GASTEC CORPORATION - For all types of gas and vapour

Hydrogen Sulphide Data LoggerGHS-8AT-EX

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.

  • The large display screen enables you to check concentration, temperature, and remaining battery capacity. The product also comes with a function that notifies you of when the sensor must be calibrated.
  • The use of a power supply and a recording switch enables energy to be conserved and also enables you to freely select the start and end points of recording.
  • small and light weight
  • You can easily remove the outer case to replace it.
  • The water resistance and corrosion resistance of the structure have been enhanced (IP66/67), and the product is designed to float on water.
  • Even when logging is performed for one minute, up to one month's worth of concentration and temperature data can be recorded.
  • We manufacture sensors for a wide range of measurement applications to match a variety of measurement locations.
Hydrogen Sulphide Data Logger GHS-8AT-EX

Specifications

Target gas Hydrogen Sulphide
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(RoHS)
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 EN60079-0:2012+A11:2013 , EN60079-11:2012
IEC Ex IEC60079-0:2011 , IEC60079-11:2011
EMC EN50270:2015 , EN55032:2015 , EN55024:2010
RoHS EN50581:2012

*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.


Data processing using a PC is easy

By connecting the GHS-8AT to a PC using a USB cable, logging data is read to the PC.
By using dedicated software, a graphical display or a text file can be prepared.

By connecting the GHS-8AT to a PC using a USB cable, logging data is read to the PC.By using dedicated software, a graphical display or a text file can be prepared.

Example of use

Example of use in sewer facilities in a downtown high-rise area

Example of use in sewer facilities in a downtown high-rise area

*The products may not be sold depending on countries and regions. 

Software

Options

Calibration is necessary for ensuring accurate measurement.

To calibrate the GHS-8AT, use the dedicated calibration hydrogen sulphide generating kit to generate gas and then perform calibration. When using the GHS-8AT, it is also necessary to use the applicable CK-11 series calibration hydrogen sulphide generating kit.
*We also have a kit which does not include the GV-100 gas sampling unit.

Product inquiries

Please use the relevant link below to make an inquiry.