E2618-NH3-E
Rev 09.03.2021
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)
During Modbus communication cycle
Short on-off pulses
Normal operating/measurement
Continuously on or off
Make sure that the transmitter is properly mounted, the external devices connected, power
LED (green) on and control LED (red) 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 soft damp cloth. Do not use any abrasive cleaning agents. Do not
immerse the device into water or any cleaning media.
Calibration
E2618-NH3-E gas transmitters have been calibrated by the Manufacturer with standard gas
mixtures before delivery. Provided that the sensor is used under moderate conditions, the
recommended interval for field recalibration is 6 months. Please contact your dealer for
more information.
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