Description
Overview
GAOTek industrial fixed online hf gas leak detector with LED display transforms the gas density in the operating site into standard electric current signal(4 mA to 20 mA). GAOTek Industrial Fixed online HF Gas Leak Detector has excellent performance, stable operation, and easy maintenance. Since the detector also can detect various gasses, it meets various requirements in the operation site; it has been widely used in petrol, chemistry, metallurgy, artifice, gas transportation, biological medicine and water procession etc.
Features
- Standard 4 mA to 20 mA electric current output
- Compatible with existing alarm control units or DSC (distributed control system).
- LED site display
- Standard three buttons: so an individual can operate the detector on site
- Automatically identify and display the sensor failures
- Output the corresponding current signal at the same time
- The key operation needs to input a password to prevent wrong operation
- Simple calibration function; reducing measuring error
- Two levels’ light alarm, relay output (connected with audible and visual alarm outside or start the exhaust system)
Technical Specifications
| Detecting Gas | HF Hydrogen fluoride |
| Measuring Range | 0 ppm to 10 ppm |
| Working Voltage | 24 V DC ±15 % |
| Signal Output | 4 mA to 20 mA linear current output; Or RS485 signal output (optional) |
| Deviation | ≤ ± 3 % F.S |
| Response Time | T90 < 30 s |
| Recovering Time | ≤ 30 s |
| Display Model | LED display |
| Working Humidity | 10 % RH to 95 % RH (no condensation) |
| Explosion-Proof Level | Exd IICT6 (used for explosion proofing detector); ExiaIICT4 (used for intrinsic safety type detector) |
| Protection Class | IP66 |
| Transition Cable | Three core shield cable RVVP 3 × 1.5 mm2; 4 × 1.5 mm2 |
| Transmission Distance | ≤ 1000 m |
| Working Temperature | Toxic gas:14 °F to 122 °F (-20 ℃ to +50 ℃) Combustible gas:  -40 °F to 158 °F (-40 ℃ to + 70 ℃) |
| Weight | About 3.31 lb (1.5 kg) |