COMINOX STERILCLAVE 18 B, Service Manual

Page: 36 / 76

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3. Replacing the PT1 temperature probe
-
Replace chamber temperature probe 39 .
-
Select option 3 in the Technician Menu (Board calibration PT1 page 12) and proceed
with calibration.
-
Select option 3 in the Technician Menu (PT1 Probe calibration page 15) and enter the R0
value.
Adjusting pressure setting
To adjust pressure setting select option 6 from the Technician Menu (TP Board calibration
on page 4) and follow the instructions.
Replace the transducer if the error between the pressure shown on the display and the
pressure indicated by an external calibration tool exceeds ±50 mbar.
• If the alarm is not resolved, possible causes are:
- sudden leakage from a valve or a disconnected pipe;
- faulty chamber temperature probe
39 ;
- faulty transducer 38 ;
- faulty electronic board.
Level probe alarm
This alarm indicates inconsistent operation of the level probes in the clean water tank 10 .
For example, if the maximum level probe detects presence of liquid, minimum level probe
and tank safety probe should also detect it.
The steriliser shows this message in STAND BY mode.
• Empty, clean and fill clean water tank 10 : the operation must be performed at
environmental temperature.
• Check the level probes.
• Replace the level probe insulation (see page 29).
•
Check water quality: Excessively pure water is corrosive (it removes salts from metals)
and cannot be detected by the probes. In particular, DO NOT use bidistilled water or
water with a conductivity of less than 1 µS/cm.
Coil alarm
This alarm indicates that the coil element circuit is either open or interrupted.
The alarm is displayed on the steriliser in any condition coil circuit is NOT detected as
closed.
Perform the following checks in the order shown:
• Rearm safety thermostat 17 by removing the plug and pressing the button underneath.
The thermostat may be rearmed only if chamber 09 has cooled down. To speed up
cooling, open door 16 , which will however be locked. Door 16 can be opened by
inserting unlocking tool 37 (provided to service technicians) into the special hole on the
right under the door.
Alarms