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Crowcon IRmax Infrared (IR) Gas Detector

Crowcon IRmax Infrared (IR) Gas Detector

IRmax is an ultra-compact infrared (IR) gas detector that delivers rapid, fail-safe detection of hydrocarbon gases and vapours. The IRmax 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.

Simple to Install:

  • Compact size – requires less space, effort and time to install
  • Various installation options – 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 – compatible with virtually any control system
  • Options for HART communications and RS-485 Modbus

 

Find out more on our sister site Cadmus Products

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Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

The reliability of IRmax has been proven in hot, cold, wet and saline environments, making it ideal for offshore. IRmax’s unique Stay Clir optical components are treated with a highly durable coating that completely prevents faults due to condensation. As IRmax contains no components for artificially heating optical surfaces, power consumption is dramatically reduced, requiring only 1W of power.

Easy maintenance

  • Remote non-intrusive calibration – 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
  • Hand-held Intrinsically Safe (I.S) calibrator – IRmax detectors fitted with an I.S barrier module can be checked and calibrated using an I.S handheld display
  • STAY-CLIR optics – prevents condensation on optical components

Low cost of ownership

  • Low power – only consumes 1W of power, enabling small power supplies and battery back-up systems to be used
  • Automatic optical obscuration monitoring – minimal routine maintenance keeps costs down
  • Annual proof-test interval

 

 

  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.

 

 

IRmax Infrared Hydrocarbon Gas Detector

  • IRMAX-01 Methane, 0-100% LEL no display, M20, ATEX, 4-20mA sink
  • IRMAX-02 Methane, 0-100% LEL no display, M20, ATEX, 4-20mA source
  • IRMAX-03 Methane, 0-100% LEL fixed display, M20, ATEX, 4-20mA sink
  • IRMAX-04 Methane, 0-100% LEL fixed display, M20, ATEX, 4-20mA source
  • IRMAX-05 Methane, 0-100% LEL fixed display, 1/2"NPT, ATEX, 4-20mA+ HART source
  • IRMAX-06 Methane, 0-100% LEL IS barrier module, M20, ATEX, 4-20mA sink
  • IRMAX-07 Methane, 0-100% LEL IS barrier module, M20, ATEX, 4-20mA source
  • IRMAX-08 Butane 0-100% LEL no display, M20, ATEX, 4-20mA sink
  • IRMAX-09 Butane 0-100% LEL no display, M20, ATEX, 4-20mA source
  • IRMAX-10 Butane 0-100% LEL IS barrier module, M20, ATEX, 4-20mA sink
  • IRMAX-11 LPG 0-100% LEL no display, M20, ATEX, 4-20mA sink
  • IRMAX-12 LPG 0-100% LEL no display, M20, ATEX, 4-20mA source
  • IRMAX-13 LPG 0-100% LEL IS barrier module, M20, ATEX, 4-20mA sink

Note: The above list of short codes are the most commonly ordered configurations.

  • IRmax Remote and Hand-Held IR Display Options C011151/1 IR Display - Remote Version
  • C011152/1 IR Display - Remote Version With HART
  • C011205 IR Display - Hand-Held Version

IRmax I.S. Remote Display connecting leads

  • E07988 1.5 metre connecting lead.
  • E07990 5 metre connecting lead.
  • E07989 10 metre connecting lead.
  • E07991 15 metre connecting lead.
  • E07992 20 metre connecting lead.
  • E07993 25 metre connecting lead.
  • E07994 30 metre connecting lead.
  • M040400 Connector only (Bulgin, for customer made leads)

IRmax Accessories

  • C011204/2 Remote calibration box.
  • C011301 Remote calibration box.