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Teledyne API - Model T200H/T200M Operation Manual Operating Instructions
133
selects which physical range is in effect based on the analog output reporting range
selected by the user:
FOR THE T200M:
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 T200H:
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 200 ppm or 5,000 ppm 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.
07270B DCN6512