Wuhan factory North Branch Power Electric Co. BKQF-2-type SF6 gas decomposition product points ..

I. Overview Wuhan Electric North Branch Electric Co. BKQF-2 type SF6 electrical equipment fault detector provides a simple field test method SF6 decomposition products. Use, connected to a pressurized gas chamber filled with SF6 gas equipment, so that SF6 gas at a constant flow rate of flow through the electrochemical sensors, measuring instruments directly to the main decomposition products of SF6 gas content. The instrument uses the latest four patented technology to ensure a preparatory measure. Anti-crosstalk technology uses a plurality of electrochemical sensors simultaneously measuring a variety of mixed gas target gas, when a sensor for a particular gas showed a cross-interference, will affect the accuracy of detection. This product is built longer than the lifetime of a particular sensor chemical filter, before the interference gas sensing electrode in contact with the electrochemical sensor will be filtered out, thereby reducing interference specific gas. Pump-pressure chamber sample gas removal technology electrochemical gas sensor gas exchange chamber (measuring chamber) commonly used diffusion structure design, the same as the external pressure because the gas chamber, the sample gas from the exhaust gas chamber dependent on ambient air and the sample chamber Natural gas penetration, the sample gas discharge is slow and not completely drained. This affects the accuracy of the next measurement, especially those with the more severe variety of target gas and the case of using a plurality of electrochemical sensors simultaneously measured in the gas mixture. At the same time, the sample gas remaining in the gas chamber is equipped with an electrochemical sensor will shorten the useful life and the next measurement speed and accuracy of electrochemical sensors. The finished product can be employed for each measurement pumping manner outside air is pumped into the internal air passage, is pumped into the air through a filter and dried to import gas chamber, exhaust gas chamber gas chamber to ensure no residual sample gas, the maximum guarantee measurement accuracy, while extending the life of the electrochemical sensor; dynamic temperature-correction technology like temperature and ambient temperature changes affect the properties of electrochemical sensors (baseline range), thus affecting the measurement accuracy. This product is built-in sensor temperature characteristic curve, and real-time access sample gas and ambient temperature via a separate temperature measurement circuit, according to the sensor temperature characteristic curve dynamic calibration measurements to ensure accurate and reliable measurement results. "Temperature Correction" function "on / off" can be manually controlled, when the temperature correction function is "On", the temperature sensor real-time measurement of the current ambient temperature of the test card electrochemical sensor for temperature-correction; different types of carrier gas error correction technique using instrument calibration and test equipment insulation gas different carrier gas (background gas) will bring measurement error. Alternatively contained use of this product gas type, error correction due to different carrier gas (mainly air / N2, SF6) brings. Main applications: fault location, routine testing, partial discharge monitoring, gas purification / filtration monitoring, fault checking high pressure contacts, SF6 decomposition product detection, resulting in the inspection switch decomposition products. Second, the functional characteristics? Using anti-cross-interference, accurate, repeatable? With a variety of background gas selection function? With ambient temperature dynamic compensation function? Built imports of electronic mass flow meter can accurately control the gas flow? Multiple measurements, automatic calculating the average, to reduce measurement errors Built-in air purge function, effectively extending the life of the instrument rechargeable battery, AC-DC dual-use graphical user interface, easier to use the alarm function:???? having a gas concentration alarm function, you can manually control alarm switch; Third, technical indicators measuring range: H2S: 0 ~ 150μL / L SO2: 0 ~ 150μL / L HF: 0 ~ 10μL / L (optional) CO: 0 ~ 100μL / L (optional) Accuracy : in 1 μL / L ~ 5 μL / L, ≤1μL / L; in 6 μL / L ~ 20 μL / L, ≤2 μL / L; in 20 μL / L ~ 100 μL / L, ≤5 μL / L. Sensitivity: 0.1 μL / L sample gas flow rate: 0.25 L / min ± 30ml / min Response time: 10 to 15 seconds into the gas pressure: ≤1.0MPa Ambient temperature: -20 ℃ ~ 55 ℃ Humidity: ≤90% RH charging voltage : 220VAC ± 10% 50Hz use time: built-in rechargeable lithium battery, continuous work at least several hours. Storage capacity: can store 100 measurement records; Printer: Built-in thermal printer, fast mute print data; USB interface: can connect with the host computer to transfer the data to a computer to save the deal; Size & Weight: Overall: 335 × 290 × 160, Weight: 5.7㎏ Accuracy: within 1 μL / L ~ 5 μL / L, ≤1μL / L; within 6 μL / L ~ 20 μL / L, ≤2 μL / L; in 20 μL / L ~ within 100 μL / L, ≤5 μL / L. Sensitivity: 0.1 μL / L sample gas flow rate: 0.25 L / min ± 30ml / min Response time: 10 to 15 seconds into the gas pressure: ≤1.0MPa Ambient temperature: -20 ℃ ~ 55 ℃ Humidity: ≤90% RH charging voltage : 220VAC ± 10% 50Hz use time: built-in rechargeable lithium battery, continuous work at least several hours. Storage capacity: can store 100 measurement records; Printer: Built-in thermal printer, fast mute print data; USB interface: can connect with the host computer to transfer the data to a computer to save the deal; Size & Weight: Overall: 335 × 290 × 160, Weight: 5.7㎏