Crowcon XgardIQ Fixed Gas Detector Transmitter

Crowcon XgardIQ Fixed Gas Detector Transmitter

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Crowcon XgardIQ Fixed Gas Detector Transmitter

Crowcon XgardIQ Fixed Gas Detector Transmitter

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Crowcon XgardIQ Fixed Gas Detector Transmitter

Designed to minimise the time users spend in hazardous areas, the Crowcon XgardIQ Fixed Gas Detector is an innovative safety solution.

This intelligent fixed-point gas detector is compatible with the full range of Crowcon sensor technologies. It uses simple hot-swappable sensor modules that are bump-tested and calibrated in seconds, reducing the amount of time the user spends in a hazardous environment.

This branded device provides a bright OLED display that displays status information, while bright LEDs indicate status at a glance. If any abnormal conditions are detected, the LEDs will flash and a warning message will be displayed.

Key Features

  • Fixed-point gas monitor.
  • Compatible with Crowcon’s full range of sensor technologies.
  • Available fitted with a variety of flammable, toxic or oxygen gas sensors.
  • Features positive safety indicators for quick status checks.
  • Bright & clear OLED display.
  • The event log function stores all event reports to be viewed on-screen or downloaded.
  • Sensors are easily replaced with one hand.
  • The auto-sense function detects whether the control system is a 4-20mA current sink or source.
  • The auto-configure function detects when a sensor module is plugged in.
  • Alerts user when calibration is due.
  • Dimensions: H278 x W140 x D89mm.
  • Weight: 4.1kg.
  • Material: stainless steel.
  • ATEX approved.
  • Conformance: IP66.

Compatible Gas Types

Click here to find out what other gas detectors, spares & accessories we have to offer; also check out our handy blog article on The Origin of Portable Gas Detectors.


SizeXgardIQ transmitterH278 x W140 x D89mm (10.9 x 5.5 x 3.5ins)
WeightXgardIQ transmitter4.1kg (9lbs, stainless steel)
Enclosure material316 stainless steel
Ingress protectionIP66
ConnectionThree M20 or 1/2”NPT cable gland entries. Certified, removable
plugs are fitted to left-hand and lower right-hand entries
Power14-30Vdc. < 4W
DisplayMain displayOLED 128 x 64 pixels, yellow text on black background
IndicatorsAmber, Red and Green LEDs for detector status
Blue Positive Safety LED
Electrical output4-20mA current sink or source (auto-sense or manual selection)
Warning and fault signals are configurable
NAMUR NE 43 compliant
RS-485 Modbus RTU
HART 7 over 4-20mA signal and via local I.S. test points (optional)
Relays (optional)Alarm 1, Alarm 2, Fault
SPDT contacts rated 5A, 230Vac (Fault relay: SPST contacts)
Relay configuration
Energised or de-energised
Latching or non-latching
Rising or falling
Configurable On and Off delays for alarm relays
Event loggingRecords alarm, fault and maintenance events. Events can be
viewed on-screen and downloaded to a PC
Operating temperatureTransmitter only: -40o
C to +75o
C (-40o
F to 167o
Sensor type
Oxygen (-20o
C to +50o
C ambient)
Toxic (-40o
C to +50o
C ambient)
Toxic (a high temperature H2S sensor -40o
C to +75o
C ambient)
Pellistor (-40o
C to +75o
C ambient)
Infra-red (IR) (-20o
C to +55o
C ambient)
HumidityTransmitter only: 0 to 95% RH non-condensing
Note: sensor humidity operating range may vary. Contact Crowcon for specific sensor data
Repeatability+/- 2% FSD
Zero drift+/- 2% FSD per year maximum
Response timeSensor dependent: contact Crowcon for specific sensor data
PerformanceTested in
accordance with:
EN60079-29-1 (flammable gas sensors)*
EN50104 (oxygen sensors)*
Functional safetyIEC61508, EN50402, SIL 2*
ApprovalsATEX and IECEx, SGS
Ex II 2 G Ex db ia IIC T4 Gb (see above for ambient temperature ranges)
CU-EAC certificate
EMC complianceEN50270, EN61000-6-4
FCC CFR47 Part 15B

Sensor Ranges

GasSensor TypeUnitsMax range*Standard
level 1+
level 2+
range °C
Oxygen (O2)Electrochemical%Vol302519 (falling)17 (falling)-20 to +50
Ammonia (NH3)Electrochemicalppm100/1000502535-20 to +40
Carbon Monoxide (CO)Electrochemicalppm100025030200-30 to +50
Hydrogen Fluoride (HF)Electrochemicalppm10101.83+5 to +40
Hydrogen Sulphide (H2S)Electrochemicalppm100/20025510-30 to +50
Hight Temp (H2S)Electrochemicalppm100100510-30 to +70
Chlorine (Cl2)Electrochemicalppm205, 10 or 200.51-20 to +50
Ozone (O3)Electrochemicalppm110.10.2-20 to +40
Sulphur dioxide (SO2)Electrochemicalppm1001011-30 to +50
Hydrogen (H2)Pellistor%LEL1001002040-40 to +75
Methane (CH4)Pellistor%LEL1001002040-40 to +75
Pentane (C5H12)Pellistor%LEL1001002040-40 to +75
Propane (C3H8)Pellistor%LEL1001002040-40 to +75
Ethanol (C2H6O)IR%LEL1001002040-20 to +55
LPGIR%LEL1001002040-20 to +55
Methane (CH4)IR%LEL1001002040-20 to +55
Pentane (C5H12)IR%LEL1001002040-20 to +55
Propane (C3H8)IR%LEL1001002040-20 to +55

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