Following standards:

GB/T 5832.1-2016 "Gas analysis - Determination of trace moisture - Part 1: Electrolytic method"

GB/T 5832.2-2016 "Gas analysis - Determination of trace moisture - Part 2: Dew point method"

GB/T 17283-2014 "Measurement of dew point of natural gas using a fixed cooling mirror condensation hygrometer method"

GB/T 13277.3-2015 "Compressed Air Part 3: Methods for Measuring Humidity"

Technical Specifications:

Measurement principle: optional mirror surface, thin film capacitor, electrolysis method, laser

Measurement range: -80~+20 ℃ (other ranges can be customized)

Accuracy: ≤± 2 ℃

Repeatability: ≤± 1.5 ℃

Preheating time: ≤ 3 minutes

Response time: T90 ≤ 15 seconds

Sample gas flow rate: 1500-2500mL/min

Sample gas pressure: 0.05 MPa ≤ inlet pressure ≤ 0.1 MPa (outlet must be at atmospheric pressure)

Working environment: -25 ℃ to+55 ℃; Humidity ≤ 90% RH (no condensation)

Power supply: 220VAC ± 10%, 50Hz ± 5% (charging power supply); The instrument comes with a rechargeable battery (working power supply)

Dimensions: 260mm (width) x 160mm (height) x 300mm (depth)

Weight: Approximately 3kg

The portable intelligent dew point meter uses hydrophilic or hydrophobic materials as the medium to form capacitors or resistors. After the gas containing water flows through, the dielectric constant or conductivity changes accordingly. By measuring the capacitance or resistance value at that time, the water content of the gas at that time can be determined. This type of sensor, designed based on the dew point unit system, constitutes a thin-film capacitive dew point analyzer. Currently, the highest international accuracy reaches ± 1.0 ℃ (dew point temperature), and the general accuracy can reach within ± 3 ℃.