SciCan STATIM 2000 Service Manual page 108

5. STAT IM 2000S Calibration
9. Press the STOP button on the control box to end the steam generator calibration cycle
10. Press STOP a second time to reset the unit.
3. Chamber thermocouple and pressure transducer calibration
To calibrate the chamber thermocouple and pressure transducer:
1. Turn the power switch to OFF. Ensure the calibration jumper is in place and turn the power
2. With the calibration cassette removed and the pressure tubing disconnected at both ends,
3. Fully insert the calibration cassette and connect the pressure calibration tubing.
4. To start a chamber thermocouple / pressure transducer calibration cycle, press and
5. Immediately after pressing the START button, use the UNWRAPPED and WRAPPED cycle
6. Allow the chamber to reach the sterilization temperature. As pressure builds in the
7. Once the unit has reached sterilization and the temperature and pressure are in equilibrium
8. Wait ten seconds after the water pump turns off to allow the pressure and temperature
9. IMPORTANT NOTE: When the initial pressure and temperature readings have been
Page 106
and to depressurize the cassette.
switch ON. The LCD will read (for example):
compare the measured chamber pressure reading on the LCD to the pressure displayed
on the reference meter. The difference between them is the pressure transducer offset.
release the UNWRAPPED cycle button and then press START. The STAT IM 2000S will run
a regular UNWRAPPED cycle, but continue to display calibration information on the LCD.
buttons to make the measured chamber pressure reading displayed on the LCD equal
to the reference meter reading. Note that once the boiler begins producing steam the
pressure cannot be accurately zero-adjusted to atmospheric pressure. TIP: The offset for
the measured chamber pressure is increased or decreased in 0.5 kPa steps. Each press of
the UNWRAPPED button adds 0.5 kPa and each press of the WRAPPED button subtracts
0.5 kPa.
chamber check for leaks in the cassette, associated piping and fittings. A steam leak in
the system will introduce errors in the measurement and will result in improper calibration
and may compromise sterilization conditions.
compare the chamber temperature displayed on the LCD with the temperature displayed
on the temperature reference meter. Adjust the TC-ADJ potentiometer on the controller
board until the LCD temperature matches the reference temperature to within ± 0.25°C.
readings to stabilize before making any adjustments.
adjusted, and to ensure equilibrium of the calibration, compare the measured chamber
pressure and the calculated chamber pressure displayed on the LCD. They should be
within 1 kPa of each other during equilibrium. If not, adjust the pressure offset using the
membrane keypad by ONE UNIT ONLY. If the readings still differ by more than 1 kPa,
using the TC-ADJ potentiometer adjust the chamber offset by ONE unit. If the readings still
differ by more than 1 kPa abort the cycle and retry the chamber thermocouple / pressure
transducer calibration.
STAT IM 2000/2000S
F1 99 00 --- F1
+1.00°C 20.00°C
STATIM 2000/2000S/2000 G4 Service Guide
96-108639 Rev 3.0
Service Guide