Product Introduction

The LD-308 Three-Phase Electric Energy Meter Field Calibration Instrument is a high-precision testing device developed and manufactured by our company, integrating electrical parameter measurement, electric energy meter calibration, and wiring judgment. Equipped with high-precision, high-linearity voltage and current transformers, the instrument achieves high measurement accuracy for various parameters. Additionally, it features a clamp-on current transformer, simplifying on-site wiring and allowing direct connection without interrupting the current circuit.

The LD-308 three-phase energy meter field calibration instrument features a large, color LCD display, a full Chinese graphic operation interface with Chinese character prompts, and a liquid crystal display interface for multi-parameter display. Its user-friendly interface, vector diagram display, and wiring judgment provide a reliable basis for checking circuit correctness. The instrument uses a full-touch conductive silicone keyboard for operation, offering a good tactile experience and ease of learning. It is equipped with a large-capacity non-volatile data storage memory, allowing the retention of on-site calibration data. It can store up to 1000 sets of on-site calibration results and provides backend microcomputer management software for uploading results to computers, enabling computerized management.

Product Synonyms: Energy Meter Calibration Tool, On-site Energy Meter Calibration Tool, Three-phase Energy Meter On-site Calibration Tool, Energy Meter Calibration Instrument, Three-phase Energy Meter Calibration Device

Product Features

The three-phase electric energy meter field calibration instrument operates with a multi-processor setup centered around a high-speed floating-point DSP processor. It features a 6-channel synchronous 16-bit ADC converter to ensure simultaneous voltage and current calculations.

2. Equipped with an 8.4-inch industrial-grade TFT LCD screen with 800×600 resolution, offering clear, attractive display and ample information. It allows for the setup of calibrated parameters, electrical parameter measurements, error testing, and vector diagrams all on a single screen.

3. Integrated keypad and touch screen for user interaction, easy to operate.

The three-phase energy meter on-site calibration instrument features 144 types of incorrect wiring detection (48 types for three-phase three-wire, 96 types for three-phase four-wire) and accurately and clearly describes error messages in text.

5. Can test the 2~51st harmonics content of three-phase voltage and current in the power grid, as well as the total harmonic content, and display them intuitively with a bar chart.

6. Displays waveform of voltage and current for each channel.

7. Built-in current transformer MIN2mA start-up, capable of distinguishing incorrect wiring of the electricity meter under no-load conditions during high supply and high measurement.

8. The three-phase electric energy meter on-site calibration instrument is equipped with a large-capacity Flash storage, USB communication interface, and supports plug-and-play upload of test data.

9. No blind spots in testing; capable of measuring all types of electricity meters from both domestic and international markets.

10. The three-phase electric energy meter on-site calibration instrument can operate under various power supply modes, including both AC power supply and power supply from the on-site testing circuit.