CODEL Energy Tech 401 Installation, Operation And Maintenance Manual page 114

EnergyTech 401
Operating and Maintenance Manual
6.3.2.1 Detector signals
saturated
(Sat# over 50)
6.3.2.2 Low detector levels
(D1 <3,000)
6.3.2.3 Cal factor out of range
6.3.2.4 Modulation frequency is
out of 30Hz - 45Hz range
6.3.2.5 Reference signal failure
If a fault condition is recognised by the instrument the minutes, hours and days averages will not be updated.
Page: 114
The following fault conditions are recognised by the instrument.
possible causes :
- incorrect detector gain adjustment.
- instrument conditioned during high opacity conditions which have now
cleared.
possible causes :
- high opacity in duct.
- dirty windows.
- incorrect detector gain adjustment.
- heater cartridge failure.
possible causes :
- calibration conducted during unstable duct conditions.
- poor alignment.
- incorrect detector gain adjustment.
possible causes :
- poor supply voltage.
- faulty chopper motor.
- incorrect setting within transmitter.
possible causes :
- chopper motor failure.
NOTE
Further information (Corrective Maintenance) is provided in the fault-finding
tables in
CODEL
Monitoring Solutions