TXgard IS+ is an Intrinsically Safe (I.S.) toxic and oxygen gas detector with local LCD display. 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, with a wide choice of sensors available for use in a variety of applications.
This Intrinsically Safe (I.S) gas detector is designed to operate safely in environments where flammable gases, vapours, or combustible dust may be present, making it the perfect choice for hazardous environments.
With an extensive range of electrochemical sensors for oxygen and toxic gas detection, the Txgard IS+ provides multi-gas detection with an uncompromising approach to safety. Rugged and reliable, the Txgard IS+ is made from tough carbon loaded nylon, with ingress protection to IP65 as standard.
Calibration can be performed locally without the need for hot work permits, as local display and buttons enable calibration without opening the junction box, minimising operational down-time.
With flexible output options, simple parts replacement and long-life sensors designed to keep interruption to on-site activity to a minimum, the Txgard IS+ offers comprehensive gas detection with low ownership costs.
- Intrinsically Safe detector
- Wide range of electrochemical sensors
- Rugged and reliable
- Non-intrusive calibration
- Flexible output options
Non-Intrusive Calibration
- Calibration can be performed locally without the need for hot work permits, minimising operational down-time
- Local display and buttons enable calibration without opening the junction box
- No opening of the detector is required for calibration, meaning there is no need to declassify the area for calibration
Flexible Output Options
- 4-20mA current sink works with a wide selection of control panels
- 2-wire format
Reliable Detection Across a Wide Range of Gases
- Extensive range of electrochemical sensors for oxygen and toxic gas detection
- Intrinsically Safe (I.S.) detector, ATEX certified for use in Zone 0,1 or 2 hazardous areas & UL and cUL certified for Division 1 or 2 hazardous areas
- Made from tough carbon loaded nylon
- Ingress protection to IP65 as standard
Low Cost of Ownership
- Non-intrusive one-man calibration makes the device easy to operate and maintain
- Long life sensors help keep interruption to on-site activity to a minimum
- Simple parts replacement reduces lifetime cost
| 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 |
| 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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