Hydrogen Sulfide (H2S) Single Gas Detector

H2S

Categories: Dock 4, Emergency & Gas Safety Solution

Keeping Workers from Toxic Industrial Gases

Industrial sites in the Oil & Gas, Petrochemical and Offshore sectors can be volatile places if the right safety measures are not in place. You need reliable and ATEX certified gas detectors to keep the workforce safe.

Hydrogen Sulfide (H₂S) may desensitise and render the body unconscious in no time at high concentrations, therefore, reliable personal monitoring equipment is crucial.

ARA H₂S portable alarm is a low cost, wearable clip monitor for the detection of dangerous levels of Hydrogen Sulfide (H₂S). The detector alerts workers when gas concentrations exceed set safety levels.

The ARA H₂S clip monitor operates for 24 months maintenance-free, with continuous operation. The 36-month model, provides you with even more life for a competitive low-cost price, simply slip the detector into hibernation mode when you’re not using it to extend its service life, ideal for contractors who only visit site on occasion.

The H₂S sensor is designed to withstand the harshest industrial working conditions, typical applications include:

Site wide safety
Plant turnaround processes

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ADDITIONAL INFORMATION

Hydrogen Sulfide (H2S) Gas Detector

Features

Designed with practical applications in mind, the ARA Hydrogen Sulfide (H₂S) unit weighs just 92g and is equipped with a sturdy clip for attaching to workwear positioned close to the breathing zone. At only 87mm in length, it does not impede worker movement and is suitable for use in confined space working, such as maintenance to pipes or tankers. As an intrinsically safe model, users can be assured it’s safe in all environments, with a three-signal system of a flashing light, audible alarm, and vibration to alert the wearer of exposure levels reaching dangerous concentrations.

The ARA Hydrogen Sulfide gas detector has a daily self-test feature that tests the audio, visual and vibration alarms to give you confidence that workers are protected.

The ARA IR link* allows you to download 30 recent event logs and configure setting including:

User ID
Low / High alarms
Self test intervals
Bump test intervals

Ultimate Performance

24 months of continuous operation
Live H₂S readings
Event logging download
Water and dust resistant
Robust to withstand extreme operational environments

Ultimate Safety

Instantaneous alarms
Adjustable high/low alarms
Calibration and bump test reminders

Ultimate Flexibility

Lifetime remaining countdown helps users to plan for future projects and site shutdowns
Displayed data option (live reading or lifetime remaining)
Hibernation feature to extend the life of the device up to 36 months.

Hydrogen Sulfide Gas Detector – Technical Specification

Specification	Value
Sensor Type	Single plug-in electrochemical cell
Detection Range	H₂S: 0 to 100 ppm CO: 0 to 300 ppm SO₂: 0 to 50 ppm O₂: 0 to 25 %
Event Log Storage	Last 30 events
Battery	3.6 Vdc, 1.65 Ah, lithium battery
Battery Life / Shelf Life	Standard models: 24 months of operations (2 mins alarms per day) Hibernation models: 36 months of operation (2 mins per day and using sleep function)12 Month Shelf Life
User Options	User ID Low Alarm High Alarm Displayed Data (live reading or lifetime remaining) Bump-Test Interval Calibration Interval Self-test Interval
Alarms	Audio Alarm: (95 dB @ 10 cm) Visual Alarm: LED Vibrating Alarm: Vibrator (operates at ± 10 °C)
Temperature	H2S, CO, SO2: – 40 to 60 °C O2: – 30 to 60 °C Humidity: 5 – 95 % RH
Ingress Protection	IP67
Display	Liquid Crystal Display (LCD)
Weight and Dimensions	92 g (3.2 oz) 87 x 50 x 29 mm (3.4 x 2.0 . 1.1 inch)

* All specifications quoted are at calibration point and under the same ambient conditions.
Specifications are based on isobutylene calibration at 20 ˚C, 90% RH and 1000 mBar
*Model dependant.

Weight & Dimensions