SIZE SENSOR BOARD see Figs 4 16 amp 4 17 NOT USED PL11 REGULATOR P 2 BOARD CELL1 see Fig 4 11 p2 4 12 4 13 4 15 BLK RECHARGEABLE BATTERIES ANd CELL2 CELL3 GM1120 A SIMS Graseby Ltd SOUNDER DISPLAY MAIN BOARD see Figs 4 2 to 4 8 and 4 14 PL3 MEMBRANE SWITCH PANEL see Fig 4 21 AC INPUT POWER Figure 4 1 Overall block diagram of the 3400 system 4 10 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Main board block diagram MOTOR INTERFACE see Fig 4 4 POWER CONTROL see Fig 4 5 POWER ON MO
23. R15B 7 2 10K DISPLAY6 R24B 7 2 100R 15 DB6 10uF R15D 5 4 10K 4 DISPLAY7 R24A8 1 _ 1008 16 DB7 DCSW G Ri4B 7 2 10K o 3 N 5 p LX 0 5 81405 4 10K DISPLAY8 R25A 8 1 100R 8 17 KEYBOARD O 5 DISPLAY9 R25B 7 2 100R 7 ES EDT c9 DISPLAY10 R25C 6 3 1008 6 Di ED 18 KEYBOARDO R14C 6 10K 1 CSK 22pF T KEYBOARD1 8 1 10K 4 DISPLAY11 2 CSB 4 d KEYBOARD2 R15C 6 3 10K m DISPLAY12 220uH R15A 8 1 10K 4 DISPLAY13 KEYBOARD4 R16C 6 3 10K 4 30 009 GND c D7 KEYBOARD5 R16A 8 1 10 m IC3A 10uF a R13 BYD77A D13 014 015 Di6 017 018 I 100R A A A A A 74HC00 GND R10 IC3B RM Run 8250 6 5 4 R9 6 X BZV55C6V2 11213 4 GND nee de 2322 642 62104 150 1 1008 74HC00 e Q5 BCW32 Re IC1 7 6 5 1 3 D8 D5 47K IO DATA 2 n IC3C w C8 47nF ac 4 D9 9 a R4 BAS32 10K D1 IO CLR gt 2 4 10 D6 6R8 8 ck Li _ GND Hz 12 D11 74HC00 b d 9 18 BAS32 IC3D 4 X BAS85 47nF CONTRAST i1 ND CONTRAST 13 C5 GND 74 00 47nF GND R6 FITTED R5 ON LATER MODELS 1K DCSW vac 47nF 86 6KB e R17 D4 D3 02 01 94 k 4 k 4 4 BCW32 SOUND RED GREEN WYELLOW YELLOW R12 4K7 i 910R GND R18 R19 R20 R21 012 470R 470R 470R 470R DIRECT SOUND R1 R2 BAS32
24. Rotating the adjusting nut in order to increase the tension on the leadscrew spring will increase the pump s occlusion setting 5 Tighten the grub screw 6 Temporarily assemble the two halves of the pump being careful not to trap any leads 7 Carry out the thrust checks detailed page 2 7 8 In order to obtain the thrust required it may be necessary to repeat steps 2 to 7 above 9 Finalise the assembly of the pump casing see page 2 5 10 Carry out tests No 9 and 10 detailed in the functional test procedures see page 6 3 2 8 Issue 6 July 00 3400 Service Manual CHAPTER 3 FUNCTIONAL DESCRIPTIONS 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd Functional descriptions Introduction Drive system DC motor and leadscrew Processor Toggle mechanism Plunger clamp CHAPTER 3 FUNCTIONAL DESCRIPTIONS This Chapter explains how the 3400 operates Reading this chapter will help a technician to rectify any possible faults that may occur within the pump The functional descriptions of the pump may be divided into five separate areas and each of these functional descriptions have been detailed separately in the descriptions that follow Drive system Occlusion sensing system Electro mechanical control system Sensing alarm systems Software The motor gearbox leadscrew and associated components see Fig 7 1 are mounted on a glass reinforced polycarbonate casing The strength of thi
25. and also for various setting up and repair procedures These procedures are detailed in Chapters 4 and 5 1 GM0595 B Disconnect the AC power connector and utilising a scratch free flat surface turn the pump over in order to gain access to the base of the pump Undo and retain the six screws that hold the two halves of the pump casing together One of the six screws is situated in a channel in the rear cover Place the pump upright and from the top carefully ease the two halves of the casing apart taking care not to put any strain on the internal connecting cable looms that form a hinge between the two halves of the casing Each time the casing has been taken apart and reassembled the syringe size functional tests detailed on page 6 1 must be carried out Being careful not to trap any leads assemble the casing by reversing steps 2 and 3 detailed above ensuring that the two case halves have snapped together and that the front and rear mating edges are equal and parallel The screws should be tightened to a torque of between 70 and 75 cNm and in the order shown in the diagram below 3400 Service Manual Issue 6 July 00 2 5 Occlusion thrust Occlusion measurements Thrust measurements Syringe stiction SIMS Graseby Ltd The two most frequently used methods to measure the point at which an occlusion occurs are the thrust and pressure methods At the present time SIM
26. 4 plunger clamp test Plunger This assembly Fig 7 2 is held in place by a narrow spring a circular guide tube and two clamp and clamp brackets that retain the square lay shaft Page 5 8 details the procedures for renewing super nut just the super nut assy renewal 1 Open the casing as detailed on page 2 5 2 Displace the Umbilical board tray see page 5 4 3 Unhook the top of the retaining spring from the syringe size sensor lever arm 4 Remove and retain the three screws from the two clamp brackets that hold the square lay shaft in place see Fig 7 1 and 7 2 Remove and retain the two brackets 5 Carefully easing out the flag from its housing lift up the square lay shaft and toggle mechanism contd 3400 Service Manual Issue 6 July 00 5 5 Repair procedures Pole clamp renewal Leadscrew assy renewal SIMS Graseby Ltd Lift the two guide tubes off their respective seating then remove the plunger clamp super nut and lay shaft assembly Fit the new assembly by reversing the steps 2 to 6 detailed above and then close the casing as detailed on page 2 5 Carry out the thrust checks and plunger clamp checks adjustments as detailed on page 2 7 and 6 3 respectively Remove and retain the two screws that are inserted through the securing plate into the base of the pump see Fig 7 3 Remove the faulty pole clamp assembly Fit the new assembly by replacing and tightening the two screws through
27. 47nF 1K R40 120R UM O 26 UM O 26 GM1123 A 9 GND GND Figure 4 4 Motor interface circuit diagram 3400 Service Manual Issue 6 July 00 4 13 Power control SIMS Graseby Ltd VIN IC5D 12 11 e 13 4093B jum 100 vss 06 BCW32 VDD C12 T Ky 47nF D20 a 15 04 vss R26 021 a TSCO5 100K 47nF GND VDD D19 BAS32 VIN IC5A POWER ON 1 R30 5 VDD 6 3 3 5 ODCSW i Jere Q8B LM2951AZ 5 0 R27 4 91995207 4093B 10K 10uF 1 3 e o VDD GND vss o 2 C14 C10 js Tee m 10K C13 100uF GND 47nF GND POWER OFF GND GND nes pus 4093B C15 4 100K 10uF T I e e e e GND VSS 4093B IS POWERED FROM VDD AND VSS Figure 4 5 Power control circuit diagram 4 14 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd DCSW R48 11K VOLTAGE SENSE74 VCC R49 C27 11K
28. 47nF VAC R R51 10K 47K GND AC SENSE6 Q13 BCW32 R50 10K e GND VCC e R56 R57 R58 10K 10K 10K UM19 OPTO 7 P9 g SENSE5 100R 100R UM17 OPT1 4 4 SENSE4 100R 100R UM15 OPT2 Eos R54 SENSE3 1K 1K UM20 OPTDRVO 022 023 024 UM18 OPTDRV1 BZV55C6V2 BZV55C6V2 BZV55C6V2 M 0 1 UM O 26 UM 0 1 e GND R59 014 CTL1 10K BCW32 R60 Q15 OPTO CTLO 10K BCW32 D26 D28 BAS32 R61 BAS32 R62 47R 47R 027 029 32 BAS32 e 6 GM1125 A GND Figure 4 6 Sensors interface circuit diagram Sensors interface 7 SENSE 0 7 3400 Service Manual Issue 6 July 00 4 15 Communications RS232 TXD HANDSHAKE OUT RXD HANDSHAKE IN GND GM1126 A LL L VCC C22 47nF 1 6 IC7 1 4 1 VCC C2 C24 gt C23 3 quic s e 2 v v 8 R43 1K 11 THIN T1OUT 14 UM16 TXD R44 1K 10 T2IN T2OUT 7 UM12 DSR R45 10K 12 R1OUT PAIN 13 UM14 RXD R46 10K 9 ReoUT R2IN B UM10 CTS GND 4 MAX232CWE 5 25 C26 F 1uF L3 100nH e e e UM6 SER GND 10V R47 1K UM8 RTS Figure 4 7 Communications RS232 circuit diagram UM 0 26 SIMS Graseby Ltd 9 10 261
29. A15 VCC 16__2 16 MOTOR SENSE cu 709 Q 44 van PCODO 25 00 30 A7 We 3 en PC1 D1 57 Do A18 MOTOR DRIVE 5 RL PC2 D2 55 S 32 nd GND PC3 D3 5e D4 24 m PA1 GND 10K 10K 4 04 65 D5 FAS OPTO CTLO icio PCS DS 5 CTL1 DIRECT SOUND ie T 6 06 es 56 2150 AT29C040 5 VBAT RESET RESET PC7 D7 VOUT RESET 35 i 5 D25 PDOIRXD 7 TXD 74HC14 BATT ON PD1 TXD PDZ 6 PD2 MISO 5 LOW LINE PD3 MOSI NM PASOS XIRQ PD4 SCK 78 PWS lt SOUND B OSC IN WDO vet PD5 SS 2 OSC SEL wo Q _ 54 42 PEO C35 8 PEO ANO GND 13 41 PE1 10 11 DO CE IN PE1 AN1 A0 v DO 12 40 2 47nF AL 9 12 DI CE OUT PE2 AN2 A C Di 39 AN3 A2 8 13 D2 vce 9 38 7 AM a 02 15 D3 PFI PE4 AN4 D3 KEYBOARD O 5 C39 10 SE 12 37 AN5 GND 4 6 16 D4 PFO PH0 PW1 PE5 AN5 A4 D4 PHI 13 pHi PW2 5 5 A5 ps Z D 7 MAX691ACSE PW3 14 35 AN7 AG 4 18 D6 KEYBOARDI0 5 n e PH2 PW3 PE7 AN7 S 6 06 9 5 PH3 PW4 AT D7 GND CSIO 16 Fri s AO A8 25 GND 5 17 52 A1 A9 24 PE0 KEYBOARDO 18 PH5 CSGP1 s O A A9 PH6 CSGP2 PF2 A2 A10 19 praag 50 A3 Aii 23 Al PE1 KEYBOARD1 PFA Aa 49 M 2 2 A12 48 A5 A13 26 PE2 KEYBOARD2 PF5 A5 A13 C34 Preas A6 1 46 AT PAS KEYBOARD3 IC15A PF7 A7 _ 47nF 0 Cs 1 2 33 A13 PA4 KEYBOARD4 PG0 XA13 GND IC11
30. Membrane The Membrane switch panel has an adhesive backing that enables it to be fixed to the top of switch panel the front casing Do not bend the new Membrane switch panel or its flexible cable loom renewal 1 Open the pump casing as detailed on page 2 5 2 Displace the Main board by removing and retaining the six pan head fixing screws Disconnect the switch panel ribbon cable connector PL2 from the right hand under side of the Main board this is a non locking connector 3 Starting by lifting a corner peel the faulty switch panel away from the case Pull the loose connector out through the front casing slot and remove the faulty switch panel 4 Remove traces of old adhesive from the front case recess a cloth lightly dampened with white spirit may be used 5 From the top of the new switch panel peel back the protective paper backing as far as the top of the display window 6 Push the connector and flexible lead of the new switch panel through the slot in the case 7 Align the top edge and sides of the panel with the top and sides of the case recess Gently rub the top edge of the switch panel to adhere it lightly to the case and then remove the remainder of the protective backing paper 8 Working from the top downwards and using light pressure lay the panel into the case recess 9 When the switch panel is positioned correctly into the case recess i e no over hanging edges use a soft cloth to rub the panel firmly down pushin
31. PGTXA14 32 22 16 31 15 5 KEYBOARDS VCC PG2 XA15 3 30 A16 27 xi PG3 XA16 WE IC15B 29 A17 GND 3 4 5 4 7 28 IC8 e 5 _ 2 PG5 XA18 14 27 62256 SCLK PGS 55 RW 32 768KHz 5 PG7 RW PH5 IC15C yo TCI MODULE BYPASS 5 6 RST 9 DS1202S 65 E IO_CLK IC15E 11 10 IO GND MC68HC11K1FN R65D POWER OFE 5 2 10K GM0324 A Figure 4 3 Processor core circuit diagram 4 12 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Motor interface DCSW VIN O e R33 Q12 4 3 WK BCW30 E Q10B c21 SI9952DY 10 uF 56 10uF 47nF e e R36 4K7 R42 MOTOR DRIVE 1008 L2 MOTOR6 MOTOR 1mH R37 4K7 8 7 R34 010 1K aii 2 SI9952DY BCW32 1 e e e el GND ENABLE MOTOR 2 S199520 voc 1 ab R39 R67 gt 4K7 10K R38 220K GND O o O VCC IC6 1 R74 8 43 10K 6 MOTOR SENSE m OPTO COLLECTOR ICL7611 4 VCC _ R74 MOTOR4 UM5 ORTO 47nF GND 10K GND Q9 BCW32 C19 R41
32. W 2013 7560 R67 Potentiometer 4K7 X1 Crystal 16 MHz X2 Crystal 32 768 kHz RTI Thermistor NTC 100K 7 14 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd SIMS Graseby Ltd Figure 7 8 Regulator board assembly AC Power 3400 Illustrated Parts List Item Description Part number Remarks Note the Regulator board assembly Fuse cover FS1 Fuse 500 5 x 20 UL BUSSMANN S500 FS2 Fuse 5 x 20 FS3 Fuse 2A 5 X 20 mm UL BUSSMANN S500 items below are for reference only and are not avail PSU Fuse shield RF Screen assy Heatsink Screw M3 x 8 pozi pan head 2 off Nut M3 hex 2 off Insulating bush 2 off Insulating washer 2 off Washer crinkle 2 off Pin terminal 2 off Transformer T1 AC power Q1 Tran thyristor 5 200 V Q2 BC184L Q3 BUZ80 PL1 and PL2 Tab spade 2 off PL11 Header 4 way PL12 Header 2 way C1 22 pF 2 100 V C2 47 pF 2 100 V C3 and C4 220 pF 2 off C5 Not used C6 2 2 63 V Elec 1000 pF 10 V C8 1 0 nF 1096 100 V C9 1nF 10 100V C10 47 400 V Elec C11 10 nF 63 V C12 10 nF 10 100 V C13 1 pF 20 25 V C14 100 nF 250 V D1 and D5 Schottky 11DQ10 2 off D2 Zener 13 V 596 1 3 W D3 Schottky 7 5 A45 V 04 TL431CLP D6 Zener 13 V 5 5 W D7 Bridge rect 1 5A 600 V D9 Zener 6v2 596 IC1 HV9120P IC2 Optocoupler CNY17F 3 L2 Ind 2X47MH RV1 Potentiometer 470R R1 to R4 a
33. able to infuse at up to 200 ml h Thus the Configuration MAX RATE setting can be used to control in preset steps both the continuous infusion up to 400 and the bolus infusion up to 1200 ml h Table 2 1 Syringe size and maximum automatic continuous infusion rate Syringe size Max auto cont infusion rate ml h 50 60 400 30 35 400 20 400 10 200 5 100 3400 Service Manual Issue 6 July 00 2 3 Diagnostic mode SIMS Graseby Ltd Diagnostic WARNING mode The Diagnostic mode must only be used by appropriately qualified personnel The 3400 has been designed so that the Diagnostic mode parameters will only be available if a set sequence of pump buttons are pressed Calling up With the AC power connected and switched on or under internal battery power press the the Diagnostic ON button The pump will carry out its self tests and will then be in its set up mode mode Press the second A button from right and the ALARM button simultaneously ie press A A A andthe ALARM button simultaneously The display will show the following question DIAGNOSTICS Within two seconds press the START button to confirm that you want to enter the Diagnostic mode A display similar to the one shown below will then appear Note If the START button is not pressed within two seconds the pump will return to its set up mode BD PLASTIPAK 60 VERSION 2 07 Moving to Press the NEXT button in order to mo
34. be used automati cally sensed Extra software features such as the intelligent near end alarm were also incorporated This is the only pump in the 3000 Series that is not fitted with an RS232 connector 3300 The next bedside syringe pump to be developed was the 3300 This was similar in mechanical and electronic design to the 3100 but the features were specifically for the now more mature PCA market A lockable syringe cover was added for security against drug theft a four line LC display was added and internal history recording 1500 events with printout was also added With the growth in PCA knowledge in the medical community many more software features were incorporated into the 3300 to aid PCA administration 3400 The 3400 was developed again from the 3100 to satisfy the need for a high speed infusion pump for intravenous anaesthesia Advances in micro controller technology allowed the use of a single device to control all the pumps features The maximum infusion rate was raised to 1200 0 ml hr and bolusing facilities were also added Later an infusion rate calculation facility was added to the software A larger liquid crystal display was used on the 3400 with the ability to display text in different sizes also soft keys were used to make the user interface simpler The range of syringe sizes that could be used was also increased For more advanced applications the pump could be controlled by a computer contd 34
