Enotec COMTEC 6000 - O2 Reads Higher than Expected, CO Reads Lower; No COe-Measuring Value; Arrow Instead of Value; No Measuring Value for O2; Empty Bar Graph

Troubleshooting Installation and Operation Manual - COMTEC
®
6000
48 Doc.-ID: COM6000_11022020_EN
Local Displays correct, Output not correct
Possible reasons Procedure
Electronic unit is defective
Check measuring range. Check whether the current
value is outside the measuring range
Electronic unit is defective Measure the mA output on the strip terminal.
O
2
reads higher than expected, and CO
e
reads lower than expected
Possible reasons Procedure
This may be due to a poor seal of the CO
e
sensor coupling
located in the terminal box housing. If the stainless steel nut
is not tight enough the O-ring seal allows ambient air to
enter into the CO
e
senor mounting tube which influences
the sensors readings
Tighten or replace the CO
e
sensor coupling assembly.
No COe-Measuring Value; Arrow instead of a value
Possible reasons Procedure
The physical measuring range has been exceeded Perform a O
2
+ CO
e
sensor check
An error has occurred with the CO
e
sensor Check all electrical connections.
No Measuring Value for O
2
; empty Bar Graph
Possible reasons Procedure
O
2
value out of the coverage of the electronic unit, for
example caused by a low O
2
concentration in connection
with a high COe concentration
Perform an O
2
+ CO
e
sensor check