What is the difference between electromagnetic water meter and electromagnetic flow meter? In fact, electromagnetic water meter is also a kind of electromagnetic flow meter. Due to the electromagnetic flowmeter measurement medium is diverse, so there are many types of electromagnetic flowmeter on the market.

　　Electromagnetic water meter and electromagnetic flow meter is still different, the difference between them is mainly reflected in the following aspects.

　　Application areas

　　Electromagnetic water meter: mainly in the municipal field is widely used to measure clear water, raw water. To solve the water source and urban and rural water supply measurement, statistics, analysis, settlement function.

　　Electromagnetic flowmeter: suitable for industrial production of a variety of conductive media flow continuous measurement and production process control field, scientific research in the field of measurement and control.

　　Precision

　　Electromagnetic water meter: electromagnetic water meter accuracy is generally Ⅱ (Q2 ~ Q4 ± 2%, Q1 ~ Q2 ± 5%), high precision up to Ⅰ (Q2 ~ Q4 ± 1%, Q1 ~ Q2 ± 3%)

　　Electromagnetic flowmeter: accuracy is usually ±5%, high precision up to ±0.2%, ±0.3

　　Caliber

　　Electromagnetic water meter: mainly DN50~DN300 caliber, the whole DN25~DN800 caliber

　　Electromagnetic flowmeter: mainly DN25 ~ ND600 caliber is the main, the whole system DN10 ~ DN3000 caliber

　　Power supply mode

　　Electromagnetic water meter: mainly by internal power supply battery.

　　Electromagnetic flowmeter: mainly powered by mains (AC220V) and special external power supply (DC24V).

　　Sampling rate

　　Electromagnetic water meter: sampling rate in the range of 1 ~ 30 s / times (low sampling rate, the lower the power consumption)

　　Electromagnetic flowmeter: sampling processing rate is generally required to be higher than 100 ms / times.

　　Environment

　　(1) temperature

　　Electromagnetic water meter: generally in the 0.1 ~ 55 ℃ temperature environment for continuous operation.

　　Electromagnetic flowmeter: usually in - 20 ~ 55 ℃ temperature environment can be continuous, stable and reliable work.

　　(2) Protection

　　Electromagnetic water meter: the implementation of IP68 standard 2 m depth of water for more than 10 days (with the technology and the use of environmental enhancement, the standard of protection is also gradually improving)

　　Electromagnetic flowmeter: electromagnetic flowmeter is widely used, the operating environment is complex, so manufacturers for different environments designed for different protection methods for users to choose from, such as IP66 standard general-purpose electromagnetic flowmeter, can only protect against rainfall; high temperature and high humidity environment to use special sealing design; submersible electromagnetic flowmeter according to the IP68 standard design of the protective shell. Certain hazardous occasions (such as textile mills, flour mills, chemical plants, coal mines, flammable and explosive places) electromagnetic flowmeter, must be in accordance with the explosion-proof standard to design the shell protection. So electromagnetic flowmeter manufacturers will usually be used in accordance with the user's environmental conditions, to provide appropriate protection mode products.

　　(3) maintenance

　　Electromagnetic water meter: longer testing cycle ( about 2 years). (Usually almost in a state of no supervision, large caliber table data value on the measurement of settlement has a huge impact, and thus its design, testing and manufacturing quality requirements are higher)

　　Electromagnetic flowmeter: usually maintained and serviced by professionals, and often have a cycle ( 1 year or so) of testing and maintenance.