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Operating Instructions Teledyne API - Model 200EH/EM Operation Manual
112
FOR THE M200EM:
Low range spans 0 to 20 ppm NO
X
(20 ppm = 5 V);
High range spans 0-200 ppm NO
X
(200 ppm = 5 V).
If the high end of the selected reporting range is 20 ppm. The low physical range is selected. If the
high end of the selected reporting range is > 20 ppm. The high physical range is selected.
FOR THE M200EH:
Low range spans 0 to 500 ppm NO
X
(500 ppm = 5 V);
High range spans 0-5000 ppm NO
X
(5000 ppm = 5 V).
If the high end of the selected reporting range is 500 ppm. The low physical range is selected. If the
high end of the selected reporting range is > 500 ppm. The high physical range is selected.
Once properly calibrated, the analyzer’s front panel will accurately report concentrations along the entire span of
its 0 and 20,000 ppb physical range regardless of which reporting range has been selected for the analog
outputs and which physical range is being used by the instruments software.
Both reporting ranges need to be calibrated independently to the same span gas concentrations in order to allow
switching back and forth between high and low ranges.
04521C (DCN5731)