Water Meter Test Bench Flow in Flow Water Meters for Cold Woltman Water Meter
I. Overview
Liquid flow standard device is widely used in the experiment and verification device of liquid flow instruments, especially for the flowmeter manufacturers, there are a large number of instrument verification work and product development experimental work. A set of efficient and reliable liquid flow standard devices is of great significance to its production activities. In industrial applications, flow standard devices should not only have sufficient accuracy and reliability but also have a relatively high verification efficiency. Consider the construction cost of the equipment, operation cost, technical requirements of operators, and other factors.
II. Technical indicators
Device Uncertainty: ≤0.2% (k=2) Flow stability ≤ 0.2%;
Operating pressure of the device: 0-1 MPa;
Operating temperature of the device: 5-85℃;
Test number: Ultrasonic or ordinary water meter DN15:10 Psc; DN20:10Ps; DN25: 8Pcs, other type meters' test number according to the pipe length;
Communication interface: M-BUS, RS485;Control system: Siemens PLC、industrial control touch screen;
The verification process is automated, with visual interface control, automatic data saving, report generation, and other functions.
III. Device configuration and type selection table
DYCK25-V30 | DYCK25-V30-1 | DYCK50-V30-2 | |
Main standard | piston | Piston + Electronic scale | Piston + Electronic scale |
Flow Range [m³ / h] | 0.002-6.3 | 0.002-6.3 | 0.002-25 |
Water temperature [℃] | 5-40 | ||
Maximum working pressure[bar] | 16 | ||
worktable rotation | optional | optional | optional |
evacuation | optional | optional | optional |
Length of the examined meter | DN15(165mm) DN20(195mm) DN25(225mm) | DN15(165mm) DN20(195mm) DN25(225mm) | DN15(165mm) DN20(195mm) DN25(225mm) DN32(230mm) DN40(245mm) DN50(280mm) |
Piston specification | Volume 30L / resolution 0.036ml / pressure PN16 / servo drive | ||
Electronic scale | non | Sartorius 150KG / 6000E | Sartorius 150KG / 6000E + Sartorius 600KG / 6000E |
Weighing container | non | 120L | 120L+550L |
Electromagnetic flowmeter | Yokogawa DN2.5+DN25 | Yokogawa DN2.5+DN25 | Yokogawa DN2.5+DN25+DN40 |
commutator | non | non | DN25+DN50 |
Temperature sensor | Temperature transmitter, precision grade A installed at the inlet and outlet | ||
pressure sensor | Pressure transmitter, precision 0.5% installed at inlet and outlet | ||
test method | Start and stop method + double time method | ||
Standard signal collection | Pulse (24VPNP / max5KHZ) + MBUS + RS485 | ||
imaging sensor | optional | optional | optional |
laser sensor | optional | optional | optional |
Equipment power | 2.2KW | 4KW | 10KW |
hydroelectricity | The user provides an AC380V three-phase five-wire power supply / pure water / 6bar air pressure | ||
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