Southland Sensing - Model H2S-625 -Hazardous Area Online Process Hydrogen Sulfide Analyzer, CE, ATEX, IECEx

• Enclosure Type: Wall Mount; Pole Mount
• Standard Ranges: 0 – 10/50/100/200 PPM
• Optional Ranges: 0 – 100/500/1000/2000 PPM
• Optional Ranges: 0 – 1000/2000/5000/10000 PPM
• Range Mode: Auto-Range or Manual Range
• Resolution: 0.01 PPM, 0.1 PPM or 1 PPM
• Input Power: 100 – 240 VAC or 12 – 24 VDC
• Analog Output: 4 – 20mA or 1 – 5V DC
• Communication: Bi-Directional MODBUS RS485 RTU
• Alarms: 2 Fully adjustable Form C relay contacts

The built in smart MENU interface allow the user to fully configure the analyzer through the onboard MENU system, no need for a complicated laptop or other control device to setup the analyzer in the field.

The analyzer is designed as an extractive type unit to draw the sample through its integrated sample system which includes a 3-way sample / span valve, and a visual rotameter / flowmeter with flow control valve.  The analyzer has a unique design that oxygen does not need to be present in the sample gas to get a good accurate H2S reading.

The H2S sensor is based on the galvanic electrochemical fuel cell principal.  The sensors are self contained and minimal maintenance is required – no need to clean electrodes or add electrolyte.  The precision sensors offer excellent performance, accuracy and stability while maximizing the expected life.  The analyzer comes with 3 optional sensors, The H2S-1x has four ranges 0 – 10 ppm, 0 – 50 ppm, 0 – 100 ppm, 0 – 200 ppm.  The H2S-2x has 0 – 100 ppm, 0 – 500 ppm, 0 – 1000 ppm and 0 – 2000 ppm. The H2S-3x has 0 – 1000 ppm, 0 – 2000 ppm, 0 – 5000 ppm, and 0 – 10000 ppm.

The sensors are self-contained and minimal maintenance is required – no need to clean electrodes or add electrolyte.

Primary applications for this analyzer include natural gas, landfill and biogas applications.

Designed to measure trace H2S in the parts-per-million range in hazardous area environments that require a 3rd party certification. The unit offers the largest available H2S measurement range in the market (up to 0 – 10000ppm) by combining an advanced set of electronic features including a smart MENU interface along with our industry leading precision electrochemical H2S sensor technology. The analyzer is easy to operate and maintain resulting in a highly reliable, hazardous area certified and cost effective H2S analyzer.

Specific applications typically include continuous real-time monitoring of natural gas extraction & processing, landfill gas monitoring, biogas and other unique processes that require hazardous area certification

• Precision Electrochemical H2S Sensor
• Designed for Natural gas & Biogas Applications
• F.S. Ranges of 0 - 10 ppm up to 0 - 10000 ppm
• Cost Effective and Low Maintenance
• Large Backlit Display
• Intuitive User Friendly Interface
• Optional MODBUS RS485 RTU
• 2 Fully Configurable Alarm Relay Contacts

• Sample System Add-On Components
• Bi-Directional RS485 Modbus RTU
• Extreme Weather Packaging
• Extended Temperature Ranges

• Natural Gas Extraction & Pipelines
• Natural Gas Processing
• Landfill Gas Monitoring
• Biogas before and after the H2S Scrubber
• And Many Other Industrial Applications

H2S Analyzer:
The model H2S-625 Hydrogen Sulfide analyzer combines a rugged design with SSO2’s precision H2Ssensors. The result is a highly reliable and cost effective compact design with an easy-to-use user interface designed specifically for the Natural Gas and biogas industries.

The oxygen analyzer is certified for use in Zone 1 IIB + H2 applications.

The H2S analyzer is isolated both on the power input and analog output. This eliminates most electronic gremlins seen with existing competitive equipment in the field.

Gas connections are made with 1/4” Compression tube fittings. Sample Systems includes Sample / Span valve and flow meter.

The H2S-625 analyzer comes with an optional

MODBUS RS485 RTU Bi-Directional Communication protocol.

H2S Sensor Technology:
The H2S sensor used in the H2S-625 is based on the galvanic electrochemical fuel cell principal. All H2S sensors are manufactured under a strict quality program.

The sensors are self-contained and minimal maintenance is required - no need to clean electrodes or add electrolyte.

The Southland Sensing precision H2S sensors offer excellent performance, accuracy and stability while maximizing the expected life.

Power Requirements:

• Input Power: 12 - 24 V DC
• Current Draw: 50 mA

** Optional power input choices available

H2S Sensors:

• H2S-1x PPM H2S Sensor: 0 - 200 Max PPM Range
• H2S-2x PPM H2S Sensor: 0 - 2000 Max PPM Range
• H2S-3x PPM H2S Sensor: 0 - 10000 MAX PPM Range

H2S sensors should be periodically calibrated. Factory recommendation is every 1 - 3 months or as the application dictates.

Sensors offer excellent linearity when calibrated to a certified span gas.