35. been designed into the 3400 so that should a fault occur it can easily be identified The Fault code numbers are used to indicate the type of fault that has occurred The micro processor is capable of recognising faults and generating fault code numbers in the range 0 to 97 see Table 5 1 The fault codes are not expected to change for future software versions The normal operational ALARMS and WARNINGS are fully detailed in the 3400 Instruction Manual Table 5 1 Fault codes Code Fault Recommended action 07 RAM test failure See item 2 on page 5 2 10 Motor fault See item 4 on page 5 2 11 Watchdog interrupt See item 2 on page 5 2 22 Unexpected interrupt See item 2 on page 5 2 30 Unexpected program restart See item 2 on page 5 2 34 Redundant variable mismatch See item 2 on page 5 2 35 Variable out of range See item 2 on page 5 2 38 39 Motor fault See item 4 on page 5 2 45 Microprocessor fault See item 2 on page 5 2 46 Internal watchdog fault See item 2 on page 5 2 47 Program exception See item 2 on page 5 2 51 Program exception See item 2 on page 5 2 52 Program exception See item 2 on page 5 2 55 Program exception See item 2 on page 5 2 56 Internal register not correct See item 2 on page 5 2 57 58 Calculation error See item 2 on page 5 2 59 Program exception See item 2 on page 5 2 contd 3400 Service Manual Issue 6 July 00 5 1 Fault codes SIMS Graseby Ltd Table 5 1 Fault codes contd Code Fault Re
36. flag is allowed to rest on the syringe invalid gauge The size sensor tests are complete when the correct display for each gauge appears and the pump does not toggle between sizes when pressure is applied to the flag Apply a small amount of Loctite 414 to the anti tampering grub screw cap and then fit it into place Apply a small amount of loctite 414 to the security cap Apply a small amount of loctite 7400 to the thread of the grub screw prior to setting GM1111 A Figure A 3 Size Sensor Flag general details Appendix page 4 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Appendix The SIMS Graseby Size Sensor Gauge set Part No 0131 0202 contains the gauges that are used to carry out the Size Sensor tests on the 3400 These gauges are listed below 3400 Syringe Size Sensor Gauges white PART No GAUGE DIA mm CORRECT RESULT 131 165 11 20 SYRINGE INVALID displayed 131 166 12 50 min Syringe size 5 displayed 131 167 15 00 max Syringe size 5 displayed 131 168 16 20 min Syringe size 10 displayed 131 169 18 20 max Syringe size 10 displayed 131 170 21 00 min Syringe size 20 displayed 131 171 23 00 max Syringe size 20 displayed 131 172 23 70 min Syringe size 30 displayed 131 173 26 80 max Syringe size 30 displayed 131 174 29 00 min Syringe size 60 displayed 131 175 33 10 max Syringe size 60 displayed 3400 Service Manual Issue 6 July 00 Appendix page 5
37. from an overvoltage by a crowbar protection device When the protection output voltage exceeds 13 V the Zener diode D2 conducts thus causing a voltage to be developed across R5 This voltage is used to activate the silicon controlled rectifier Q1 which will sink enough current to result in fuse FS1 blowing Plug PL11 The outputs at plug PL11 should be as follows outputs Pin Output 1 and 2 Ground 3 7 V DC when on AC or battery supply 4 7 V DC when on AC supply Setting RV1 The procedure for setting RV1 is as follows 1 Switch off the external AC power remove the AC power connector and open the casing as detailed on page 2 5 2 Remove plug PL11 and PL12 from the Regulator board and connect a 68 ohm 1 watt resistive load across pins 2 and 3 of plug PL11 Pin 1 of PL11 is the top pin as shown on the Regulator component layout diagram Fig 4 15 Note A Molex connector part number 3750 7217 will enable the 68 ohm resistor to be easily connected across PL11 WARNING During the setting of RV1 dangerous AC supply voltages will be present 3 Connect and switch on the AC power If necessary adjust RV1 to give a DC voltage across the 68 ohm load dependent on the temperature as shown in Table 4 2 RV1 is located near the bottom left hand corner of the board see Fig 4 15 Table 4 2 Temperature voltage range for setting RV1 Ambient temperature DCC output voltage c 68 ohm load 28 7 015 27 7 027 26 7 038 25 7 050 24 7 062 23 7 073 22 7
38. plunger clamp closed 3 5 kg including batteries and pole clamp 100 to 240 V 50 60 Hz 40 VA The power supply uses Primary Switching in order to utilise the AC supplies of most countries Sealed lead acid rechargeable Cyclon 3 off SIMS Graseby recommend that the batteries are checked at least annually see page 5 10 More than 10 hours of normal pump operation when the batteries are fully charged With the AC supply connected up to 14 hours will be required to fully recharge low voltage batteries BD Plastipak 5 10 20 30 35 or 50 60 ml Terumo 5 10 20 30 35 or 50 60 ml Braun Omnifix 5 10 20 30 35 or 50 60 ml Sherwood Monoject 5 10 20 30 35 or 50 60 ml IMS Pump jet 30 30 ml prefilled Fresenius Injectomat 50 ml Braun Perfusor 50 ml conversion kit required refer to Chapter 8 Continuous 0 1 to 400 ml h in 0 1 ml increments Mass units mg kg h etc Bolus 0 1 to 1200 ml h in 0 1 ml increments O to 999 9 ml in 0 1 ml increments 1 85 kg 250 mm Hg to 7 42 kg 1000 mm Hg Operating conditions 5 to 40 30 to 75 Rh 700 to 1060 hPa Storage conditions 40 to 70 30 to 90 Rh 700 to 1060 hPa x 296 when measured over a complete syringe IEC 601 1 Class Type CF Selectable via the configuration mode see page 2 2 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Development of 3000 series Brief history of SIMS Graseby bedside syringe pump
39. shaft and is used to provide a feedback signal This feedback signal enables the processor to change the PWM signal thus altering the speed of the motor Rotation of the occlusion slotted disc described above is also used in conjunction with a second sensor to monitor the rotation of the motor If either sensor does not detect the appropriate pulses an alarm signal will be generated The mechanical characteristics of the system are Gearbox reduction ratio 150 1 Leadscrew pitch 1 587 mm Syringe characteristic 1 ml 1 8 mm BD 60 ml syringe Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Functional descriptions Sensing alarm systems Introduction Syringe nearly empty End of infusion occlusion AC power failure Battery voltage low Selftests pump malfunction Drive disengaged or syringe not fitted Syringe sizing system In addition to the occlusion sensing system see page 3 2 the following sensing systems are also operative within the 3400 A metal flag protrudes from the left hand side of the half nut in parallel with the leadscrew this is the nearly empty flag When this flag de activates OPTO 0 see page 4 27 that is situated at the left hand side of the leadscrew and the slotted disc is still rotating then the processor makes a calculation that depends on the infusion rate and issues an alarm three minutes before the end of the infusion Also when the pro
40. supplied e g 0132 0091 240 V English 3400 Service Manual Issue 6 July 00 5 11 CHAPTER 6 FUNCTIONAL TESTS 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd CHAPTER 6 Functional tests FUNCTIONAL TESTS Introduction Carry out the following tests Table 6 1 before putting the pump into service for the first time and thereafter as required The following functional tests have been designed to verify that the pump is safe to use It has been assumed that the Technician who will be carrying out the functional tests is familiar with the operation of the pump as detailed in the 3400 Instruction Manual Ifany one of the pumps functional tests fail and you are unable to rectify the fault yourself then contact either your local representative or SIMS Graseby Customer Care Table 6 1 Functional tests Method Correct result Before applying AC power to the pump check that the case and exposed mechanical parts are free from any damage No visible damage Step Test 1 Mechanical inspection 2 Electrical safety test The insulation resistance must be greater than 200 Meg ohm Using a test voltage of 500 V DC measure the insulation resistance between the AC inlet and the exposed metal parts 3 Initial power ON Connect the AC supply The AC LED lights Press the ON button All four LEDs are briefly illum inated the sounder activates and the STOP and AC LEDs remain on if in the s
41. the drug that is going to be used The pump can be configured by a suitably qualified person to work with any one of several selected brands of syringe plus when converted the Braun Perfusor syringe The particular brand of syringe selected will be displayed The diameter of the syringe installed is automatically sensed by the pump and from this dimension and knowing the syringe brand the pump is able to calculate and display the following syringe sizes 5 10 20 30 and 60 millilitres The pump is a compact robust unit that is able to function either sitting on a table top or mounted on an IV pole via the pumps pole clamp The pump can be configured to e deliver a volume or mass unit manual controlled infusion or avolume or mass unit bolus infusion Arunning total of the volume of liquid that has been infused is stored in the pump s totaliser and will remain available for display even though the infusion may have been stopped and then restarted The totaliser can be set to zero when required The pump can be operated from AC power or from internal rechargeable batteries When func tioning on fully charged batteries and under normal conditions the pump gives more than ten hours of continual use The AC power can vary between 100 V and 250 V and 50 to 60 Hz thus allowing the pump to be used anywhere in the world without adjustment A battery charging circuit within the pump keeps the batteries charged The batteries are ful
42. 00 0056 ACpower 110 V 3700 0230 German 3700 0035 French 3700 0035 Italian 3700 0025 Without plug Dutch 3700 0044 Hoyer 3700 0035 German Braun Perfusor 3700 0035 27 Instruction Manual English 0132 0044 German 0132 0079 7 2 Issue 6 July 00 3400 Service Manual Sims Graseby Ltd 3400 IPL VIEW ON ARROW A Figure 7 1 General assembly 3400 Service Manual Issue 6 July 00 7 3 3400 Illustrated Parts List SIMS Graseby Ltd 7 4 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Figure 71 assembly contd 3400 Illustrated Parts List Item Description Part number Remarks Technical service manual 00SM 0132 Not illustrated Size sensor gauge set 0131 0202 Not illustrated Kit contains the following items 18 size sensor gauges PC interface cable assembly 0053 0704 Not illustrated Rear warning labels Not illustrated UL label 0132 0092 110V N America only Zeneca label 0132 0058 Syringe type label 0132 0073 French only 5 10 ml adaptor plate 0132 0076 Not illustrated Braun Perfusor 50 ml conversion kit 0131 0048 Not illustrated Kit contains the following items Perfusor spacer tube See Chapter 8 for conversion Nearly empty flag for Perfusor Plunger clamp plate P label procedure Dual ramp gauge 0131 0084 See page 6 4 Linear accuracy gauge 0131 0230 See page 6 5 E Taper gauge 0
43. 00 Service Manual Issue 6 July 00 1 5 Development of 3000 series SIMS Graseby Ltd Brief history contd 3200 The 3200 was developed as a general purpose syringe pump Wet side pressure sensing intermittent infusion capabilities and computer interfacing were added The wet side occlusion pressure monitoring made the pump particularly suitable for use in intensive care baby units A large text vacuum fluorescent display was added and the increased syringe size range of the 3400 remained A DC input supply 10 V to 28 V DC version of the 3200 is also manufactured by SIMS Graseby This variant is primarily intended for use in an aviation environment 3500 There are two versions of the 3500 as follows 1 AManually Controlled Infusion MCI only pump 2 An MCI plus a Target Controlled Infusion TCI pump The 3500 was developed from the 3400 and retains all the 3400 facilities The MCI plus TCI pump carries out a TCI using the Diprivan drug This version of the 3500 incorporates a Diprifusor module manufactured by Zeneca Pharmaceuticals A new main circuit board and new software allows the 3500 to interface with the Diprifusor module A 3500 non TCI pump can be converted to become a 3500 MCI plus TCI pump 3150 The 3150 is very similar to the 3200 general purpose pump The main difference being that the In line wet side pressure sensing system in not available on the 3150 i e the pressure transducer is not fitted
44. 085 21 7 096 20 7 108 19 7 120 18 7 131 17 7 143 16 7 154 15 7 166 4 8 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Sensors boards 4 Switch off the AC power remove the 68 ohm load reconnect PL11 and PL12 to the Regulator board and assemble the casing as detailed on page 2 5 Size sensors and board The Syringe size sensors board Fig 4 17 is located just front of the right hand end of the leadscrew Fig 7 1 The sensor moulding houses three infra red emitting diodes and three photo transistors These three pairs of detection sensors Fig 4 16 are used to detect and monitor the size of the syringe that is fitted onto the pump The ribbon cable from PL1 connections on the Size sensors board is routed to plug PL7 on the Distribution board Opto sensors and board The Opto status sensors board Fig 4 19 is located on the left hand side of the pump just above the left hand end of the leadscrew Fig 7 1 There are three optical interrupt devices attached to this board The three optical senors Fig 4 18 opto interrupter 00 01 and 02 are used to monitor the status of the three following parameters end of syringe travel detection occlusion detection drive engagement detection half nut on off leadscrew The sensors are hardwired from plug PL1 on the Opto sensors board via a ribbon cable to plug PL3 on the Distribution board Umbilical board connections The Umbilical board Fig
