Transcript
4. STATIM 5000 Calibration
96-106775 Rev 5.0
WARNINGS AND PRECAUTIONS If you have questions about the unit you are repairing, please do not hesitate to contact your local SciCan representative for information. Also, the STATIM is heavy. Exercise caution and seek assistance when lifting or carrying units.
EXERCISE CAUTION •
Hazardous voltages are accessible when the cover is removed.
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Disconnect the power cord before servicing the power mains portion of the controller board and associated devices.
PERFORM TESTS •
If the cover is removed, a dielectric strength test (Hi-Pot) AND a protective bonding impedance test (ground continuity) must be performed on the STATIM when the work is completed and after the cover has been returned to the unit.
PROTECT THE UNIT
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Use only steam-process distilled water in the STATIM.
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The STATIM contains electronic circuitry that is static sensitive. Always wear a static strap when working with or near printed wiring boards. In addition, use static footstraps, grounding mats and grounded work surfaces when servicing microprocessor devices. Transport boards and devices in static protected bags.
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Ensure there is sufficient steam-process distilled water in the STATIM before activating the pump.
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In order to ensure adherence to the applicable safety agency approvals, state, provincial, regional and national laws, replace components with SciCan approved parts only.
5000/5000S/5000 G4 Service Guide STATIM STATIM 2000/2000S Service Guide
4. STATIM 5000 Calibration
96-106775 Rev 5.0
STATIM 5000 Calibration NOTE: Calibration Procedure 1: for Rev 3.x or 4.x Boards applies ONLY to STATIM 2000 non S units.
Calibration Procedure 2: for Rev 2.x or 5.x Boards, Software R1.xx or R2.xx This calibration procedure is for Statim 2000/5000 non S units (1995-2005) with revision 2.x or 5.x controller boards and revision 1.xx or 2.xx software. Important: • • • • • •
Incorrect or inaccurate calibration may cause unsuccessful sterilization of instruments. Always calibrate the thermocouples after a thermocouple replacement, thermocouple bend or disconnect, controller board replacement or microprocessor / EEPROM replacement, steam generator replacement or probe bracket replacement. Make sure that there is sufficient steam-process distilled water in the unit prior to starting calibration. Do not place the digital reference thermometer in direct sunlight, on the armature or on any other hot surfaces. This may cause improper values on the temperature readout. There are specific error messages (cycle faults) for these board/software types, which can be found in the Troubleshooting Cycle Faults section. In calibration mode, no error messages are displayed.
Calibration Procedure Calibration of these boards should be done in the following order: 1. Reference voltage verification / adjustment 2. Steam generator thermocouple calibration (automatic) 3. Chamber thermocouple calibration 4. Steam generator re-calibration (automatic) Required equipment: • Control box - 01-103141S • Digital voltmeter • Calibration cassette (appropriate to model) • Potentiometer trimmer • Calibration jumper • Digital thermometer Setting up the unit for calibration: • Before starting calibration, turn the STATIM OFF and remove the cover. • Check that there is sufficient steam process distilled water in the reservoir, and that the calibration cassette (6) is correctly engaged in the STATIM. • Install the thermocouple (7) into the cassette and attach the digital thermometer (8). • Ensure that the thermocouple and digital thermometer have matched serial numbers. • Install the calibration jumper (11) to controller board pins marked W1 (10).
STATIM 2000/2000S
STATIM 5000/5000S/5000 G4 ServiceService Guide
Guide
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4. STATIM 5000 Calibration
10, 11
96-106775 Rev 5.0
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5 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
Control box Controller board SELECT knob Digital voltmeter Vref potentiometer Calibration cassette Thermocouple Digital thermometer TC-ADJ potentiometer Calibration jumper connection Calibration jumper (not shown)
Figure 1 (Note: STATIM 2000 shown)
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5000/5000S/5000 G4 Service Guide STATIM STATIM 2000/2000S Service Guide
4. STATIM 5000 Calibration
96-106775 Rev 5.0
1. R eference voltage verification / adjustment To verify / adjust the reference voltage: 1. Turn the unit OFF. 2. Connect the Control Box (1) to the Controller Board (2). 3. Connect the digital voltmeter (4) to the Vref terminals on the control box. 4. Set the voltmeter to read DC Volts with a resolution of 1mV. 5. Power the unit ON. 6. Adjust the Vref potentiometer until Vref is 2.520 V ± 0.001. 7. Once Vref is adjusted, apply a drop of non-conducting lacquer or nail polish to the adjustment screw of the potentiometer. 2. S team generator thermocouple calibration To calibrate the steam generator thermocouple: 1. Turn the unit OFF and install a calibration jumper on Controller Board header W1. 2. Turn the unit ON. The LCD should appear and be similar to the diagram below: Steam generator offset value in hexadecimal
Chamber offset value in hexadecimal 00>>CALIBRATING*<>CALIBRATING*<>CALIBRATING*<
