Crowcon XGard Type 1 - Fixed Gas Detector
The Crowcon Xgard range is a comprehensive selection of fixed point gas detectors that meet the diverse requirements for gas detection in industries throughout the world. This includes many water treatment, oil and gas, power, research facility and manufacturing installations. Intrinsically Safe (I.S.) or Flameproof (Exd) versions are available, with case options comprising high-grade alloy, stainless steel or chemically resistant GRN polymer. Certifications include IECEx, ATEX, UL, GOST-R and MED.
Xgard Type 1 detectors are fixed-point Exia Intrinsically Safe toxic and oxygen gas detector using an electrochemical sensor within an Xgard enclosure, which also contains the amplifier/transmitter to provide a 2-wire 4 to 20mA output. Operating temperature -40 to +50°C (range varies for some sensor types).
Type 1 Xgard detectors come in a glass-reinforced nylon material as standard.
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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) |
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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) |
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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 |
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Ingress protection |
IP65 |
IP54 |
IP65 |
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Cable entries |
1 x M20, 1/2 “NPT or 3/4 NPT* on right-side |
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Terminations |
0.5 to 2.5mm2 |
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Sensor type |
Electrochemical |
Catalytic bead |
316 S/S sensor housing with catalytic beads |
Catalytic bead |
Thermal conductivity |
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Operating temperature |
-40 to +50 °C |
-20 to +50°C (-4 to 122°F) |
-40 to +80°C |
-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 |
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Repeatability Zero drift |
<2% FSD (Typical)<2% FSD per Month (Typical) |
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Response time |
T90 <15s OxygenT90 <30s to 120s Toxic(sensor dependant) |
T90 <15s (Typical) |
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Operating voltage |
8-30V dc |
2.0V dc +/- 0.1V (Typical) |
10-30V dc |
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Power requirements |
24mA maximum |
300mA (Typical) |
50mA at 24V dc 1.2W |
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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) |
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Approvals |
ATEX: II 1 G |
ATEX: II 2GD |
ATEX: II 2 GD |
ATEX: II 2 GDExd IIC T3 Gb (Tamb -40 to +150°C) |
ATEX: II 2 GDExd IIC T6 Gb (Tamb -40 to +50°C) |
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EMC compliance |
EN 50270 Â Â Â FCC Part 15Â Â ICES- 003 |