This device is a 0.05 (0.1) single-phase AC and DC standard device designed in accordance with the requirements of the Verification Regulation JJG124-2005 "Verification Regulations for Ammeters, Voltmeters, Power Meters and Resistance Meters".
The signal part of the source adopts DSP and 16-bit high-speed digital-to-analog converter to form a controllable sine wave and distortion wave signal source.
The circuit design is perfect, reliable, and easy to operate.
The display adopts a standard graphic 240×128 dot matrix LCD monochrome screen, and the chart characters are displayed clearly.
Main Specifications
AC output
·Voltage range 50V, 100V, 200V, 400V, 800V;
·Current range 0.5A, 1A, 2.5A, 5A, 10A, 20A;
·Adjustment range 0～120% (except 800V voltage);
·Adjust the fineness to 5×10-5;
·The maximum output capacity of voltage and current is 20VA;
·Voltage and current setting accuracy ±(0.03%RD+0.02%RG);
·Voltage and current output stability ≤0.01% /60 s (peak-peak value);
·Voltage and current waveform distortion degree ≤0.3%;
·Power output adjustment accuracy ±(0.06%RD+0.04%RG);
·Sine wave output frequency range (45～65)·N Hz (N=1,2,3,……31); adjustment fineness 0.001·N Hz (N=1,2,3,……31); adjustment Accuracy 0.01 Hz
·Phase adjustment range 0～359.99°; adjustment fineness 0.01°;
·Harmonic output 2～31 times, amplitude 0～20% (rated value of fundamental wave); phase fineness 0.01°
·N (N is the harmonic order, N=2,3,4,……31); the output can contain multiple harmonics at the same time, or set the fundamental wave amplitude to 0, and output a sine wave higher than the power frequency.
DC output
·Voltage range 200mV, 400mV, 2V, 4V, 20V, 40V, 200V, 400V, 1000V;
·Current range 0.1A, 0.3A, 1A, 3A, 10A, 30A;
·Voltage and current adjustment range 0～110% (except for 1000V voltage and 30A current);
·Voltage and current adjustment fineness 5×10-5;
·Voltage and current output capacity up to 20W;
·Voltage adjustment accuracy ±(0.03%RD+0.02%RG);
·Current setting accuracy ±(0.06%RD+0.04%RG);
·Voltage and current output stability ≤0.01%/60s (peak-peak value);
·Voltage and current output ripple ≤1%.
Working power: Single-phase 220V±10%, 50Hz±5%.
Use environment temperature 20℃±10℃, relative humidity ≤85%RH.
Volume and weight 440×460×165mm3, about 11kg.
Main functions and indicators
1. The device is composed of a single-phase AC voltage standard source, a current standard source, a DC voltage standard source, and a current standard source.
2. With calibration function, it can correct the output value of the standard source according to the display value of the external standard.
3. It can manually and semi-automatically test various single-phase AC power frequency indicator meters of class 0.2 and below in the power system, such as voltmeter, ammeter, power meter,
Frequency meter and various direct current meters.
4. It can generate distortion waves containing 2 to 31 harmonics. The number, order, amplitude and phase of the harmonics to the fundamental wave can be controlled by program.
5. Equipped with RS-232 interface or USB interface and large-capacity non-volatile memory, which can store the test data of 500 pieces of tested meters. Through the superior
Machine software, the device can be controlled by PC to carry out automatic and manual inspection, and process and manage the results.
Mobile version
15388193573
