LJS – 1780 Water Flow Standard Device

Short Description:

Water Flow Standard Divice is a standard metrological device for traceability, transmission, and testing of measurement values for water flow equipment. This apparatus uses high-precision electronic scales and standard flow meters as reference instruments, with clean water as the medium, to calibrate and verify various flow meters. It is applicable for intelligent flow measurement in experimental research, metrological supervision institutions, and flow meter manufacturing sectors.

The device is composed of a metrological standard system (standard instrument), a circulating water storage and pressure stabilizing system, a verification and testing system (verification pipeline), process pipelines, measuring instruments, a flow regulation system, a computer automatic control system (including data acquisition, operation and management system), a power and air source system, standard parts and pipe sections, etc.

Send email to us

Product Detail

Product Tags

Verification method: Static mass method + standard meter method.
Device accuracy:
Static mass method: 0.05% (k=2); The verification graduation value of the electronic scale is 1/6000.
Standard meter method: 0.3% (k = 2); The accuracy class of the standard flowmeter is 0.2 grade.
Flow stability: ≤0.2%.
Flow range: (0.5-1780) m³/h
The flow velocity range of the device is: (0.5-7)m/s
Verification specification: DN6、DN8、DN10、DN15、DN20、DN25、DN32、DN40、DN50、DN65、DN80、DN100、DN125、DN150、DN200、DN250、DN300 17 types of diameter specifications in total.
Verification stand: Verification pipeline adopts flat the same verification, four flat test line, respectively, 12 (DN250), DN200 (6 / DN125), DN100 (DN80DN65), ((DN40 / DN32 / DN25/3/4 "/ DN15 / DN10 / DN8 / DN6), The diameter within the parentheses is achieved by pipe replacement.
Signal of the inspected meter: pulse signal, current 4-20mA signal.
System power supply: (DC5V, DC12V, DC24V) /2A, AC220V/10A.
Types of inspected meters: turbine flowmeter, vortex flowmeter, ultrasonic flowmeter, electromagnetic flowmeter, differential pressure flowmeter, liquid volumetric flowmeter, Coriolis mass flowmeter.
The time difference of the commutator's forward and reverse strokes: < 20ms.
Control mode: During the verification process, the control mode of the device is automatic verification. Except for the inspected form which requires manual clamping, the rest of the verification can be automatically completed on the computer (only requiring the input of relevant information and parameters of the inspected form), or it can be completed manually.
The total power distribution of the device: 365kW (three-phase five-wire system).
Verification medium: Clean water.
The materials of pipelines, flanges, weighing containers, filters, etc. are all made of 304 stainless steel. The valve adopts 304 stainless steel valve core.
Site dimensions : provided by the user