Detector Parameters
NOTE
Performance figures are based on the following:
The humidity of the test gas is 50% RH. The performance values
given are valid between 10% and 90% RH.
Are measured using test units calibrated at 50% of full scale,
Measurements are based on gas being applied using the
calibration adapter at a rate of 300 ml/min for a period of 3
minutes (oxygen, flammable (CAT), carbon monoxide, hydrogen
sulfide) and 5 minutes (hydrogen, nitrogen dioxide and
ammonia).
Response time (T90) may increase when operating in lower
temperature conditions.
With the exception of oxygen and flammable (CAT), the accuracy
for all sensors is ±30%. The accuracy of oxygen versions over is
±0.9% vol. The accuracy of the flammable (CAT) versions is ±5%
LEL. All figures are valid over the temperature range −20 °C to
50 °C.
Operating flammable CAT and O
2
, zero drift may be experienced
in high humidity environments. Recalibrate the unit in the
environment in which it is going to be used.
Maximum accuracy of the flammable CAT version will be
achieved after the unit has been operating for 48 hours.
For H
2
version, recommend to recalibrate when use in low
temperature environment (< −10 °C).
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