45. 10K 10K 10K 55 Q1 02 Q3 PEKI K BCW32 BCW32 BCW32 HEADER 2 SOUNDER e GM1127 A 5 Figure 4 8 Main board input output interface circuit diagram 3400 Service Manual Issue 6 July 00 4 17 UM O 26 GM1128 A Umbilical Connections PL3 26 25 D OVCC O d 24 23 D O VIN O O DCSW O77 yag 473 UM19 SV OPTO OPTDRV1 UM18 dis 1756 UM17 1 TXD UM16 Jie ae p UM15 OPT2 RXD UM14 UM13 14 13 D DSR UM12 12 1 O VIN CIS EMO Gt 80 OGND RTS UM8 25 UM7 MOTORS SER_GND UM6 de EB 5 MOTOR4 sperel 15 5 UM1 O DESW MOTOR6 GND O 2 1 HEADER 13X2 UM O 26 Figure 4 9 Umbilical cable connections diagram SERIAL O 5 SIMS Graseby Ltd 4 18 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Umbilical Connections 2 256 ovce 23 2 OVIN D DCSW UNO 22 A UMS VIN d20 190 UM18 UM17 dis 170 UM16 UM15 916 150 Cia D UMI3 12 djs 11 D UMN PL4 UMIO di0 9 P UM9 UM13 MOTORO 4 7 UM11
46. 131 0227 See page 6 5 3400 Service Manual Issue 6 July 00 7 5 3400 Illustrated Parts List SIMS Graseby Ltd Figure 7 2 Plunger clamp and half nut assemblies Item Description Part number Remarks Plunger clamp and half nut assemblies 1 Plunger clamp and tube 0127 0044 2 Plunger clamp cover and internal kit 0131 0239 Kit contains the following items Plunger clamp cover Plunger clamp lock Plunger clamp pin Plunger clamp conical spring Plunger clamp finger spring 3 Half nut casting 0132 0042 4 Size sensor flag spares kit 0137 0025 Kit contains the following items Size sensor flag Size sensor flag moulding Protective cap Grub screw M4 x 6 Size sensor shims x4 2 screws and Instruction leaflet 5 Square shaft 0127 0048 5 GM0351 B Figure 7 2 Plunger clamp and half nut assemblies 7 6 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Fig 7 3a Pole clamp assembly non rotating 3400 Illustrated Parts List Item Description Part number Remarks Pole clamp assembly new version 0131 0129 See Fig 7 3a Figure 7 3a Pole clamp assembly Non rotating 3400 Service Manual Issue 6 July 00 7 7 3400 Illustrated Parts List Fig 7 3b Pole clamp assembly rotating SIMS Graseby Ltd Item Description Part No Remarks Rotating pole clamp assembly 0131 0083 1 Securing plate 0131 0074 2 Locating ring 0127 0064 3 Handle 0127 0060 4 C
47. 400 utilizes a primary switching power supply as shown on Figures 4 11 4 12 and 4 13 thus allowing the pump to operate with an AC input voltage between 100 V and 250 V The advantages of this type of power supply over a conventional power supply include the following greater efficiency larger power capability for a given size of power supply asmallertransformer is needed for a given output power The operation of the Regulator is based upon a universal switch mode controller IC1 Fig 4 12 which uses current mode pulse width modulation control The Regulator provides the following DC supplies 7V for the motor supply and the LEDs and 5V for the logic circuits The AC input supply is applied to the live circuit i e the primary side of T1 via protection fuse FS2 500 mA Fig 4 13 to the filter R20 and L2 The output from bridge rectifier D7 is smoothed by C10 and the transient current is limited by varistor V1 When V1 is cold the resistance is high and as the thermistor warms up the resistance decreases allowing the current to increase The resulting output is used to start up IC1 via pin 1 and is also fed to the primary winding pin 6 of the power transformer Once the switch mode controller has been started it obtains its supply from the bootstrap winding of T1 pins 2 and 3 This supply is smoothed by C13 and regulated by Zener diode D6 The PWM signal output from pin 5 on IC1 controls the operation o
48. AL e COMSIG COMPWR R24 1K SENSE2 SENSE1 R22 05 BOOT1 C13 MS 11DQ10 mamam 1j 35V D6 BOOT2 13V COMSIG Switching MOSFET COMSIG 1 7 OUT2 V V C12 N d Q3 R21 nis 14 comp out 47 4 7 108 e 10nF 15 FB Rie R19 SENSE 4K7 470R 11 R14 9 L 6011 _l C9 OSC1 T 1nF 1nF COMSIG b 330K 6 2 OSC2 16 em 512 M ET BIAS SHUTDN o COMSIG 188 10 DISCH RESET 3 R13 SCREEN1 390K HV9120P T 6 COMPWR COMPWR GM0334 A COMSIG Figure 4 12 Regulator live circuit diagram 4 22 Issue 6 July 00 3400 Service Manual Regulator isolated SIMS Graseby Ltd Output Filter Feedback Reference Output Crowbar Protection D1 IN1 MAINS OK 11DQ10 D3 FS1 9 DC OUT 1 745 Heatsink ted Heatsink mounted FS3 e BATT R8 1K5 TH R25 2 Amp 1K2 4K7 e FB1 R9 R11 3K6 1 e FB2 _ C8 220R F 1nF D4 TL431 d e RV1 R23 470R 220R D2 R10 13V 2K2 196 Q1 R jt 4 v TIC106B C7 C6 e R5 R7 27R 10K ESD GND SCREEN2
49. Graseby 3400 Anaesthesia Syringe Pump TECHNICAL SERVICE MANUAL S MS GRASEBY Documen t Number 00SM 0132 Issue 6 0 SIMS Graseby Ltd Copyright and address Published by SIMS Graseby Limited All possible care has been taken in the preparation of this publication but SIMS Graseby Limited accepts no liability for any inaccuracies that may be found SIMS Graseby reserves the right to make changes without notice both to this publication and to the product which it describes SIMS Graseby Limited 1999 No part of this publication may be reproduced transmitted transcribed or stored in a retrieval system or translated into any human or computer language in any form by any means without the prior permission of SIMS Graseby Limited SIMS GRASEBY LIMITED COLONIAL WAY WATFORD HERTFORDSHIRE UNITED KINGDOM WD2 4LG TEL 44 0 1923 246434 FAX 44 0 1923 231595 REGISTERED IN ENGLAND COMPANY No 995550 3400 Service Manual Issue 6 July 00 SIMS Graseby Ltd ISSUE RECORD Amendment to three pages August 00 5 10 Amendment to two pages ii and 7 15 Feb 01 5 6 1 2 6 Page ii Issue 6 2 Feb 01 3400 Service Manual SIMS Graseby Ltd Contents LIST OF CONTENTS Page gt x Warnings and caution x Abbreviations us
50. IGURE Within two seconds press the START button to confirm that you want to enter the Configuration mode A display similar to the one shown below will then appear Note If the START button is not pressed within two seconds the pump will return to its set up mode BD PLASTIPAK 60 LANGUAGE ENGLISH NEXT CHANGE Press the CHANGE button repeatedly in order to scroll through the options that are available for each parameter The displayed option will be retained when the NEXT menu button or the STOP button is pressed The various options are retained in non volatile memory Press the NEXT button in order to move to the next parameter If a new option is required repeat the above Press the STOP button at any option in order to exit from the Configuration mode and return to the set up mode Configuration parameters and options that are available Syringe brands WARNING The pump must be set to operate and display the brand and size of syringe that is going to be used Using a different brand or size of syringe to the one that is going to be used could lead to the incorrect amount of drug being administered resulting in injury or death 1 Options BD Plastipak Terumo Braun Omnifix Monoject IMS Pump jet 30 Injectomat 50 ml Braun Perfusor a conversion kit is required see Chapter 8 2 2 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Display 2 Option language Bolus beep 3 Yes or No Preset bo
51. LAY 11 to 13 from the processor DISPLAY 11 which is connected to pin 16 on the processor is the master display enable line DISPLAY 12 and 13 define the section to be activated The contrast of the display is controlled by the voltage on pin 5 of LCD1 This voltage is produced by the inverting switching regulator IC2 The feedback reference voltage used by IC2 is varied by filtering the CONTRAST signal a PWM output from the processor this allows the contrast to be set by the user when in the configuration mode Thermistor RT1 compensates for fluctuations to the display contrast due to temperature changes The supervisor chip IC10 Fig 4 3 is able to turn on the sounder independently of the proc essor by using the DIRECT SOUND signal The sounder is turned on if the processor mal functions and is unable to produce its own sounder control The above is achieved by the watchdog on IC10 producing a timeout thus generating a DIRECT SOUND control D12 prevents a low signal from the SOUND signal drawing a current from IC10 Q4 and the associated components R6 R12 and R17 constitute a low pass filter which allows the PWM signal SOUND from the processor to activate the sounder The sounder is connected to plug PL1 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Regulator board Regulator board circuit Introduction Live circuit and T1 primary description T1 secondary Batteries circuit The 3
52. S Graseby set the occlusion by using a thrust measurement proce dure This method measures the plunger clamp thrust by using a set of weights as de scribed below but has the slight disadvantage that the characteristics of the syringe have to be taken into account The occlusion pressure is obtained by measuring the pressure that occurs in the infusion line This in line method gives a good accuracy better than 5 over a wide range of pres sures but also has the slight disadvantage of requiring a disposable that is unique to the pump being measured The internal occlusion sensing system within the pump is always active The occlusion thrust checks must be carried out whenever the super nut assembly is dismantled Translation of the thrust depends on the syringe diameter and the stiction of the syringe The formula for calculating the thrust is given below PxA S 732 1 where is the thrust in kg is the delivery pressure in mmHg is the cross sectional area of the syringe in cm is the syringe stiction in kg gt The occlusion thrust of the pump is factory set to be between two limits i e minimum and a maximum tolerance The customer may reset the thrust for their own particular require ment The thrust of a particular pump may therefore differ from the original factory set level The occlusion thrust of the 3400 pump is factory set at Graseby s to be between 5 7 kg and 6 2 kg 767 mmHg and 834 mmHg
53. SIMS Graseby Part No 0131 0202 The Appendix Page 3 gives details of the Final Testing procedures required Only items of equipment that conform to EN60950 may be connected to the 9 pin RS232 connector that is situated at the rear of the pump This conformity will prevent the safety of the patient being compromised When using a syringe smaller than 50 60 ml on a pump the occlusion pressure will increase as the diameter of the syringe decreases i e the smaller the syringe the higher the pressure The internal pump batteries must be disposed of in accordance with the manufacturers instructions Lead acid batteries must not be placed in the normal waste stream As with all computer electronic equipment high powered electromagnetic radiation such as from diathermy eqipment in close proximity can affect the operation of the pump although no hazard will be caused The pump is not suitable for use in the presence of flammable anaesthetics mixture with air with oxygen or nitrous oxide The Printed Circuit Boards PCB contained in the pump are electrostatically sensitive Use an earthing strap when handling a PCB to avoid electrostatic damage to the com ponents situated on the PCB Ensure that replacement PCB are stored in anti static containers Page Issue 6 1 August 00 3400 Service Manual SIMS Graseby Ltd Abbreviations used out this Manual Abbreviation Abbreviations The following list shows the abbreviat
54. SIMS Graseby a 1 6 mm shim is initially fitted Using the modified SSF reassemble in reverse order to that given in 1 to 6 above all the components that were disassembled Taking care notto trap any leads assemble the casing ensuring that the two case halves have snapped together and that the front and rear mating edges are equal and parallel The six case screws should be tightened to a torque of between 70 and 75 cNM in the order shown below Figure A 2 Order for tightening the case screws When a new SSF has been fitted the pump must be subjected to the appropriate Functional Test procedures given in Chapter 6 Before carrying out the Syringe Size Sensor tests ensure that the pole clamp has been correctly fitted and the six case securing screws have been fully tightened see Fig A 2 The Syringe Size Sensor tests are performed with the pump s plunger clamp at each of the following positions 1 40 mm from the right hand side of the plunger clamp travel and 2 at the extreme left hand side of the plunger clamp travel Also the pump must be Configured during the tests to operate with the BD Plastipak syringe The table given on page 5 lists the Gauges that must be sequentially loaded onto the pump in order to verify that the Syringe Size Sensor mechanism is operating correctly The small adjustment grub screw in the SSF must be correctly set see page 4 before carrying out the Syringe Size Sensor test
55. SIZE SENSOR FLAG Ina continual and ongoing programme of improvements to their 3000 range of syringe pumps SIMS Graseby engineers have recently introduced a modified Syringe Size Flag SSF see Fig that allows the size sensor mechanism to be accurately aligned On recently manufactured 3400 pump s a new thicker size sensor opto moulding and two associated longer fixing screws have been introduced at the same time as the modified SSF in order to make the alignment procedures easy This appendix will enable a qualified Technician to fit the new SSF the associated SSF shim s if required the fitment of the new thicker size sensor opto moulding and to carry out the final test procedures The SSF and shims etc that will be required to modify a 3400 pump are supplied in kit form part No 0137 0025 and this spares kit will include the following SSF Part No 0132 0090 see Figure 1 0 6mm thick shim Part No 0130 0107 1 0mm thick shim Part No 0130 0108 1 2mm thick shim Part No 0130 0190 1 4mm thick shim Part No 0130 0185 opto moulding Part No 0130 0024 4 65 mm thick screws No 4 x 5 8 inch Pozi self tap 5017 3410 2 off M4x6nylon grub screw Part No 0131 0144 tamper proof protective cap Part No 0131 0136 e instruction leaflet Part No 0131 0217 Figure A 1 New modified Syringe Size Sensor flag 3400 Service Manual Issue 6 July 00 Appendix page 1 App
