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Les langues disponibles
en
|
Performance Approvals
Approved are:
– 4 to 20 mA interface
– Relay module
– Remote sensor (except Polytron 8100 EC)
– Factory default full scale deflections
Not approved are the fieldbus interface and the data logger.
18.2 Type Examination Certificate, PFG 14
G 001 X
Measurement of oxygen (deficiency and enrichment)
– Polytron 8100 EC with DrägerSensor O
DrägerSensor O
LS (6809630) within a measuring range
2
of 0–25 Vol% O
.
2
Measurement of carbon dioxide
– Polytron 8720 IR with PIR 7200 within the following
measuring ranges:
● 1 Vol% and 10 Vol% – EN 45544-2
● 2000 ppm, 1 Vol% and 10 Vol% – EN 45544-3
18.3 DrägerSensor O
SensorAlive certified operating
conditions
O
sensor cross-sensitivities
2
There are no known cross-sensitivities against interfering
gases with a concentration of up to 100 ppm. Further
information can be requested from Dräger.
18.3.1 DrägerSensor O
The DrägerSensor O
(6809720) is an electrochemical two-
2
electrode sensor for measuring oxygen (O
Environmental parameters
Pressure
Humidity
Temperature
Storage
Pressure
Humidity
Temperature
Time
48
(6809720) and
2
, O
LS and Dräger
2
2
(6809720)
2
) in ambient air.
2
20.7 to 38.4 in. Hg (700 to
1300 hPa)
10 to 95 % RH, non-condensing
Application of EN 50104 limits
the temperature range to 0° C to
+55 °C.
no influence
30 to 70 % RH, non-condensing
(only relevant if sensor packag-
ing is open)
0 to +40 °C
Storage of sensors is not
intended. Sensors should be
used immediately. Remaining
life span = expected life span -
storage time
Instructions for use
Influence of environmental parameters
Zero-point
2)3)
Temperature
0 to 55 °C
≤ 0.3 Vol% O
Pressure
< ± 0.2 Vol% O
Humidity
No influence
1) Relative deviation of the display reading is caused by atmospheric
pressure fluctuations.
2) At temperatures below -5 °C, the measurement deviation is higher
than specified in EN 50104.
3) For operating temperatures outside -5 °C to 40 °C, an adjustment at
operating temperature must be performed.
1)
Response time
t
0...20
0-5 Vol% O
2
≤ 15 seconds
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 value: 25 Vol% O
2
Sensor warm-up time
Operation: <20 minutes / Adjustment: ≤ 2 hours
18.3.2 DrägerSensor O
The DrägerSensor O
LS (6809630) is an electrochemical
2
three-electrode sensor for measuring oxygen (O
air.
Environmental parameters
Pressure
Humidity
Temperature
|
Dräger Polytron
Sensitivity
≤ 0.9 Vol% O
2
Relative deviation
2
from the reading at
1013 hPa:
< 10 % of the mea-
sured value /
100 hPa
Relative deviation
from the reading at
50 % rel. humidity:
< 1 % of the mea-
sured value
t
0...90
≤ 33 seconds
2)
≤ 26 seconds
2
Minimum reading: -1.25 Vol% O
LS (6809630)
2
) in ambient
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
®
8000 Series SW version ≥ 4.0.x
1)
2
2
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