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Shanghai Foreckon Instrumentation Co., Ltd.

Vortex Flow Meter, Air Flow Meter, Air Flowmeter manufacturer / supplier in China, offering New Design Intelligent Air Flow Meter/Flow Sensor (JH-VFM), Oil Field Gas Turbine Flowmeter (JH-LWQ), Low Cost CO2 Gas Turbine Flowmeter for Liquid Oil Diesel with Pressure Transmitter (JH-LWQ) and so on.

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New Design Intelligent Air Flow Meter/Flow Sensor (JH-VFM)

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Basic Info
  • Model NO.: JH-VFM
  • Main Application: Water, Wastewater, Diesel Fuel, Nature Gas, Corrosive Liquid/Gas, Steam
  • Sensor: Tube/Flange
  • Type: Turbine Flow Meter
  • Measuring Principle: Mechanics
  • Certification: CE, RoHS, ISO
  • Temperature: -50c~350c
  • Output Signal: 4-20mA,Pulse,RS485,Hart
  • Connection: Flange/Clamp
  • Protection Level: IP68
  • Specification: CE, ISO
  • HS Code: 9026100000
  • Accuracy: ±0.6-1%
  • Size: Dn15-300
  • Application: Industrial Production
  • Measuring Media: Gas ,Liquid,Steam
  • Measurement Object: Closed Pipeline
  • Display: LCD
  • Power Supply: 24VDC
  • Body Materia: Ss304/Ss316
  • Pressure: 1.6MPa, 2.5MPa, 4.0MPa, High Pressure
  • Trademark: JH
  • Origin: Shanghai
Product Description
Digital Vortex Flow Meter

New Design Intelligent Air Flow Meter/Flow Sensor (JH-VFM)
New Design Intelligent Air Flow Meter/Flow Sensor (JH-VFM)
New Design Intelligent Air Flow Meter/Flow Sensor (JH-VFM)



Designed in three-wire or two-wire system, E Series Display Circuit is a newly emerged compact circuit of Vortex Flow Meter. Its amplified circuit belongs to the Analog type. Within the conventional flow range, the flow rate of gas, liquid and steam can be measured in high accuracy through using this E Series Display Circuit. In addition, switches can be set up to adapt to a variety of medium-calibers and various kinds of measurements. Remote data processing and remote signal circuit are divided into three-wire system and two- wire system. The three-wire system can be connected with RS485 communication equipment; it is also battery-powered. Using 4-20mA current output, the two-wire system can provide isolated original pulse output.
 
Application:
Can be used to measure the saturated steam, superheated steam,
Various gases (such asLPG, natural gas, compressed air, oxygen, nitrogen, argon, hydrogen, 
carbon dioxide, etc.), water and low viscosity, low-temperature liquid (such as saline, liquid nitrogen).
Vaporliquid generic, no real solution calibration; closed conduits can accurately measure steam, 
gas and liquid flow.
 
Features:
-Advanced circuit, power consumption low, 
-Wide measurement range, 
-Simple structure, 
-Small resistance loss, 
-Firmness and durability, wide application,
-Long service life, stable operation, 
-Convenient installation and debugging.
 
Technical parameters:
Nominal diameter(mm)25,40,50,65,80,100,125,150,200,250,300,(300~1000 Insert type)
Nominal pressure (MPa)DN25-DN200 4.0(>4.0 Supply agreement),DN250-DN300 1.6(>1.6 Supply agreement)
Medium temperature(ºC)Piezoelectric type:-40~260,-40~320;Capacitance type
: -40~300, -40~400,-40~450(Supply agreement)
Body material1Cr18Ni9Ti
Allowable vibration accelerationPiezoelectric type:0.2g     Capacitance type:1.0~2.0g
Accuracy±1%R,±1.5%R,±1FS;Insert type:±2.5%R,±2.5%FS
Range of1:6~1:30
Power supply voltageSensor:+12V DC,+24V DC;Transmitter:+12V DC ,+24V DC;Battery type:3.6V Battery
Output signalSquare wave pulse ( not including the battery power supply type ): high level or low level5V,1V; current: 4~ 20mA
Pressure loss coefficientIn line with the JB / T9249standard Cd = 2.4
Explosion proof marksIntrinsic safety type: Exd IA CT2-T5 flameproof type: Exd CT2-T5
Protection gradeThe ordinary IP65  diving type IP68
Environmental conditionsTemperature - 20~ 55,5% ~ 90% of relative humidity, atmospheric pressure is 86 ~ 106kPa
Applicable mediumGas, liquid, steam
Transmission distanceThree wire system pulse output type: < 300m, two line standard current output type (4 ~ 20mA ): load resistance less than 750ohm
               
Flow range of vortex flow sensors :
Meter diameter
(mm)
LiquidGas
Measuring range
(m3/h)
Output frequency range(Hz)Measuring range
(m3/h)
Output frequency range(Hz)
251.2~1625~3368.8~55190~1140
402~4010~20027~205140~1040
503~608~16035~38094~1020
806.5~1304.1~8286~110055~690
10015~2204.7~69133~170042~536
15030~4502.8~43347~400033~380
20045~8002~31560~800022~315
25065~12501.5~25890~1100018~221
30095~20001.2~241360~1800016~213
300100~15005.5~871560~1560085~880
400180~30005.6~872750~2700085~880
500300~45005.6~884300~4300085~880
600450~65005.7~896100~6100085~880
800750~100005.7~8811000~11000085~880
10001200~17005.8~8817000~17000085~880
>1000Agreement
Agreement
Note: (300) to (1000) diameter for insertion type

Dimension of type vortex flow meter:
DNLL0HDPipe size
158011640068φ18×1.5
208011640068φ25×2.5
258011640068φ32×3.5
328011640068φ39×3.5
408011640480φ49×4.5
508011641288φ59×4.5
6580116428105φ74×4.5
8080116446120φ89×4.5
10080118472148φ109×4.5
12585124492174φ134×4.5
15090135515196φ159×4.5
200105150570250φ219×9
250120166620300φ273×11
300135185670350φ325×12 

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