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Crowcon Gasman

The Crowcon Gasman is a compact and rugged personal gas detector, designed for single-gas monitoring in industrial and marine environments. It is suitable for detecting a wide range of toxic gases, oxygen (O₂), and flammable gases, including hydrogen sulfide (H₂S) and carbon monoxide (CO). The Gasman is ideal for environments where personal safety is critical, such as refineries, shipping, water treatment facilities, and the chemical industry. With its clear display, powerful visual, audible and vibrating alarms, and durable housing, the Gasman provides reliable protection in demanding conditions. The device requires minimal maintenance and is built for long-term use in high-risk situations.

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What is it?
Gasman is a compact, single-gas detector that provides personal protection against a wide range of toxic and flammable gases, as well as oxygen. Its rugged design makes it suitable for the toughest industrial environments, including offshore, petrochemical, and maritime sectors. Gasman is portable, lightweight, and designed for continuous monitoring of gas concentrations in the user's breathing zone. With a loud alarm (95 dB), a bright flashing LED warning system, and a vibration alert, the Gasman ensures that the user is immediately notified of dangerous gas levels. The clear display allows real-time gas readings to be seen at a glance.

How does it work?
The Gasman continuously measures the concentration of a specific gas using an internal sensor calibrated to the selected gas (such as H₂S, CO, O₂, etc.). When preset alarm thresholds are exceeded, the device automatically activates visual, audible, and vibrating alerts. The Gasman can be calibrated and configured via an IR interface using a compatible calibration station or through Crowcon’s software tools. Its robust housing is certified to IP65 and IP67 standards, making it dust- and waterproof and suitable for harsh working environments. A powerful battery enables long-term operation, ranging from several days to weeks, depending on the configuration.

What problems does it solve?
Gasman protects workers from acute or chronic exposure to hazardous gases, which is crucial for workplace safety. In sectors where gas leaks or oxygen deficiency can be life-threatening, the Gasman offers a reliable, real-time detection solution. This reduces the risk of accidents, health issues, and damage to equipment. Thanks to its compact size and user-friendly design, Gasman is ideally suited for daily use in high-risk environments.

Dimensions
90 x 48 x 24 mm (3.5 x 1.9 x 0.95 in)

Weight
Flammable: 138g (4.9 oz)
Toxic: 85g (3 oz)
Oxygen: 129g (4.6 oz)
Carbon Monoxide: 139g (4.9 oz)

Typical Response Times (T90)
Flammable: 20s
Flammable (MPS): 17s
Toxic gas: 20s
Oxygen: 10s
Oxygen (long-life): 10s

Alarms
Audible: 95dB; multiple alarm options allow different tones for various alarm levels
Visual: Red/blue dual flashing LEDs for gas hazards
Internal vibration alarm

Display
Custom LCD with backlight showing gas concentration. Graphical icons for battery (with proportional remaining runtime) and display mode. Start-up notification when calibration is due within 30 days, overdue, or when maintenance is needed.
Normal display: Real-time gas concentration levels
Recall display: Peak values and TWA

Data Logging
Fully timed datalogging with adjustable sampling rate, default set to 1-minute interval.
900 hours of storage at 1-minute interval (54,000 logs), >4,800 events

Battery
Rechargeable lithium battery for all gas types
Non-rechargeable lithium battery for toxic gases and oxygen (excluding CO₂)

Runtime
Rechargeable with MPS: >3 days
Rechargeable: Minimum 12 hours (flammable version)
Non-rechargeable: Up to 2 years

Sampling
Optional manual aspiration

Operating Temperature
-20°C to +65°C (-4°F to +149°F)

Humidity
5–95% RH
0–99% RH (O₂ LL MPS)

Ingress Protection
IP65

Certifications
Europe:
Toxic or O₂: ATEX II 1G Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +65°C) BASEEFA04ATEX0384
Flammable: ATEX II 2G Ex ia db IIC T4 Gb (-20°C ≤ Ta ≤ +65°C) BASEEFA04ATEX0383
Flammable (MPS): ATEX II 1G Ex ia IIC T4 Ga (-20°C ≥ Ta ≥ +65°C) BASEEFA04ATEX0383

International:
Toxic or O₂: IECEx Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +65°C) BAS05.0039
Flammable: IECEx Ex db ia IIC T4 Gb (-20°C ≤ Ta ≤ +65°C) BAS05.0038

North America:
CSA Class 1 Groups A, B, C, D Division 1

Standards
Europe: EN60079-0, EN60079-11, EN60079-1, ATEX 2014/34/EU
North America: CSA22.2, 152, EN50270, EN50271, EN61779

PC Interface
RS232 connection via interface module in charger
RS232/USB converter available

Calibration
Gasman can be routinely calibrated using Portables PC software or the Checkbox IMH

Accessories
Gasman comes with an integrated crocodile clip.
Optional accessories:
Gas test kit, Gasman external filter, leather carrying case, single charger, charger interface software and comms kit (excluding PSU), 5-way multi-charger

Crowcon Connect Compatible?
Yes

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