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Crowcon IRmax Fixed Gas Monitor

SKU
Crowcon IRmax

Product Features

  • Compact size
  • Various installation options
  • Industry-standard 4-20mA output
  • Remote non-intrusive calibration
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information
Crowcon IRmax Fixed Gas Monitor is available to buy in increments of 1
The Crowcon 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.

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.

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
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.
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