56. TED PARTS LIST 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd CHAPTER 7 ILLUSTRATED PARTS LISTS Figure 7 1 General assembly 3400 Illustrated Parts List 2 Rear case spares kit Kit contains the following parts Rear case Rubber feet x2 Screws M4x12 x6 and In 3 Membrane front panel label English German Australian Zeneca Hoyer Dutch French Italian 4 Rear panel instruction label CE marked English Non CE marked English CE marked German Non CE marked German Non CE marked Hoyer Non CE marked Dutch Non CE marked French Non CE marked Italian Item Description Part number Remarks Model 3400 English 0132 0001 110 V model 0132 0701 German 0132 0707 Zeneca 0132 0710 German Perfusor 0132 0714 English with Euro mains plug 0132 0728 Australian 0132 0740 Hoyer 0132 0702 Discontinued non CE marked France 0132 0703 Discontinued non CE marked Italian 0132 0704 Discontinued non CE marked Dutch 0132 0709 Discontinued non CE marked 1 Front case spares kit containing 0132 0101 Front case Syringe clamp assy Button moulded x2 Size sensor flag spares kit Foam spacer type 3 x2 Instruction leaflet Radius Gauge Case Templates and Screws M4x12 x6 0132 0104 Foam spacer Foa struction leaflet 0132 0007 0132 0054 0132 0007 0132 0007 0132 0061 0132 0007 0132 0064 0132 0066 0132 0008 0132 0091 0132 0052 0132 0109 0132 0062 0132 0091 0132 0065 0132 0067 m s
57. TOR DRIVE ENABLE MOTOR POWER OFF MOTOR SENSE PROCESSOR CORE see Fig 4 3 MOTOR DRIVE ENABLE MOTOR POWER OFF MOTOR SENSE see Fig 4 9 CONTRAST POWERON OPTO CTL1 CONTRAST OPTO CTLO DISPLAY 0 13 DISPLAY 0 13 SENSORS see Fig 4 6 0 4 0 5 KEYBOARDY O 5 SENSE O 7 SOUND SOUND OPTO CTLO OPTO CTL1 HANDSHAKE OUT DIRECT SOUND DIRECT SOUND RXD IO DATA IO DATA HANDSHAKE IO IO TXD CLR CLR COMMUNICATIONS RS232 PROCESSOR see Fig 4 7 UMBILICAL CONNECTOR see Fig 4 11 TXD HANDSHAKE IN RXD HANDSHAKE OUT UMCO 26 UMCO 26 GM1121 A Figure 4 2 Main board block diagram 3400 Service Manual Issue 6 July 00 4 11
58. agement of the half nut is detected by an opto sensor Also trying to operate the pump without a syringe or with a syringe incorrectly fitted will cause the pump to go into an alarm state The syringe sizing system comprises a flag moulding see Fig 7 2 that rests on the barrel of the syringe and in conjunction with three size sensors see Fig 7 6 measures the diameter of the syringe being used The flag moulding rotates about the outer of the two guiding tubes and moves an actuating flag between the three size sensors The flag is able to de activate the three size sensors in any one of the following combinations none 1 1 2 1 2 3 2 3or 3 Depending on the operation of the size sensors the pump monitors the size of a syringe as being 5 ml 10 ml 20 ml 30 ml or 50 60 ml Or alternatively if a syringe is not fitted or a syringe smaller than 5 ml is fitted then the SYRINGE INVALID alarm will be activated 3400 Service Manual Issue 6 July 00 3 3 Functional descriptions SIMS Graseby Ltd Software Design The software for the pump has been designed using the structured design methods The methods software incorporates many safety tests and consistency checks The source code for the processor is written in Modula 2 which is particularly suitable for safety critical design Self tests The self tests include the following CPUtest ROM test 16 bit CRC RAM test Power suppl
59. aseby Ltd General Warnings Cautions This Technical Service Manual TSM together with the Instruction Manual for the 3400 contains the information that is required in order to carry out the following actions to the pump operation maintenance repair The TSM is primarily intended to be read and used by suitably qualified personnel Warnings and cautions are given throughout this manual and are repeated below Only qualified personnel should maintain and repair the pump The pump s Configuration or Diagnostic mode must only be used by personnel who have been adequately trained in how to use the pump and have been assigned to enter these modes The pump must be disconnected from the AC power supply prior to opening the casing During the setting of RV1 dangerous AC voltages may be present when the case is open Do not immerse the pump in any liquids Immediately wipe off any liquid accidentally spilt on the pump The safety and reliability of the pump may be compromised by the use of parts other than those specified in this Manual The pump must be set to display the brand and size of syringe that is going to be used Using a different brand or size of syringe to the one that is going to be used could lead to the incorrect amount of drug being administered resulting in injury or death When a new Size Sensor Flag has been fitted then the pump must be tested using the Syringe Size sensor Gauges available from
60. cessor detects that OPTO 0 is de activated and the slotted disc has also stopped rotating then an OCCLUSION alarm is generated Although the above condition has been termed an alarm state the same conditions will occur when the syringe reaches the end of its travel at the end of a perfectly normal infusion If the slotted disc stops rotating and the nearly empty flag has not moved a sufficient dis tance to the left to de activate OPTO 0 then the alarm condition will be that of occlusion as explained on page 3 2 The software sensing system will detect an AC power failure The pump will continue to run after a power failure for a period of ten hours or more by automatically switching to the internal battery supply The sensing circuits incorporate a system that monitors the output of the batteries and regis ters an alarm if the voltage of the batteries drops below 5 75 V If the voltage falls below 5 4 V the pump will turn itself off after an initial warning period Various self tests are carried out on the pump when it is first switched on In addition to the self tests the rotation of the slotted disc at the end of the leadscrew is monitored to ensure that the drive mechanism is operating correctly The drive system is designed so that it is only engaged when the top of the syringe is cor rectly positioned in the plunger clamp If the plunger clamp is knocked out of place during an infusion the drive will automatically stop the diseng
61. commended action 61 Program exception See item 2 on page 5 2 64 RS232 receiver overrun See item 1 on page 5 2 66 67 Comms buffer overflow See item 1 on page 5 2 68 RS232 buffer overflow See item 1 on page 5 2 69 RS232 buffer overflow See item 1 on page 5 2 70 CPU test failed See item 2 on page 5 2 80 81 Watchdog test failed See item 2 on page 5 2 82 Motor faulty See item 2 on page 5 2 85 Power supply fault See item 5 on page 5 2 87 CRC test failed See item 2 on page 5 2 90 EEPROM failure See item 6 on page 5 2 91 Keyboard fault See item 3 on page 5 2 93 94 95 Diprifusor fault See item 6 on page 5 2 96 ROM checksum fault also power on See item 2 on page 5 2 97 Motor fault See item 4 on page 5 2 The six items shown below and cross referenced from Table 5 1 detail the possible cause of a fault and the recommended action to be taken Item Fault Possible cause Recommended action 1 Communication External interference Check communication link and Comms fault e g static interference interface cable or R F interference Circuit fault Return to SIMS Graseby 2 Internal fault External interference Relocate the pump e g static interference or R F interference Circuit fault Return to SIMS Graseby 3 Keyboard fault Damaged keyboard Replace keyboard 4 Motor fault Faulty motor or lead Check motor and lead screw Screw drive assy drive assembly 5 Power supply Faulty power supply Check the power supply 6 Return to SIMS G
62. d layout of components 3400 Service Manual Issue 6 July 00 4 27 Distribution board components SIMS Graseby Ltd 132 016 155 GM0342 A Figure 4 20 Umbilical board layout of components 4 28 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Membrane switch panel o ON o o o o o o o o SEL3 SEL2 SEL1 SEL0 10 20 30 o o o 40 ALARM BOLUS START STOP s5spo 6sp 70 gp p wpm 11 0 4 12 o oo o o o o o 0 7 o o o o o o o o o CANCEL 3 6 o o OFF GMO0343 A Figure 4 21 Membrane switch panel circuit 3400 Service Manual Issue 6 July 00 4 29 Internal ribbon cable SIMS Graseby Ltd SER GND NOTE The RS232 Serial Interface connections to PL2 are shown on Fig 4 10 GM1131 A Figure 4 22 Internalribbon cable and D connector connections 4 30 Issue 6 July 00 3400 Service Manual CHAPTER 5 FAULT CODES CLEANING AND REPAIR PROCEDURES 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd Fault codes cleaning and repairs CHAPTER 5 FAULT CODES CLEANING AND REPAIRS Fault codes Comprehensive fault codes have
63. d end of the leadscrew assembly Uncouple the leadscrew assembly from the gearbox by pulling it away from the gear box shaft 5 6 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Renewal Releasing the spring pressure Case assy and checks Motor and gearbox assembly renewal Occlusion clutch and disc assy renewal 9 10 12 13 14 15 procedures Fit a new leadscrew assembly reversing steps 2 to 8 detailed above During the fitting of the new leadscrew the spring pressure will have to be released see below in order to move the leadscrew assembly to the left so that it fits correctly into the grooves of the rear casing Ensure that the groove on the syringe size sensor collar through which the larger telescopic tube slides fits correctly into the concaved rear casing If necessary rotate the leadscrew so that the small grub screw that is situated in the grooved occlusion nut on the right hand side of the leadscrew is accessible Using a 1 5 mm hexagon key loosen the grub screw Ensuring that the leadscrew does not turn move the occlusion nut counter clock wise i e towards the left of the leadscrew in order to relax the spring tension When the leadscrew assembly has been correctly positioned tighten the grub screw Assemble the casing as detailed on page 2 5 Carry out the thrust checks and plunger clamp checks adjustments as detailed on page 2 7 and 6 3
64. d pumps then it is recom mended that the half nut is changed for a super nut see page 5 8 and that three following modified items should also be fitted to the pump 1 Anew style square shaped flag Part No 0127 0019 as shown below in place of the old style flag 2 Anew style shaft bracket Part No 0127 0052 as shown below This bracket is identified by a V notch that appears on one of the prongs 3 Two new thicker washers Part No 5014 3020 in place of the previously fitted thinner washers on the status sensors board New square style flag Old ramp style flag Th ___ Notch GMI087 A New style plate 6 4 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Functional tests Linear accuracy Test procedures Plunger clamp alignment Test procedures The linear accuracy gauge part number 0131 0230 when placed on the pump is able to check that the pump s plunger clamp moves a given distance in a specified time Initially the pump will have been preset to given parameters then set to run for a specified time and the distance that the plunger moves being observed on the measurement dial of the gauge f ROTARY ZEROING DIAL DISTANCE INDICATOR LOCKING SCREW METAL ROD MODIFIED SYRINGE EM N 10 20 30 40 50 ml 60 GM1209 A Linear accuracy ga
65. der 7 way PL5 header 3 way PL6 header 4 way 132 016 ISS GM0342 A Figure 7 9 Distribution board assembly 3400 Service Manual Issue 6 July 00 7 17 CHAPTER 8 BRAUN PERFUSOR CONVERSION 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd Braun Perfusor conversion CHAPTER 8 BRAUN PERFUSOR CONVERSION Syringe conversion procedures Introduction Nearly empty flag conversion Spacer tube fitment Plunger clamp fitment plate Braun perfusor selection P label fitment The 3400 can easily be converted if required in order to use the Braun Perfusor 50 ml syringe The Perfusor conversion kit part number is 0131 0048 The conversion procedures are detailed below and are shown in Figure 8 1 Open the pump case page 2 5 and temporarily displace the Distribution board assembly Fig 7 1 by unscrewing the screw at the bottom of the assembly Remove the standard flag from the top of the half nut retain the standard flag for possible future use Fit the elongated Perfusor 50 ml nearly empty flag by inserting the flag into the grooves on the half nut see Fig 8 1 Ensure that the flag is fitted so that the small amount of flag bias is in the direction of the arrow shown in Figure 8 1 Note If not already biassed bend bias the end of the flag in the direction of the arrow shown in Figure 8 1 a distance of approximately 2 mm this will ensure that the flag when it moves
66. e 3400 system 4 10 4 2 Mainboard block diagram 11 4 11 4 3 Processor core circuit 4 12 4 4 Motor interface circuit 4 13 4 5 Power control circuit diagram eene 4 14 4 6 Sensors interface circuit diagram 4 15 4 7 Communications RS232 circuit diagram 4 16 4 8 Mainboard input output interface circuit diagram 4 17 4 9 Umbilical cable connections diagram 4 18 4 10 Umbilical board connections diagram 4 19 4 11 Regulator circuit diagram overview 4 21 4 12 Regulator live circuit diagram eene 4 22 4 13 Regulator isolated circuit diagram 4 23 4 14 Main board layout of components 4 24 4 15 Regulator board layout of components 4 25 4 16 Syringe size sensors circuit diagram 4 26 4 17 Syringe size sensors board layout of components 4 26 4 18 Opto sensors circuit 4 27 4 19 Opto sensors board layout of components
67. ed a xi CHAPTER 1 INTRODUCTION FEATURES CLASSIFICATION AND SPECIFICATION 1 1 General information 0 1 1 ede eram ea 1 3 Classification u u u bet Ue pr RR HER yana 1 3 Specification een eu 1 4 Brief history of Graseby bedside syringe pumps 1 5 CHAPTER 2 CONFIGURATION amp DIAGNOSTIC MODE AND THRUST ADJUSTMENTS Configuration mode a 2 1 Calling up the configuration mode esee 2 2 Changing ari option ree ce Ch cns 2 2 Moving to the next parameter 2 2 Configuration parameters and settings that are available Syringe brands re bre ares 2 2 Display lariguage tene eterne ere Genet eee tns 2 3 BoluS Dep muet mutui 2 8 Preset bolus dOS U te ER ie ERE EC 2 3 IM 2 3 LCD Contrast cte pn eee 2 3 Baud rate uuu cipia ee oe d 2 3 EIC 2 3 Diagnostic mode n qulaq pisala 2 4 Calling up the Diagnostic mode 2 4 Moving to the next parameter 2 2 4 Diagnostic displays inrer Ilo cet eet s 2 4 Exiting from the Diagnostic mode
