Máy đo đơn khí Crowcon Gasman

Crowcon Gasman Single gas detector, Flexible configuration


Crowcon Gasman is a personal gas detector to monitor the concentration of related gases in the working area, compact, durable, easy to use.

Simple features with only 1 push button, large screen, bright, simple, easy to read, siren alarm, lights and vibration alarm

  • Explosive gas, oxygen or toxic gas detectors can be selected
  • Infrared sensor options can be selected for CO2 measurement
  • Rechargeable battery options for all models
  • Normal battery options for toxic or oxygen detector models
  • Very good machine – Toxic gas detector model only 85g
  • Sirens louden up to 95dBA
  • Visual alarm light 2 blue red LEDs
  • Built-in vibration alarm
  • IP65 and 67 protection levels
  • Real time TWA and Peak display options
  • Can store data and events
  • Rechargeable battery with a 3000 Alarm Minute capacity


Size90 x 48 x 24 mm (3.5 x 1.9 x 0.95 ins)
WeightFlammable: 138g (4.9oz)
Toxic: 118g (4.1oz)
Oxygen: 129g (4.6oz)
Carbon monoxide: 139g (4.9oz)
Typical response times (T90)Flammable: 20s
Toxic gas: 20s
Oxygen: 10s
AlarmsAudible: 95dB; Multiple alarm options let you select distinctive tones for different alarm levels
Visible: Dual colours red/ blue flashing LEDs in a gas hazard
Internal vibrating alarm
DisplayCustom LCD with backlight, with display of gas concentration. Graphic symbols for battery (with proportional indication of remaining operation time), and display mode. Start up indication when calibration is due within 30 days, calibration overdue or service required.
Normal display: Real time gas concentration levels
Display recall: Peak readings and TWA
Data loggingFull timed datalogging with adjustable sample rate, set to 1 min. data rate as default.
900 hours storage at 1 min. interval (54,000 logs), >4800 events
BatteryRechargeable lithium battery for all gas types
Non-rechargeable lithium battery for toxics and oxygen (excluding CO2)
Operating time*Rechargeable: 12 hours minimum for flammable unit
Non-rechargeable: Up to 2 years
SamplingOptional manual aspirator
Operating temperature**-20°C to +65°C (-4°F to +149°F)
Humidity20 to 90% RH
Ingress protectionIP65
ApprovalsEurope: Toxic or O2: ATEX II 1G Ex ia IIC T4 Ga (-20°C ≤ Ta ≤ +65°C) BASEEFA04ATEX0384
Flammable: ATEX II 2G Ex ia d IIC T4 Gb (-20°C ≤°C ≤ +65°C) BASEEFA04ATEX0383
International: Toxic or O2: IECEx BAS05.0039:
IECEx BAS05.0038
North America: CSA Class 1 Groups A,B,C,D Division 1
StandardsEurope: EN60079-0, EN60079-11, EN60079-1
North America: CSA22.2, 152EN50270, EN50271, IEC61508, EN61779, EN45544
PC InterfaceRS232 connection from interface module in charger
RS232/USB converter available
CalibrationGasman can be routinely calibrated using Portables PC software or by using Checkbox IMH


GasRangeStandard Alarm (UK)
Ammonia (NH3)0-100 ppm25 ppm
Carbon monoxide (CO)0-500 ppm30 ppm
Carbon dioxide (CO2)0-5% vol.0.5% vol.
Chlorine (Cl2)0-20 ppm0.5 ppm
Flammable0 – 100% LEL20% LEL
Fluorine (F2)0-1 ppm0.1 ppm
Hydrogen (H2)0-2000 ppmN/a
Hydrogen cyanide (HCN)0-25 ppm5 ppm
Hydrogen fluoride (HF)0-10 ppm1 ppm
Hydrogen sulphide (H2S)0-100 ppm5 ppm
Nitric oxide (NO)0-100 ppm25 ppm
Nitrogen dioxide (NO2)0-20 ppm1 ppm
Oxygen (O2)0-25% vol.19% / 23% vol.
Ozone (O3)0-1 ppm0.1 ppm
Phosphine (PH3)0-5 ppm0.2 ppm
Phosgene (COCL2)0-1 ppm0.1 ppm
Sulphur dioxide (SO2)0-20 ppm1 ppm

Option 1 of the following gases for your Gasman Gas meter:

  • Crowcon Gasman Ammonia Gas Meter (NH3)
  • Crowcon Gasman Carbon monoxide (CO) Gas detector
  • Crowcon Gasman Carbon dioxide (CO2)
  • Crowcon Gasman Chlorine Gas Meter (Cl2)
  • Crowcon Gasman Flammable Gas meter
  • Crowcon Gasman Fluorine Gas Meter (F2)
  • Crowcon Gasman Hydrogen Gas Meter (H2)
  • Crowcon Gasman Hydrogen cyanide (HCN)
  • Crowcon Gasman Hydrogen fluoride (HF)
  • Crowcon Gasman Hydrogen Sulphide Gas Meter (H2S)
  • Crowcon Gasman Nitric oxide Gas Detector (NO)
  • Crowcon Gasman Nitrogen dioxide Gas Meter (NO2)
  • Crowcon Gasman Oxygen Gas Meter (O2)
  • Crowcon Gasman Ozone Gas Detector (O3)
  • Crowcon Gasman Phosphine Gas Meter (PH3)
  • Crowcon Gasman Phosgene Gas Meter (COCL2)
  • Crowcon Gasman Sulphur dioxide (SO2)

Actual images:

Crowcon Gasman Single Gas Meter

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