Sinometer DT830B 20-Range Pocket digital multimeter --Black Review
Sinometer DT830B 20-Range Pocket digital multimeter --Black Feature
- 20-range AC/DC V and DCA multimeter
- 1.5V and 9V battery tester
- Ultra compact design
- Diode check and transistor tester
- Battery and fuse replacement
The DT830B digital multimeter is a compact, pocket-size light tool - a bargain if you need something cheap and reliable. The heart of the instrument is the ICL7106 IC coupled with a large 3 1/2 digital, 7 segment, 0.5" high LCD display with a maximum reading of 1999.
The DT-830B can measure DCV (0,1mV - 1000V), ACV (0,1V - 750V), DCA (0,1mA - 10A), Ohm (0,1Ω - 2MΩ) diode forward voltage drop and hFE for bipolar PNP and NPN transistors.
Specifications
The DT830B has a wide operating temperature: -20°C to 75° (32°F to 104°F) and a storage temperature of: -10°C to 50°C (10°F to 122°F). The accuracy is guaranteed to stay in the following limits for 1 year, when used at 23°C ± 5°C, less than 75% relative humidity:
AC voltage
Frequency range: 45Hz to 450Hz.
Response: Average responding, calibrated in RMS of a sine wave.
200V 100mV±1.2 % of rdg ± 10 digits
750V 1V±1.2 % of rdg ± 10 digits
DC voltage
200mV 0.1mV±0.5% of rdg ± 2 digits
2000mV 1mV±0.5% of rdg ± 2 digits
20V 10mV±0.5% of rdg ± 2 digits
200V 100mV±0.5% of rdg ± 2 digits
1000V 1V±0.8% of rdg ± 2 digits
Input impedance: 1M?
Maximum input voltage: 1000V DC or 750V rms (200mV scale: 500V DC or 350V AC rms) Note: some models will have a maximum DC input voltage of only 600V with an overload protection of 250V RMS AC for the 200mV range and 600V DC or RMS AC for other ranges.
DC current
Overload protection: F250mA 250V fuse (10A range is unfused!).
Resistance
Maximum open circuit voltage: 3.2V
Overload protection: 250V rms. AC on all ranges.
Other specs
Diode aprox. testing voltage is 2.8V with a current of 1mA. The overload protection in the diode test mode is 250V RMS. AC.
Over range indication: figure "1" on the display.
