Dräger Polytron 7000, Инструкция по эксплуатации

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_ Dräger Polytron 7000
Technical data
NOTICE
Cross-sensitivities
The sensor cannot be used for the measurement of oxygen if helium is present.
► Do not use the sensor for oxygen measurements if helium is present.
CAUTION
Sensor fault
If the sensor is exposed to high concentrations of unsaturated hydrocarbons,
alcohol or hydrogen, this can lead to failure of the device.
► Make sure that the sensor is not exposed to such concentrations over a long
period.
Stabilisation time: 5 x t
0...90
Humidity 5 to 95 % rh, non-condensing
Temperature -40 to +60 °C
b65 °C
Storage
Pressure No effect
Humidity 30 to 70 % rh, non-condensing
(only relevant if sensor packaging is open)
Temperature 0 to +40 °C
Duration Storage of sensors is not anticipated. Sensors
should be used from the point of arrival. Remain-
ing life span = expected life span - storage period
Effect of ambient parameters
Zero-point Sensitivity
Temperature
-40 to 65 °C < ± 0.3 vol% O
2
< ± 0.3 vol% O
2
Pressure < ± 0.1 vol% O
2
Relative deviation from dis-
play at 1013 hPa:
< 2 % of the measured value
/ 100 hPa
Humidity No effect Relative deviation from dis-
play at 50 % rh:
< 2.5 % of the measured
value
Reaction time
t
0...20
t
0...90
0 to 25 vol% O
2
≤ 10 seconds ≤ 30 seconds
Ambient parameters