WARNING
Danger of chemical burns
The H
2
S sensor contains sulfuric acid, which leads to burns on unprotected skin.
Therefore do not use any tools when replacing the sensor module which could damage the
sensor due to sharp edges or squeezing.
If contact with the acid occurs nevertheless, rinse the aected skin immediately with plenty of
water!
NOTICE
Improper disposal
The exhausted or faulty H
2
sensor is hazardous waste and must be packed and disposed of
accordingly!
The exhausted H
2
S sensor is electronic waste with the code number 160215, that is, a
"dangerous component removed from used devices". It must therefore be disposed of correctly
and in an environmentally-friendly manner by a local waste disposal company.
Environmental damage may occur if this stipulation is not followed. The polluter is also
threatened with criminal action!
Note
The H
2
S sensor only has a limited service life depending on the operating mode and is therefore
excluded from the analyzer guarantee.
Proceed as follows to remove the old sensor:
1. Flush the gas path for about 10 minutes with zero gas (AUTOCAL)
2. When sample gas is no longer present in the gas path, disconnect the analyzer from the
supply voltage.
3. Open the analyzer by loosening the two screws of the lid, move the lid and lift it upwards
4. Remove the connector from the H
2
S sensor.
5. Unscrew the H
2
S sensor out of the holder.
Service and maintenance
10.2 Maintenance work
ULTRAMAT 23
Equipment Manual, 04/2022, A5E37100388-012 175
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