DO30B-2 multifunctional calibrator

1、 Purpose and characteristics:
The DO30B-2 multifunctional calibrator is suitable for verifying and calibrating various current and voltage meters below level 0.2. It can also be used as a high stability testing power supply, in conjunction with high-level standard meters, to calibrate current and voltage meters above level 0.2.
2、 Main functions:
1. 5 1/2 digit LED digital display output, which can be displayed in two ways: actual value or percentage.
2. The output range of AC and DC currents is: 0-100uA~500uA~2mA~5mA~20mA~50mA~200mA~500mA~2A~5A~20A.
3. The output range of AC and DC voltage is: 0-200mV~1V~2V~5V~10V~20V~50V~100V~200V~500V~1000V.
4. There are three types of communication frequencies available for selection: 50Hz, 60Hz, and 400Hz
5. Output overload can be automatically protected and manually reset.
6. Each voltage and current level can be overloaded by 20%.
7. Clamp meter measurement: equipped with our standard coil, it can measure AC 0~750A (some meters can measure above 1000A); The error of DC 0-1000A is ± 0.3%.
Appendix:

Output project	output range	rated output	maximum output	accuracy
AC/DC voltage	0～200mV	10mA	30mA	DC: ± (0.02% of reading+0.03% of full scale) AC: ± (0.03% of reading+0.05% of full scale)
	0～2V	20mA	60mA
	0～5V～10V～20V	40mA	100mA
	0～200V～500V	20mA	60mA
	0～1000V	10mA	30mA
AC/DC current	0～100uA～500uA ～2mA～5mA ～20mA～50mA	DC：3V AC：36V		DC: ± (0.02% of reading+0.05% of full scale) AC: ± (0.03% of reading+0.05% of full scale) Accuracy is not assessed below 2mA
	0～200mA ～500mA	DC：3V AC：12V
	0～2A～5A～20A	2V
standardresistance	20. 24, 50, 100, 240, 500 (Ω) 1, 2.4, 5, 10, 24 (K Ω) plus x 1K, x 1 magnification range (i.e. 10K Ω~24M Ω)	0.25W		±0.3%+20mΩ

3、 Technical performance:
1. Stability: DC<0.01%/2 minutes of full scale, AC<0.03%/2 minutes of full scale
2. Communication distortion:<0.5%
3. DC ripple factor:<0.1%
4. Output frequency and accuracy: 50Hz 60Hz 400Hz ＜ 1%
5. Range and accuracy of output voltage and current (23 ℃± 2 ℃, output value greater than 10% range)
6. Power consumption: AC power supply voltage 220V ± 10%, frequency 50Hz ± 1Hz; power consumption ＜ 180VA
7. Working environment: The temperature of the working environment is between 5 ℃ and 35 ℃, and the relative humidity is not greater than 80%
8. Working hours: continuous
9. External dimensions: 135 × 480 × 420mm3
10. Weight: Approximately 16kg