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Crowcon

Crowcon TXgard-IS+ Intrinsically Safe (I.S.) gas detector

£764.00 (£764.00 ex. VAT)
£764.00 (£916.80 inc VAT)

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TXgard-IS+

TXgard-IS+ is a Intrinsically Safe (I.S.) toxic and oxygen gas detector with local LCD display. A very wide choice of sensors are available for use in a variety of applications. TXgard-IS+ is ATEX certified for use in Zone 0,1 or 2 hazardous areas and also UL and cUL certified for use in Division 1 or 2 hazardous areas.

Non-intrusive calibration

  • Calibration can be performed locally without the need for hot work permits – minimises operational down-time
  • Local display and buttons enable calibration without opening the junction box

Flexible output options

  • 4-20mA current sink – works with a wide selection of control panels
  • 2 wire format

Rugged and reliable

  • Made from tough carbon loaded nylon
  • Ingress protection to IP65 as standard

Low cost of ownership

  • Non-intrusive one man calibration – easy to operate and maintain
  • Long life sensors – keeps interuption to on-site activity to a minimum
  • Simple parts replacement

Wide range of sensors

  • Extensive range of electrochemical sensors for toxic gases and oxygen

Specifications

Size 160 x 123 x 92mm
(6.3 x 4.8 x 4.5ins)
Weight 0.7kg (1.5lbs)
Ingress protection IP65
Enclosure material Junction box: Carbon loaded nylon
Sensor housing: ABD Plastic
Power 8-32Vdc, 4-20mA loop-powered
Cable entries 1 x M20 or 1/2” NPT with adaptor
Operating temperature -20°C to +55°C (-4°F to 132°F) *
Humidity 15 to 90% RH non-condensing
Display 2-Line, 16 character LCD
Calibration method Via push-buttons
Electrical output 2 wire 4-20mA sink
Terminals Suitable for up to 2.5mm2 cable
Sensor type Electrochemical
Repeatability +/- 2% FSD typically
Zero drift +/- 2% FSD, 6 months typically
Response time Contact Crowcon for a full list of sensor response times
Performance Tested in accordance with EN60079-29-1
Hazardous area zones Zone 0, 1 or 2
Division 1 or 2
(when connected via an isolation device)
Approvals Ex II 1 G Ex ia IIC T4 (-40°C to +65°C)
Exia IIC T4 Gb Tamb -20°C to +55°C
UL Class I, groups A, B, C and D
EMC compliance EN 50270, FCC: CFR 47 Part 15, ICES-003

* Figures shown exclude the sensors – Please contact us for a full list of sensor operating temperatures

 

Gases and Ranges

Gas Range Available
Ammonia (NH3) 50, 100, 1000ppm
Chlorine (Cl2) 5, 10, 20ppm
Carbon monoxide (CO) 250, 500ppm
Chlorine dioxide (ClO2) 1ppm
Hydrogen (H2) 2000ppm, 50% LEL, 100% LEL
Hydrogen cyanide (HCN) 25ppm
Hydrogen sulphide (H2S) 25, 50, 100, 200ppm
Hydrogen fluoride (HF) 10ppm
Nitrogen dioxide (NO2) 10ppm
Oxygen (O2) 25% vol.
Ozone (O3) 1ppm
Phosgene (COCl2) 1ppm
Phosphine (PH3) 2ppm
Sulphur dioxide (SO2) 10, 20, 30ppm

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