Automatic Ultrasonic Water Meter Test Bench Water Meter Testing Equipment
Test range
DN15 water meter 5 pcs;
DN20 water meter 5 pcs;
DN25 water meter 5 pcs ;
DN32 water meter 1 piece;
DN40 water meter 1 piece;
DN50 water meter 1 piece.
2. Type: Automatic;
3. Accuracy 0.2%
4. Material: 304 stainless steel
Basic Information
Device flow range: (20-6300)L/h;
Uncertainty of the device: ≤0.2% (k=2)
Pressure range: 0- 2.5MPa;
Ambient temperature: 15-30℃;
Relative humidity: (45% -75%);
Overview
Liquid flow standard devices are widely used in liquid flow meter experimental and verification devices, particularly for flow meter manufacturers, where a large number of meter verification and product development experiments are conducted, and a set of efficient and reliable liquid flow standard devices are produced for them. Activities are extremely important. The flow standard device in industrial applications must not only be accurate and reliable but also have a relatively high verification efficiency. Factors such as the device's construction cost, operating costs, and operator technical requirements must all be considered. Traditional liquid flow standard devices rely heavily on mass and volume methods.
Device composition
Piston composition The active piston liquid flow standard device is mainly composed of a frame, a piston rod, a piston cylinder, a motor, a ball screw, a supporting optical axis, a sensor, a protective shell, etc.
The piston rod is in close contact with the piston cylinder through the Y-shaped seal ring, and the three together form a sealed cavity. The movement of the piston rod is realized by the servo motor, coupling, ball screw, supporting optical axis, etc., the piston rod and the ball screw The rod is connected by a screw nut, and the direction of movement is controlled by a servo motor and a ball screw. A suction pneumatic valve and a drainage pneumatic valve are installed at the outlet of the piston cylinder. The suction pneumatic valve is connected to the water tank, and the drainage pneumatic valve is connected to the meter pipeline. Install high-precision temperature and pressure sensors.
Control system hardware characteristics The control system is mainly composed of an industrial computer, PLC control system, servo motor, grating ruler, various temperature and pressure sensors, pneumatic ball valve, platform software, etc. The industrial computer has strong anti-interference performance, which can make the verification process more stable and reliable; PLC and servo motors adopt internationally renowned brands with high precision and high reliability, and the control and data processing software are written in accordance with the relevant national verification regulations.
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