TIP-AL-AA-002-Z TXgard IS+ nitrogen dioxide, 0-10ppm top cable entry with UL approval by Crowcon
TXgard-IS+ is a Intrinsically Safe (I.S.) toxic and oxygen gas detector with local LCD display. A wide choice of sensors are available for use in a variety of applications.
Features:
Non-intrusive calibration
- Calibration can be performed locally without the need for hot work permits
- Local display and buttons enable calibration without opening the junction box
Flexible output options
- A two-wire 4-20mA signal is provided
- The output can be forced up without applying gas to enable simple checking of control systems and alarms.
Rugged and reliable
- Constructed using highly durable GRP to provide good impact resistance
- Ingress protection to IP65 as standard, IP66 with accessory
- IEC61508 SIL compliant
Size | 160 x 123 x 92mm (6.3 x 4.8 x 4.5ins) |
Weight | 0.7kg (1.5lbs) |
Enclosure material | Junction box: Carbon loaded nylon Sensor housing: ABD Plastic |
Ingress Protection | IP65 |
Cable entries | 1 x M20 or 1/2" NPT with adaptor |
Power | 8-32Vdc, 4-20mA loop-powered |
Operating temperatures | -20°C to +55°C (-4°F to 131°F) * |
Humidity | 15 to 90% RH non-condensing |
Relays (optional) | N/A |
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 |
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 |
Hazardous area zones | Zone 0, 1 or 2 Division 1 or 2 (when connected via an isolation device) |
Approvals | Ex II 1 G Exia IIC T4 Ga UL Class I, groups A, B, C and D |
EMC compliance | EN50270, FCC, ICES-003 |
Gas Type | LTEL (ppm) |
STEL (ppm) |
Range Available |
Ammonia (NH3) | 25 |
35 |
50, 100, 1000ppm |
Carbon monoxide (CO) | 30 |
200 |
250, 500ppm |
Chlorine (CL2) | - |
0.5 |
5, 10, 20ppm |
Chlorine dioxide (CLO2) | 0.1 |
0.3 |
1 ppm |
Hydrogen (H2) | - |
- |
2000ppm, 50% LEL, 100% LEL |
Hydrogen cyanide (HCN) | - |
10 (MEL) |
25ppm |
Hydrogen fluoride (HF) | 1.8 |
3 |
10ppm |
Hydrogen sulphide (H2S) | 5 |
10 |
25, 50, 100, 200ppm |
Nitrogen dioxide (NO2) | 1 |
1 |
10ppm |
Ozone (O3) | - |
0.2 |
1ppm |
Oxygen (O2) | - |
- |
25% vol. |
Phosgene (COCl2) | 0.02 |
0.06 |
1ppm |
Phosphine (PH3) | 0.1 |
0.2 |
2ppm |
Sulphur Dioxide (SO2) | 1 |
1 |
10, 20, 30ppm |