Crowcon TXgard-IS+ Gas Detector
Fixed Gas Detectors
Single Gas & Multi-gas Detectors | Fixed Point Gas Detection & Portable Gas Safety Applications | Industrial Locations & Hazardous Area Zones
Crowcon TXgard-IS+ | ATEX Zone 0, Zone 1 & Zone 2
TXgard-IS+ manufactured by Crowcon, is a fixed gas detector that is ATEX certified for use in Zone 0, Zone 1 or Zone 2 hazardous areas. The Crowcon TXgard-IS+ is intrinsically safe and is UL and cUL certified for gas detection in Division 1 or 2 hazardous areas.
Crowcon TXgard-IS+ has a wide selection of sensors including a number of catalytic beads for a wide selection of flammable gases and vapours as well as electrochemical sensors for toxic gases and oxygen.
The Crowcon TXgard-IS+ gas detector is easy to calibrate, maintenance and operation are simple and the long life sensors keep disruption to site to a minimum.
Crowcon TXgard-IS+ has an ingress protection to IP65 as a standard.
Should you require any further technical support and specification advice about the TXgard-IS+ manufactured by Crowcon please do not hesitate to contact us.
- Robust Construction – Crowcon TXgard-IS+ is constructed from tough carbon loaded nylon and an IP65 rating as standard.
- Flexible Options – The TXgard-IS+ is available in 2 or 3 wire formats with a 40-20mA current sink or source. Relays for alarm and fault are also options.
- Low Ownership Costs – Sensors are long life with simple part replacement making the gas detector easy to operate and maintain.
- Calibration – The TXgard-IS+ can be calibrated with ease and boasts local display and buttons so the junction box doesn’t need to be opened. Non-intrusive one man calibration can be performed locally without the need for hot work permits.
- Range of Sensors – This gas detector can be tailored to meet the user’s needs with a choice of catalytic beads for a wide selection of flammable gases and vapours and an extensive range of electrochemical sensors for toxic gases and oxygen.
Bump Testing And Calibration
Routine bump testing is recommended for the range of Crowcon fixed gas detectors prior to each use. Bump testing is a brief application of a gas to the sensor to invoke a prescribed reaction, ensuring the gas detector reacts as expected.
Bump testing provides a quick, easy and direct method of verifying gas detectors are performing as required and takes a lot less time than ‘zeroing’ the device.
The bump test is widely accepted as a suitable method of testing gas detection equipment.
The Crowcon TXgard-IS+ is available from stock at competitive prices from Thorne & Derrick – should you require technical advise about specifying or purchasing either Fixed or Portable Gas Detection Equipment please do not hesitate to contact us.
|Size||160 x 123 x 92mm (6.3 x 4.8 x 4.5ins)|
|Enclosure material||Junction box: Carbon loaded nylon Sensor housing: ABD Plastic|
|Cable entries||1 x M20 or 1/2” NPT with adaptor|
|Power||8-32Vdc, 4-20mA loop-powered|
|Operating temperatures||-20o C to +55o C (-4o F to 131o 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|
|Terminals||Suitable for up to 2.5mm2 cable|
|Repeatability||+/- 2% FSD typically|
|Zero drift||+/-2% FSD, 6 months typically|
|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 Ga UL Class I, groups A, B, C and D|
|EMC compliance||EN50270, FCC, ICES-003|
Crowcon TXgard-IS+ Fixed Gas Detector | Gases And Ranges Detected
TXgard-IS+ detects an extensive range of toxic, flammable and oxygen gases:
|Gas Type||LTEL (ppm)||STEL (ppm)||Crowcon TXgard-IS+ Range Available|
|NH3 Ammonia||25||35||50, 100, 1000ppm|
|CO Carbon monoxide||30||200||250, 500ppm|
|CL2 Chlorine||–||0.5||5, 10, 20ppm|
|CLO2 Chlorine dioxide||0.1||0.3||1 ppm|
|H2 Hydrogen||–||–||2000ppm, 50% LEL, 100% LEL|
|HCN Hydrogen cyanide||–||10 (MEL)||25ppm|
|HF Hydrogen fluoride||1.8||3||10ppm|
|H2S Hydrogen sulphide||5||10||25, 50, 100, 200ppm|
|NO2 Nitrogen dioxide||1||1||10ppm|
|O2 Oxygen||–||25% vol.|
|SO2 Sulphur Dioxide||1||1||10, 20, 30ppm|
Crowcon TXgard-IS+ Hazardous Area ATEX Certified Gas Detector
Hazardous Area Classification
Ex II 1 G Ex ia IIC T4 Ga
UL Class I, groups A, B, C and D
Crowcon TXgard-IS+ is an ATEX certified gas detector for use in Zone 0,1 or 2 hazardous areas – also UL and cUL certified for use in Division 1 or 2 hazardous areas.
Visit hazardous area gas detectors for explosion and flameproof gas monitoring and detection instruments with certification for potentially explosive atmospheres, including Zone 1 and Zone 2 (according to ATEX and IECEx) and Class/Division categories (according to North American standards).
T&D provide competitive prices and delivery for all Crowcon Gas Detectors, including the Crowcon TXgard-IS+.
➡ Did you know? Crowcon fixed gas detectors protect plant; portable gas detectors protect people.