Siemens ULTRAMAT 23 Product Information page 6

H S sensor for measuring ranges from 5 to 50 vpm H
2
General information
Measured components
Measuring ranges
Smallest measuring range
Largest measuring range
Service life of the sensor
Permissible ambient pressure
Permissible operating temperature
Operation mode
AUTOCAL
Influencing variables
Accompanying gas
Cross-inference (interfering gas)
Drift
Temperature
Air pressure
Measuring behavior
Display delay (T90 time)
Output signal noise
Display resolution
Output signal resolution
Reproducibility
Note
Measuring ranges
The exact specification of the largest and smallest H
6
S
2
Maximum of 4, comprising three infrared-sensitive gases, one oxygen and
one hydrogen sulfide
0 ... 5 vpm
0 ... 50 vpm
Approx. 12 months
750 ... 1 200 hPa
5 ... 40 °C (41 ... 104 °F)
Continuous measurement between 0 and 12.5 vpm
Discontinuous measurement between 12.5 and 50 vpm
Cyclic interval any 60 minutes using ambient air
The hydrogen sulfide sensor cannot be used if the accompanying gas contains
the following components:
- Chlorine-containing compounds
- Fluorinated compounds
- Heavy metals
- Aerosols
- Alkaline components (e.g. NH
1 360 vpm SO result in a cross-interference of <20 vpm H
2
180 vpm NO result in a cross-interference of <150 vpm H
No cross-interference of CH
< 1 % per month
< 3 % /10 K relative to full-scale value
< 0.2 % of measured value per 1% pressure change
< 40 s with approx. 1-1.2 l/min sample gas flow
<2 % of smallest measuring range with a damping constant of 30 s
0,01 vpm H S
2
<1 % of smallest measuring range with a damping constant of 30 s
< 4 % of smallest measuring range
S ranges can be found on the label!
2
Supplement 1 for Operating Instructions C79000-G52xx-C216-03
>5 mg/m )
3
3
, CO and H (1000 vpm)
4 2 2
S
2
S
2
A5E02769382-03, 03/2012