Crowcon TXgard-IS+ gas detector, Explosion-proof fixed detector

Đầu dò khí phòng nổ, lắp cố định Crowcon TXgard-IS+
Đầu dò khí phòng nổ, lắp cố định Crowcon TXgard-IS+

The TXgard-IS+ gas detector is an Intrinsically Safe (I.S.) series of explosion-level gas probes that detect toxic gas and oxygen concentrations, which have an LCD display in place. This Explosion proof gas detector type of newspaper can optionally select a variety of in-mounted sensors suitable for a variety of applications. TXgard-IS+ is certified by ATEX to be suitable for Zone 0, 1 or 2 for explosion rooms, and UL and cUL are certified in accordance with Division 1 or 2.


Easy calibration, no machine opening required

  • Calibration can be done on site easily, without the need for complex training
  • On-site monitors and push buttons for simple calibration, no device mounting required

Variety of signals out:

  • Analog 4~20mA series power signal
  • It is possible to emast the signal out to check the device.

Sustainability and stability

  • Grp plastic shell structure is fireproof, neat, stable
  • IP65 Waterproof Supply
  • Accurate, stable electrolysizing sensor


Size160 x 123 x 92mm / (6.3 x 4.8 x 4.5ins)
Weight0.7kg (1.5lbs)
Ingress protectionIP65
Enclosure materialJunction box: Carbon loaded nylon / Sensor housing: ABD Plastic
Power8-32Vdc, 4-20mA loop-powered
Cable entries1 x M20 or 1/2″ NPT with adaptor
Operating temperature-20°C to +55°C (-4°F to 132°F) *
Humidity15 to 90% RH non-condensing
Display2-Line, 16 character LCD
Calibration methodVia push-buttons
Electrical output2 wire 4-20mA
TerminalsSuitable for up to 2.5mm2 cable
Sensor typeElectrochemical
Repeatability+/- 2% FSD typically
Zero drift+/- 2% FSD, 6 months typically
Response timeContact Crowcon for a full list of sensor response times
PerformanceTested in accordance with EN60079-29-1
Hazardous area zonesZone 0, 1 or 2 / Division 1 or 2 / when connected via an isolation device)
ApprovalsEx II 1 G / Exia IIC T4 Ga / UL Class I, groups A, B, C and D
EMC complianceEN 50270, FCC, ICES-003


GasRange 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

Crowcon TXgard-IS gas forecast can optionally detect gases

  • Ammonia Gas Forecast (NH3)
  • Chlorine Gas Forecast (Cl2)
  • Carbon monoxide (CO) detector
  • Chlorine dioxide Gas Forecast (ClO2)
  • Hydrogen Gas Forecast (H2)
  • Hydrogen cyanide Gas Forecast (HCN)
  • Hydrogen sulphide gas forecast (H2S)
  • Hydrogen fluoride Gas Forecast (HF)
  • Nitrogen dioxide Gas Forecast (NO2)
  • Oxygen Gas Forecast (O2)
  • Ozone Gas Detector (O3)
  • Phosgene Gas Forecast (COCl2)
  • Phosphine Gas Forecast (PH3)
  • Sulphur dioxide Gas Forecast (SO2)

Actual image of TXGARD-IS+:

Leave a comment