INFICON Helium Leak Detector Modul1000 - Manual (Page 114)

10-2
Error Messages and Warnings
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W18
Service interval of fan filter has
expired!
The service interval for the fan filter chassis has expired!
Replace the fan filter and acknowledge the service.
W21
EEPROM time-out for write
instruction
Write instruction from the MC68 to the EEPROM was not acknowledged.
E-EPROM defective.
Defect in cross wiring
MC 68 is defective
W22
Overflow of EEPROM
parameter queue Software problem.
Please contact the INFICON Service!
E23
External supply voltage (24 V)
too high
Voltage monitoring input AD24 A/B > 11.5 V.
External power supply on one of the 24 V outputs of the terminal connector of the
interface board.
E24
External supply voltage (24 V)
too low
Voltage monitoring input AD 24 A/B < 2.5 V.
Check the fuses F1 to F4 on the interface board. At least 2 fuses failed.
E25
Reduced valve voltage too low
(<7 V)
Reduced valve voltage on E/A board (<7V)
E/A board is defective.
MC 68 control board is defective..
E26 Monitoring voltage F3, F4
Voltage monitoring for fuses F3, F4 AD 24 A < 5,6 V.
Fuse F3 interface board (SSK) defective.
E27 Monitoring voltage F3, F4
Voltage monitoring for fuses F3, F4 AD 24 A < 7.8 V.
Fuse F4 interface board (SSK) defective.
W28
Real time clock has been reset!
Please enter date and time!
Real time clock has been reset!
Battery at MC68 is discharged or faulty.
MC68 has been replaced.
E29 24V supply for fans is defective.
Power supply unit for fans is defective < 20 V.
Fuse F11 on wiring backplane has blown.
Fan polarity has been interchanged.
W31
The offset voltage of the pre-
amplifier is too high. (>5 mV)
Offset voltage of pre-amplifier without emission > 5 mV.
The pre-amplifier is faulty.
Defective voltage supply of pre-amplifier.
Defective MC 68 control board.
W32
Pre-amplifier temperature is too
high. (>60°C)
The temperature of the ambience is too high.
Heat accumulation due to unfavourable placement of the module.
Air filter dirty and have to be changed.
The temperature sensor in the pre-amplifier is defective.
Defective MC 68 control board.
W33
Pre-amplifier temperatre is too
low. (<2°C)
Ambient temperature is too high.
The temperature sensor in the pre-amplifier is defective.
Defective MC 68 control board.
No. Displayed Message Description and possible solutions