- Connect the black test lead to the COM port and the red test lead to the Vohm port.
- Set the range selector on the meter to 600 DCV to measure DC voltage or 600 ACV for AC voltage.
- Ground the black test lead and the red test lead at one point on the circuit.
How to use a Sperry voltmeter
- Connect each tip (probe) to the appropriate input.
- Set the function selector to the desired measurement type.
- Select the correct voltage range for the circuit to be measured.
- Touch the wires on the correct circuit terminals to create a digital display.
- Number 1: Press and hold the button. This button contains the readings from the measuring device after pressing.
- Number 2: AC voltage
- Update: Hertz.
- Number 3: DC voltage.
- Number 4: continuity.
- Number 5: direct current.
- Number 6: current contact.
- Number 7: Ordinary Jack.
Touch the free wire of the resistor with the tip of the red meter. Press the tip of the black meter against the negative battery terminal. Read the current value on the counter display. You should see a reading of around 90, or milliamps.
- Use a dual voltage tester to determine if the power supply is on or off.
- Place the black wire on the other screw.
- Test a container with a socket tester.
- Use the correct size for the stress test.
- Check with a non-contact voltage tester.
To check for continuity, attach the alligator clip to one end of the circuit or component under test and touch the other end with the metal probe tip. When the circuit is continuous (shorted), the tester LED turns on. If the lamp is off, the circuit is open or open.
Touch the inlet probe A located on the front of the Sperry DM5300. The digital display should read 1400 or less, and if the number is higher then the fuse should be replaced. Touch the probe with the 10A input connector. When the conference is over.
Sperry’s patented design allows for easy one-handed testing of the outputs when the probes are connected to the lower test box. Just plug in the probes and when the power is on, the neon indicators light up.
The spin button allows the user to set the multimeter to read various things like milliamps (mA) for current, voltage (V), and resistance (Ω). Two probes are connected to two of the ports on the front of the device. COM stands for normal and is almost always grounded or connected to a circuit.
A digital multimeter is a test tool used to measure two or more electrical values, mainly voltage (volts), current (amplifier), and resistance (ohms). It is a standard diagnostic tool for electrical / electronics technicians.
200 m is the maximum value displayed by the instrument when the y key is set. When the current is 190 mA, the meter displays 190. If the current is 205 mA, the meter overrange indicator flashes and does not output digital data.
An alternator equipped with a so-called collector can generate direct current. Use a device called a rectifier that converts AC power to DC power. Batteries provide direct current generated by a chemical reaction in the battery.
In fact, a car battery or other battery supplies direct current. It requires additional circuitry if you want to convert it to AC power. For example, a DC battery can produce AC power when coupled to an AC converter. A car battery always produces direct current.
The digital ammeter uses a shunt resistor to create a calibrated voltage proportional to the current flowing. As the diagram shows, to read the current we must first convert the current to be measured into a voltage with a known resistor RK. The voltage thus developed is calibrated to read the input current.
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