IRMAX

IRmax is a compact, low power and highly rugged infrared (IR) gas detector, that delivers rapid, fail-safe detection of methane, butane, propane and many other hydrocarbon gases and vapours. The IRmax infrared gas detection system offers the choice of a detector only, a local gas/status display, a remote gas/status display or non-intrusive calibration via an I.S. calibration tool or hand-held HART communicator.

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Dependability in all conditions is what makes the IRmax stand out from the crowd, with the reliability of the IRmax hydrocarbon detector proven in hot, cold, wet and saline environments.

IRmax’s unique Stay-ClIR optical components are treated with a highly durable coating that completely prevents faults due to condensation, making it ideal for offshore use.

Certified for use in Zone 1 & 2 and EMC compliant*, the IRmax is compatible with virtually any control system, requiring minimal routine maintenance helping keep costs at a minimum. The IRmax also contains no components for artificially heating optical surfaces, meaning power consumption is dramatically reduced, requiring only 1W of power.

The remote display can be mounted up to 30 metres from the IRmax and test gas can be applied without requiring direct access to the detector. It can also be wall mounted, fitted to a 50mm (2 inch) pipe or connected to an auxiliary junction box, making it a reliable and versatile choice for hydrocarbon gas detection.

*Directive 2014/30 EU: EN50270, FCC CFR47 Part 15B, ICES-003

Simple to install

Easy maintenance

Low cost of ownership

Ideal for offshore use

IR dependability

Simple to Install

Its compact size requires less space, effort and time to install
Can be wall mounted, fitted to a 50mm (2 inch) pipe, or connected to an auxiliary junction box using a choice of mounting accessories
Industry standard 4-20mA output is compatible with virtually any control system
Options for HART communications and RS-485 Modbus

	IRmax	IRmax with Fixed IR display	IRmax with IS Barrier Module	Remote IR Display
Size	158 x 75 x 57mm (6.2 x 2.9 x 2.3ins)	230 x 75 x 57mm (9 x 2.9 x 2.3ins)	261 x 75 x 57mm (2.3 x 2.9 x 2.3ins)	60 x 54 x 48mm (2.3 x 2.1 x 1.9ins)
Weight	1.58kg (3.5lbs)	2kg (4.4lbs)	2.4kg (5.3lbs)	0.2kg (0.4lbs)
Ingress protection	IP66
Enclosure material	316 stainless steel
Power	12-30 Vdc. < 1W
Connection	One M20 or 1/2” NPT cable gland entry
Electrical output	4-20mA current sink or source 2mA dirty optics warning (at 75% obscuration, configurable) 0mA detector fault signal (at 90% obscuration, configurable) RS-485 Modbus (optional), HART 7 (optional)
Operating temperature	-40°C to +75°C (-40°F to 167°F)
Humidity	0 to 95% RH non-condensing
Pressure range	Atmospheric +/- 10%
Repeatability	+/- 2% FSD
Zero drift	+/- 2% FSD per year maximum
Response time	T-90 <4 seconds
Functional safety	Validation to IEC61508, EN50402 SIL 2
Approvals	Ex II 2 GD Exd IIC T6 Gb (Tamb -40to+50°C), T4 (Tamb -40to+75°C) Ex tb IIIC T135°C Db (Tamb -40 to +75°C)	Ex II 2 G Exd ia IIC T4 Gb (Tamb -40to+75°C)		Ex II 2 GD Exd ia IIC T4 Gb (Tamb -40to+75°C) Ex tb IIIC T135°C Db (Tamb -40 to +40°C)
EMC compliance	Directive 2014/30 EU: EN50270, FCC CFR47 Part 15B, ICES-003
Zones	Certified for use in Zone 1 & 2.

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