68. egister As each column is pulled ow the status of each button in that column is input to the processor 3400 Service Manual Issue 6 July 00 4 5 Main board input output SIMS Graseby Ltd LED illumination Realtime clock Liquid crystal display Sounder R22 limits the current in the control lines out of IC1 Diodes D8 to D11 allow IC1 to pull the selected control line low but let the remaining lines float when a logic high is applied at the output of IC1 Zener diodes D13 to D18 inclusive and resistors R14A R14C R15A R15C R16A and R16C form the electrostatic discharge protection circuit The other four output lines on are used to activate transistors Q1 Q2 and Q5 Q1 to Q3 control the illumination of the display LEDs D2 D3 and D4 Q5 with associated components D5 D6 R11 and R4 sinks a constant current from pin 18 on LCD1 thus illuminating the LED used to backlight the LCD display LED D1 is lit when there is a voltage on VAC which signifies that the AC supply is connected IC3D acts as an inverter to input IO CLR so that IC1 has its outputs disabled when the real time clock IC11 Fig 4 3 is reading data to or from the processor IC1 and IC11 share the same data lines The 192 x 64 pixel dot matrix liquid crystal display is made up of three sections controlled by three drivers Which driver is used for the data lines DBO to DB7 on the data bus in LCD1 is controlled by the signals DISP
69. endix WARNINGS CAUTION OPENING THE CASE REMOVAL OF OLD SSF SIMS Graseby Ltd When a new SSF has been fitted to a 3400 pump the pump must be tested using the Syringe Size Sensor gauges Part No 0131 0202 available from SIMS Graseby Page 3 gives details of the Final Testing procedures Ensure that the AC mains supply is switched off and the pump s AC connector is removed before opening the two halves of the case During the removal and replacement of a pump s components strict observance to Electro Static Discharge ESD rules must be observed at all times i e an earthing strap must be worn Failure to apply ESD protection may result in damage to the pump resulting in its malfunction The screws washers and associated items that are removed during the disassembly of the pump will be required during the reassembly 1 Utilising a scratch free flat surface turn the pump over in order to gain access to the base of the pump 2 Undo the six screws that hold the two halves of the pump cases together 3 Place the pump upright and from the top carefully ease the two halves of the casing apart taking care not to put any strain on the internal connecting cable looms that form a hinge between the two halves of the case 1 With the pump case open as detailed above remove and retain the screw from beneath the umbilical board and displace the board in order to reveal the half nut 2 Disconnect the long thin spiral spring f
70. er from moving forward in the event of negative pressure on the syringe Two small push buttons on the edge of the plunger clamp make contact with the top of the syringe plunger These push buttons control the operation of a lever which protrudes from the plunger clamp 3400 Service Manual Issue 6 July 00 3 1 Functional descriptions SIMS Graseby Ltd When the push buttons are pressed in by coming into contact with the top ofthe syringe the lever becomes free and is able to retract into the plunger clamp This retraction takes place when the plunger clamp is physically swung into its down operating position If the push buttons are not pressed in the ever will be locked in its protruding position thus preventing the plunger clamp from being pulled down This in turn prevents the half nutfrom engaging on the eadscrew This push button safety system prevents the leadscrew from being engaged unless the top of the syringe is correctly positioned in the plunger clamp If the plunger clamp is accidentally dislodged during an infusion the pump will stop infusing and the alarm will sound Occlusion sensing system Clutch assembly and opto sensor Occlusion detection The occlusion sensing system consists of a clutch spring mechanism a rotating slotted disk and opto OPTO1 see page 4 27 The clutch and spring mechanism comprise the back pressure system The rotating slotted disc and OPTO1comprise the rotation detect
71. erter 4 2 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Processor core The chip 1 10 is the processor s supervisory circuit which has the four following main duties to control the processor reset to provide the switch over battery backup for the to provide the watchdog timer to provide the CMOS RAM write protection during power down Pin 21 of the processor receives pseudo non maskable interrupts generated by the supervisory circuit in the event of a system fault being detected The crystal X1 and the associated components R63 C28 and C29 form a 16 MHz oscillator to provide clock pulses for the processor via pins 67 and 68 The ram chip IC8 is used as a buffer for the RS232 interface and the display and general purpose storage area A Pulse Width Modulated PWM output on pin 12 PW1 is used to control the DC motor power Output PW3 on pin 14 controls the sounder Output PW4 on pin 15 controls the LCD screen contrast Motor interface circuit Introduction Transients suppression Motor speed control IC12 utilizes a closed loop power controlled system to regulate the speed of the DC motor Pulse Width Modulated output signal PW1 pin 12 Motor Drive is used for this regulation This system results in very accurate control over the rate that the drug is administered Power control transistors Q11 and 12 Fig 4 4 in conjunction with resistors R33 R36 and R37 allow
72. etup mode If a syringe is fitted the syringe type size and the last infusion rate will then be displayed 4 Syringe size sensors Note Perform with plunger clamp 40 mm from RHS and also at extreme LHS Insert in turn the following diameter rods in the syringe cradle 11 2 mm diameter rod SYRINGE INVALID displayed 12 5 and 15 0 mm rod Syringe size 5 displayed 16 2 and 18 2 mm rod Syringe size 10 displayed 21 0 and 23 0 mm rod Syringe size 20 displayed 23 7 and 26 8 mm rod Syringe size 30 displayed 29 0 to 33 1 mm rod Syringe size 60 displayed SIMS Graseby manufacture a set of 18 Syringe Size Sensor gauges Part No 0131 0202 see Appendix page A 5 The SIMS Graseby Customer Care Department is able to take orders for these gauges and will supply the current price This set of gauges enables test No 4 to be carried out on all the 3000 Series of pumps contd 3400 Service Manual Issue 6 July 00 6 1 Functional tests Step Test 5 Membrane buttons and display ON OFF buttons Numeric buttons Totalizer Infusion Bolus Infusion rate Method With the pump ON press the OFF button Press the ON button Press the four following sets of numeric buttons and press the CANCEL button after each sequence 1 Full stop then 9 2 1 2and3 3 4 5and6 4 7 8 9 Check that the totalizer buttons operate correctly see Instruction Manual Fit a
73. f Q3 which cycles on and off thus regulating the flow of current through the primary winding of T1 connected between OUT1 and OUT2 Transient suppression is applied Fig 4 11 by C1 R1 C2 R2 C3 R4 and C4 R3 The voltage at the secondary of T1 is rectified and smoothed D1 D3 C6 and C7 Fig 4 13 The DC outputs are protected by fuses FS1 and FS2 When the AC supply is being used there will be a DC voltage on pin 4 of PL11 thus allowing R6 and R7 to act as a potential divider in order to control Q2 Q2 will not be active if the AC supply is not present this prevents the batteries from discharging through R8 R9 RV1 and R10 When Q2 is active the above components form a potential divider between the output of D3 and OV The output from the potential divider is used as the reference voltage for the shunt regulator D4 3400 Service Manual Issue 6 July 00 4 7 Regulator board SIMS Graseby Ltd 8 15 atransient suppressor Thermistor TH1 varies the reference voltage according to tem perature thus compensating for battery charging characteristics When the voltage at potentiometer RV1 exceeds the reference value D4 conducts and acti vates the opto coupler IC2 Fig 4 11 and the current through this photo transistor causes a voltage to be developed across resistor R19 This voltage is applied to IC1 which changes the mark space ratio of the output signal pin 5 Overvoltage The Regulator is safeguarded
74. fully to the left does not touch the left hand post Carefully lift up the left hand end of the inner metal tube and fit the nylon spacer tube part number 0131 0051 over the tube The spacer tube acts as an end of travel stop when the half nut assembly is moved to the left Fitthe self adhesive half round plunger clamp plate part number 0131 0073 to the left hand side of the plunger clamp It must be fitted to the vertical face of the plunger clamp so that it covers both quadrant vanes Fig 8 1 Reassemble the case as detailed on page 2 5 The Braun Perfusor 50 ml syringe is selected for use on the pump by using a special Configuration command First select the Configuration mode see page 2 1 and then select and display the syringe brand screen Simultaneously press the following three buttons ALARM BOLUS and OFF The pump will then switch to the Braun Perfusor syringe mode and other syringe brands will automatically be disabled The pump syringe display will show BRAUN PERFUSOR 50 ml and the CHANGE button whilst in this mode is ineffective Fit the self adhesive P label part number 0131 0065 to the front of the pump in the area just above and to the right of the product name Fig 8 1 This label acts as a visual reminder that the pump must only be used with the Braun Perfusor syringe 3400 Service Manual Issue 6 July 00 8 1 Braun Perfusor conversion SIMS Graseby Ltd Reselecting various s
75. g out any air bubbles at the same time 10 Connect the flexible lead to PL2 Main board and using the six screws that were previously removed refit the Main board to the top halve of the casing 11 Assemble the casing as detailed on page 2 5 Super nut Early 3400 pump s were fitted with a half nut and in May 1999 the half nut was replaced with renewal a three quarter super nut The following procedures only make reference to the presently installed super nut which is a direct replacement for the original half nut Half nut Super nut The super nut casting see Fig 7 2 is clamped onto the left hand end of the outer metal tube by an M4 countersunk screw that is tightened into a recess positioned hexagonal nut It is also attached to the toggle mechanism by a Spirol connecting pin 1 Open the pump casing as detailed on page 2 5 2 Remove and retain the Spirol connecting pin that fixes the super nut to the toggle mechanism 3 Unhook the top of the retaining spring 2 mm dia by 2 5 cm long from the syringe size sensor lever arm 5 8 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Repair procedures 4 Lift the two guide tubes off their respective seating and then remove the attached assembly complete with the faulty super nut from the pump 5 Remove and retain the super nut countersunk clamping screw and associated nut 6 Lever the sides of the super nut apart in order to disengage the casting pip from the locati
76. ger clamp repair Batteries Checks and replacement Front and or rear case repair The plunger clamp cover must be removed in order to reach the internally located lock or pin moulding see Fig 7 2 The outer casing of the clamp is fixed to the right hand end of the outer tube 1 Remove and retain the two screws that hold the plunger clamp cover onto the outer casing and remove the cover 2 Thelock and pin moulding together with the associated spring will become accessible 3 Asrequired fit a new lock and or pin then assemble the clamp as detailed in 1 above WARNING The internal pump batteries must be disposed of in accordance with the manufacturers instructions Lead acid batteries must not be placed in the normal waste stream SIMS Graseby recommend that the condition of the three internal batteries is checked at least annually The batteries will normally last several years but if they should fail to charge then all three batteries must be replaced at the same time The batteries are held in place in the front casing by three pronged flexible plastic mouldings Connect the pump to AC power ensure that the pump is switched off and the yellow AC light is illuminated this will allow maximum DC charge supply from the regulator board Fully charge the batteries for at least 14 hours Remove the AC power and run the pump at 99 9 ml hr If the LOW BATTERY alarm appears on the pump s display before 10 hours has elapsed the
77. he pump This conformity will pre vent the safety of the patient being compromised The processor generates an RS232 compatible signal with a 0 to 5 V output Chip IC7 Fig 4 7 together with the components L3 R47 C22 to C26 converts this 0 to 5 V input signal into two higher level outputs 10 and 40 V IC7 is supplied with a single 5 V power rail and uses two charge pumps to create a 10 and a A0 V supply The communications protocol description may be obtained from Graseby Medical Customer Care The signals on the D connector are shown on Fig 4 22 and the pin connections for the D connector are shown below Table 4 1 RS232 D connector connections 2 5 Connection Not connected RxD TxD Not connected GND DSR handshake RTS 10 V out CTS handshake in Not connected OQ Q N Input output circuit Front panel interface The user interface is via the 22 button membrane front panel Pressing the ON button completes the circuit between pins 1 and 2 on PL2 Fig 4 8 and resets the latch that switches the DC power on The remaining buttons use a 6 x 4 matrix The 6 matrix rows on pins 3 to 8 of PL2 inclusive are pulled high by resistors R14B R14D R15B R15D R16B and R16D and each row is connected to a membrane button and also to the microprocessor The four columns of the matrix pins 9 to 12 PL2 inclusive are connected to IC1 the parallel out serial r
