Reading Methods and Simple Wiring Techniques for DIN Rail Energy Meters

DIN rail energy meters, as a commonly used power measurement device, are widely applied in various power systems. For users, mastering its reading and wiring methods is crucial. This article will detail the reading and wiring techniques of DIN rail energy meters.

Reading methods of DIN rail energy meters

The reading methods of DIN rail energy meters mainly divide into two types: direct reading and multiplier reading.

Direct reading

For general direct-entry DIN rail energy meters and three-phase DIN rail energy meters, you can directly read the number from the meter, which represents the current power consumption. If you need to calculate the power consumption for a certain period, you just need to subtract the previous reading from the current reading.

Multiplier reading

Some DIN rail energy meters have a multiplier function, which means the number on the meter needs to be multiplied by a multiplier to get the actual power consumption. In this case, you need to pay attention to the multiplier value on the meter. When reading, multiply the number on the meter by the multiplier. For example, if the meter's multiplier is 40 and the meter reading is 236.8, the actual power consumption is 236.8 multiplied by 40, which equals 9472 kWh.

Wiring methods of DIN rail energy meters

The wiring of DIN rail energy meters is relatively simple. Below are the three basic wiring methods:

Live wire in, live wire out, neutral wire in, neutral wire out

This is the most basic wiring method. The live wire in and live wire out are respectively connected to the two live wire terminals of the meter, and the neutral wire in and neutral wire out are connected to the two neutral wire terminals of the meter. This wiring method is suitable for single-phase circuits.

Live wire parallel connection method

In some cases, to simplify the wiring, the live wire in and live wire out can be paralleled to one live wire terminal of the meter, while the neutral wire is still connected in and out separately. This wiring method can also be used for single-phase circuits.

Three-phase circuit wiring method

For three-phase circuits, DIN rail energy meters usually have three live wire terminals and one neutral wire terminal. The three live wires are connected to the three live wire terminals of the meter, and the neutral wire is connected to the neutral wire terminal of the meter. It is essential to ensure that the wiring order of the three-phase circuit matches the markings on the meter to avoid incorrect measurement or equipment damage.

In conclusion, mastering the reading and wiring methods of DIN rail energy meters is crucial for the normal operation and accurate measurement of power systems. I hope the introduction in this article will be helpful to users.

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