SB2238 type DC digital voltmeter and ammeterDetailed product description：

The SB2238 DC digital voltmeter and ammeter is a high-precision electronic measuring instrument with microcomputer technology, featuring a five and a half digit reading, 1uV voltage resolution, and 0.1uA current resolution. This meter adopts advanced microcomputer and analog-to-digital conversion technology, which can perform automatic zero calibration and digital analog filtering. The zero position of the meter is stable, the reading is linear, and the anti-interference ability is strong. The display adopts seven bit LED with RS-232C standard serial communication interface, which can communicate with computers. Its excellent performance plays a great role in scientific research, industry, national defense and other fields.

Main technical parameters

1. Measurement range:
Voltage: 1uV~220.000V
Current: 0.1uA~100mA
2. Power supply: 220V ± 10%, 50Hz ± 1%
3. Dimensions: 280 × 210 × 100 (mm)
4. Quality: Approximately 3kg

Main technical parameters of each range:

range	basic error	measurement range	resolution
200mV	1uV~220.000mV	1uV	± (0.005% RD+2 words)
2V	10uV~2.20000V	10uV	± (0.003% RD+2 words)
20V	100uV~22.0000V	100uV	± (0.006% RD+2 words)
200V	1mV~220.000V	1mV	± (0.006% RD+2 words)
20mA	0.1uA~22.0000mA	0.1uA	± (0.02% RD+3 words)
100mA	1uA~100.000mA	1uA	± (0.03% RD+3 words)