78. ions that have been used at various places through Full name A Ato D AC C CPU cm csk CRC DC Fig Hg Hz kg KVO LED MCI mA mg ml mm PCA PCB PL PWM PFS R F RAM ROM Ampere Analogue to Digital Alternating Current Capacitor Degrees Celsius Central Processing Unit Centimetre Counter sunk Cyclic Redundancy Check Direct Current Figure Gram Mercury Hertz Integrated Circuit Kilogram Keep Vein Open Light Emitting Diode Manually Controlled Infusion Milliampere Milligram Millilitre Millimetre Patient Controlled Analgesia Printed Circuit Board Plug Pulse Width Modulation Prefilled syringe Resistor Radio Frequency Random Access Memory Read Only Memory Volts 3400 Service Manual Issue 6 July 00 Page xi 1 INTRODUCTION FEATURES CLASSIFICATION AND SPECIFICATION 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd Introduction Introduction General information CHAPTER 1 INTRODUCTION FEATURES CLASSIFICATION AND SPECIFICATION The 3400 anaesthesia syringe pump Fig 1 1 is based on a micro controller design and has been purpose developed by Graseby for the administration of anaesthetics mainly in a hospital operating theatre The pump allows a Manually Controlled Infusion and or a bolus to be infused using the normal brands of syringe The infusion entails presetting into the pump both the required infusion rate and the dose of
79. l SIMS Graseby Ltd Contents LIST OF TABLES Table Page 2 1 Syringe size and max auto continuous infusion rate 2 3 4 1 X RS232 D connector connections 4 5 4 2 range for setting RV1 4 8 5 1 Diagnostic fault e 5 1 5 2 Front case spares 5 11 5 2 Size Sensor spares 5 11 54 Rear case spares kit u u 5 11 6 1 LS een 6 1 7 1 Generalassembly 7 1 72 Plunger clamp and half nut assembly 7 6 7 3a Pole clamp assembly non rotating 7 7 7 3b Pole clamp assembly 7 8 7 4 Leadscrew 7 9 7 5 Opto sensors board assembly 7 10 7 6 Size sensors board assembly 7 11 7 7 Mainboard assembly u u 7 12 7 8 Regulator board assembly 7 15 7 9 Distribution board 4 7 17 3400 Service Manual Issue 6 July 00 Page ix Warnings and cautions SIMS Gr
80. lus 4 Yes or No dose Mass units 5 Yes or No LCD contrast 6 Options Baud rate 7 Rate Max Rate 8 Options Configuration mode The optional display language required is selected by scrolling to it Set to YES if you wish the pump to whilst delivering a bolus If a bolus beep is not required then set to NO Set to YES if you require the option to use the preset bolus i e dose is preset for a Hands Free bolus infusion Set to NO if the preset bolus is not required i e the infusion dose is controlled by the user during the Hands On bolus infusion If the MASS UNITS parameter is set to YES then it will be possible to preset the pump to deliver an infusion in mass units e g mg k g h etc If the MASS UNITS is set to NO then ml h will be th e only selection available The options available are 1 to 20 The rates available are 300 600 1200 2400 4800 or 9600 Baud The MAX RATE options available are 50 100 200 400 800 or 1200 ml h The software program automatically sets a maximum continuous infusion rate that depends upon the syringe size that the pump senses see Table 1 This automatic continuous infusion rate will be overridden if the Configuration MAX RATE is set below the automatic rate For example even though the maximum continuous infusion rate for the BD Plastipak 50 ml syringe is 400 ml h see Table 2 1 if the Configuration MAX RATE is setto say 200 ml h then the syringe will only be
81. ly charged when the AC power has been connected to the pump for 14 hours even though the pump itself may be switched off Numerous safety features have been built into both the software and the hardware and the user is warned of such incidents as a power failure or an occlusion by both visible and audible alarms The pump carries out a self testing routine each time it is switched on 3400 Service Manual Issue 6 July 00 1 1 SIMS Graseby Ltd Syringe type Syringe Syringe Syringe Plunger START button and size barrel Size sensor ear clamp and LED ALARM clamp silence Syringe STOP button button Display ear groove and LED Alarm LED 10 0 UNITS ENTER AC Mains LED Bolus button Menu selection Menu Option Keypad Power Power GM0759 A buttons Titles 12 keys ON OFF Figure 1 1 Front view of the 3400 pump Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Features Features The main features of the 3400 are as follows simple to use and easy to service ergonomic styling powered or internal battery powered advanced safety features aselection from several brands of syringe can be made also the pump may be converted to work with the Braun Perfusor 50 ml syringe automatic syringe size sensing acleartext display acomprehensive range of alarms For example the pump gives a Syringe Invalid alarm a syringe Nearly Empty alarm etc designed in consulta
82. n all three batteries should be replaced as detailed below 1 Open the case as detailed on page 2 5 2 Noting their orientation prise out the three faulty batteries Also noting the connections remove all six spade tags 3 Connect three new fully charged 2 V 2 5 AH lead acid D Cell batteries by reversing the steps detailed in 2 above ensuring that the two rubber packing spacers that are attached to the pillars are still in place 4 Close the casing as detailed on page 2 5 In March 1999 SIMS Graseby introduced a new type strengthened and modified front and rear case moulding for their 3000 range of syringe pumps See figures 1 and 2 CORNERS ROUNDED TO MINIMISE RIBS ADDED THE DAMAGE CAUSED BY IMPACT EXTRA STRENGTHENING CORNERS ROUNDED TO MINIMISE CORNERS ROUNDED TO MINIMISE THE DAMAGE CAUSED BY IMPACT PILLAR HEIGHT INCREASED ind TO MINIMISE STRESS Fig 1 Strengthened front case moulding Fig 2 Strengthened rear case moulding If an old style front or rear case becomes damaged and requires replacing then the appropriate repair kit is available from SIMS Graseby There are two kits front or rear case which each contain all the necessary instructions and parts to carry out a repair The contents of the repair kits are shown in Tables 5 2 5 3 and 5 4 overpage The items marked with an asterisk may be obtained individually 5 10 Issue 6 1 August 00 3400 Service Manual SIMS Graseby Ltd
83. nd R11 Res 220R 5 1 8 W 5 off R5 Res 27R 5 1 8 W and R7 Res 10 K 5 1 8 W R8 Res 1K2 596 1 8 W 0128 0013 3412 0228 3410 3705 3410 3003 3410 4505 able for spare parts 3400 Service Manual Issue 6 July 00 7 15 3400 Illustrated Parts List SIMS Graseby Ltd Figure 7 8 Regulator board assembly AC power contd Item Description Part number Remarks R13 Res 390K 5 1 8 W R14 Res 330K 5 1 8W R15 R19 R25 Res 4K7 5 1 8 W 3 off R16 Res 470R 5 1 8W R17 Res IR8 5 1 4 W 818 Res 47K 5 1 8W 3000 SERIES PSU 4 3 130 013 155 gt cs 10 D4 GM0399 B Figure 7 8 Regulator board assembly 7 16 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd 3400 Illustrated Parts List Figure 7 9 Distribution board assembly Item Description Part number Remarks Distribution board assembly 0132 0016 Note The following items are for reference only and are not available for spare parts Connector INC 26 way Ribbon cable 26 way PL1 header 26 way dual row PL2 header 10 way dual row PL3 and PL7 header 6 way PL4 hea
84. ng Check that the plunger clamp Use the linear accuracy gauge see page 6 5 syringe type to BD therate to 400 ml plunger clamp to 60 ml moves a distance of 18 1 0 3 mm See also page 6 5 Purge the system to remove any backlash then run the pump for exactly 90 seconds 8 Occlusion The occlusion thrust is Refer to page 2 6 factory set by applying an opposing force to the plunger clamp This is achieved by using weights 9 Plunger clamp Close the clamp at mid Front edge of clamp must alignment position Run an infusion of be between 8 and 10 atleast 99 9 ml h After 5 _ above surface of top cover seconds check clamp positon See page 6 5 Taper Gauge Note If this test fails then the super nut will have to be loosened this will allow the plunger clamp to be manipulated up or down a small distance thus enabling the required 8 0 to 10 mm gap to be achieved 10 Plunger clamp open leadscrew disengaged Load syringe and set an infusion Open the plunger clamp Press START Press the ALARM button The alarm sounds the red ALARM LED flashes and CLAMP OPEN is displayed The alarm is silenced 11 i Syringe warnings EMPTY OCCLUSION 11 ii ENDED KVO 5 Note Using a BD 60 ml syringe set the rate to 200 ml h Set the syringe to approx 5 ml before the end of travel Press the bolus button twice and hold it until the clamp reaches the end of its travel Set a
85. ng hole in the guide tube 7 Fit a new super nut by reversing steps 2 to 6 detailed above ensuring that the casting pip is placed in the locating hole 8 Close the casing as detailed on page 2 5 9 Carry out the thrust checks and plunger clamp checks adjustments as detailed on page 2 7 and 6 3 respectively Syringe size The syringe size Sensor board see Fig 4 16 and 4 17 and its moulding are fixed adjacent to sensor board the motor at the right hand end of the leadscrew assembly see Fig 7 1 renewal The moulding is fixed in place by two pan head self tapping screws The board is fixed to the moulding by a single self tapping screw 1 Open the casing as detailed on page 2 5 2 Remove the connector PL1 from the Sensor board 3 Remove and retain the two moulding pan head fixing screws 4 Lift out the Sensor moulding and its shim and also the attached board 5 Remove and retain the fixing screw situated between the board and the moulding 6 Carefully prise the board away from its moulding A small amount of resistance may be experienced when prising the three extending opto sensors that are fixed to the board away from the moulding 7 Fit a new sensor board by reversing steps 2 to 6 detailed above and then close the casing as detailed on page 2 5 8 Carry out the syringe size sensors tests as detailed on page 6 1 3400 Service Manual Issue 6 July 00 5 9 Repair procedures SIMS Graseby Ltd Plun
86. or The clutch slotted disc and OPTO1 are located at the left hand end of the leadscrew underneath the opto sensor board The spring is located at the right hand end of the leadscrew The clutch is held engaged by the spring with a pressure sufficient to overcome any resistance from the syringe plunger and the normal back pressure from the infusion line The rotation detector will generate an output that comprises a continuous set of pulses when the leadscrew rotates If there is an occlusion in the line then the back pressure will rise as the pump attempts to force fluid through the line When there is sufficient pressure to overcome the spring pres sure factory set at 800 mm Hg then the leadscrew moves to the right losing contact with the clutch The rotation detector no longer generates an output which results in an occlusion alarm This method of occlusion detection is extremely sensitive as it is the lack of pressure on the clutch that generates the alarm rather than the detection of the movement of the leadscrew as used traditional designs UK patent number 2249 497 Electro mechanical control system Motor speed Motor rotation Mechanical characteristics The processor outputs a Pulse Width Modulated PWM signal which has a mark space ratio proportional to the required speed of the DC motor The motor interface circuit outputs a DC voltage which is varied by the PWM signal A Hall effect sensor is attached to the motor
87. pacer type 2 x3 same as English same as English same as English same as English label 3400 Service Manual Issue 6 July 00 3400 Illustrated Parts List Figure 71 General assembly contd SIMS Graseby Ltd Item Description Part number Remarks 5 Case screws 5001 0345 6 required 6 Motor and gearbox assembly 0132 0015 7 Leadscrew assembly 0132 0086 SeeFig 7 4 8 Occlusion sensing assembly 0131 0067 9 Support tube 0127 0047 10 Plunger clamp assembly SeeFig 7 2 11 Nearly empty flag kit 0131 0122 Two types of flag supplied 12 Syringe barrel clamp assembly 0131 0149 13 Size sensor flag retainer kit 0131 0238 Kit contains Size sensor flag anchor plate assy and Size sensor spring 14 Main PCB assembly 0132 0011 See Fig 7 7 15 Regulator PCB assembly AC Power 0130 0013 See Fig 7 8 16 Transformer 0130 0021 AC Power only 17 Opto sensors board 0128 0090 18 Size sensors PCB assembly 0130 0017 19 Umbilical PCB assembly 0132 0016 See Fig 7 10 20 Pole clamp assembly Non rotating pole clamp 0131 0129 See Fig 7 3a Rotating pole clamp 0131 0083 See Fig 7 3b 21 Plunger clamp open flag 0127 0019 22 Mains cable assembly AC Power 0053 0646 Internal two wire 23 Power cable assembly 0053 0680 PL11 Regulator board to PL6 Umbilical board 24 Battery cyclone type 0801 000 3420 2120 3 required 25 Cable clamp 0127 0043 26 Cordset UK 3700 0046 English with Euro plug 3700 0035 Australian 37
88. r moulding 0130 0024 Infra red emitting diode 2424 1010 D1 D2 amp D3 Photo transistor 2425 3020 Q1 Q2 amp Q3 Screw WN1442 KB25 6 Z 5017 9908 Header 6 way 6410 3750 7471 Size sensor shim 0130 0100 GM0396 A Figure 7 6 Size sensors board assembly 3400 Service Manual Issue 6 July 00 7 11 3400 Illustrated Parts List Figure 7 7 Main board assembly SIMS Graseby Ltd IC skt 32 pin Pillars for sounder 4 off Screw M3 x 16 slot pan head 2 off Nut M3 hex full nylon 4 off Spacer nylon 4 off Housing 2 way Screw 2 5 x 12 slot pan head 4 off Nut M 2 5 full nylon 4 off Terminal strip Socket strip Self adhesive pad 1 off under crystal Note The items below are for reference only and are not available as spare parts Item Description Part number Remarks Main board assembly 0132 001 1 Sounder 3430 1205 2 Sounder restraint kit 0131 0240 Kit contains the following items Nut 2 off screw x 16 2 off Pillar 2 off 3 IC9 Programmed EPROM 0132 0014 4 Display LCD module MGLS19264GLED03 2432 7010 Cl C2 C15 to C17 C21 and C23 to C26 Capacitor 10 uF 16 V S M 10 off C3 to C8 C11 to C14 C18 to C20 C22 C27 C31 to C35 Capacitor 47nF S M 20 off C9 C28 and C29 Capacitor 22 pF S M 3 off C10 Capacitor 100 pF 6 3 V D1 and D2 LED yellow 3 mm D3 LED green 3 mm
89. raseby 5 2 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Cleaning and repair procedures Cleaning CAUTION The 3400 must not be immersed in any liquids Immediately wipe off any liquid that may be spilt on the pump The outer surfaces of the pump can be cleaned by wiping them over with a damp cloth a dilution of soapy water may be used if necessary Repair procedures WARNINGS The repair procedures detailed in the sections that follow must only be carried out by qualified personnel Always disconnect the AC supply from the pump before opening the casing The safety and reliability of the pump may be compromised by the use of parts other than those specified by SIMS Graseby Introduction In several of the repair procedures that follow information has been given on how to remove and renew the whole of the particular assembly Ifa single component within an associated assembly is faulty and can be individually repaired then reference to the appropriate illustrated parts exploded view will enable the single faulty component part to be replaced If a leadscrew assembly or a half nut is repaired then both of the following checks and if necessary the associated adjustments must be carried out thrust checks see page 2 7 plunger clamp checks see page 6 3 Whenever the case is taken apart the Syringe Size Sensors tests detailed on page 6 1 must be carried out Renewal of The pump contains three safety fuse
