Dräger Polytron 7000 Instructions For Use Manual page 49

Storage
Humidity
Temperature
Duration
Effect of ambient parameters
Temperature
Pressure
Humidity
1) For temperatures below -5 °C the measurement deviation is greater than specified in EN
50104.
2) A calibration at operating temperatures must occur for operating temperature outside the
range of -5 °C to 40 °C.
Reaction time
0 to 25 vol% O
1) The measured value response time may increase at temperatures below -5 °C.
Stabilisation time: 5 x t
Measuring range
0-5 vol% O
Standard: 25 vol% O
Minimum display: -1.25 vol% O
Warm-up time of the sensor
Operation: < 20 minutes / calibration: ≤ 2 hours
14.3.2 DrägerSensor O
The DrägerSensor O
for the measurement of oxygen (O
Ambient parameters
Pressure
1)2)
-20 to 55 °C
-10 to 55 °C
-10 to -20 °C
1)
t
0...20
≤ 10 seconds
2
0...90
to 0-100 vol% O
2
2
LS (6809630)
2
LS (6809630) is an electrochemical three-electrode sensor
2
Dräger Polytron 7000
30 to 70 % rh, non-condensing
(only relevant if sensor packaging is open)
0 to +40 °C
Storage of sensors is not anticipated. Sensors
should be used from the point of arrival. Remain-
ing life span = expected life span - storage period
Zero-point
< ± 0.2 vol% O
2
-
-
< ±0.2 vol% O
2
No effect
2
2
) in the ambient air.
2
20.7 to 38.4 in. Hg (700 to 1300 hPa)
Technical data
Sensitivity
Relative deviation from
display at 20 °C
< ± 8%
< ± 16%
Relative deviation from
display at 1013 hPa:
< 10% of the measured
value / 100 hPa
Relative deviation from
display at 50 % rh:
< 2.5 % of the measured
value
t
0...90
≤ 26 seconds