Introduction
TDLAS-based HF measurement from ppb to % for industrial emissions and process monitoring.
HF Range: ppb → ppm → %
Technology: TDLAS
Configurations: Online Gas Analyzer | Wall-mounted Gas Monitoring System | Online Gas Monitoring System
| Parameter | Value |
|---|---|
| Measured Gas | Hydrogen Fluoride (HF) |
| Measurement Principle | Tunable Diode Laser Absorption Spectroscopy (TDLAS) |
| Measuring Range | 0-10/100pm |
| Accuracy | ≤±1% FS |
| Repeatability | ≤±1% FS |
| Resolution | 0.1ppm |
| Drift | ≤1% FS/ semi-annual |
| T90 Response Time | ≤30S |
| Measurement interval | 1s |
| Power Supply | 220V ±40VAC, 50Hz ±1Hz, ≤150W. |
| Analog Output | 4-20mA, maximum load 550Ω |
| Digital Output | RS485, supporting the MODBUS RTU protocol |
| Relay Output | Load capacity: AC/DC 24V/1A |
| Warm-Up Time | 30min |
| Maximum Sample Gas Humidity | 90%RH |
| Sample Gas Flow Rate | 2L/min |
| Sample Gas Pressure | Atmospheric pressure ±5 kPa |
| Sample Gas Temperature | ≤50 °C |
| Sample Gas Interface | Ø6 mm card holder |
| Dimensions (W × L × H) | 430mm × 410mm × 170mm |
| Weight | 15kg |
| Note | Measurement range can be customized by the requirement |
ESEGAS Can Offer
☑ ESE-LASER-HF-300WM Online HF gas monitoring system
☑ ESE-LASER-HF-300P Portable TDL HF analyzer
☑ ESE-LASER-HF-300 online TDL HF analyzer
☑ ESE-LASER-HF-700 Trace TDL HF analyzer (ppb range)
Why HF Measurement Requires Specialized Sampling?
The ESEGAS ESE-LASER Series Hydrogen Fluoride (HF) Analyzer uses Tunable Diode Laser Absorption Spectroscopy (TDLAS) to continuously measure HF concentrations in industrial process gases and emission streams. TDLAS measures hydrogen fluoride through the selective absorption of laser light at a specific HF absorption wavelength. Because the laser targets a characteristic HF absorption line, the analyzer provides high selectivity and minimizes interference from background gases. This direct optical measurement principle enables accurate HF measurement from trace ppb levels to ppm or higher concentrations, depending on the configured model and measurement range.
| Parameter | Value |
|---|---|
| Measured Gas | Hydrogen Fluoride (HF) |
| Measurement Principle | Tunable Diode Laser Absorption Spectroscopy (TDLAS) |
| Measuring Range | 0-10/100pm |
| Accuracy | ≤±1% FS |
| Repeatability | ≤±1% FS |
| Resolution | 0.1ppm |
| Drift | ≤1% FS/ semi-annual |
| T90 Response Time | ≤30S |
| Measurement interval | 1s |
| Power Supply | 220V ±40VAC, 50Hz ±1Hz, ≤150W. |
| Analog Output | 4-20mA, maximum load 550Ω |
| Digital Output | RS485, supporting the MODBUS RTU protocol |
| Relay Output | Load capacity: AC/DC 24V/1A |
| Warm-Up Time | 30min |
| Maximum Sample Gas Humidity | 90%RH |
| Sample Gas Flow Rate | 2L/min |
| Sample Gas Pressure | Atmospheric pressure ±5 kPa |
| Sample Gas Temperature | ≤50 °C |
| Sample Gas Interface | Ø6 mm card holder |
| Dimensions (W × L × H) | 430mm × 410mm × 170mm |
| Weight | 15kg |
| Note | Measurement range can be customized by the requirement |




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