Measuring Principles
The measuring principle of electromagnetic flowmeter is based on the electromagnetic
induction law of Farady. The sensor is mainly composed of measuring tube with isolate lining, a
pair of electrodes installed by penetration of the measuring tube wall, a pair of coils and iron
core to produce working magnetic field. When the conductive fluid flows through the measuringtube of the sensor, the voltage signal in direct proportion to the average flow velocity of the fluid
will be inducted on the electrodes. The signal is amplified and treated by the transmitter to
realize various display functions
1, Measurement is not affected by the variation of flow density, viscosity, temperature,
pressure and conductivity. High accuracy measurement is guaranteed according to the
linear measurement principle.
2, No obstacle in the pipe, no pressure-loss and lower requirement for straight pipeline.
3, DN 6 to DN2000 covers a wide range of pipe size. A variety of liners and electrodes are
available to satisfy different flow characteristic.
4, Programmable low frequency square wave field excitation, improving measurement
stability and reducing power consumption.
5, Implementing 16 bits MCU, providing high integration and accuracy; Full-digital
processing, high noise resistance and reliable measurement; Flow measurement range up
to 1500:1.
6, High definition LCD display with backlight.
7, RS485 or RS232 interface supports digital communication.
8, Intelligent empty pipe detection and electrodes resistance measurement diagnosing
empty pipe and electrodes contamination accurately.
9, SMD component and surface mount technology (SMT) are implemented to improve the
reliability.
Main Applications
WELTER electromagnetic flowmeter can be used to measure the volume flow of
conductive fluid in a closed pipeline. It is widely applied in the flow measurement and
control in the fields of chemical and petroleum industry, metallurgy industry, water and waste
water, agriculture and irrigation, paper making, food and beverage industry and
pharmaceutical industry.
Ambient Conditions
Ambient temperature: sensor: -25ºC to + 60ºC; converter: -25ºC to + 60ºC.
Relative humidity:
5% to 90%;
Working Conditions
Maximum fluid temperature:
Compact type: 60ºC
Remote type:
Teflon
150ºC
Neoprene
80ºC; 120ºC
Polyurethane 70ºC
Fluid conductivity: ≥ 5μS/cm
| Pipe Diameter |
DN10-DN3200 |
| Temperature |
-25~60ºC |
| High temperature customization |
| Pressure |
1.6Mpa |
| Special pressure customization |
| Flow |
Contact me to confirm |
| Medium |
Contact me to confirm |
| Supply Power |
85-265V |
| 11-40DC |
| Output Signal |
4-20mA |
| RS485 |
| Hart |
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.
Audited Supplier 
){kind=link}
){kind=link}