Bacharach Parasense GRM2 CO2 Series, Operation & Maintenance Manual

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Operation & Maintenance Manual
Doc. Ref. MNGRM2CO2 REV. 3
e) Once the output measures 4mA, press ZERO for 3 seconds to exit zero calibration and return to
service mode level one. If done successfully, the STATUS LED will change from flashing yellow to
flashing green for 3 seconds before returning to steady yellow.
f) To exit service mode and save the changes
– press DOWN for 3 seconds. The STATUS LED will
flash green for 3 seconds and then illuminate steady green.
To exit service mode without saving the changes
– press UP for 3 seconds. The STATUS LED will
flash red for 3 seconds and then illuminate steady green.
g) Replace the front of the sensor and close the hinges.
h) At the GRM2 CO2 monitor
– The ‘SAMMs List’ screen allows you to see the current concentration
of each channel, including the channel used for the zero calibration. From the primary menu, select
‘SAMMs List’ using the
keys to highlight, then press the key. The reading should be 0ppm.
Note:
If there is an exclamation mark next to the channel number in the ‘Chan’ column, this
indicates that one or more latched condition is active on that channel.
i) Repeat the zero calibration for any other sensors as required