Dräger Pac 7000 Instrucciones De Uso página 7

12.3 Sensor Specifications and Instrument Configuration
Principle of measurement is an electrochemical 3-electrode sensor. Oxygen (O
of Helium (He)!
The Type-Examination-Certificate covers the measuring function for Oxygen enrichtment and defficiency.
Indication range
Certified measuring range
test gas concentration
factory set calibration concentration
Temperature range, operation
2)
Alarm Threshold A1
acknowledgeable
latching
2)
Alarm Threshold A2
acknowledgeable
latching
2)
TWA Threshold A1
2)
STEL Threshold A2
No. of STEL periods
Average STEL duration
Warm up time (switch on)
Warm up time (sensor or battery change)
Reproducibility
Zero point:
Sensitivity: [% of measured value]
o
Drift (20 C)
Zero point:
Sensitivity: [% of meas. value/month]
Response times t /t
0...50 0...90
Zero error (EN45544)
5)
Capture range
6)
Cross-sensitivities
Standards, performance tests for toxic
gases and oxygen deficiency and
enrichment Type Certificate PFG 07 G 003
3)
Sensor Order Number
Sensor Data Sheet Order Number
) cannot be measured in the presence
2
CO H S
2
0 ... 1999 ppm 0 ... 200 ppm
3 to 500 ppm 1 to 100 ppm
20 to 999ppm 5 to 90ppm
100 ppm 20 ppm
o o
–20 ... 50 C –20 ... 50 C
o o
–4 ... 122 F –4 ... 122 F
30 ppm 5 ppm
Yes Yes
No No
60 ppm 10 ppm
No No
Yes Yes
30 ppm 10 ppm
8 hours 2 hours
60 ppm 10 ppm
4 4
15 minutes 15 minutes
20 seconds 20 seconds
15 minutes 15 minutes
 ± 2 ppm  ± 0.5 ppm
 ± 2  ± 2
 ± 2 ppm/a  ± 1 ppm/a
 ± 1  ± 1
7/11 seconds 7/13 seconds
6 ppm 2 ppm
± 6 ppm ± 2 ppm
7) 8)
exist exist
EN 45544 EN 45544
EN 50271 EN 50271
6810882 6810883
9023816 9023819
O CO LC
2
2 ... 25 vol.-% 0 to 1999 ppm
2 to 25 vol. % 3 to 500 ppm
10 to 25 vol.% 20 to 999 ppm
18 vol.% 100 ppm
o
–20 ... 50 C –20 to 50 °C
o
–4 ... 122 F
–4 to 122 °F
1)
19 vol.-% 30 ppm
No Yes
Yes No
23 vol.-% 60 ppm
No No
Yes Yes
No 30 ppm
8 hours
No 60 ppm
No 4
No 15 minutes
20 seconds 20 seconds
15 minutes 15 minutes
 ± 0.2 vol.-%  ±2 ppm
 ± 1  ±2
 ± 0.5 vol.-%/a  ±2 ppm/a
 ± 1  ±1
12/20 seconds 12/22 seconds
– – – 1 ppm
– – – ± 1 ppm
9) 7)
exist exist
EN 50104 EN 45544
EN 50271
EN 50271
6810881 68 13 210
9023820 90 33 454
Cross sensitivity CO
4)
factors CO LC
 2
Acetylene
Ammonia negligible negligible negligible
Carbon dioxide negligible negligible
Carbon monoxide negligible negligible
 0.05
Clorine
Ethane no value
Ethanol negligible negligible negligible
Ethene no value
 0.35
Hydrogen
Hydrogen chloride negligible negligible negligible
Hydrogen cyanide negligible negligible negligible
 0.03
Hydrogen sulphide
Methane negligible negligible negligible
 0.05
Nitrogen dioxide
 0.2
Nitrogen monoxide
Propane negligible negligible negligible
 0.04
Sulphur dioxide
H S O
2 2
 –0.5
negligible
 –0.04
 0.2
 –0.2
negligible
 –0.2
no value
 –1
no value
 –1.5
negligible
negligible
 –0.25
negligible
 0.03
negligible
 0.1
negligible
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