Crowcon IRmax Gas Detector (Infra Red)
Fixed Gas Detectors
Crowcon IRmax | ATEX Zone 1 & Zone 2 Hazardous Areas
Single Gas & Multi-gas Detectors | Fixed Point Gas Detection & Portable Gas Safety Applications | Industrial Locations & Hazardous Area Zones
The Crowcon IRmax fixed gas detector is an infrared (IR) flammable gas detector which is designed is provide a rapid, fail-safe detection of methane, butane, propane and many other hydrocarbon gases and vapours.
IRmax fixed gas detection equipment is compact, low power and reliable even in hot, cold, wet and saline environments making it an ideal fixed gas detector for offshore applications.
The IRmax gas detector offers the choices of a detector only, a local gas/status display, a remote gas/status display or non-intrusive calibration via an intrinsically safe calibration tool or hand-held HART communicator.
IRmax fixed gas detector consume less than 1W of power ensuring compatibility with a wide range of control systems and have a variety of installation options including wall mounted, pipe mounted and connected to an auxiliary junction box.
The IRmax fixed gas detector is also water and dust resistant to IP66.
Crowcon IRmax Fixed Gas Detector – Key Features
Should you require any further technical support and specification advice about the IRmax Gas Monitor manufactured by Crowcon please do not hesitate to contact us.
- Simple Installation – The Crowcon IRmax is compact in size with industry standard 4-20mA output with various installation options and options for HART communications and RS-485 Modbus
- Maintenance – The IRmax has a remote non-intrusive calibration, a hand-held intrinsically safe calibrator and STAY-CLIR optics
- Low Power Consumption – The IRmax consumes less than 1W of power. The gas detector also has an automatic optical obscuration monitoring and an annual proof-test interval
Crowcon IRmax 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.
The reliability of IRmax has been proven in hot, cold, wet and saline environments, making it ideal for use offshore
Crowcon IRmax Fixed Gas Detector – Product Specification
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||IRmax: 158 x 75 x 57mm (6.2 x 2.9 x 2.3 inches) | IRmax with Fixed IR display: 230 x 75 x 57mm (9 x 2.9 x 2.3 inches) | IRmax with IS Barrier Module: 261 x 75 x 57mm (10.2 x 2.9 x 2.3 inches) | Remote IR Display: 60 x 54 x 48mm (2.3 x 2.1 x 1.9 inches)|
|Weight||IRmax: 1.58kg (3.5lbs) | IRmax with Fixed IR display: 2kg (4.4lbs) | IRmax with IS Barrier Module: 2.4kg (5.3lbs) | Remote IR Display: 0.2kg (0.4lbs)|
|Enclosure Material||316 Stainless Steel|
|Description||Dual-beam infrared hydrocarbon gas detector with optional display|
|Power||12-30Vdc < 1W|
|Connection||One M20 or ½” NPT cable gland entry|
|Operating Temperature||-40 to +75ºC (-40ºF to 167ºF)|
|Humidity||0-100% RH non-condensing|
|Repeatability||+/- 2% FSD|
|Zero Drift||+/- 2% FSD per year maximum|
|Response Time||T-90 < 4 seconds|
|Performance||Complies with EN60079-29-1|
|Functional Safety||IEC61508:2010, EN50402:2005 SIL 2|
|Hazardous Area Approvals – ATEX & IECEx||IRmax without Display: Ex II 2 GD Exd IIC T6 Gb (Tamb -40 to +50ºC) T4 (Tamb -40 to +75ºC), Ex tb IIIC T135ºC Db (Tamb -40 to +75ºC)
IRmax with Fixed Display: Ex II 2 G Exd ia IIC T4 Gb (Tamb -40 to +75ºC)
IRmax with Remote Display: Ex II 2 GD Exd ia IIC T4 Gb (Tamb -40 to +75ºC), Ex tb IIIC T135ºC Db (Tamb -40 to +40ºC)
|Zones||Certified for use in Zone 1 & 2 and Zone 21 & 22 hazardous areas|
|EMC Compliance||EN 50270:2006, FCC CFR47, Part 15B ICES-003|
|Accuracy||+/- 2% of reading|
|Linearity||+/- 3% of full scale|
Crowcon IRmax Fixed Gas Detector – Gases And Ranges Detected
|Methane (CH4)||0-20, 50, 100% LEL|
|Acetone (C3H6O)||0-100% LEL|
|Butane (C4H10)||0-100% LEL|
|Ethanol (C2H5OH)||0-100% LEL|
|Ethylene (C2H4)||0-100% LEL|
|Ethyl Acetate (C4H8O2)||0-100% LEL|
|Heptane (C7H16)||0-100% LEL|
|Hexane (C6H14)||0-100% LEL|
|Octane (C8H18)||0-100% LEL|
|Methanol (CH3OH)||0-100% LEL|
|Pentane (C5H12)||0-100% LEL|
|Petrol Vapour||0-100% LEL|
|Propane (C3H8)||0-100% LEL|
|Propylene (C3H6)||0-100% LEL|
|THF (Tetrahydrofuran) (C4H8O)||0-100% LEL|
|Xylene (C8H10)||0-100% LEL|
|Methyl Acetate (C3H6O2)||0-100% LEL|
|Propylacetate (C5H10O2)||0-100% LEL|
|Hexene (C6H12)||0-100% LEL|
|Paraxylene (C8H10)||0-100% LEL|
|Ethane (C2H6)||0-100% LEL|
|Ethylene Dichloride (EDC)||0-100% LEL|
|Cyclohexane (C6H12)||0-100% LEL|
|Butadiene (C4H6)||0-100% LEL|
|Toluene (C7H8)||0-100% LEL|
|Butene (C4H8)||0-100% LEL|
|Hexane (C6H14)||0-100% LEL|
Crowcon IRmaX – Hazardous Area ATEX Certified Gas Detector
Hazardous Area Classification
IRmax without Display
Ex II 2 GD Exd IIC T6 Gb (Tamb -40 to +50°C), T4 (Tamb -40 to +75°C), Ex tb IIIC T135°C Db (Tamb -40 to +75°C)
IRmax with Fixed Display
Ex II 2 G Exd ia IIC T4 Gb (Tamb -40 to +75°C)
IRmax with Remote Display
Ex II 2 GD Exd ia IIC T4 Gb (Tamb -40 to +75°C) Ex tb IIIC T135°C Db (Tamb -40 to +40°C)
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 IRmax.
➡ Did you know? Crowcon fixed gas detectors protect plant; portable gas detectors protect people.