90. rate of 100 ml h and the syringe to 14 ml START the pump At the end of travel a continuous alarm sounds and the message EMPTY OCCLUSION occurs and the pump stops At 2 x2 ml syringe an alarm sounds and the message ENDED KVO 5 appears When carrying out test No 11 ii on a Perfusor pump ensure that the syringe is set to a minimum of 18 ml 3400 Service Manual Issue 6 July 00 Functional tests SIMS Graseby Ltd Plunger The dual ramp gauge Part number 0131 0084 is used to check that the clamp alarm checks PLUNGER CLAMP OPEN alarm is operating correctly when the plunger clamp is set to two alternative infusing positions as shown below POSITION 2 POSITION 2 L H RAMP R H RAMP GM1086 A Outline of dual ramp gauge Ramp check 1 Fitthe dual ramp gauge onto the pump procedures 2 Close the plunger clamp at a position that is just clear of the bottom end of the right hand ramp 3 Set the pump to infuse at a rate of 200 ml h and then press the START button 4 Check that during the first 30 seconds of travel as the leadscrew is fully engaged that the plunger clamp remains clear of the ramp 5 Check that as the plunger clamp runs up the right hand ramp a CLAMP OPENED alarm occurs within 10 minutes of pressing the START button 6 Repeat the above check with the plunger clamp placed just clear of the left hand ramp If the pump fails the ramp gauge checks on the earlier manufacture
91. rd is situated on the rear casing and is attached to the tray by three pan board head self tapping screws renewal 1 Open the casing as detailed on page 2 5 2 From left to right remove PL1 PL2 PL6 and PL7 from the front of the board 3 Remove and retain the three screws from the front of the Umbilical board and then lift up the board 4 Disconnect PL3 and remove the faulty board 5 Fit a new board by reversing steps 2 to 4 detailed above and then close the casing as detailed on page 2 5 Opto sensors The Opto sensors board see Fig 4 18 and 4 19 is mounted on the rear casing to the left board of the leadscrew see Fig 7 1 In order to remove the Opto board both the Distribution renewal board and PL3 on the Distribution board will have to be removed 1 Open the casing as detailed on page 2 5 2 Remove the umbilical board and disconnect PL3 as detailed above 3 Displace the umbilical tray as detailed on page 5 4 4 Remove and retain the screw that is situated just below the Opto board which holds the plastic cable holder in place 5 Remove and retain the two screws and washers that hold the Opto board in place 6 Ease out the plastic flag from the sensor as the faulty board is lifted out Be careful not to damage the occlusion disc that is situated underneath the opto board 7 Fit a new Opto board by reversing steps 2 to 6 detailed above and then close the casing as detailed on page 2 5 see also page 6
92. rescent circlip 5030 5710 5 External circlip type 7100 010 5030 4010 6 Spirolpin 3 x 26 5028 3408 7 Clamp pad kit 0131 0052 Kit contains the following items clamp bolt clamp pad spacer end cap and screw M3 x 12 GM0132 B Figure 7 3b Pole clamp assembly rotating Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Figure 7 4 Leadscrew assembly 3400 Illustrated Parts List Item Description Part number Remarks 1 Leadscrew sub assembly 0132 0086 2 Leadscrew coupling 0127 0074 GM0236 C Figure 7 4 Leadscrew assembly 3400 Service Manual Issue 6 July 00 7 9 3400 Illustrated Parts List SIMS Graseby Ltd Figure 7 5 Opto sensors board assembly Item Description Part number Remarks Opto sensors board assembly 0128 0090 Note The items below are for reference only and are not available as spare parts Opto interrupter HOA 0875 051 OPTO 1 and OPTO2 Opto interrupter HOA 1882 012 OPTOO Opto sensors cable assembly Sensors flag constraint Oo GMO0397 A Figure 7 5 Opto sensors board assembly 7 10 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd 3400 Illustrated Parts List Figure 7 6 Size sensors board assembly Item Description Part number Remarks Size sensors board assembly 0130 0017 Note The items below are for reference only and are not available as spare parts Size senso
93. respectively Open the casing as detailed on page 2 5 Remove the motor connector PL4 from the Umbilical board and then displace the Distribution tray by removing and retaining the bottom pan head screw Remove the leadscrew assembly together with the gearbox and motor as detailed on page 5 6 Remove the faulty motor and gearbox assembly by pulling it away from the leadscrew assembly Fit the new motor and gearbox assembly by reversing steps 2 to 4 detailed above and then close the casing as detailed on page 2 5 The occlusion clutch and disc assembly see Fig 7 1 are situated on the left hand side of the leadscrew assembly underneath the opto sensors board The leadscrew assembly has to be removed in order to renew the clutch and disc 1 2 Open the pump casing as detailed on 2 5 Remove the Opto sensors board as detailed on page 5 4 Remove the leadscrew assembly as detailed on page 5 6 complete with the motor and gearbox Remove and retain the two screws and the bracket that holds the clutch and disc assembly in place Remove the faulty clutch and disc assembly Fit a new clutch and disc assembly by reversing steps 2 to 4 detailed above and then assemble the casing as detailed on page 2 5 Carry out the thrust checks and plunger clamp checks adjustments as detailed on page 2 7 and 6 3 respectively 3400 Service Manual Issue 6 July 00 5 7 Repair procedures SIMS Graseby Ltd
94. retain the insulating card Remove the faulty Regulator board Fit a new Regulator board by reversing steps 2 and 3 detailed above and then close the casing as detailed on page 2 5 The Main board is mounted on the front casing It is held in place by six pan head self tapping screws 1 2 Open the casing as detailed on page 2 5 Disconnect PL3 the umbilical ribbon cable by exerting a firm pressure and sliding the connector towards the batteries Remove and retain the six fixing screws Lift up the board and disconnect PL1 and PL2 thus allowing the faulty Main board to be removed Fit a new board by reversing steps 2 to 5 detailed above and then close the casing as detailed on page 2 5 The Umbilical tray is situated on the rear casing above the leadscrew assembly To obtain Umbilical access to the various components that are situated underneath the tray the tray will have to board tray be displaced 1 Open the casing as detailed on page 2 5 2 Remove and retain the screw that is situated at the bottom and middle of the tray this will allow the tray to be lifted up a small distance being restricted by the ribbon cables 3 Once the required access has been obtained and the repair carried out the tray can be refitted by replacing the fixing screw and the casing closed as detailed on page 2 5 5 4 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Repair procedures Umbilical The Umbilical boa
95. rom its slot in the SSF and pull out and remove the half nut connecting pin 3 Observing the position of the SSF in the rear of the case and the position of the half nut on the end of the large diameter support tube lift the SSF and support tubes assembly up and away from the pump 4 Remove the large half nut screw and then prise the half nut apart and remove it from the support tube 5 Slide the old replaceable SSF to the left over and away from the small diameter support tube 6 Remove connector PL1 from the size sensor opto moulding and also remove the two screws that hold the moulding in place Note The thickness of the size sensor opto moulding should be 4 65 mm a new moulding and longer fixing screws are supplied in the SSF kit If you have the old type moulding i e 3 00 mm thick then it may be difficult to obtain the correct syringe size sensor results when the new SSF is fitted If difficulty is experienced then contact your local representative or SIMS Graseby Service Department Appendix page 2 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Appendix REASSEMBLY FINAL TESTING Remove any shim s that were attached to the size sensor opto moulding and if required clean the shim area with a suitable solvent The shim sizes provided in the kit are 0 6 1 0 1 2 and 1 4 mm If necessary use a combination of shims to obtain the thickness required up to a maximum of 2 4 mm During production at
96. s MS2000 The first Graseby bedside syringe pump was the MS2000 This was a basic syringe pump capable of infusions within the range of 0 1ml hr to 99 9ml hr It had a totaliser a limited infusion capability a built in pole clamp and was designed for vertical operation The MS2000 was powered by an AC supply or its internal DC batteries This pump is no longer manufactured by SIMS Graseby PCAS The PCAS pump was developed from the MS2000 to satisfy the growing interest in Patient Controlled Analgesia PCA The PCAS was very similar to the MS2000 in both appearance and mechanical design but utilised a different micro processor with the capability of running the extra features required for PCA and was eventually replaced by the 3300 pump A printer port was also incorporated This pump is no longer manufactured by SIMS Graseby 3000 The first pump in the 3000 Series of syringe pumps was the 3000 itself This pump was designed as a low cost alternative to the MS2000 and satisfied the need for a horizontally mounted pump The 3000 did not have an internal battery supply This pump is no longer manufactured by SIMS Graseby 3100 The 3100 syringe pump was developed from the 3000 It is very similar mechanically but the electronic design is superior Dual processors were incorporated along with a vacuum fluorescent text display and internal batteries The maximum infusion rate was increased to 199 9 ml hr and different syringe sizes were able to
97. s fuses These three fuses are all housed on the Regulator board and may be physically located with reference to Fig 4 15 These fuses are as follows e FS1 is a fuse located in the isolated DC line and has 1 A rating FS2isan AC supply time delay fuse and has a rating of 500 mA e 25315 located in the battery supply line and has a 2 rating In order to renew a blown fuse the pump casing must be disassembled as detailed on page 2 5 this action will allow access to all three fuses A blown fuse must only be replaced by a new fuse of the correct rating FS2 can be renewed by pulling off and retaining the fuse protective cover and then prising out the blown fuse Fit the new fuse and replace the protective cover FS1 or FS3 can be renewed by removing and retaining the three pan head fixing screws and insulator in order to displace the Regulator board After replacing FSI or 53 refit the Regulator board and then reassemble the pump casing as detailed on page 2 5 3400 Service Manual Issue 6 July 00 5 3 Repair procedures SIMS Graseby Ltd Regulator board renewal Main board renewal Displacement of The Regulator board is mounted on the rear casing It is held in place by three pan head self tapping screws 1 2 Open the casing as detailed on page 2 5 Disconnect the two spade tags and the two cable connectors PL11 and PL 12 Remove and retain the three screws that hold the board in place also
98. s and the small anti tampering cap above the grub screw must then be fixed into place using a minimal amount of Loctite 414 3400 Service Manual Issue 6 July 00 Appendix page 3 Appendix SIMS Graseby Ltd SETTING THE SIZE SENSOR FLAG 1 Using the 3400 size sensor test gauges see page 5 place the 20 ml minimum gauge Part No 131 170 into the pump s cradle 2 If necessary rotate the adjustment screw until 20 appears on the display and then rotate the adjustment screw counter clockwise until 10 appears on the display Now turn the adjustment screw very carefully clockwise until 20 is once again displayed 3 Using the fingers alternately apply and release several times a gentle pressure at point X see figure A 3 on the size sensor flag and ensure that the pump does not toggle between 10 and 20 ml Fine tuning of the adjustment screw may be necessary to ensure that toggling does not occur 4 Carry out the procedures outlined in paragraph 3 for each of the test gauges 5 If during the tests the pump toggles between 20 and 30 when the 30 ml minimum gauge is in the cradle then turn the adjustment screw clockwise until the pump no longer toggles between these values and then carry out the full set of gauge tests again Note If during the syringe invalid test the pump toggles between syringe invalid and 5 then this state is acceptable as long as the pump detects syringe invalid when the pressure is released i e the
99. s casing enables a precise mechanical location to be achieved for the various components Both the inner and outer metaltubes are made of substantial material in order to eliminate all unwanted flexing The drive system comprises a DC motor working through a gearbox in order to rotate a leadscrew A half nut assembly engages onto the leadscrew and the assembly is also con nected to a steeltube The steel tube is in turn connected to the plunger clamp As the motor spindle rotates the leadscrew rotates and the half nut assembly travels to the left along the leadscrew The half nut assembly pulls the outer of two steel tubes to the left This outer tube travels over and along a support tube the support tube is the length of the pump The plunger clamp moves with the outer tube pushing in the syringe plunger The DC voltage applied to the motor is derived from a pulse width modulated output from the processor A spring loaded toggle mechanism is attached to the bottom of the half nut This toggle mechanism enables the plunger clamp to be physically swung in or out thus rotating the outer metal tube so that the half nut is either fully engaged or disengaged respectively from the leadscrew When the plunger clamp is pulled down the half nut engages with the eadscrew and the clamp itself engages with the end of the syringe The syringe plunger slots into place behind a slotted pair of lips These lips prevent the syringe plung
