Multi meter calibration device-Global supplier

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Room 1118, 11th Floor, Union Building, No. 350 Wuning Road, Putuo District, Shanghai

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Multi meter calibration device

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Main indicators

>AC/DC voltage output: 0-1000V>AC/DC current output: 0-20A
>Resistance measurement: 0-4M Ω>Point frequency square wave: 1kHz-1000kHz
>Frequency regulation: 45-65Hz>Device accuracy: 0.05 or 0.1 level

Main functions

1. It can semi automatically or manually check the basic errors of various pointer and digital multimeters, power frequency meters (voltmeter, ammeter, frequency meter, resistance meter) in the power system, and can also detect digital instruments with DC analog output；

2. The power supply can generate distortion waves with harmonics ranging from 2nd to 31st, and the number, order, amplitude, and phase of harmonics on the fundamental wave can be programmed；

The working frequency band of the amplifier is 40Hz~1kHz, with good linearity. The current amplifier is a constant current source, and the voltage amplifier is a constant voltage source. Due to its lightweight, this device is more suitable for on-site verification and use；

4. Equipped with RS-232 interface. Through the upper computer software (optional), this device can be controlled by a PC for automatic or manual inspection, and the results can be processed and managed；

5. Equipped with a large capacity non-volatile memory, it can store 500 pieces of raw data for the inspection table for reference and uploading；

6. Optional clamp gauge verification coil verification clamp gauge (200A-400A-1000A)；
7. The device consists of a single-phase AC standard source, a current standard source, a DC voltage standard source, and a current standard source. It can also be used as a single-phase power source or as an integrated calibration device for meters and sources.

Technical indicators

AC voltage range: 200mV, 400mV, 2000mV, 4000mV, 20V, 100V, 200V, 500V, 1000V, maximum output capacity: 20VA;

AC current range 2mA, 4mA, 20mA, 40mA, 0.2A, 0.5A, 2A, 5A, 10A, 20A maximum output capacity 20VA;

AC voltage and current regulation range 0-120% FS (excluding 1000V range), regulation fineness 5 × 10^－5；
Accuracy of AC voltage at power frequency

Accuracy of 20V-1000V range ± (0.03% RD+0.02% FS); Stability ≤ 0.01% FS/60s;
Accuracy of 200mV-4000mV range ± (0.3% RD+0.2% FS); Stability ≤ 0.04% FS/60s;

Accuracy of AC current at power frequency

Accuracy within the range of 0.2A to 20A ± (0.03% RD+0.02% FS); Stability ≤ 0.01% FS/60s;
Accuracy of 2mA to 40mA range ± (0.3% RD+0.2% FS); Stability ≤ 0.04% FS/60s;

The frequency adjustment range is 45-65Hz, the adjustment fineness is 0.001Hz, and the accuracy of the setting value is 0.01Hz;
AC voltage and current output waveform distortion ≤ 0.3%;
Harmonics 2-31, amplitude 0-20%, phase fineness of each harmonic 0.01⁰·N (where N is the harmonic order);
The DC voltage range is 200mV, 400mV, 2000mV, 4000mV, 20V, 40V, 100V, 200V, 400V, and 1000V, with a maximum output capacity of 20W;

DC current range 20 uA、40uA、200uA、400uA、2mA、4mA、20mA、40mA、0.2A、1A、2.5A、5A、10A、20A Maximum output capacity of 20W;
DC voltage and current regulation range 0-110% FS (excluding 1000V range), regulation fineness 5 × 10^－5；
DC voltage and current output stability ≤ 0.01% FS/60s (peak to peak);
Accuracy of DC voltage setting value ± (0.03% RD+0.02% FS);
Accuracy of DC current setting value ± (0.06% RD+0.04% FS);
The range of electronic resistance box is 0-200 Ω, 200-400 Ω, 0-2k Ω, 2k Ω -4k Ω, 0-20k Ω, 20k Ω -40k Ω, 0-20k Ω, 200k Ω -400k Ω, 0-2M Ω, 2M Ω -4M Ω;
Electronic resistance box adjustment range 0-100% FS; adjustment fineness 0.02%;
Accuracy of electronic resistance box

When the test current does not exceed the maximum allowable input current, the accuracy of the set values within the range of 0-100% FS is ± (0.12% RD+0.08% FS) for 0-2k Ω, 0-20k Ω, and 0-20k Ω;
The accuracy of setting values for 0-200 Ω and 0-2M Ω within the range of 0-100% FS is ± (0.3% RD+0.2% FS).
When the test current does not exceed the maximum allowable input current, the accuracy of the setting value within the range of 5% to 100% FS is ± (0.12% RD+0.08% FS) for 2k Ω～ 4k Ω, 20k Ω～ 40k Ω, and 200k Ω～ 400k Ω; The accuracy of setting values within the range of 5% to 100% FS is ± (0.3% RD+0.2% FS) for 200-400 Ω and 2M Ω～ 4M Ω.

Point frequency square wave output 1kHz, 5kHz, 10kHz, 50kHz, 100kHz, 200kHz, 1000kHz;
Square wave amplitude 4.5V; accuracy of setting value 5 × 10^－5
Working power supply single-phase 220V ± 10%, 50Hz ± 5%;
The operating environment temperature is 200C ± 100C, and the relative humidity is ≤ 85% RH;
The external dimensions are 440 × 360 × 160mm and the weight is 12kg.

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