The DO30-J multimeter calibrator is an intelligent AC and DC standard voltage and current standard source. (The communication output is displayed as true significant value). There are two options for amplitude adjustment: button or potentiometer. It has the characteristics of digital display, fine grading, good stability, and easy use. Suitable for verifying, calibrating, and repairing digital multimeters, voltmeters, and ammeters with less than three and a half digits, as well as various pointer type multimeters, AC and DC voltmeters, and ammeters with less than 0.5 levels; It can also be used as a high stability testing power supply, in conjunction with high-level standard meters, to calibrate 0.2 level ammeters and voltmeters.

2. Main functions

2.2 Use buttons to adjust the increase or decrease of output, making it convenient to detect digital instruments.

2.4 The output range of AC and DC voltage is 0-1050V.

2.6 There are three AC frequencies available for selection: 50Hz, 60Hz, and 400Hz.

3. Technical performance

DC<0.05% of full scale/5 minutes

3.3 DC Ripple Factor:<0.1% (Output DC voltage greater than 1V)

The range and accuracy of output voltage, current, and median resistance should comply with the parameters in the table below (23 ℃± 2 ℃, output value greater than 10% range, 60Hz can be used when 50Hz is unstable)