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Product information

  • Product: Crowcon
  • Category: Fixed Gas Detectors
  • Project URL: IRmax

IRmax

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 IR 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 calibration accessory
  • 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

Specification

Size IRmax
158 x 75 x 57mm (6.2 x 2.9 x 2.3ins)
IRmax with Fixed IR display
230 x 75 x 57mm (9 x 2.9 x 2.3ins)
IRmax with IS Barrier Module
261 x 75 x 57mm (2.3 x 2.9 x 2.3ins)
Remote IR Display
60 x 54 x 48mm (2.3 x 2.1 x 1.9ins)
Weight IRmax
1.58kg (3.5lbs)
IRmax with Fixed IR display
1.58kg (3.5lbs)
IRmax with IS Barrier Module
2.4kg (5.3lbs)
Remote IR Display
0.2kg (0.4lbs)
Environment Operating temperature:
    IRmax
  • -40°C to +75°C (-40°F to 167°F)
  • IRmax with Fixed IR display
  • -40°C to +75°C (-40°F to 167°F)
  • IRmax with IS Barrier Module
  • -40°C to +75°C (-40°F to 167°F)
  • Remote IR Display
  • -40°C to +75°C (-40°F to 167°F)
Ingress Protection:
    IRmax
  • IP66
  • IRmax with Fixed IR display
  • IP66
  • IRmax with IS Barrier Module
  • IP66
  • Remote IR Display
  • IP66
Humidty:
    IRmax
  • 0 to 100% RH non-condensing
  • IRmax with Fixed IR display
  • 0 to 100% RH non-condensing
  • IRmax with IS Barrier Module
  • 0 to 100% RH non-condensing
  • Remote IR Display
  • 0 to 100% RH non-condensing
Approvals IRmax
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)
IRmax with Fixed IR display
Ex II 2 G
Exd ia IIC T4 Gb (Tamb -40to+75°C)
IRmax with IS Barrier Module
Remote IR Display
Ex II 2 GD
Exd ia IIC T4 Gb (Tamb -40to+75°C)
Ex tb IIIC T135°C Db (Tamb -40 to +40°C)
Enclosure material IRmax
316 stainless steel
IRmax with Fixed IR display
316 stainless steel
IRmax with IS Barrier Module
316 stainless steel
Remote IR Display
316 stainless steel
Connection IRmax
One M20 or 1/2” NPT cable gland entry
IRmax with Fixed IR display
One M20 or 1/2” NPT cable gland entry
IRmax with IS Barrier Module
One M20 or 1/2” NPT cable gland entry
Remote IR Display
One M20 or 1/2” NPT cable gland entry
Power IRmax
12-30 Vdc. < 1W
IRmax with Fixed IR display
12-30 Vdc. < 1W
IRmax with IS Barrier Module
12-30 Vdc. < 1W
Remote IR Display
12-30 Vdc. < 1W
Electrical output IRmax
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)
IRmax with Fixed IR display
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)
IRmax with IS Barrier Module
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)
Remote IR Display
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)
Repeatability IRmax
+/- 2% FSD
IRmax with Fixed IR display
+/- 2% FSD
IRmax with IS Barrier Module
+/- 2% FSD
Remote IR Display
+/- 2% FSD
Zero drift IRmax
+/- 2% FSD per year maximum
IRmax with Fixed IR display
+/- 2% FSD per year maximum
IRmax with IS Barrier Module
+/- 2% FSD per year maximum
Remote IR Display
+/- 2% FSD per year maximum
Response time IRmax
T-90 <4 seconds
IRmax with Fixed IR display
T-90 <4 seconds
IRmax with IS Barrier Module
T-90 <4 seconds
Remote IR Display
T-90 <4 seconds
Performance IRmax
Complies with EN60079-29-1
IRmax with Fixed IR display
Complies with EN60079-29-1
IRmax with IS Barrier Module
Complies with EN60079-29-1
Remote IR Display
Complies with EN60079-29-1
Functional safety IRmax
Validation to IEC61508:2010, EN50402:2005 SIL 2
IRmax with Fixed IR display
Validation to IEC61508:2010, EN50402:2005 SIL 2
IRmax with IS Barrier Module
Validation to IEC61508:2010, EN50402:2005 SIL 2
Remote IR Display
Validation to IEC61508:2010, EN50402:2005 SIL 2
EMC Compliance IRmax
EN50270:2006, FCC CFR47 Part 15B, ICES-003
IRmax with Fixed IR display
EN50270:2006, FCC CFR47 Part 15B, ICES-003
IRmax with IS Barrier Module
EN50270:2006, FCC CFR47 Part 15B, ICES-003
Remote IR Display
EN50270:2006, FCC CFR47 Part 15B, ICES-003
Pressure range IRmax
Atmospheric +/- 10%
IRmax with Fixed IR display
Atmospheric +/- 10%
IRmax with IS Barrier Module
Atmospheric +/- 10%
Remote IR Display
Atmospheric +/- 10%
Zones IRmax
Certified for use in Zone 1 & 2, and Zone 21 & 2 hazardous areas
IRmax with Fixed IR display
Certified for use in Zone 1 & 2, and Zone 21 & 2 hazardous areas
IRmax with IS Barrier Module
Certified for use in Zone 1 & 2, and Zone 21 & 2 hazardous areas
Remote IR Display
Certified for use in Zone 1 & 2, and Zone 21 & 2 hazardous areas

Download

Certificate Datasheet Manual
ATEX Certificate (Auxiliary Junction Box) IRmax – European English IRmax Manual – Multi language (Issue 6th October 2017)
ATEX Certificate (Spigot gland) IRmax – US English (Letter size) IRmax MODBUS Map 485 Manual (Issue 6 – Jan 2020)
IECEx Certificate (Spigot gland) IRdisplay (Multi Language)
SIL Certificate IRmax GLC-046X IR-Display HART Field Device Specification
ATEX Certificate Issue 5 – IRMAX (no display) GLC-070X IRmax HART Field Device Specification
ATEX Certificate Issue 6 – IRMAX (with display) IRmax & IREX Accessories Manual Issue 3 Jan 16
IECEx Certificate Issue 6 – IRMAX (no display)
IECEx Certificate Issue 7 – IRMAX (with display)
IECEx Certificate (Auxiliary Junction Box)