With a precision grade and functional market performance general-emf big difference, some high precision, multi-function, low some precision, simple function. High precision instrument fundamental error (± 0.5% ~ ± 1%) r, precision instrument was low (± 1.5% ~ ± 2.5%) fs, the price difference between 1 to 2 times. Therefore, measurement accuracy is not very high places (such as non-trade accounts only for the purpose of control, only requires high reliability and excellent repeatability place) high precision instrument is economically uneconomical. Some models Meter claimed to have higher accuracy, only basic error (± 0.2% ~ ± 0.3%) r, but there are strict installation requirements and reference conditions, such as ambient temperature 20 ~ 22 ℃, front and rear straight pipe length requirements were more than 10d, 3d (usually 5d, 2d) even suggested the flow sensor to the front and rear straight tubes, one for actual flow calibration on the flow standard devices to reduce the impact of poor clamp. ① excitation cable can be used YZ rubber insulated cables, turbine flow meter price, the same as the length of the signal cable ② Signal cables and other power supply cables must be strictly separated, turbine flow meters, the same can not be laid in a tube, can not be laid in parallel not twisted together, should wear separately in the pipe. ③ signal cable and excitation cable as short as possible, specializing in the production of turbine flowmeter, excess cable can not be rolled together, excess cable should be cut and re-welded joint factory outlets turbine flow meters, electrical interface cable into the sensor, made a U-shaped at the ports, which can prevent rainwater infiltration into the sensor. ④ sub connector body electromagnetic flowmeter excitation between cable and converter with special wiring is complete, converters and external connections to the same body electromagnetic flowmeter. Force measurement since the instrument (Figure) | liquid turbine meter | turbine flow meter measuring the force provided by the Shanghai Automation Instrumentation Co., Ltd. Shanghai Automation Instrumentation Co., force measurement (www.licesh.com) located in Zhabei District Luochuan Road 638. Scraps and development in the wave of market economy, the current force measurement since the instrument has a high profile in the flow meter, and enjoys a good reputation. Force measurement instrument made from the entire network business alliance certification, marking our service and management level has reached a new height. Force measurement instrument from the staff willing to work with all people of insight and common development, for a better future.