TR Series Single Phase Digital Voltage Power Meter

A Voltage Meter is a fundamental electrical measuring instrument used to determine the potential difference (voltage) between two points in an electrical circuit. It plays a crucial role in monitoring, testing, and maintaining the performance and safety of electrical and electronic systems. Voltage meters are essential tools for engineers, electricians, and technicians in various fields, including industrial automation, power distribution, renewable energy, and electronic equipment testing.

The working principle of a voltage meter is based on measuring the voltage drop across its terminals. When the meter is connected in parallel with the circuit or component under test, it detects the difference in electrical potential and converts it into a measurable signal. In analog voltage meters, this potential difference drives a current through a moving coil mechanism, causing a pointer to deflect over a calibrated scale. In contrast, digital voltage meters (DVMs) use an analog-to-digital converter (ADC) to process the input signal and display the voltage value numerically on an LCD or LED screen, providing higher accuracy and easier readability.

Modern voltage meters can measure both direct current (DC) and alternating current (AC) voltages. They are designed with wide measuring ranges, covering low-voltage electronic circuits and high-voltage industrial power systems. Advanced models include features such as auto-ranging, true RMS (Root Mean Square) measurement, data hold, min/max value recording, and overvoltage protection, ensuring accurate and safe operation even in complex electrical environments.

Voltage meters are available in various types and configurations. Panel-mounted meters are commonly used in control panels, generators, and power distribution boards for continuous voltage monitoring. Portable digital meters or multimeters are widely used for field service, maintenance, and troubleshooting. High-precision bench models are employed in laboratories and research facilities for testing and calibration purposes.

In summary, a Voltage Meter is an indispensable instrument for voltage measurement and system diagnostics. Its combination of accuracy, reliability, and versatility makes it essential for ensuring the safe and efficient operation of electrical systems, preventing equipment damage, and maintaining power quality across a wide range of applications.

Accuracy of Measurement

• Voltage: level 0.5

Signal Input

• Connection Mode: single phase two wires

• Rated Voltage: AC 0-600V/DC 0-1000V

• Overload Voltage: 1.2 times (Continued), 2 times / second (instantaneous)

• Power Consumption: <1VA/phase (voltage)

• Impedance:>300KQ

• The Frequency: 45~65Hz or DC

Auxiliary Power Supply

•  Working range AC 220V

• Power Consumption: <4VA

Function Module

• Communication Interface: 1 way RS-485 communication, Modbus-RTU protocol

• Baud Rate: 1200-9600bps, the default is 2400bps

• Switch Input: 2 ways

• Switch Output: 2 ways(capacity: AC 250V /5A, DC 30V/5A)

• Transmission Output: 1 ways(analog output: 0/4-20mA or 0-5/10V)

Please note that above is our nomal function, please contact us for customizing special products.