Product Description
This series of instruments is suitable for the measurement of clean or J -LW series turbine flow meter includes J -LWGY liquid turbine flow sensor, J - LWBY liquid turbine flow transmitter and J -LWSY field display turbine flow meter, etc., which belong to velocity type flow meter. It can be used to measure the volume flow or total amount in closed pipelines alone or with related equipment. It has the characteristics of simple structure, light weight, high accuracy, good repeatability, sensitive response, convenient installation and maintenance, etc. It is widely used in petroleum, chemical, water supply, food, pharmaceutical and scientific research and testing industries, and is ideal for flow measurement and energy saving meter.
J -LWGY type liquid turbine flow sensor is the basic product of J - LW series turbine flow instrument. It converts the flow of liquid in the pipeline into an electrical pulse signal, and is processed by the display instrument or computer system to complete the measurement or total amount of liquid flow in the pipeline. metering.
1 Structural features and working principle.
1.1 Structural Features:
The sensor is mainly composed of sensing components, signal detectors and amplifiers (see Figure 1). Its bearing system is cemented carbide, which improves wear resistance and ensures product accuracy; Among them: the amplifier is divided into two-wire system and three-wire system.
1.2 Working principle
When the fluid flows through the meter, the impeller in the meter is driven to rotate, and then through the magnetic coupling between the impeller and the signal detector, the flow rate of the fluid is converted into an electrical pulse signal output, which is amplified and shaped by the amplifier and transmitted to the display meter, that is to achieve the purpose of measuring the volume flow or total amount of the fluid Within a certain flow range, the pulse frequency f is proportional to the volume flow Q of the liquid flowing through the sensor. The flow equation is: Q=f/K where f-pulse frequency K--The meter coefficient of the sensor [1/L] is given by the "check sheet"
2. Basic parameters and performance stand
2.1 The sensor implements professional standards (JB/T9246-1999 turbine flow sensor)
2.2 The measurement range and working pressure are shown in Table 1.
2.3 Use environment:
Ambient temperature -20~+55ºC
Relative temperature 5%~95%
Atmospheric pressure 86~106Kpa
2.4 Measured fluid temperature
Ordinary type -20~+120ºC Explosion-proof type -20-70ºC
2.5 Explosion-proof mark: dBT5
2.6 Input signal: two-wire output
Output low level IOL~3mA Output high level IOH~13mA (square wave) Load resistance R (including line impedance) is in the range of 100~500 Ω (according to the configured display instrument or other receiving device input signal requirements, select the appropriate the R value.) Three-wire output: VOP-P≥5V (square wave)
2.7 Power Supply
Two-wire system: +24VDC Three-wire system: +12VDC~+24VDC
2.8 Transmission distance: 1000 meters
3. Connection structure and size:
3.1 The threaded connection structure is shown in Figure 2, and the connection
dimensions are shown in Table 2.
3.2 The flange connection structure is shown in Figure 3, and the connection dimensions
are shown in Table 2.
Flange structure and size implementation (JB79-59, JB81-59, JB82-59)standards.
Company Profile
FAQ
1. How long will you reply to me?
Normally in 1 hours, no more than 12 hours.
2. How can I get the quotation?
Please provide specification and application including sensing element, pressure range, thread connection, pressure type, medium, electronic connection, shell material etc. More details, more accurate quotation and earlier response.
3. Can I get sample?
Contact with our staff online directly and they would check stock for you.
4. Can I visit your factory?
You are warmly welcomed, our factory is located at Baoji city, Shaanxi province, China.
5. Can we use our logo on the products?
Yes, we provide OEM/ODM service.
6. How long is your warranty period?
Warranty period from the date of acceptance of 12 months.
7. What is your terms of payment?
We could accept T/T, L/C, Western union, PayPal, credit Assurance.
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