The bench accords with the standard of IEC 60736: 1982 testing equipment for electrical energy meters, IEC 62053
Can be used to test single phase energy meter (up to 0. 5 class)
Can do warm up test, starting test, no load test(creep test), error test(accuracy test), dial test, tests of the influence quantities and test of repeatability of the measurements.
It is using the PWM, technology to amplify voltage/current output, the high efficiency at >85%, and lower the heat. The PWM can check the malfunction checking, preset, alarm, and protection.
The signal source is using the newest digital controlled sine wave technology for frequency, amplitude and phase adjust.
The bench is using comparison technology to test the error of energy meters.
And it is using the error processor system to calculate the error of each energy meter by the sub-error system which can be connected by the internal RS485.

Different constant energy meter can be tested at one time.
Voltage is isolated by MSVT(multi secondary voltage transformer)output, which suits for the voltage/current close-link test of signal phase energy meter
The test bench can be installed scanning head, it can offer 3 ranges adjustment. It is also can be accepted the signal for both round-style energy meter and digital LED energy meter.
It has the auto-search black marker function which can precisely locate the black marker during the no load test and starting test.
The bench can choose to operate by keyboard or PC which is very convenient. The working status of bench can be seen very clear and easy operation.
It is using the testing software complied with WINDOWS98/2000/XP which can auto-testing different energy meters.
The software can realize the data from energy meter for statistics, search and management.
The energy meter hanging rack is made by Aluminum compound. The whole device configuration is a reasonable design and nice outfit

The test bench accuracy class: 0. 1/0. 2 class
Reference standard energy meter:
HC 3801 single phase reference standard energy meter
Accuracy class: 0. 05 /0. 1
Standard CT(current transformer) class: 0. 01/0. 02
MSVT(multi secondary voltage transformer) class: 0. 02
Primary voltage: 180-300V (Normal Voltage: 240V)
Secondary voltage: 180-300V

Secondary VA rating: 15VA per winding
Insulation secondary to secondary: 500V, 50Hz, 60 seconds
Primary to secondary ratio accuracy: +-0. 1% (typical)
Secondary to secondary ratio accuracy less than: +-0. 02%
Secondary to secondary phase angle accuracy less than +-1 minute
Number of secondary output: 8~60channel
Voltage amplifier:
Output voltage range: 50-288V;
Output maximum power: 800VA
Resolution: 0. 01%;
Stability: better than 0. 05%/3 min(time base 5S);
Distortion factor: < 0. 5% at linear load;
Frequency range: 45Hz~65Hz;
Power efficiency: more than 85%;
Ambient temperature: 10~ 50
Electronic overload and short-circuit protection.
Current amplifier:
Output current: range: 1mA~120A (option for 1mA~200A);
Output maximum power: 1500VA
Resolution: 0. 01%;
Stability: better than 0. 05%/3 min(time base 5S);
Distortion factor: < 0. 5% at linear load;
Frequency range: 45Hz~65Hz;
Power efficiency: greater than 85%;
Ambient temperature: 10~50
Electronic overload protection and security for open current circuit.
Phase Angle: 0~360, resolution of phase angle setting: 0. 1;
Output frequency range: 45Hz~65Hz; resolution: 0. 01Hz
Output stability of power: <0. 05% (180S)
Numbers of calibrated energy meter: 24 (6/12/24/32/40/48 on requested)
Input power: 220/240V 15%, 50/60Hz; power consumption: Max. 2500VA