SulfiLoggerTM H2S sensor

Measure H2S anywhere and without interruptions.

The SulfiLoggerTM H2S sensor provides superior insights that enable you to adopt a proactive and data-driven approach to odor and corrosion control in wastewater, biogas, and oil & gas industries.

  • Measure in wastewater, in air, or in gases

  • Get continuous data in SCADA / Cloud

  • Patent-pending sensor technology

  • ATEX, HazLoc, & IECEx (X1 sensors)

X1 sensors:

Get superior H2S data

Measure H2S anywhere

Measure H2S anywhere to get exactly the data, you’re looking for.

  • Measure in rough environments with 0-100% humidity & no oxygen

  • Measure in raw wastewater, in humid air, or in wet process gases

  • Measure in environments with high temperature and high pressure

Get data without interruptions

Get reliable H2S insights on any time scale to identify seasonal effects, daily patterns, and unexpected spikes.

  • Get continuous data

  • Get long-term sensor data with no need for dry-out time

  • Get data in your SCADA system, in the cloud, or via RS-232 integration

The SulfiLoggerTM probe is ideal for many hydrogen sulphide monitoring applications in industries such as:

Wastewater

Measure H2S directly in untreated wastewater to get reliable insights unaffected by flow, ventilation or turbulence.

Biogas

Monitor H2S continuously in wet biogas immediately after the anaerobic digester or desulphurization processes.

Oil & Gas

Measure right after the oil & gas separator to follow the development in H2S and to eliminate the need for manual sampling.

Measure H2S the easy way

Simple installation

Get started measuring H2S without preconditioning, sampling systems, or manual test handling. We supply all mounting hardware.

Minimal maintenance

Perform a simple 10-minute field calibration every 3rd month to keep accurate measurements over time.

Applications

The SulfiLoggerTM sensor’s reliable insights empower you to make smarter decisions. Among other applications, the sensor is ideal for these purposes:

Root cause analysis

Initiate short-term measurement campaigns to select and prioritize mitigation activities.

Permanent monitoring

Permanently monitor critical hotspots – continuously & without interruptions.

Chemical dosing control

Control and optimize chemical/scavenger dosing operations using sensor data.

Sensor specifications

The SulfiLoggerTM H2S sensor measures the partial pressure of H2S.
It uses a novel and patent-pending microelectrochemical sensor technology that is robust even in challenging environments.

Analyzer models
SulfiLoggerTM S1/X1-1020
Measurement media Wastewater (mg/L)
Air (ppm)
Measurement range Low range
0-0.5 mg/L
0-100 ppm
Normal range
0-5 mg/L
0-1000 ppm
Custom range
Custom measurement ranges upon request
Max pressure 3 barg (44 psig)
Operating temperature range 0 °C to +40 °C
(32 °F to +104 °F)
Front design Passive anti-fouling flush front for sensor submersion
Material Stainless Steel
EN 1.4404 (316L)
Price
View price in Shop

 

SulfiLoggerTM S1/X1-1120
Measurement media Pressurized wastewater (mg/L)
Biogas (ppm)
Measurement range Low range
0-0.5 mg/L
0-100 ppm
Normal range
0-5 mg/L
0-1000 ppm
Custom range
Custom measurement ranges upon request
Max pressure 3 barg (44 psig)
Operating temperature range 0 °C to +40 °C
(32 °F to +104 °F)
Front design Threaded G 1″
(ISO 228-1, BSPP)
Material Stainless Steel
EN 1.4404 (316L)
Price
View price in Shop
SulfiLoggerTM X1-1220
Measurement media Pressurized process water (mg/L)
Natural gas (ppm)
Measurement range Low range
0-0.5 mg/L
0-100 ppm
Normal range
0-5 mg/L
0-1000 ppm
Custom range
Custom measurement ranges upon request
Max pressure 3 barg (44 psig)
Custom pressure rating upon request
Operating temperature range 0 °C to +60 °C
(32 °F to +140 °F)
Front design Threaded G 1″
(ISO 228-1, BSPP)
Material Surface treated stainless steel for improved corrosion resistance
EN 1.4404 (316L)
Price
View price in Shop
H2S sensor models
SulfiLoggerTM S1/X1-1020 SulfiLoggerTM S1/X1-1120 SulfiLoggerTM X1-1220
Measurement media Wastewater (mg/L)
Air (ppm)		 Pressurized wastewater (mg/L)
Biogas (ppm)		 Pressurized process water (mg/L)
Natural gas (ppm)
Measurement range Low range
0-0,5 mg/L
0-100 ppm
 Low range
0-0,5 mg/L
0-100 ppm		 Low range
0-0,5 mg/L
0-100 ppm
Normal range
0-5 mg/L
0-1000 ppm		 Normal range
0-5 mg/L
0-1000 ppm		 Normal range
0-5 mg/L
0-1000 ppm
Custom range
Custom measurement ranges upon request		 Custom range
Custom measurement ranges upon request		 Custom range
Custom measurement ranges upon request
Max pressure 3 barg (44 psig) 3 barg (44 psig) 3 barg (44 psig)
Custom pressure rating upon request
Operating temperature range 0 °C to +40 °C
(32 °F to +104 °F)		 0 °C to +40 °C
(32 °F to +104 °F)		 0 °C to +60 °C
(32 °F to +140 °F)
Front design Passive anti-fouling flush front for sensor submersion Threaded G 1″
(ISO 228-1, BSPP)		 Threaded G 1″
(ISO 228-1, BSPP)
Material Stainless Steel
EN 1.4404 (316L)		 Stainless Steel
EN 1.4404 (316L)		 Surface treated stainless steel for improved corrosion resistance
EN 1.4404 (316L)
Price
View price in Shop
View price in Shop
View price in Shop
Technical specifications
Accuracy +/- 5% of reading
Detection limit 1% of full range
Response time <25 seconds
Operating humidity range 0-100%
Max water depth 10 metres
Storage temperature range 0 °C to +40 °C

(32 °F to +104 °F)
Design temperature range -20 °C to +60 °C

(-4 °F to +140 °F)
Power input options 4-20 mA loop power

DC power (12-28 VDC)

Batteries*
Data output options 4-20 mA analogue signal

RS-232 digital signal

Cloud data*

* With the PowerCom Box only.

Mechanical & other specifications
Length 240 mm (9.4 in)
Diameter 48.3 mm (1.9 in)
Weight 0.85 kg (1.9 lb)
Warranty 1 year**
Chemical interferences specifications

** When used in accordance with the Installation Manual.

Certification
S1-series:
X1-series:

  • ETL listed (cETLus marked) to Canadian and US General Safety and Hazardous (Class l, Div. 1) Locations***
  • ATEX, UKEX, and IECEx approved for use in Zone 0 Hazardous Areas (Ex II 1G Ex ia IIC T4 Ga)***

*** SulfiLogger™ X1 only. Certificates are available on sulfilogger.com/support.

Want to know more?

Would you like to know more about the SulfiLoggerTM sensor?
Send us an inquiry and we will get back to you.