H2S continuous monitoring is simple, convenient and reliable.
If corrosive hydrogen sulphide is generated in the sewer system, it makes rust in the sewer and generates odours from underground.
In the worst case, the H2S gas greatly damages buildings and facilities.
The GHS-8AT-EX data logger makes it possible for continuous monitoring in the sewer system.
Continuous monitoring is provided to watch the sewer system, corrosion of sewage pipelines and generation source of offensive odours.
||Controlled-potential electrolysis sensors
|Indicating Accuracy *1
||F.S +/- 5%
||0 – 10.0 ppm
||0 – 100 ppm
||0 – 500 ppm
||0 – 1000 ppm
||0 – 3000 ppm
|0 – 40 ºC
LCD display (Displayed contents: Concentration, temperature, time,
remaining number of recording days, remaining battery capacity)
|Temperature : 0 – 40 ºC
Relative humidity: 30 – 95 %RH (No condensation allowed)
Size AA alkaline batteries (two)
Only the following types may be used:
||3 months *2
|Backup battery life
||Lithium battery (one): Life 5 years *This is the life when an alkaline battery is not connected.
For normal operation, an alkaline battery is connected, and power is supplied from it,
so the actual battery life will be greater than the above. *3
|Number of sets of logging data
||45960 sets *31 days’ worth of data can be recorded at 1-minute logging intervals. *4
||1min , 5min , 10min , 15min , 30min , 60min
||φ89 x 148mm
||2014/34/EU(ATEX), 2014/30/EU(EMC), 2011/65/EU,(EU)2015/863(RoHS)
||II 2G Ex ia II B T3 Gb
||Ex ia 2 B T3 Gb
||IECEx DEK 14.0085
||EN IEC60079-0:2018 , EN60079-11:2012
||IEC60079-0:2017 , IEC60079-11:2011
||EN50270:2015 , EN55032:2015 , EN55024:2010
*1 Conditions: Indication accuracy
*2 Conditions: Temperature 20ºC or higher, Logging interval 5 minutes, Pilot lamp out
*3 This is the life when an alkaline battery is not connected. For normal operation, an alkaline battery is connected, and power is supplied from it, so the actual battery life will be greater than the above.
*4 31 days’ worth of data can be recorded at 1-minute logging intervals.