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TECHNICAL DATA
27 - 7
ETC00781(4) Series 100 e 02/2004
Cross sensitivities
electrochemical oxygen measurement: paramagnetic oxygen measurement:
Not for use with sample gases containing 100 % Gas zerolevel effect % O
2
FCH´s, inorganic gases with chlorines
and fluorines ! N
2
0,00
Not for Ozone, H
2
S (> 100 ppm), NH
3
(> 20 ppm) CO
2
- 0,27
H
2
+ 0,24
Ar - 0,22
Ne + 0,13
He + 0,30
CO + 0,01
CH
4
- 0,20
C
2
H
6
- 0,46
C
2
H
4
- 0,26
C
3
H
8
- 0,86
C
3
H
6
- 0,55
NO + 43,0
NO
2
+ 28,0
N
2
O - 0,20
Measuring System Specifications
(Values refer to the lowest ranges. Standard ranges with better specs.)
1) Related to full scale at system parameter
END = final value set in our factory and OFS = 0
2) Related to measuring value
3) From gas analyzer inlet at 1.0 l/min gas flow
(electr. = 2 s)
4) Constant pressure and temperature
5) Dependent on integrated photometer bench
6) Paramagnetic oxygen measurement (PO
2
)
7) dependent on measurement range
NDIR Oxygen Sensor (PO
2
and EO
2
) Thermal Conductivity
Detection limit < 1 %
1) 4)
< 1 %
1) 4)
< 2 %
1) 4)
Linearity < 1 %
1) 4)
< 1 %
1) 4)
< 1 %
1) 4)
Zero-point drift < 2 % per week
1)
4)
< 2 % per week
1)
4)
< 2 % per week
1)
4)
Span (sensitivity) drift < 1 % per week
1)
4)
< 1 % per week
1)
4)
< 1 % per week
1)
4)
Repeatability < 1 %
1) 4)
< 1 %
1) 4)
< 1 %
1) 4)
Total response time (t
90
) < 5 s
3) 5)
< 5 s
3) 6)
/
Approx. 12 s
3) 9)
3 s < t
90
< 20 s
3) 7)
Permissible gas flow 0.2 - 1.5 l/min 0.2 - 1.0 l/min
6)
/ 0.2 - 1.5 l/min
9)
0.2 - 1.0 l/min (± 0.1 l/min)
Influence of gas flow - < 1 %
1)
4)
< 1 %
1)
4) 13)
Max. pressure < 1,500 hPa abs. Atm. pres.
6)
/ < 1,500 hPa abs.
9)
< 1,500 hPa abs.
Influence of pressure
(At constant temperature) < 0.10 % per hPa
2)
< 0.10 % per hPa
2)
< 0.10 % per hPa
2)
(< 0.15 % / hPa at CO
2
)
2)
- With pressure compensation
8)
< 0.01 % per hPa
2)
< 0.01 % per hPa
2)
< 0.01 % per hPa
2)
(< 0.015 % / hPa at CO
2
)
2)
Permissible ambient temperature + 5 °C to + 40 °C
10)
+ 5 °C to + 40 °C
10)
+ 5 °C to + 40 °C
10)
Influence of temperature
(at constant pressure)
- On zero point < 1 % per 10 K
1)
< 1 % per 10 K
1)
< 1 % per 10 K in 1 h
1)
- On span (sensitivity) < 5 % (+ 5 to + 40 °C)
1) 11)
< 1 % per 10 K
1)
< 2 % per 10 K in 1 h
1)
Thermostat control - Approx. 55 °C
6)
12)
/ None
9)
Approx. 75 °C
12)
Heating-up time Approx. 15 to 50 minutes
5)
Approx. 50 minutes
6)
Approx. 15 minutes
8) Pressure sensor required
9) Electrochemical oxygen measurement (EO
2
),
not for use with sample gas containing FCHC´s
10) Higher ambient temperatures (45 °C) on request
11) Starting from 20 °C (to + 5 °C or to + 40 °C)
12) Sensor / cell only