Specific sensor developed for measuring hydrogen sulphide
Incorporates a constant potential electrolytic type sensor, enabling hydrogen sulphide to be accurately measured.
* The HS-7A-S comes with a 5 m sensor cord.
Measurement range | 0 – 30.0ppm (enhanced range : 30.1 – 50.0ppm) |
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Measurement method | Controlled potential electrolysis method |
Sampling method | Diffusion |
Indicating accuracy | +/- 5% of full scale at time of calibration |
Display | Digital LCD |
Explosion proof | Certified by Japan Ministry of Health, Labour and Welfare (Class Ex ia ⅡC T3 Ga / Certification No.TC22880) |
Operating Temperature / Humidity range | Temperature : -10 – 40 ℃ Relative humidity : 30 – 90 %RH |
Power source | One AAA alkaline battery provides about 3500 hours of operation (when no alarm signal is emitted) |
Dimensions | 48(W) x 37(D) x 105(H) mm |
Weight | 110g |
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.
Target gas | Hydrogen Sulphide | |||||
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Measurement principle | Controlled-potential electrolysis sensors | |||||
Sampling method | Diffusion | |||||
Indicating Accuracy *1 | F.S +/- 5% | |||||
Measurement range | 0 – 10.0 ppm | 0 – 100 ppm | 0 – 500 ppm | 0 – 1000 ppm | 0 – 3000 ppm | |
Minimum resolution | 0.1 ppm | 1 ppm | 1 ppm | 10 ppm | 25 ppm | |
Sensor | H2S-520E | H2S-521E | H2S-522E | H2S-523E | H2S-524E | |
Temperature measurement range | 0 – 40 ºC | |||||
Display | LCD display (Displayed contents: Concentration, temperature, time, remaining number of recording days, remaining battery capacity) | |||||
Operating Temperature/ Humidity range | Temperature : 0 – 40 ºC Relative humidity: 30 – 95 %RH (No condensation allowed) | |||||
Power source | Size AA alkaline batteries (two) Only the following types may be used: LR6(Panasonic) MN1500(DURACELL) | |||||
Battery life | 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 | |||||
Sampling intervals | 1min , 5min , 10min , 15min , 30min , 60min | |||||
Communication interface | USB 2.0 | |||||
Dimensions | φ89 x 148mm | |||||
Weight | 390g | |||||
EU Directive | 2014/34/EU(ATEX), 2014/30/EU(EMC), 2011/65/EU,(EU)2015/863(RoHS), (EU)2023/1542(BATTERY) | |||||
Marking | ATEX | II 2G Ex ia II B T3 Gb | ||||
IEC Ex | Ex ia 2 B T3 Gb | |||||
Certificate Number | ATEX | DEKRA 14ATEX0135 | ||||
IEC Ex | IECEx DEK 14.0085 | |||||
Standards | ATEX | EN IEC60079-0:2018 , EN60079-11:2012 | ||||
IEC Ex | IEC60079-0:2017 , IEC60079-11:2011 | |||||
EMC | EN50270:2015 , EN55032:2015+A11:2020+A1:2020, EN55035:2017+A11:2020 | |||||
RoHS | EN IEC63000:2018 |
*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.