General specifications |
Detected gas | Hydrogen sulfide (H2S) |
Response time | < 3 seconds (T90 < 10 seconds) |
Immunity to false alarms | Not influenced by solar radiation, hydrocarbon flames, and other external infrared radiation sources |
Sensitivity range | 0-500 ppm.m |
Displacement/misalignment tolerance | ±1 degree |
Drift | Long term ± five percent of full scale |
Temperature range | -67 to +149 °F (-55 to +65 °C) |
Humidity | Up to 95 percent non-condensing (withstands up to 100 percent relative humidity for short periods) |
Heated optics | To eliminate condensation and icing on the window |
Warranty | Safety system: three years |
Electrical specifications |
Power supply | 24 Vdc nominal (18-32 Vdc) |
Power consumption (peak includes heated optics) | Detector: 250 mA (300 mA peak) Source: 250 mA (300 mA peak) |
Warm-up time | 60 seconds for transmitter and receiver |
Electrical connection (specify) | Two ¾-in. - 14 national pipe thread (NPT) conduits or 2 x M25 x 1.5 mm ISO |
Electrical input protection | According to MIL-STD-1275B |
Electromagnetic compatibility | Electromagnetic interference/radio frequency interference (EMI/RFI) protected to EN50270 |
Outputs - interfaces |
0-20 mA current output | Sink (source option) configuration: maximum load of 500 ohm at 18-32 Vdc
Gas reading: 0-20 mA
Normal, zero reading: 4 mA
Maintenance call: 3 mA
Misalignment: 2.5 mA
Obscuration/beam block: 2 mA
Zero calibration mode: 1 mA
Fault: 0 mA |
RS-485 interface - Modbus ® compatible | RS-485 Modbus compatible communication link that can be used in computer controlled installations |
HART ® protocol | Optional HART communications on the 0-20 mA analog current (FSK) - used for maintenance and asset management |
Visual status indicator | Three color light emitting diode (LED)
Green: power on
Yellow: fault
Red: alarm |
Outputs - interfaces |
Enclosure | The source and detector housings are stainless steel 316L with electro polish finish. The circuit boards
are conformal coated and protected from mechanical vibrations. The tilt mount is also stainless steel
316L. |
Dimensions | Detector/source: 10.5 x 5.1 x 5.1 in. (267 x 130 x 130 mm) Tilt mount: 4.7 x 4.7 x 5.5 in. (120 x 120 x 158 mm) |
Weight | Detector/source: 11 lb. (5 kg)
Tilt mount: 4.2 lb. (2 kg) |
Water and dust tight | IP66 and IP68 per EN60529, NEMA 250 6P |
Environmental standards | Meets MIL-STD-810C for humidity, salt and fog, vibration, mechanical shock, high temperature, and
low temperature |
Reliability | SIL2 per IEC61508 (TUV) |