Fully-Automatic Ultrasonic Water Meter Test Bench is designed for characterization and calibration of ultrasonic water flow measuring instruments based on piston flow reference device with significantly improfed development testing precision, mass production (MP) efficiency and metrological verification standard. With different specifications of the hydraulic cylinder, allowing the test bench operate wide flow ranges, high flow accuracy and better small flow performance. The equipment is capable of heating and cooling, the function of temperature control satisfies various application according to different timestamp.
“Characterization modeling”, “MP calibration” and “metrological verification”, three operation modes meet various application including R&D and mass production of DN15, DN20, DN25, DN32 and DN40 ultrasonic water meters.
◎ Support for R&D and mass production of DN15, DN20, DN25, DN32 and DN40.
◎ High precision grinding hydraulic cylinder, good linear segmented volume.
◎ Four kinds of automatic continuously testing operation modes all including：
Automatic switching flow and temperature point
Automatic data acquisition of flow, temperature and ultrasonic time difference
Automatic generation and release of calibration coefficients
Automatic generation of verification error data
◎ Temperature control, heating and cooling.
◎ Closed-loop, recycling, better water feedback, energy and water saving.
◎ Support to access internet, for remote upgrade and information system assessment.
◎ Support for pressure loss test.
◎ Maintenance free, regularly filling up water and filter cleaning only.
◎ Equipment use mixed design of industrial aluminum and 304 stainless steel, long lifetime.
◎ Number of DUT: 12 with DN15, 10 with DN20, 8 with DN25, 6 with DN32 and DN40
◎ Flow range: 0.001m3/h – 20m³/h
◎ Uncertainty: 0.2% (K=2)
◎ Temperature range: 2 ℃ ~ 55 ℃
◎ Characterization speed: 20 hours @ 10 temp and 20 flow points
◎ MP calibration speed: 800 meters within 8 hours @ DN15
◎ Metrological verification speed: 2 mins @ 3 flow points
◎ Meter reading interfaces: Infrared, RS485
◎ Working water pressure: up to 1.6 MPa
◎ Dimension: 5350*2050*2880 (mm)
◎ Weight: 3.6t max (with water inside)
◎ Working power: 16 kW @ characterization system, 10 kW @ MP system