HG30-3B multifunctional calibrator

1、 Purpose and characteristics:
HG30-3B typeMulti functional calibrator(hereinafter referred to as the standard source) isHuaguang High TechThe latest design by the company adopts a large screen LCD (192 × 64) backlit Chinese character display, with a good human-machine interface, high-precision high current output, and intelligent AC and DC standard voltage, current, and medianresistanceThe standard source and calibrator (where the AC output is displayed as true RMS). The instrument is equipped with various Chinese character prompt functions, which can simultaneously display and output actual values, percentages, and the full value of the tested meter on the same screenrangeFrequency, step value, grid number, etc. The output of the instrument can be set according to the full-scale value of the inspected tablerangeAnd the corresponding step amount can be selected according to the scale of the tested meter. Output adjustment selectablekeyboard(Key) control or potentiometer control. Equipped with digital display, error direct readingrangeFeatures such as width, fine grading, high precision, 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. 51/2-digit LCD digital display output, displaying both actual value and percentage simultaneously.
2. AdoptingkeyboardControl the increase or decrease of output quantity.keyboardThe control quantity is divided into 100%/N, 10%/N, 1%/N, and 0.1%/N (N is 4, 5, 6, 10, 15).
3External control regulatorIt can control the increase or decrease of output quantity off the machine, and there is a regulator on itkeyboardThere are two configurations: (with button prompt sound) and potentiometer, which can be freely converted.
4. The output range of AC and DC voltage is 0-1050V.
5. The output range of AC and DC currents is 0-22A.
6. Communication provides four output frequencies: 50Hz, 60Hz (59.7Hz), 400Hz, and 1000Hzcrystal oscillatorEnsure the accuracy and stability of frequency.
7. Output overload can be automatically protected, with Chinese characters and sound prompts indicating the protection status on the screen, 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: Equipped with the HG1000A standard coil specially designed for this instrument, it can measure 0-1000A current with an error of ± 0.3%.
3、 Technical performance:
1. Stability: AC<fullrange0.02%/5 minutes
DC<Fullrange0.01%/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 thisrangeBasic error (2) 50A 1KHz error is ± (0.15% of read value+full)range0.05%)

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