Compact Crowcon IRmax fixed gas detector

Crowcon IRmax is an extremely compact infrared (infrared gas probe) detector that can quickly and safely detect gases and hydrocarbon vapors. The IRmax gas detection system offers the choice of just one gas detection device, a gas status display at the site, a remote gas status display, or non-intrusive calibration through an IS calibration instrument, tool, or HART handheld communication connection.

Overview

IRmax’s reliability has been proven in hot, cold, humid, solvent, salt environments, making it ideal for offshore applications.

The special optical composition of IRmax is solved with a high-strength coating that is completely resistant to errors caused by evaporation. Just as IRmax does not include optical surface heating components so the power is significantly reduced, which requires only 1W of energy.

IRMAX FEATURES

Easy to install

Compact size – requires less space, effort and time to install.
Wide installation option – can be mounted on the wall, positioned in a 50mm pipe or connected to ani assist box using a choice of mounting and installation accessories.
4~20mA industry standard output – compatible with most control systems.
HART and RS-485 Modbus connection options

Easy maintenance

Non-intrusive remote calibration – IR monitors can be mounted up to 30m from IRmax’s location and gas test can be applied without direct access to the probe.
Handheld calibration equipment – IRmax gas detection heads attached to an IS isolation module can be tested and calibration using a handheld calibration accessory
Stay-Clir optical component avoids vapor adhesion to optical components

Low cost of ownership

Low energy consumption – only 1W is consumed, allowing for small power supply and low backup power system.
Automatic monitoring of optical component dimming – minimal maintenance keeps prices down

SPECIFICATIONS

IRMAX

Size: 158 x 75 x 57mm (6.2 x 2.9 x 2.3ins)
Weight: 1.58kg (3.5lbs)
Protection Level: IP66
Packing: 316 stainless steel
Power supply: 12 – 30Vdc Power consumption < 1W
Connection: One M20 or 1/2″ NPT cable gland entry
Output power signal:
- 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 range: -40°C to +75°C (-40°F to 167°F)
Operating humidity range: 0 to 100% RH non-condensing
Operating pressure range: Atmospheric +/- 10%
Repeatability: +/- 2% FSD
Drift: +/- 2% FSD per year maximum
Response time: T-90 <4 seconds
Compatible: Complies with EN60079-29-1
Functional Safety: Validation to IEC61508:2010, EN50402:2005 SIL 2
Certify:
- 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)
- EMC compliance: EN50270:2006, FCC CFR47 Part 15B, ICES-003
- Zones: Certified for use in Zone 1 & 2, and Zone 21 & 2 hazardous areas

IRMAX WITH FIXED IR DISPLAY

Size: 230 x 75 x 57mm (9 x 2.9 x 2.3ins)
Weight: 2kg (4.4lbs)
Protection Level: IP66
Packing: 316 stainless steel
Power supply: 12 – 30Vdc Power consumption < 1W
Connection: One M20 or 1/2″ NPT cable gland entry
Output power signal:
- 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 range: -40°C to +75°C (-40°F to 167°F)
Operating humidity range: 0 to 100% RH non-condensing
Operating pressure range: Atmospheric +/- 10%
Repeatability: +/- 2% FSD
Drift: +/- 2% FSD per year maximum
Response time: T-90 <4 seconds
Compatible: Complies with EN60079-29-1
Functional Safety: Validation to IEC61508:2010, EN50402:2005 SIL 2
Certify:
- Ex II 2 G Exd ia IIC T4 Gb (Tamb -40to+75°C)
- EMC compliance: EN50270:2006, FCC CFR47 Part 15B, ICES-003
- Zones: Certified for use in Zone 1 & 2, and Zone 21 & 2 hazardous areas

IRMAX WITH IS BARRIER MODULE

Size: 261 x 75 x 57mm (2.3 x 2.9 x 2.3ins)
Weight: 2.4kg (5.3lbs)
Protection Level: IP66
Packing: 316 stainless steel
Power supply: 12 – 30Vdc Power consumption < 1W
Connection: One M20 or 1/2″ NPT cable gland entry
Output power signal:
- 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 range: -40°C to +75°C (-40°F to 167°F)
Operating humidity range: 0 to 100% RH non-condensing
Operating pressure range: Atmospheric +/- 10%
Repeatability: +/- 2% FSD
Drift: +/- 2% FSD per year maximum
Response time: T-90 <4 seconds
Compatible: Complies with EN60079-29-1
Functional Safety: Validation to IEC61508:2010, EN50402:2005 SIL 2
Certify:
- EMC compliance: EN50270:2006, FCC CFR47 Part 15B, ICES-003

REMOTE IR DISPLAY

Size: 60 x 54 x 48mm (2.3 x 2.1 x 1.9ins)
Weight: 0.2kg (0.4lbs)
Protection Level: IP66
Packing: 316 stainless steel
Power supply: 12 – 30Vdc Power consumption < 1W
Connection: One M20 or 1/2″ NPT cable gland entry
Output power signal:
- 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 range: -40°C to +75°C (-40°F to 167°F)
Operating humidity range: 0 to 100% RH non-condensing
Operating pressure range: Atmospheric +/- 10%
Repeatability: +/- 2% FSD
Drift: +/- 2% FSD per year maximum
Response time: T-90 <4 seconds
Compatible: Complies with EN60079-29-1
Functional Safety: Validation to IEC61508:2010, EN50402:2005 SIL 2
Certification: 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: EN50270:2006, FCC CFR47 Part 15B, ICES-003

IRMAX SPECIFICATIONS

	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 100% RH non-condensing
Pressure range	Atmospheric +/- 10%
Repeatability	+/- 2% FSD
Zero drift	+/- 2% FSD per year maximum
Response time	T-90 <4 seconds
Performance	Complies with EN60079-29-1
Functional safety	Validation to IEC61508:2010, EN50402:2005 SIL 2