Description Overview GAOTek HF gas detector is ideal instrument when it is necessary to test water content, purity and decomposition products of SF6 gas. The core component of dew point test is DRYCAP series sensors produced by Finland Vaisala company. With professional hardware chips and excellent software algorithms of STMicroelectronics, a new generation of gas moisture test instrument. Features Fully imported high-precision sensor Self-checking function Ensures the moisture data is accurate Purity and decomposition product detection data is accurate Full-channel polymer material design Provides both standard dew point values Provides converted dew point values at 20 °C Purity measurement 5 % measurement accuracy of full scale Used for high concentration SF6 gas measurement 70 % SF6 gas measurement The best test flow area display The user adjusts gas flow intuitively and quickly Reduce test time Air inlet designed with miniature self-sealing joint Tested air path will not leak Technical Specifications: Accuracy And Repeatability – 0.5 %, nothing to do with the flow Gas Flow SF6 adjustment in 0.5 L/min to 0.9 L/min Dew Point Accuracy – 0.5 degree (when the dew point temperature is below 0 degree, the sensor output for the frost point). Measurement Method Resistive and Capacitive measurement principle Measurement Method Infrared measurement principle (European sensor company NDIR series sensor) Measuring Range 0 % to 100 % SF6 Response Time [90 %] 60 s Measurement Error ± 0.5 % FS Repeatability Error ± 0.5 % Resolution 0.01 % Display Unit % Measuring Method Principle of electrochemical measurement (Swiss Mombas wave electrochemical series sensor) Measurement Range SO2: 0 PPmv to 200 PPmv H2S: 0 PPmv to 200 PPmv CO : 0 PPmv to 500 PPmv HF : 0 PPmv to 50 PPmv Resolution 0.01 PPmv Display Unit PPmv Power Supply 220 V AC ± 10 %, 50 Hz, AC or DC use, over-charge protection, continuous working is no lower than 8 hours. Environment Humidity 90 % RH Gas Flow 400 mL per min to 600 mL per min Flow Rate Display 0 mL to 1000 mL imported digital flowmeter Measurement Value Influence No effect of pressure and flow Sample Gas Pressure ≤ 145.04 (1 mPa) Accuracy ± 33.8 °F (1 °C) Response Time 63 % [90 %] 20→ -4 °F (-20 °C Td 5 s [45 s] -20→ -76 °F (-60 °C) Td 10 s [240 s] Repeatability ± 32.9 °F (0.5 °C) Display unit °C, ppm, °CP 20( converted value at 68 °F (20 °C)) Measurement Range Dew point 112 °F to 68 °F (-80 °C to 20 °C) (support ppmv)(when the dew point temperature is below 32 °F (0 °C), the sensor output is the frost point) Resolution 32.02 °F (0.01 °C) Measuring Range Dew point -100 °F to 86 °F (-73.33 °C to 30 °C) (support ppmv, etc. ). Ambient Temperature -4 °F to 140 °F (-20 ℃ to 60 ℃) Dimension 15.55 in x 11.61 in x 6.10 in (395 m x 295 mm x 155 mm) Weight About 4.41 lbs (2 kg)
