Description
Overview
GAOTek HF with LED display transforms the gas density in the operating site into standard electric current signal (4 mA to 20 mA). It has excellent performance, stable operation, easy maintenance. Since detector also can detect various gas, 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 4-20mA output, compatible with existing control systems
- LED site display for real-time monitoring
- User-friendly with standard three operational buttons on-site
- Automatic sensor failure identification and corresponding current signal output
- Password-protected key operations to prevent errors
- Simple calibration function
- Two levels light alarm, relay output
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 |
| Respond Time | T90 < 30 s |
| Recovering time | ≤ 30 s |
| Display Model | LED display |
| Working Humidity | 10% RH to 95% R.H. (no condensation) |
| Explosion-Proof Level | Exd II CT6 (used for explosion proofing detector)Exia II CT4 (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: -4 °F to 122 °F (-20 °C to 50 °C)Combustible gas: -40 °F to 158 °F (-40 °C to 70 °C) |
| Weight | 3.3 lb (1.5 kg) |