How does a DT830b work?

Table of Contents

On the DT830b multimeter, place the red probe in the V, W, mA port of the power supply and put the black probe in the COM port. To read the voltage of the DC power supply, you can turn on the digital multimeter and select the appropriate reading mode. You can select either 200m, 2000m, 20, 200 or 1000V.

Why is my digital multimeter not working?

The first step of troubleshooting is to check the battery and, try to power on your digital multimeter. If the multimeter doesn’t turn on or the display is dim you may have a weak or dead battery. Simply replace the battery and you should be good to go.

How use DT9205A digital multimeter?

Measure Voltage on the DT9205A

Select the voltage type, AC or DC.
Plug the black lead into the port labeled COM on the digital multimeter.
Plug the red lead into the voltage port indicated with the V and ohms symbol.
Using the two leads, test the voltage of the circuit desired.

Why won’t my multimeter read volts?

A drop in battery voltage can cause the internal reference voltage to drop which then could cause the meter reading to be high. So, if you are not getting normal voltage readings on your multimeter, replace the current batteries with newer ones and then check again.

How do I reset my digital multimeter?

How to Calibrate a Digital Multimeter

Set the multimeter to the highest resistance range by turning the dial to the highest “ohm” setting.
Touch the test probes of your digital multimeter together.
Press the calibration knob until the display reads “0” on the digital multimeter if you don’t see “0 ohms” initially.

What is HFE in multimeter?

hFE is an abbreviation, and it stands for “Hybrid parameter forward current gain, common emitter”, and is a measure of the DC gain of a junction transistor. So on a multimeter, it indicates a mode where the meter can measure (probably crudely), the HFE of a transistor.