Dräger Polytron 8000 Serie Instructions For Use página 38

en Performance Approvals
19.3.1 DrägerSensor O
The DrägerSensor O (6809720) is an electrochemical 2-
2
electrode sensor for measuring Oxygen (O
Environmental parameters
Pressure
Humidity
Temperature
Storage
Pressure
Humidity
Temperature
Time
Influence of environmental parameters
Zero point
2)3)
Temperature
-20 to 55 °C < ± 0.2 Vol%O
-10 to 55 °C -
-10 to -20 °C -
Pressure < ±0.2 Vol%O
Humidity No influence
1) Relative deviation of display reading is caused by atmospheric pres-
sure changes.
2) At temperatures below -5 °C the measurement deviation is higher
than specified in the EN 50104.
3) For operation-temperatures outside -5 °C to 40 °C a calibration at
operation temperature must be performed.
1)
Response time
t
0...20
0-5 Vol% O
2
≤ 15 seconds
(6809720)
2
) in ambient air.
2
20.7 to 38.4 in. Hg (700 to
1300 hPa)
10 to 95%RH, non-condensing
-5 to +40 °C
short term -20 to +55 °C
no influence
30 to 70%RH, non-condensing
(only relevant if sensor packag-
ing open)
0 to +40 °C
Storing of sensors is not
intended. Sensors should be
used upon arrival. Remaining
service life = Expected Service
life - Storage time
1)
Span
Relative deviation
2
from reading at
20 °C
< ± 8%
< ± 16%
Relative deviation
2
from reading at
1013 hPa:
< 10% of measure-
ment value /
100 hPa
Relative deviation
from reading at
50 % r.H.:
< 1 % of measure-
ment value
t
0...90
≤ 33 seconds
2)
1)
Response time
t
0...20
0-25 Vol% O ≤ 10 seconds
2
1) At temperatures below -5 °C, the response time may increase.
2) Response time is higher than the permissible limit of EN 50104.
Stabilization time: 5 x t
0...90
Measuring range
0-5 Vol% O to 0-100 Vol% O
2
Default: 25 Vol% O Minimum reading: -1.25 Vol% O
2
Warm-up time
Operation: <20 minutes / Calibration: ≤ 2 hours
19.3.2 DrägerSensor O
The DrägerSensor O LS (6809630) is an electrochemical 3-
2
electrode sensor for measuring Oxygen (O
Environmental parameters
Pressure
Humidity
Temperature
Storage
Pressure
Humidity
Temperature
Time
Influence of environmental parameters
Zero point
Temperature
-40 to 65 °C < ± 0.3 Vol%O
Pressure < ± 0.1 Vol% O
Humidity No influence
t
0...90
≤ 26 seconds
2
2
LS (6809630)
2
) in ambient air.
2
20.7 to 38.4 in. Hg (700 to
1300 hPa)
5 to 95%RH, non-condensing
-40 to +60 °C
short term +65 °C
no influence
30 to 70%RH, non-condensing
(only relevant if sensor packag-
ing open)
0 to +40 °C
Storing of sensors is not
intended. Sensors should be
used upon arrival. Remaining
service life = Expected Service
life - Storage time
Span
< ± 0.3 Vol%O
2 2
Relative deviation
2
from reading at
1013 hPa:
< 2 % of measure-
ment value /
100 hPa
Relative deviation
from reading at 50 %
r.H.:
< 2.5 % of measure-
ment value
®
Dräger Polytron 8000 Series