100. s the 5 V PW1 signal to control the 7 V supply DCSW Thus supply DCSW is switched on and off by the power control circuit R42 protects the power supply from short circuiting if Q11 and Q12 are both active at the same time The motor windings are connected to Vin so the transistor Q8A will be activated by the pres ence of the signal ENABLE MOTOR For the motor to run must be active thus making a motor circuit interlock The 7 V DCSW PWM signal provides the inputs to Mosfet s Q10A and Q10B These two power Mosfet s when conducting enable the motor to draw a high PWM current from the 7 V DC supply Vin L2 and C17 smooth the high PWM current to a level that is acceptable for motor operation Reservoir capacitor C21 reduces excessive peaks on Vin C18 prevents transients from DCSW affecting the operation of Q11 and Q12 To close the control loop the motor speed is monitored by a hall effect sensor on the back of the motor shaft The signal is detected by R41 R40 R74 and IC15F before being fed back to the processor IC12 measures the frequency of this feedback signal and if the signal is outside the limits required for the speed of rotation then IC12 will change the duty cycle of the PWM output By using this feedback system the speed of the motor can be closely controlled to within set limits 3400 Service Manual Issue 6 July 00 4 3 Power control SIMS Graseby Ltd Power control circuit Logic circuit
101. sub circuits are individually described in the sections that follow Processor core Motor interface Power control Sensors interface e Communications RS232 interface nput output interface Processor core circuit Description The Processor core circuit Fig 4 3 forms part of the Main board circuit and is used to process all the operating activities of the pump The processor IC12 has an on chip EEPROM which stores the latest settings of the pump e g the syringe brand IC12 also incorporates the following On board RAM e An Analogue to Digital converter A to D Timing circuitry Four pulse width modulated outputs Communications circuitry Aninternal watchdog IC9 is a 512 kbyte flash EPROM device which is addressed by the processor s decode logic as 16 pages of 32k each A small portion of the EPROM device is reserved by the system for a bootloader program which is capable of programming the rest of the device from data supplied via the pump s RS232 interface The remainder of the device stores the pump s system software The entire pump operating software may be reprogrammed via the RS232 port Pins 70 and 71 on IC12 control the operation of the processor and both signals are held high in order to set the processor to address IC9 for its operating software Pins 44 and 43 on IC12 are held at Vcc and ground respectively as the reference inputs to the processor s built in A to D conv
102. supply Vcc RAM and clock supply Chip IC4 Fig 4 5 is a linear regulator which provides a 5 V DC supply Vcc for the logic circuits C14 and C10 are decoupling capacitors IC5B and IC5C form set reset latch to operate the power MOSFET Q8B The latch is triggered by a high pulse POWEROFF from the processor causing Q8B to turn off and disconnect the power When tripped the latch cannot be reset by the processor the reset is by a high pulse from the keyboard by pressing the ON button Q7 R28 and R29 form a logic level translator to raise the 0 to 5 V logic levels to 0 to 7 V logic levels for IC5C which has a permanent 7 V supply C15 C16 R28 and R30 overcome the effects of any transients D19 prevents C16 from discharging into IC5B in the event of Vdd being removed The supervisor chip IC10 transfers the power for the RAM and the Real Time Clock RTC from the regulated 5 V supply Vcc to Vcc when the main power and hence is turned off This preserves the memory held in RAM and also keeps the RTC running R31 R26 and C11 bandgap references D20 and D21 and transistor Q6 supply a constant voltage Vcc of 3 V Sensors interface circuit Introduction The six opto sensors Fig 4 16 and 4 18 used in the 3400 are multiplexed onto three lines into the processor and are used to carry out sensing functions that include the following syringe size sensing whether the syringe clamp is open or closed
103. syringe and move the plunger clamp to the closed forward position Press the START button Check that the bolus facility operates correctly see Instruction Manual Check that the infusion rate can be changed see Instruction Manual Press STOP SIMS Graseby Ltd Correct result The display goes blank but the AC LED remains lit As in Step 3 initial power ON Check that the rate display shows the following 0 9 ml h then 0 0 ml h 123 ml h then 0 0 ml h 456 ml h then 0 0 789 ml h then 0 0 Display shows volume infused since last reset then resets to zero when the reset button is pressed The syringe type and size is briefly displayed the infusion starts with the START LED flashing and the running indication arrows on the display also flashing Alarm and start lamps flash and the display shows the bolus delivered The displayed rate of infusion changes The pump changes to its set up mode contd 6 2 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Functional tests Step Test Method Correct result 6 AC power With a syringe inserted The alarm sounds intermit failure press the START button to tently start an infusion then MAINS FAIL switch off the AC supply is displayed also intermittently externally and the pump continues running under battery power Switch on the AC supply The AC lamp lights 7 Linear accuracy Set the followi
104. the securing plate into the base of the pump The leadscrew assembly see Fig 7 4 is held in the rear casing by two bearing clamp plates and is also held under moveable tension by a strong spring The occlusion thrust is set by adjusting the tension of the spring A plastic coupling bush on the right hand side of the leadscrew is key way fitted on its right hand side which enables it to be coupled to the gear box The other side of the coupling screws into the leadscrew with a left hand thread this threading prevents the motor from unscrewing the leadscrew coupling Removal 1 Open the pump casing as detailed on page 2 5 2 Displace the Umbilical board tray see page 5 4 3 Displace the Regulator board by removing and retaining the three pan head screws and the top insulating board This displacement will assist in the following procedures 4 Remove and retain the two pan head screws that hold the Sensor moulding assembly and the square lay shaft in place 5 Place the plunger clamp almost to the end of its left hand travel 6 Remove and retain the two pan head self tapping screws that hold the right hand plastic clamp bracket in place remove and retain the bracket 7 Raising up the syringe size sensor lever and noting the separate case grooves that the leadscrew bearing and the gearbox fit in to lift out the faulty leadscrew assembly together with the motor and gear box 8 The motor and gearbox are coupled to the right han
105. tion with users Classification The following classification information applies to the 3400 and is to the IEC 601 1 1988 requirement Insulation The pump is a Class II double insulated device Also classified as internally powered equipment CF Cardiac Floating insulation on all inputs Fluid ingress In the normal operating position the pump is protected against drops of water falling vertically onto it It is not safe to use the pump in more severe wet conditions Safety The pump is not suitable for use in the presence of inflammable anaesthetics Caution mixture with air with oxygen or nitrous oxide As with all computer electronic equipment high powered electromagnetic radiation such as diathermy equipment in close proximity can affect operation although no hazard will be caused Mode of Continuous operation 3400 Service Manual Issue 6 July 00 1 3 Specification Specification SIMS Graseby Ltd Graseby pumps are subject to continual development and the 3400 may therefore differ slightly from the following specification Dimensions Weight AC supply Battery type Battery life Syringe brands Flow rate Totaliser Adjustable occlusion pressure Temperature range Drive accuracy Design standards Elec safety Languages available 325 mm long x 195 mm high x 115 mm deep with the pole clamp fitted and the
106. uge Test No 7 see page 6 3 1 Place the gauge onto the pump with the syringe plunger almost fully extended 2 Move the pump s plunger clamp to the left until the gauge plunger is a short distance away from the metal rod that activates the dial indicator 3 Turn the pump on and check that the pump shows that the syringe brand and size is BD 60 ml 4 Press the PURGE button until the syringe plunger just activates the gauge indicator This action will ensure that any pump backlash is removed 5 Rotate the outer rim of the gauge to set both dial indicators to zero 6 Setthe pump to deliver an infusion rate at 400 ml hr 7 Checkthat the dial records that the plunger clamp has moved a distance of 18 1 0 3 mm in 90 seconds See also page 6 3 The taper gauge part number 0131 0227 enables the gap between the pump s plunger clamp and the case to be measured accurately This measurement is important as it ensures that the plunger clamp will engage onto the flanges of the smaller sized syringes correctly 8 9 10 1f 13 SEEN Taper gauge Test No 9 see page 6 3 1 Switch the pump on and set the rate to at least 99 9 ml hour 2 Close the plunger clamp at approximately its mid position 3 Run the pump for 5 seconds 4 Using the taper gauge check that the front edge of the plunger clamp is between 8 0 mm and 10 0 mm above the surface of the case 3400 Service Manual Issue 6 July 00 6 5 CHAPTER 7 ILLUSTRA
107. ve to the next parameter next parameter Diagnostic The five parameters that can be viewed by scrolling when in the Diagnostic mode will be displays similar to the displays shown below VERSION 2 06 this display shows the version of software that is installed in the pump Note since the 3400 is field up gradable via its serial port the version number on the label of the EPROM may differ from the installed version The displayed version is to be taken as correct e 053 this shows the Cyclic Redundancy Check CRC e TOTAL VOLUME this shows the total volume infused since the pump was manufactured e TOTALHOURS this shows the total hours that the pump has been in operation since the pump was manufactured e VOLTAGE 6 9 this shows the value of the DC voltage that is supplied to the main board 2 4 Issue 6 July 00 3400 Service Manual SIMS Graseby Ltd Exiting from the Diagnosticmode mode Disassembly of casing Press the STOP button when in any Diagnostic parameter in order to exit from the Diagnostic Disassembly and assembly of casing Taking the casing apart Assembly WARNINGS The following procedures must only be carried out by qualified personnel Electric shock hazard The pump must be disconnected from the AC power supply before opening the casing The casing of the pump will have to be opened in order to carry out any adjustments that may be required to the occlusion thrust
108. y voltage test Keyboard test This test checks for shorted keys The pump s settings are stored in EEPROM in the processor 3 4 Issue 6 July 00 3400 Service Manual CHAPTER 4 CIRCUIT DESCRIPTIONS 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd Circuit descriptions Introduction CHAPTER 4 CIRCUIT DESCRIPTIONS This Chapter describes the action of the circuits that are used to operate the 3400 and also shows the associated circuit diagrams and circuit board layouts The 3400 contains five separate circuit boards as follows Mainboard Regulator board Syringe size sensors board Opto sensors board Umbilical board The overall block diagram for the 3400 showing the inter connections between the various circuits is given in Fig 4 1 The Syringe size sensors board Fig 4 16 and 4 17 and the Opto sensors board Fig 4 18 and 4 19 provide a mounting base for the sensors and also junction points for their outputs The Umbilical board rear casing is used to link the Regulator board the two Sensor boards and the serial interface port to the Main board front casing via a 26 way cable Fig 7 1 The five circuits are individually described in the sections that follow 3400 Service Manual Issue 6 July 00 4 1 Main board sub circuits SIMS Graseby Ltd Main board circuit Sub circuits The Main board circuit is shown in Fig 4 2 and comprises the following sub circuits These
109. yringe brands Mechanical To reselect the various syringe brands carry out the following mechanical and programming procedures procedures 1 Take the case apart page 2 5 2 Replace the original standard nearly empty 3 Remove the nylon spacer from the left hand side of the inner metal tube 4 Remove the adhesive plunger clamp plate 5 Reassemble the case 6 Remove the adhesive P label from the front of the pump Programming 1 With the pump switched ON and procedures BRAUN PERFUSOR 50 ml displayed within the Configuration mode page 2 1 simultaneously press the following three buttons ALARM BOLUS and OFF in order to set the Configuration mode so that the various brands of syringe may be selected 2 Set the pump to the brand of syringe that is going to be used and then press the STOP button in preparation for the next infusion Bes Adhesive m p p label O O O PT BAOO LN Adhesive ASS plunger AA 9 clamp plate ES S v Nearly empty A flag Z en NK N S N Nylon j YN YV spacer 22 oN tube Flag bias GM1132 A lt SS lt 7 Figure 8 1 Braun Perfusor conversion parts required 8 2 Issue 6 July 00 3400 Service Manual APPENDIX FITMENT OF NEW MODIFIED SIZE SENZOR FLAG 3400 ANAESTHESIA SYRINGE PUMP SIMS Graseby Ltd Appendix INTRODUCTION APPENDIX FITMENT OF NEW MODIFIED

GRASEBY 3400 Infusion Pump Service Manual

Contents

Download Pdf Manuals

Related Search

Related Contents