Manual
GA-60
Attention!
When calibrating the NO sensor, before the zeroing, analyser must be
ventilated with pure 100% nitrogen gas. If this operation is not possible,
value of the reference gas must be raised by 15 ppm.
3. Allow the analyser to sample the reference gas (with known concentration)
through the gas probe and heated hose and let the sensor measure it.
4. Enter gas concentration value in the reference gas setting.
5. After the reading under current results stabilises calibrate with the Calibrate
option.
6. Check if the current results reading equals the reference gas concentration
value. If not, repeat calibration and this time extend time of tests for the
reference gas and fresh air.
5.3.6.6.4. ElChem sensors calibration
Attention!
Electrochemical sensors calibration performed by untrained
member of staff can cause loss of correct analyser's setting and in
consequence make further measurement impossible.
Madur company strongly discourages changing settings in this
menu without a proper training!!!
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