Ammonia Detector - Manual
NH3/ENH3
April.10
Automatikprodukter
Electrochemical Transmitter
7.2
GCD-05_Bus Mode
Trouble
Cause
Solution
Yellow LED not shining
Power voltage not applied
Measure tension at X4:Pin 1 (+) and 2 (-)
PCB not plugged in correctly at X4/X5
Replug PCB correctly
Wire break
Check wiring
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Yellow LED not flashing
No communication at the transmitter
Transmitter not addressed, check bus wiring
incl. topology and termination
Voltage < 16 V
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No control voltage at calibration
Jumper V-A not set
Set the jumper. Remove it after calibration!
2
Cross Sensitivity Data
The cross sensivity depends on the used transmitter type and can be read from the table Technical Data (see 9.).
Other gases can have an influence on the sensivity, too.
The table does not claim to be complete.
The indicated sensivity data are only standard values referring to new sensor elements.
