There are many types of electromagnetic flowmeters in the market and the classification is complicated. Electromagnetic flowmeter manufacturers installed different types of use, different installation environments, the use of properties such as the detailed division. This article briefly describes the classification by output signal connection and excitation connection system:
Four-wire electromagnetic flowmeter - four-wire system is the traditional electromagnetic flowmeter output signal line and power line (or magnetic flux wire between the flow sensor and sensor) consists of two sets of two wires of the four-wire system, is currently The main format. Two-wire electromagnetic flowmeters - current temperature, pressure/differential pressure, flow and level parameters, field instruments tend to develop two-wire instrumentation for output signals and power common conductors. Two-wire instruments do not require mains power, while electromagnetic flowmeters are often installed in remote locations where there is no mains supply. The use of a two-wire system can save the cost of utility wiring. The design idea of ​​the two-wire electromagnetic flowmeter power supply is divided into zero-signal output current (ie, 4mA) supply, greater than zero-signal output supply, and battery (or solar cell) supply. Battery-powered electromagnetic flowmeters and electromagnetic water meters are suitable for installation in difficult places such as city distribution pools or discharge points after sewage treatment in the suburbs. Some models have a battery life of 1-2 years, and some are as long as 8 to 10 years.
JDC Series - Charging Post Power Module Connector
These products are used in intelligent high-frequency switching power supplies, large-scale networks, computer communication power supplies, electric supplies, railway power supplies, and large-scale LED power supplies. Uninterruptible power supply(UPS) and so on
JDC series - charging post power module connector
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