Gastec GHS-8AT-EX Hydrogen Sulphide Data Logger

Gastec GHS-8AT-EX Hydrogen Sulphide Data Logger 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.

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

Features

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.

Applications

Continuous monitoring is provided to watch the sewer system, corrosion of sewage pipelines and generation source of offensive odours.

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,(EU)2015/863(RoHS)
Marking	ATEX	II 2G Ex ia II B T3 Gb
Marking	IEC Ex	Ex ia 2 B T3 Gb
Certificate Number	ATEX	DEKRA 14ATEX0135
Certificate Number	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 , EN55024:2010
	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.