E2608-NH3-P
Rev 27.07.2022
Operation
Turn on the power. The instrument warm-up time takes about 1 minute after switching on
and the final sensor stabilization time to maximum accuracy takes about 30 minutes. The
operating status is indicated by the LED on the PCB of the device. The control LED (red)
response to different processes is presented in the following table:
Mode
LED mode
During calibration mode or sensor heating
period (if activated)
0.5 Hz (50% on, 50% off)
Relay 1 turned on
Blinking 1 Hz (50% on, 50% off)
Relay 2 turned on
Blinking 2 Hz (50% on, 50% off)
During the Modbus communication cycle
Short on-off pulses
Normal operating/measurement
Continuously on or off
Make sure that the detector-transmitter is properly mounted, the external devices
connected, power LED (green) on, and the control LED (red) is constantly lit. Place the lid
back and fix it with the screws. The device is ready to use.
Maintenance
Do not perform any maintenance operation with the power on.
Clean the device with a soft damp cloth. Do not use any abrasive cleaning agents. Do not
immerse the device in water or any cleaning media.
Calibration
E2608-NH3-P detector-transmitters have been calibrated by the Manufacturer with
standard gas mixtures before delivery. Provided that the sensor is used under moderate
conditions, field recalibration is recommended every 6 months Please contact your dealer
for more information.
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