Instructions for using DN200 spiral vortex flowmeter

Description :

　　This product has the advantages of high measurement accuracy, wide flow range, no movable parts, good anti vibration and anti pulsating flow performance, small size, light weight, and easy use.

　　1、 Technical parameters:

　　Industrial chemical gases: natural gas, nitrogen, argon, special gases;

　　Advantages: Wide range ratio, safe and explosion-proof, precise measurement of small flow gas;

　　Performance: Built in temperature and pressure compensation, data display standard condition flow meter: Nm3/h (unit), operating condition display: m3/h;

　　Power supply: lithium battery power supply, 24VDC, dual power supply. Capable of 4-20mA output and communicating with RS-485 and MODBUS.

　　2、 Technical performance:

　　execution standard

　　The flowmeter shall comply with JJG 198-94 "Verification Regulations for Velocity Flowmeters".

　　Natural cyclone inlet vortex flowmeter flange connection type

　　Environmental conditions for use

　　Environmental temperature: -30 ℃~55 ℃

　　Relative humidity: 5% to 95%

　　Atmospheric pressure: 86KPa~106KPa

　　working conditions

　　Medium temperature range: -20 ℃ to 70 ℃

　　Nominal pressure: 1.6, 2.5, 4.0, 6.3 MPa

　　3、 Installation matters:

　　Sensors can be installed in vertical, horizontal, or any inclined position according to the flow direction indicator;

　　When the pipeline is long or close to the vibration source, supports should be installed upstream and downstream of the flowmeter to eliminate the impact of pipeline vibration;

　　The installation location of the sensor should have sufficient space for the inspection and maintenance of the flowmeter, and should meet the environmental requirements of the flowmeter;

　　Avoid interference from strong external magnetic fields;

　　When installed and used outdoors, there should be a cover to avoid direct sunlight and rainwater erosion, which may affect the service life of the instrument;

　　During pipeline pressure testing, attention should be paid to the pressure measurement range of the pressure sensor equipped on the intelligent flowmeter to avoid damage to the pressure sensor due to overpressure;

　　Attention should be paid to the influence of installation stress. The upstream and downstream pipelines of the flowmeter should be coaxial, otherwise shear stress will be generated.

AfterSalesService :

• Use of DN200 spiral vortex flowmeter