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... 00 05
MUSH_HAND_OPEN
... 00 0B
UNI_DIRECTION_VALVE
x
278
... 01 16 ...
CON:
DIAG_PUC_HIGH_PRS_ALARM_FAILURE.
x
279
... 01 17
CON: CON:
DIAG_PUC_UPPER_PRS_LIMIT_NOT_SET
Sub data:
... AB CD
UPPER_PRESSURE_LIMIT_SETTING
x
280
... 01 18 ...
CON: DIAG_CAL_SUPPLY_GAS_FAILURE
MV5
OV12
Fault: The hardware high pressure alarm is not working when tested in PuC. The
Checking alarm detectors-test fails.
Description: Refer to information regarding "Checking alarm detectors" in chapter
"Service procedures", section "Pre-use check".
The system will be pressurized with fresh gas until the hardware pressure alarm, 5
cmH2O above set UPL, is activated.
The diagnostic log appears when:
•
Alarm is not activated and the Insp. pressure is higher than the set
UPL +10 cmH2O.
•
Alarm is activated, but the Insp. pressure is less than the set UPL.
•
Alarm is activated, but the Insp. pressure is not decreasing after
1 second when evacuating system.
What to do:
1.
Check for obstruction in the EVAC system.
2.
Replace the UPL potentiometer.
3.
Replace PC 1737 Measuring.
4.
Replace PC 1750 Transducer alt. PC 1781 (INSP).
Fault: The UPL knob is not set correctly when PuC starts.
Description: Refer to information regarding "Check of control panel settings and of
gas supply" in chapter "Service procedures", section "Pre-use check".
The PUC starts with a check that the UPL is set between 60-80 cmH2O.
What to do:
1.
Set UPL knob to 70 cmH2O.
2.
Check/replace UPL control panel potentiometer. The knob may be
incorrectly mounted on the potentiometer shaft.
Shows the UPL knob setting (1/100 cmH2O) in hexadecimal form.
Fault: Gas supply missing during Calibration.
Description: Refer to information regarding "Check of control panel settings and of
gas supply" in chapter "Service procedures", section "Calibration".
Both AIR- and O2 supply gas is disconnected from the system or supply pressure is
not enough when starting Calibration.
What to do:
1.
Connect gas supply or increase gas supply pressure. Required gas supply
pressure: 280 – 600 kPa.
2.
Replace PC 1720 Wall pressure.
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