Hydrogen Sulfide Sensor - Siemens ULTRAMAT 23 Series Equipment Manual

3.4.6

Hydrogen sulfide sensor

The cyclic Autocal must be switched on, see also Application note (Page 163).
General information
Measuring ranges
• Smallest measuring range
• Largest measuring range
Service life of the sensor
Shelf life
Operation mode
AUTOCAL
Climatic conditions (restrictions)
Permissible ambient temperature
• During operation
• During transportation and storage
Permissible ambient pressure
Influencing variables
Associated gases
Interference gases
Drift
Temperature
Air pressure
Measuring behavior at analog output
Output signal noise
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012
0 ... 5 vpm
0 ... 50 vpm
Approx. 12 months after first use in the ULTRAMAT 23
Maximum of 12 months after date of manufacture
Continuous measurement between 0 and 12.5 vpm
Discontinuous measurement between 12.5 and 50 vpm
Cycle time: 1 hour (see Application note (Page 163))
+5 ... +40 °C (41 ... 104 °F)
-10 ... +55 °C (14 ... 131 °F)
750 ... 1200 hPa absolute
The hydrogen sulfide sensor cannot be used if the associated gas contains
the following components:
• Compounds containing chlorine
• Compounds containing fluorine
• Heavy metals
• Aerosols
• Alkaline components (e.g. NH
1360 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 based on full-scale value
< 0.2 % of measured value per 1% pressure change
< 2% of smallest measuring range with a damping constant of 30 s
3.4 Technical specifications
>5 mg/m )
3
3
, CO and H (1000 vpm)
4 2 2
Description
S,
2
S,
2
41