Xgard Bright



This flameproof (Exd) detector is housed within our high-grade aluminium alloy case. Certifications include gas and dust approvals for ATEX and IECEX with UL gas certification in progress.


  • Flammable and toxic gas detection and oxygen monitoring – Reducing training requirements across sites
  • Choice of M20 or ½”NPT connection – Supports multiple site requirements
  • Low power requirement (~3W max) – Reducing site-wide power consumption
  • IP65 or IP66 rating (with weatherproof cap) – Allows use in areas subject to regular wash downs or in exposed environments

Ease of installation and operation:

  • Addressable – Drastically reduces the amount of cabling needed for multi-point installations
  • Local display – Delivers gas level indication, status and supports maintenance routines
  • Non-intrusive calibration – Removes the need to open the cover for calibration
  • Plug in type terminal blocks: Making wiring quick and easy reducing installation costs
  • Configuration via magnetic key – Reducing the amount of time operators spend in a hazardous area


Size 156 x 166 x 109mm (6.1 x 6.5 x 4.3inch)
Cable Entry 2x M20 (stopping plug fitted to left-side entry)
Power 10-30Vdc. 3W max
Electrical Output 4-20mA current sink or source
RS-485 Modbus RTU
HART (Optional)
Weight Aluminium alloy 1kg (2.2lbs)
Enclosure Material ADC 12 aluminium alloy
Relay Alarm 1, Alarm 2, Fault

SPST contacts rated 1A 30Vdc

Sounder Out 24Vdc (nominally), 250mA maximum load
Operating Temperature -40°C to +70°C (-40°F to 158°F)

Note: sensor operating temperatures vary widely.

Refer to the sensor module datasheet or contact

Crowcon for specific sensor data.

Humidity 0 to 95% RH, non-condensing
Repeatability +/- 2% FSD
Zero drift +/- 2% FSD per year maximum
Ingress protection IP65 (IP66 with weatherproof cap)
Approvals ATEX and IECExEx II 2 G Ex db IIC T6 Gb

Ex tb IIIC T80ᶜ Db

II 2 G Ex db IIC T6 Gb

II 2 D Ex tb IIIC T80ᶜ Db

Certificate numbers:

TUV 16 ATEX 7908 X

IECEx TUR16.0035 X

EMC Compliance EN50270: 2015
Standards EN60079-0 :2012 + A11:2013
EN60079-1 :2014
IEC60079-0 :2011 Edition 6
IEC60079-1 :2014 Edition 7
Zones Certified for use in Zone 1 and Zone 2 areas

Gases and Ranges

Gas Units Max
Alarm 1
Alarm 2
range °C 
Oxygen (O2) %Vol 30 25 19 (falling) 17 (falling) -20 to +50
Carbon Monoxide (CO) PPM 1000 250 30 200 -30 to +50
Hydrogen Sulphide (H2S) PPM 100/200 25 5 10  -30 to +50
Hydrogen (H2) %LEL 100 100 20 40 -40 to +75
Methane (CH4) %LEL 100 100 20 40 -40 to +75
Pentane (C5H12) %LEL 100 100 20 40 -40 to +75
LPG %LEL 100 100 20 40 -40 to +75
Carbon Dioxide (CO2) %VOL 0-5% 0-5% 0-2% 0-3% -20 to +50


Collector cone C01051

Aids detection of lighter than air gases such as hydrogen or methane. Includes a pipe spigot for application of bump test gas.

Spray deflector  C01052

For outdoor installations and sensor protection from water sprays.

Weatherproof cap  C01442

For use offshore or very wet environments

Flow adaptor C01339
For use in sampling applications
Sun shield C011063
Prevents against excessive heat build-up due to direct sunlight.
Calibration adaptor C03005
Enables application of calibration gas to the sensor.