HG30-3a digital multifunctional calibrator

HG30-3a digital multifunctional calibrator, multimeter calibrator, multimeter calibrator, multimeter calibrator, multimeter calibrator, multimeter calibration device
1、 Purpose and characteristics:
The HG30-3a multifunctional calibrator is an intelligent AC and DC standard voltage and current calibrator (with AC output displaying true RMS). The instrument is equipped with three display windows, which can simultaneously display the output actual value, percentage, and the full-scale value of the tested meter. The output range of the instrument can be set based on the full-scale value of the tested meter, and the corresponding step size can be selected according to the scale of the tested meter. Output adjustment can be controlled by keyboard (key) or potentiometer. It has the characteristics of digital display, error direct reading, wide range, fine grading, high accuracy, good stability, and easy use. Suitable for calibration, inspection, and maintenance of four and a half digit multimeters, as well as various pointer type AC and DC voltage and current meters at or below level 0.2 and 0.5; It can also be used as a high stability testing power supply, in conjunction with high-level standard meters, to calibrate 0.1 level current and voltage meters.
2、 Main functions:
1. 5¹/₂The LED displays the output quantity in two ways: actual value and percentage.
2. Use keyboard to control the increase or decrease of output volume. The keyboard control quantity is divided into 100%/N, 10%/N, 1%/N, and 0.1%/N (N is 4, 5, 6, 10, 15).
3. The external control regulator can control the increase or decrease of output quantity off the machine, and there are two configurations on the regulator: keyboard and potentiometer, which can be converted freely.
4. The output range of AC and DC voltage is 0-1050V.
5. The output range of AC and DC current is 0-20A.
6. Communication provides four output frequencies: 50Hz, 60Hz (59.7Hz), 400Hz, and 1000Hz, using crystal oscillators to ensure frequency accuracy and stability.
7. Output overload can be automatically protected and manually reset.
8. AC 50Hz output can also choose mains synchronization to reduce the impact of the frequency of the tested meter.
9. Clamp meter measurement function: equipped with our standard coil, it can measure current from 0 to 1000A with an error of ± 0.3%.
3、 Technical performance:
1. Stability: AC<0.02% of full range/5 minutes
DC<0.01% of full range/5 minutes
When making precise measurements, the instrument needs to be preheated for two hours.
2. Communication distortion:<0.5%
3. DC ripple factor:<0.05% (at rated output)
4. Output frequency accuracy: 50Hz, 60Hz (59.7Hz), 400Hz, 1KHz ＜ 0.1% (or mains synchronous)
5. Output voltage, current, and median valueresistanceThe range and accuracy are shown in Appendix 1 (23 ℃± 2 ℃, output value greater than 10% range)

Output project	output range	rated output	maximum output	Accuracy
AC/DC voltage	0～300mV	20mA	100mA	Basic error: DC: ± (0.02% reading+0.03% range) AC: ± (0.02% reading+0.03% range) Accuracy is not assessed for AC voltage below 100mV and current below 2mA 1KHz additional error ± 0.05% reading Voltage additional error: ±0.02mV
	0～1V～3V	50mA	100mA
	0～5V～10V～30V	100mA	200mA
	0～50V～100V～300V	50mA	100mA
	0～250V～500V～1000V	DC:20mA AC:40mA	DC:20mA AC:60mA
AC/DC current	0～100mA		DC:3V AC:36V
	0～1A		DC:3V AC:12V
	0～20A		1.5V
standardresistance	10. 24, 50, 100, 240, 500 (Ω), 1, 2.4, 5, 10, 24 (k Ω) plus x 1K, x 1 magnification range (10k Ω~24M Ω)	0.25W		±(0.2%+20mΩ)
Note: (1) When the working environment temperature exceeds 23 ℃± 2 ℃, for every 10 ℃ change, the additional error is less than the basic error of the range (2) 50A 1KHz error is ± (0.15% of read value+0.05% of full scale)

Appendix (1)
6. Power supply specifications: AC power supply voltage 220V ± 10%, frequency 50Hz ± 1Hz;
7. Working environment: The temperature of the working environment is between 5 ℃ and 35 ℃, and the relative humidity is less than 80%
8. Working hours: continuous
9. Dimensions: 180 × 480 × 480mm³
10. Weight: Approximately 24kg