ATEX Portable Multi-Gas Detector WatchGas QGM

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The WatchGas QGM is a versatile multi-gas monitor engineered to keep you and your staff safe while working in hazardous environments. The WatchGas QGM offers detection for up to four different gases.

The WatchGas QGM is a versatile multi-gas monitor engineered to keep you and your staff safe while working in hazardous environments. The WatchGas QGM offers detection for up to four different gases.

The WatchGas QGM monitors oxygen, hydrogen sulfide, carbon monoxide, and combustible gases. When the concentrations of these gases exceed the alarm thresholds, the WatchGas QGM alerts the user by vibrating, flashing LEDs, and a 90dB acoustic alarm. An integrated data- and event logger registers peak and average values, alarms, calibration dates, and bump test information for up to two months. All logs can be downloaded to your PC through the WatchGas IR-link software.

The QGM is available as a 2-, 3- or 4-gas monitor.

A catalytic LEL sensor comes as standard. Alternatively, you can specify your QGM with a Non-Dispersive Infrared Sensor. The IR LEL sensor consumes less energy, enhancing the battery life to up to two months on a single charge.

The IR LEL sensor has a few other advantages as well. It can measure combustible gases in the absence of oxygen, making it more useful in environments where oxygen levels may vary. Furthermore, it is less susceptible to poisoning by silicone and sulfur.

Features

  • IECEx and ATEX Zone 0 approved
  • Simple single button operation
  • Durable, grippy housing
  • Displays actual gas concentrations, TWA and STEL values
  • Adjustable alarm levels using the WatchGas IR Link
  • Datalog: up to two months or more
  • Optical, acoustic and vibrating alarms
  • Docking station available for rapid bump test and calibration

Applications

  • Petrochemical plants and factories
  • Tank storage parks
  • Wastewater treatment facilities
  • Mining industry
  • Construction sites
  • Governments/first responders
  • Food and beverage industry

Additional information

Sensor specifications

Range / Resolution

LEL

0-100 % LEL / 1 % LEL

O2

0-30 % VOL / 0.1 % VOL

CO

0-500 ppm / 1 ppm

H2S

0-100 ppm / 0.1 ppm

Measuring type

Diffusion

Operation

Single Button

Alarm Display

Digital LCD display, LCD Backlight, indicator LEDs, flashing alarm

Operation mode display

Visual: LCD alarm display, LCD Backlight, Indicator LED
Acoustic: buzzer (90 db @ 10 cm) and vibrating alarm

Event log

Data log 2 months or more
Event log / calibration log / bump log: 30 event

Mounting type

Stainless steel belt clip

Programming

WatchGas IR Link with PC software

Operation temperature

-20 to +50° C

Operating humidity

10 to 95% RH, non-condensing

Battery

Type: Lithium-ion rechargeable battery
Charging time < 6h

Operation time

QGM-CAT: 24 hours, QGM-IR: 2 months

Housing

Rugged durable housing with impact-proof coating IP67

Dimensions

60 x 40 x 118 mm (WxDxH)

Weight

< 240 g

Approvals

QGM-IR:
Class I, Division 1, Groups A,B,C, and/or D, T4
Ex ia IIC T4 Ga
Class 1, Zone 0, AEx ia IIC T4 Ga
Sira: 18ATEX2059X
Inmetro: Ex ia IIC T4 Ga
CE: Conformité Européenne
EAN-13: 8719992974877 (LEL/O2/CO/H2S)
EAN-13: 8719992974894 (LEL/O2)
EAN-13: 8719992974900 (LEL)

QGM-CAT:
Class I, Division 1, Groups A,B,C, and/or D, T4
Ex da ia IIC T4 Ga
Class 1, Zone 0, AEx da ia T4 Ga
Sira: 18ATEX2059X
Inmetro: Ex da ia IIC T4 Ga
CE: Conformité Européenne
EAN-13: 8719992974917 (LEL/O2/CO/h2S)
EAN-13: 8719992974724 (LEL/O2)
EAN-13: 8719992974931 (LEL)

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