Crowcon Xgard

Crowcon Xgard IR Fixed Gas Detector

Developed using a dual wavelength infrared sensor, Crowcon have produced the Xgard IR, an explosion proof gas detector, that can reliably detect hazardous gases and vapours. The Xgard IR uses the advantages of IR technology in an affordable configuration.

Xgard IR Features:

  • Fail safe sensor technology
  • Immune to poisoning
  • No damage by over-gassing
  • Fast response
  • Does not need oxygen to work
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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.

Low cost of ownership

  • >5 year sensor life
  • Low maintenance requirement
  • Simple parts replacement
  • Lowest power consumption in class (half the consumption of catalytic beads)

Highly versatile

  • Industry standard 4-20mA output
  • Compatible with virtually any control system
  • ATEX, IECEx, UL and MED marine approved**

Rugged and reliable

  • Corrosion resistant aluminium or 316 stainless steel construction
  • IP65 ingress protection
  • Long-life tungsten IR lamp
  • Full temperature compensation
  • Accessories for wet environments
  • 2 year warranty

Choice of sensors

  • Hydrocarbon for detecting HC gases in flammable concentrations
  • Carbon Dioxide for CO2 detection in toxic concentrations

 

Specifications

Type 1 Type 2 Type 3 Type 4 Type 5 Type 6
Size 156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches) 195 x 166 x 111mm (7.6 x 6.5 x 4.3 inches) 156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)
Weight Nylon: 0.5 kgAlloy: 1kg (2.2lbs)316 S/S: 3.1kg (6.8lbs) Aluminium: 1kg (2.2lbs)Stainless steel: 3.1kg (6.8lbs) 1.5 kg (3.3lbs) Aluminium: 1kg (2.2lbs) Stainless steel: 3.1kg (6.8lbs)
Enclosure material ATEX certified: Glass reinforced nylon or 316 S/SUL Certified: Aluminium or 316 S/S Aluminium or 316 Stainless Steel Aluminium Aluminium or 316 Stainless Steel
Ingress protection IP65 IP54 IP65
Cable entries 1 x M20, 1/2 “NPT or 3/4 NPT* on right-side
Terminations 0.5 to 2.5mm2
Sensor type Electrochemical Catalytic bead 316 S/S sensor housing with catalytic beads Catalytic bead Thermal conductivity
Operating temperature -40 to +50 °C
(-40 to 122 °F)
(sensor dependant)
-20 to +50°C (-4 to 122°F) -40 to +80°C
(-40 to 176°F)
-20 to +150°C (-4 to 302°F) -40 to +55°C (-40 to 131°F) +10 to +55°C (50 to 301°F)
Humidity 10 to 95% RH non-condensing 0-99% RH non-condensing 0-90% RH
Repeatability Zero drift <2% FSD (Typical)<2% FSD per Month (Typical)
Response time T90 <15s OxygenT90 <30s to 120s Toxic(sensor dependant) T90 <15s (Typical)
Operating voltage 8-30V dc 2.0V dc +/- 0.1V (Typical) 10-30V dc
Power requirements 24mA maximum 300mA (Typical) 50mA at 24V dc 1.2W
Electrical output 2- wire 4-20mA (current sink) 3- wire mV bridgeTypical signal: 12-15mV/ %LEL CH4 3- wire mV bridgeTypical signal: >10mV/%LEL CH4 3- wire 4-20mA (current sink or source)
Approvals ATEX: II 1 G
Exia IIC T4 Ga
(Tamb -40 to +55°C)
UL/cUL: Class I, Div. 1
Groups A, B, C, D
IECEx
EAC
ATEX: II 2GD
Exd IIC T6 Gb (Tamb -40 to +50°C)
UL: Class I, Div. 1
Groups B, C, D
IECEx
EAC
ATEX: II 2 GD
Exd IIC T4 Gb
(Tamb -40 to +80°C)
Exd IIC T6 Gb (Tamb -40 to +50°C)
Ex tb IIIC
T180°C Db
UL: Class I, Div. 1
Groups B, C, D
IECEx
EAC
ATEX: II 2 GDExd IIC T3 Gb (Tamb -40 to +150°C) ATEX: II 2 GDExd IIC T6 Gb (Tamb -40 to +50°C)
Exd IIC T4 Gb (Tamb -40 to +80°C)
Ex tb IIIC
T180°C Db
UL: Class I, Div. 1
Groups B, C, D
IECEx
EAC
EMC compliance EN 50270       FCC Part 15    ICES- 003

 

 

Xgard IR Infrared Hydrocarbon and CO2 Gas Detector

  • XIR-01 methane 0-100% LEL , aluminium, M20, ATEX
  • XIR-02 methane 0-100% LEL , aluminium, 1/2"NPT, ATEX
  • XIR-03 methane 0-100% LEL , aluminium, 1/2"NPT, UL
  • XIR-05 CO2 0-2%, aluminium, M20, ATEX
  • XIR-06 CO2 0-5%, aluminium, M20, ATEX

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

Xgard IR Spare Sensor Modules

  • XGSBJ 0-100% LEL, methane
  • XGSBL 0-100% LEL, butane
  • XGSBN 0-100% LEL, propane
  • XGSBP 0-100% LEL, ethylene
  • XGSCT 0-100% LEL, ethanol
  • XGSCU 0-100% LEL, hexane
  • XGSCV 0-100% LEL, LPG
  • XGSCX 0-100% LEL, pentane
  • XGSKG 0-100% LEL, Butene
  • XGSBC 0-100% LEL, methanol
  • XGSCY 0-2% vol., CO2
  • XGSHG 0-5% vol., CO2