Supplement 1 for Operating Instructions C79000-G52xx-C216-03
A5E02769382-03, 03/2012
5
Technical data
H
2
S sensor for measuring ranges from 500 to 5000 vpm H
2
S
General information
Measured components Maximum of 4, comprising three infrared-sensitive gases, one oxygen and
one hydrogen sulfide
Measuring ranges
Smallest measuring range
Largest measuring range
0 ... 500 vpm
0 ... 5 000 vpm
Service life of the sensor Approx. 12 months
Permissible ambient pressure 750 ... 1 200 hPa
Permissible operating temperature 5 ... 40 °C (41 ... 104 °F)
Operation mode Continuous measurement
AUTOCAL Cyclic interval any 3 hours using ambient air
Influencing variables
Associated gases The hydrogen sulfide sensor must not be used if the residual gas contains the
following components:
- Chlorine-containing compounds
- Fluorinated compounds
- Heavy metals
- Aerosols
- Alkaline components (e.g. NH
3
>5 mg/m
3
)
Cross-inferences (interfering gases) 100 vpm SO
2
result in a cross-interference of <30 vpm H
2
S
Drift < 1 % per month
Temperature < 3 % /10 K relative to full-scale value
Air pressure < 0.2 % of measured value per 1% pressure change
Measuring behavior
Display delay (T90 time) < 80 s with approx. 1-1.2 l/min sample gas flow
Output signal noise 3 % of smallest measuring range with a damping constant of 30 s
Display resolution 1 vpm H
2
S
Output signal resolution 1.5 % of smallest measuring range with a damping constant of 30 s
Reproducibility < 4 % of smallest measuring range, referred to full-scale value
To Next Page
Loading...
