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. The TXgard-IS+ toxic gas detectors are 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.

Compare

Category: Fixed Gas Detectors Tags: Ammonia, Carbon Monoxide, Chlorine, Chlorine Dioxide, Nitrogen Dioxide, Other Combustible or Toxic Gasses, Ozone, Sulphur Dioxide, Tag: Hydrogen Sulphide, Tag: Oxygen

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 oxygen and toxic gas detection

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 Crowcon 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

Accessories

Below is a small selection of the accessories available for the TXgard-IS+.

Spray deflector

C01338

For outdoor installations and protection from water sprays, for example in water treatment or food processing plants. Includes accessory adaptor. (not suitable for use with Xgard Type 4)