ARA - Hydrogen Sulfide (H2S) Gas Detector
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
- 24 months of continuous operation
- Live H2S readings
- Event logging download
- Water and dust resistant
- Robust to withstand extreme operational environments
- Instantaneous alarms
- Adjustable high/low alarms
- Calibration and bump test reminders
- 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.
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.