description:
The device is according to verification regulation JJG124-2005 "ammeter, voltmeter, power meter and resistance meter calibration regulations of the requirements and design 0.05 magnitude AC and DC standard sources. The source of the signals of the DSP and 16 high-speed digital-to-analog converters can control of the sine wave, distortion wave source. The display users graphics standard 240 x 128 LCD monochrome screen, chart characters, showed clear. Circuit design perfect protection, reliable operation, easy to operate.
Main Functions and Features
1. The device consists of a single-phase AC voltage standard resource, current standard resource and DC voltage, current standard resource of standard resource.
2. Have calibration function, which can accord to the standard of external value, fixed standard resource output values.
3. The setting of the range for verification 1999 (9), 3999 (9) a display of the digital multimeter.
4. Manual and semi-auto inspection 0.2 % and below levels of digital multimeter, an analogue meter installation type digital instrument, including DC analog output of digital instrument.
5. To generate containing 2 ~ 31 harmonic wave distortion, the harmonic number, number, amplitude and phase of the harmonic wave to base wave all can be programmed control.
6. With RS232 interface and large capacity non-volatile memory, it can store 300 blocks inspected meter test data. Through the PC software, the PC controls this device automatic and manual inspection, and the results are processing and management.
