Automatikprodukter
Ammonia detector - Manual
NH3/ENH3
April.10
Electrochemical Transmitter
5.3
Calibration with
GCD-05 Service Tool
•
Connect the GCD-05 Service Tool to the transmitter, open menu ”Calibration”.
•
Enter measuring range and test gas concentration.
•
Connect calibration adapter carefully to the sensor element
•
Apply synthetic air (150 ml/min; 1 Bar (14.5 psi ) ± 10%), or NH
3
-free ambient air.
•
Wait until the measuring value is stable, and then perform automatic zero calibration.
•
Apply calibration test gas NH
3
(20 to 70 % of the measurement range) to the sensor (0,3 l/min; 1 Bar ± 10%).
•
Wait until the measuring value is stable, and then perform automatic gain calibration.
•
Remove calibration adapter carefully by turning lightly. Check the sensor for correct mounting!
By limiting the gain factor, calibration will not be possible any more when the sensitivity of the sensor reaches
a residual sensitivity of 30 %. In this case the sensor has to be replaced.
Further information can be taken from the user manual of the GCD-05 Service Tool.
5.4
Calibration with GCD-05 Configuration and Calibration Software
•
Connect the PC via USB/RS-485 communication set to the transmitter, open menu ”Calibration”.
•
Enter measuring range and test gas concentration.
•
Connect calibration adapter carefully to the sensor element
•
Apply synthetic air (150 ml/min; 1 Bar (14.5 psi ) ± 10%), or NH
3
-free ambient air.
•
Wait until the measuring value is stable, and then perform automatic zero calibration.
•
Apply calibration test gas NH
3
(20 to 70 % of the measurement range) to the sensor (0,3 l/min; 1 Bar ± 10%).
•
Wait until the measuring value is stable, and then perform automatic gain calibration.
•
Remove calibration adapter carefully by turning lightly. Check the sensor for correct mounting!
By limiting the gain factor, calibration will not be possible any more when the sensitivity of the sensor reaches a
residual sensitivity of 30 %. In this case the sensor has to be replaced.
Further information can be taken from the user manual of the GCD-05 Configuration and Calibration Software.
