DO3020X Three phase Multi functional Energy Meter Field Calibration Instrument

2. Functional features:
2.1. Adopting a 7-inch 800 X 480 resolution true color TFT high brightness LCD screen, it is clearly visible under sunlight. Display all measurement parameters, vector diagrams, harmonic distortion, and calibration parameter settings on one screen, and calibrate energy meter errors without switching interfaces.
2.2 The touch screen and buttons can be operated, making the operation more convenient and fast.
2.3 Can simultaneously measure voltage, current, power, phase, frequency and verify errors; It can also display the primary side voltage, current, and power.
2.4 Real load verification of three-phase four wire and three-phase three wire active energy meters, as well as various reactive energy meters (Q90, Q60).
2.5 has a fundamental wave measurement mode, which can realize the calibration of the fundamental wave meter.
2.6 It has two power pulse input ports, which can simultaneously verify the active and reactive errors of two meters (main and auxiliary meters), or simultaneously verify the active and reactive errors of a multifunctional meter. It can also verify both the active and reactive meters simultaneously.
2.7 The output energy constant can be set for easy calibration of the instrument.
2.8 has an error correction function, which automatically performs error correction based on the accuracy level of the calibrated energy meter.
2.9 Measure CT transformation ratio, ratio difference, angle difference, and polarity.
2.10 can measure environmental temperature and humidity. And it can record the ambient temperature and humidity during measurement;
2.11 can analyze harmonics from 0 to 51, measure the content, amplitude, and relative fundamental phase of each harmonic. And display it with a histogram, which has an enlargement function for easy observation and analysis.
2.12 Waveform display with amplification function.
2.13 Users can choose 5A, 10A, 100A, 200A, 500A, 1000A, 2000A clamp meters or use flexible coils (Lokovski coils) 5000A, 10000A according to their needs to achieve actual load measurement of comprehensive errors of low-voltage energy metering devices. Can be equipped with three types of pliers at the same time.
2.14 Automatic recognition of current access method, users do not need to set it.
2.15 has the function of accumulating electrical energy. It is possible to conduct on-site reading tests on electric energy meters, calibrate meter errors, and verify constants. Active energy, reactive energy, and apparent energy can be accumulated simultaneously.
2.16 Rich vector graph display to meet various user habits.
2.17 can achieve rapid on-site identification of three-phase three wire and three-phase four wire incorrect wiring. And provide corrective steps. It is also possible to calculate the correction factor and make-up power under incorrect wiring.
2.18 supports barcode input, enabling on-site verification of errors without inputting verification parameters. (User optional)
2.19 supports input of numbers, letters, symbols, and Chinese characters.
2.20 has various functions for storing and uploading measurement data. Supports RS232 and USB communication. Measurement data can be exported and imported through a USB drive. And it can accept the verification plan downloaded from the PC, and quickly find the verification parameters of the table on site under various conditions (bureau number, account number, username). Can store measurement data for 1000 tables.
2.21 Equipped with a hard clock that can directly display the current time and date, and record the testing time at any time.
2.22 has RS-485 interface, which can be used for on-site reading of electricity and communication inspection of energy meters.
2.23 Scalable measurement: PT secondary pressure drop, PT secondary load, CT secondary load.
2.24 is equipped with a GPS interface, which can be used to calibrate and time the multifunction meter.
2.25 Power supply working range: 45-450V, with two wiring methods of internal and external connection, strong adaptability, safe and reliable.

3. Performance indicators:
3.1 Accuracy level of voltage, current, active power, and active electrical energy (with built-in current transformers): 0.05.
3.2 Reactive power and reactive energy accuracy level: 0.1 level.
3.3 Voltage input: 30V~560V, with four gears of 60V, 120V, 240V, and 480V, automatic shifting.
3.4 Current input: Built in current transformer: 0.02-12A, automatic shifting.
Clamp table: available in 5A, 10A, 20A, 100A, 200A, 500A, 1000A, and 2000A.
Flexible coil (Lokovski coil): 5000A, 10000A.
3.5 Basic Error