PZ series DC electric measuring meters are designed for DC screen,solar power supply,telecommunication base station and other applications.This series of meters can measure voltage,current,power,forward and reverse power in DC systems.It can be used for local diaplay,and can be connected with industrial equipment and computer to form a measurement and control system.
The meter can have RS-485 communication interface and adopt Modbus-RTU protocol;it can be equipped with analog output,relay alarm output,and switch input/output.According to different requirements,set and control the ratio,alarm,communication and switch output through the meter panel buttons.
1.M:4-20mA analog quantity;C:RS485/Modbus-RTU communication;K:switch DI/DO;J:relay alarm;L:LCD(liquid display);
2.PZ□-PF/* and PZ□-Q/* can be replaced with PZ□-P/*.
3.DC meter is suitable for PV plant,substation,battery DC system electrical parameter monitoring.
Auxiliary power terminal
Signal input terminal
-Direct input of signal
-DC transmitter with isolation
1. No isolation measures are taken inside the meter between the voltage signal port and the current signal port.When wiring,please note that the voltage difference between the negative terminal of the voltage signal and the negative terminal of the current signal must not exceed 5V.
2. In the actual use process,if the voltage or current signal is opposite to the wiring direction,the corresponding monitoring amount will be a negative value.When displayed,the corresponding display item will appear with a “-”sign.When the voltage and current signals are all positive or negative,the power will be expressed as positive,and the electric energy will be expressed as kWh.When the voltage and current are positive and negative,the power will be expressed as negative,and the electric energy will be expressed as kWh.The electric energy is measured by positive and negative separately,and does not affect each other.
3. If a DC transmitter is used,please inform us in detail of the transmitter performance and specifications before ordering.
Additional function terminal
1. This wiring is for reference only，which is subject to the wiring diagram on the meter.
2. Relay alarm output and digital output DO2 multipexing.