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STAT
IM
2000/2000S Service Guide
96-108639 Rev 3.0
4. STAT
IM
2000 Calibration
STATIM 2000/2000S/2000 G4 Service Guide
1. Reference Voltage Verification / Adjustment
To verify / adjust the reference voltage:
1. Ensure the unit is 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 VRH potentiometer (5) until VREF is 4.000 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. Steam generator thermocouple calibration
To calibrate the steam generator thermocouple:
1. Turn the control box SELECT knob to blr-chm. This signal is the difference between the
chamber and steam generator thermocouples.
2. Set the voltmeter (4) to read DC Volts with a resolution of 1 mV and locate the TC-BLR (10)
potentiometer on the controller board.
3. Select the UNWRAPPED INSTRUMENT CYCLE button on the control box, then press
START.
4. Follow the phases of the cycle as they are displayed on the LCD (warming up, purging air,
pressurization, sterilization). Calibration occurs during the sterilization phase.
5. With 2 minutes and 25 seconds left in the sterilization cycle adjust the TC-BLR
potentiometer until the voltmeter reads 0.000 V ± 0.030 V.
2. Chamber thermocouple calibration
Tip: There are no quick ways to calibrate a unit. Calibration requires a number of readings
and adjustments to achieve the required values. Wait for equipment readings to stabilize and
record them as quickly and precisely as possible.
To calibrate the chamber thermocouple:
1. Install the thermocouple (7) into the calibration cassette (6) and attach the digital
thermometer (8). Ensure that the thermocouple and digital thermometer have matched
serial numbers.
2. Turn the control box (1) SELECT knob (3) to chm X gain.
3. Locate the TC-CHM potentiometer (9) on the controller board (2).
4. Set the meter (5) to read DC Volts with a resolution of 1 mV.
5. Select the WRAPPED INSTRUMENT CYCLE button on the control box and release
6. Press START.
7. Follow the phases of the cycle as they are displayed on the LCD (warming up, purging air,
pressurization, sterilization). Calibration occurs during the sterilization phase.
8. After approximately 2 minutes into the sterilization phase look for the digital thermometer
(8) reading to remain constant for at least 2 seconds and record the values of the digital
thermometer (TCHM) and digital voltmeter (VM).
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