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Optidew User's Manual
Possible Fault Codes
No.
06
Mirror Overheat
02
Optics Fault (Search Fail)
03
Optics Fault (< Min Limit)
04
Optics Fault (> Max Limit)
08
Heating Saturation
09
Cooling Saturation
01
Mirror Pt1000 Fault
04
Temp. Probe Fault
07
Pressure Tx. Fault
17
Mirror Contaminated
11
Mirror Pt1000 Fault (Open)
12
Mirror Pt1000 Fault (Low)
13
Mirror Pt1000 Fault (High)
08
Temp. Probe Fault (Open)
09
Temp. Probe Fault (Low)
10
Temp. Probe Fault (High)
14
Pressure Tx. Fault (Open)
15
Pressure Tx. Fault (Alarm)
16
Pressure Tx. Fault (Fail)
Kahn Instruments
Figure 30
Name
Mirror Temperature above 266°F/130°C
Unable to establish clean mirror condition
Signal below allowable limit
Signal above allowable limit
TEC drive saturated in heating mode beyond
allowable time limit
TEC drive saturated in cooling mode beyond
allowable time limit
Chilled Mirror sensor internal Pt1000 fault
External temperature probe fault
External pressure transmitter fault
Mirror requires cleaning followed by Optics
Calibration
Chilled Mirror sensor Pt1000 open circuit
Chilled Mirror sensor Pt1000 short circuit/below
lower limit
Chilled Mirror sensor Pt1000 above upper limit
External temperature probe open circuit
External temperature probe short circuit/below
lower limit
External temperature probe above upper limit
Pressure transmitter signal < 0.2mA (open circuit)
Pressure transmitter signal 3.6-3.8mA OR 20.5-
21mA
Pressure transmitter signal > 21mA, or < 3.6mA
System alarm
Description
MAINTENANCE
41
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