This product is designed and manufactured in accordance with national standards and verification regulations, and meets the requirements of DL/614-1997 (Multi functional Energy Meter), JJG307-2006 (Electromechanical AC Energy Meter), JJG596-1999 (Electronic Energy Meter), JJG597-2005 (AC Energy Meter Verification Device), DL/T460-2005 (AC Energy Meter Inspection Device Verification Regulations) and other regulations. Satisfy the calibration, verification, and functional testing of various single-phase active meters (mechanical, electromechanical integrated, fully electronic), three-phase active and reactive meters. At the same time, it has the management function of multifunctional energy meter data and strong certificate and report printing functions.
Product Features
Multi functional testing function
★ Verify electric energy meters with the same specifications but different constants and communication protocols;
★ Harmonic test function, set the 1st to 21st harmonics arbitrarily, and conduct harmonic impact tests;
★ It can perform fully automatic calibration on the demand cycle;
★ Can simulate on-site operation for time slot switching and combination error testing;
★ The daily timing error is tested using a high-precision clock tester, with an accuracy of up to 10-7;
★ Communication testing;
★ GPS broadcast timing, verification of data in the table, reading and writing of table device numbers;
★ Time zone testing and setting;
★ Measurement indication error test;
According to the requirements of the verification regulations, fully automatic verification can be carried out for verification items such as creep, start-up, basic error, standard deviation, etc;
★ Can conduct forward and reverse phase sequence tests, forward and reverse power tests, and four quadrant reactive power tests;
★ Can conduct voltage impact test, frequency impact test, and voltage imbalance impact test;
★ It can receive various pulse input signals, including mechanical watch dials, light-emitting diodes, infrared diodes, electrical pulses, etc.

Functional Features
★ Adopting a separate structure of cabinet and aluminum alloy meter rack, it is beautiful and lightweight;
★ High degree of automation, good stability and reliability, high output power;
The photoelectric sampler can achieve flexible adjustment, wide angle light response, and can also receive light pulse signals from electronic energy meters;
The device has a small keyboard operation and can achieve basic verification functions;
★ It can automatically complete the specified verification when operated on a PC, and can freely set preheating time, stealth time, typing time, typing power, internal control error limit, etc;
The device has complete protection and alarm functions such as fault detection, voltage short circuit, and current open circuit;
★ Powerful data management functions: data consolidation, automatic storage, data backup, data recovery, convenient and fast statistics and queries;
★ Support barcode input, display error curve graph, set upper and lower limits of error, multiple calibration schemes, manage device permissions, etc.

Technical Parameter
Egg donation and abdomen borrowing for childbirth ● Accuracy level of the device: 0.05 level, 0.1 level;
Voltage output: 3 × 57.7V/2220V/380V;
Current output: 3 × (0-100) A, 0.1A, 0.5A, 1A, 1.5A, 2.5A, 5A, 10A, 20A, 40A, 100A automatic switching;
Voltage output capacity: 80VA; Current output capacity: 300VA;
The phase adjustment range is 0.00 degrees to 359.99 degrees, and the adjustment fineness is 0.01 degrees;
Output frequency 45.00-65.00Hz, adjust fineness 0.01Hz;
Voltage and current regulation fineness 0.01%;
Output voltage, current, and power stability Sp are better than 0.01%, and γ p is better than 0.03%/3 minutes (PF=1);
● Waveform distortion:< 0.5%；
● Starting current output: One thousandth of the rated current, or any set current value;
Working voltage: 220V ± 10%, relative humidity ≤ 85%;
The clock accuracy is better than 10-7.