STATIM 7000 Service Manual – S Class Calibration
57
NOTE
: I
n order to account for the temperature drift of the pressure sensor, the
field PO has two functions:
1. When chamber pressure is below 115kPa the offset will have one
value POA – Pressure Offset Atmospheric.
2. When chamber pressure is higher than 115kPa the PO field will
switch to indicate the POS – Pressure Offset Sterilization.
CHAMBER CALIBRATION:
(Voltage reading, Temperature and Pressure)
6. To start the calibration cycle press and release the Unwrapped cycle button and then
press START button. The system will run a normal sterilization cycle, but the LCD will
show the calibration display. The calibration cycle starts with the
pressure sensor
calibration
(see screen below). This pressure offset adjustment has to be done
within 30 seconds.
7. By using the Unwrapped key (+) and Wrapped Key (-) adjust pressure offset (at
atmospheric pressure) until the internal sensor pressure reading (as displayed in the
PPP.P field) matches the pressure reading on the external pressure meter within
±
0.5Kpa. The PO field will show the new pressure offset, which in this case (pressure
below 115kPa) represents
POA
(Pressure Offset Atmospheric).
8. After 30 seconds, the calibration cycle will continue by entering the heating up phase
and the screen will change for the
Voltage Reading calibration
(see screen below):
Screen Representation
VVV = Voltage measured by unit
CCC = Voltage calibration offset.
Keypad functions at this time
Unwrapped
Increase current field
Wrapped
Decrease current field
Rubber and Plastics
Select and return to main menu
Stop
Exit, without saving, to normal mode of operation
PPP.P PO TTT.T TO
Adjust Press!
CCC.C
Voltage Calibration
V=VVV VCAL=CCC