Crowcon XgardIQ Gas Detector

Crowcon XgardIQ Gas Detectors

Crowcon XgardIQ Gas Detector – call T&D Sales for price, delivery and stock.

Fixed Gas Detectors | Crowcon XgardIQ

Single Gas & Multi-gas Detectors | Fixed Point Gas Detection & Portable Gas Safety Applications | Industrial Locations & Hazardous Area Zones

Crowcon XgardIQ  | ATEX Zone 1 & Zone 2 Hazardous Areas 

The Crowcon XgardIQ is an intelligent and versatile fixed gas detector for the detection of seven different gases dependent upon product setup. Gases include CO, H2S, H2, HF, LPG, CHand O2.

Easy and safe to use, Crowcon XgardIQ gas detection equipment features an OLED display to indicate gas levels and detector status, even in dark locations. There is also a non-intrusive calibration where functions are performed via the display and keypad, without the need for a hot-work permit or any special tools.

The XgardIQ is simple to install and maintain and also features a universal transmitter, hot swap sensor modules as well as an auto sense function. The detector also offers an auto-configure function to detect when a sensor module is plugged-in.

Providing analogue 4-20mA and RS-485 Modbus signals as standard, XgardIQ is optionally available with Alarm and Fault relays and HART communications. The 316 stainless steel are available with three M20 or 1/2” NPT cable entries.

Crowcon XgardIQ Fixed Gas Detector

Key Features

Should you require any further technical support and specification advice about the XgardIQ Gas Detector manufactured by Crowcon please do not hesitate to contact us.

  • Bright LEDs indicate detector status at a glance as the unique Positive Safety LED confirms the detector is operating safely and alerts operators to any irregular events that may affect product integrity such as the ambient temperature exceeding sensor limits. When working safely, the blue LED remains on constantly. If any abnormal conditions are detected the LED will flash and a warning message will be displayed.
  • Flexible signal outputs – XgardIQ provides comprehensive and powerful output signal options; analogue 4-20mA signal with auto sink/source detection feature and RS-485 Modbus communications are provided as standard. Alarm and fault relays featuring heavy-duty changeover contacts, rated 230Vac 5A, are available at purchase or may be added at any time after installation. HART communications can be provided both over the analogue signal and via local increased safety terminals for diagnostics via any HART asset management system or hand-held device.
  • Rugged and robust – ATEX and IECEx certified for use in Zone 1 and Zone 2 hazardous areas, XgardIQ has been designed for long-life operation in extreme environments. Featuring a rugged 316 stainless steel construction and a wide operating temperature range from -40°C to +75°C, XgardIQ is suitable for the most demanding applications.
  • Improved safety – XgardIQ minimises the time personnel spend in potentially hazardous locations by using simple hot-swappable sensor modules. Sensors can be bump tested and calibrated in-situ or removed in seconds using one hand, and either replaced with a pre-calibrated sensor module or re-calibrated in a safe area before being refitted. All functions and adjustments can be made via the integral keypad without the need for special tools or hot-work permits.

Crowcon XgardIQ Bump Testing & Calibration

Routine bump testing is recommended for the range of Crowcon fixed gas detectors prior to each use. Bump testing is a brief application of a gas to the sensor to invoke a prescribed reaction, ensuring the gas detector reacts as expected.

Bump testing provides a quick, easy and direct method of verifying gas detectors are performing as required and takes a lot less time than ‘zeroing’ the device.

The bump test is widely accepted as a suitable method of testing gas detection equipment.

Crowcon Gas Detectors

Crowcon XgardIQ Fixed Gas Detector

Technical data

Crowcon gas detection products provide reliable monitoring of levels of several gas hazard risks including toxic and flammable gases – should you require specific advice about selecting the correct fixed gas detection product for your application please contact us.

