. Large diameter high flow sensor accuracy calibration of large-diameter sensor. Due to the verification device restrictions. Only a small flow (low flow rate) calibration, high flow (high flow) can not be calibrated so that a large flow only to discover problems in actual use, due to limitations in Yunnan steam flow meter technology, production processes and testing means of direct sales, some manufacturers of sensors 35m / s to throw missing pulses, flow rate (velocity) is, the more lost missing pulses. This occurs Yunnan steam flow quote error of up to three hundred tons a day Yunnan steam flow meter, the monthly cumulative loss of hundreds of tons to thousands of tons of steam. First, the vortex flowmeter amplifier works vortex flowmeter amplifier is the actual user in the field can use only part of debugging. The role of the amplifier is the vortex signal generated by the fluid flow in the pipe Yunnan steam flow meter, amplified by the circuit, after shaping filter output square wave signal. When the fluid in the tube through vortex flow sensors, piezoelectric crystal element produces an alternating electrical charge through the charge amplifier converts the charge amount proportional to the alternating voltage signal, and then sent to the voltage amplifier, the voltage amplifier has a test point TP1, voltage amplification can be adjusted by potentiometer W1. Low-pass filter to eliminate high frequency noise signals, so that the vortex frequency signal by the sensor measurement range, the filter output is a test point TP2. Schmitt trigger sine wave signal into a square wave signal, the output amplifier, the test after the trigger point for TP3. Yunnan steam flow meter price _ _ Sisson · China Yunnan steam flow provided by the Guangzhou Sisson automation control equipment Limited. Guangzhou Sisson Automation Equipment Co. (www.sisenauto.com) is Guangzhou, flow meters leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Guangzhou Sisson automation leadership with the staff warmly welcome all inquiries negotiations to create Guangzhou Sisson automation better future.