Size XgardIQ Transmitter H278 x W140 x D89mm (10.9 x 5.5 x 3.5ins)
Weight XgardIQ Transmitter 4.1kg (9lbs, stainless steel)
Enclosure Material 316 stainless steel
Ingress Protection Rating IP66
Connection Three M20 or 1/2”NPT cable gland entries. Certified, removable plugs are fitted to left-hand and lower right-hand entries
Power 14-30Vdc. < 4W
Display Main Display OLED 128 x 64 pixels, yellow text on black background
Indicators Amber, Red and Green LEDs for detector status
Blue Positive Safety LED
Electrical Output 4-20mA 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 Options Energised or de-energised
Latching or non-latching
Rising or falling
Configurable On and Off delays for alarm relays
Event Logging Records alarm, fault and maintenance events. Events can be viewed on-screen and downloaded to a PC
Operating Temperature Transmitter only: -40ºC to +75ºC (-40ºF to 167ºF)
Sensor Type
Oxygen (-20ºC to +50ºC ambient)
Toxic (-40ºC to +50ºC ambient)
Toxic (a high temperature H2S sensor -40ºC to +75ºC ambient)
Pellistor (-40ºC to +75ºC ambient)
Infra-red (IR) (-20ºC to +55ºC ambient)
Humidity Transmitter 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 Time Sensor dependent: contact Crowcon for specific sensor data
Performance Tested In Accordance With: EN60079-29-1 (flammable gas sensors)
EN50104 (oxygen sensors)
Functional Safety IEC61508, EN50402, SIL 2
Approvals ATEX and IECEx, SGS
Ex II 2 G Ex db ia IIC T4 Gb (see above for ambient temperature ranges)
CU-EAC certificate
EMC Compliance EN50270, EN61000-6-4
FCC CFR47 Part 15B
Gas Detection
Crowcon XgardIQ
Gases And Detection Ranges
Oxygen (O2) Electrochemical %Vol 30 25 19 (falling) 17 (falling) -20 to +50
Ammonia (NH3) Electrochemical PPM 100/1000 50 25 35 -20 to +40
Carbon Monoxide (CO) Electrochemical PPM 1000 250 30 200 -30 to +50
Hydrogen Fluoride (HF) Electrochemical PPM 10 10 1.8 3 +5 to +40
Hydrogen Sulphide (H2S) Electrochemical PPM 100/200 25 5 10 -30 to +50
Mercaptan (CH3SH) Electrochemical PPM 14 14 5 10 -10 To +40
Ozone (O3) Electrochemical PPM 1 1 0.1 0.2 -20 to +40
Sulphur dioxide (SO2) Electrochemical PPM 100 10 1 1 -30 to +50
Hydrogen (H2) Pellistor %LEL 100 100 20 40 -40 to +75
LPG Pellistor %LEL 100 100 20 40 -40 to +75
Methane (CH4) Pellistor %LEL 100 100 20 40 -40 to +75
Pentane (C5H12) Pellistor %LEL 100 100 20 40 -40 to +75
Propane (C3H8) Pellistor %LEL 100 100 20 40 -40 to +75
Ethanol (C2H6O) IR %LEL 100 100 20 40 +10 to +55
LPG IR %LEL 100 100 20 40 -20 to +55
Methane (CH4) IR %LEL 100 100 20 40 -20 to +55
Pentane (C5H12) Propane (C3H8) IR IR %LEL %LEL 100100 100100 2020 4040 -20 to +55 -20 to +55

Hazardous Area Classification

Ex II 2 G Ex d ia IIC T4 Gb (-40 to +75°C)

Crowcon XgardIQ includes an Ex d flameproof electronics/terminal area with an individual Galvanic Isolator that provides an Ex i Intrinsically Safe interface to the display module and sensor module – the gas detector is certified Ex d ia for use in ATEX/IECEx hazardous area Zone 1 and Zone 2.

Crowcon XgardIQ Gas Detector

Crowcon XgardIQ Gas Detector – intelligent and versatile gas detector and transmitter

Visit hazardous area gas detectors for explosion and flameproof gas monitoring and detection instruments with certification for potentially explosive atmospheres, including Zone 1 and Zone 2 (according to ATEX and IECEx) and Class/Division categories (according to North American standards).

T&D provide competitive prices and delivery for all Crowcon Gas Detectors, including the Crowcon XgardIQ.

Did you know? Crowcon fixed gas detectors protect plant; portable gas detectors protect people.


T&D Sales Team are Certificated by Crowcon to support the specification and supply of their flammable and toxic gas detectors. Additionally, T&D are CompEx Certificated and competent in understanding hazardous area classifications and site requirements for the sale of explosion and flameproof equipment.

Data Sheets