OL refers to over limit.
current
With the multimeter you can measure the voltage on parts of the circuit board. You can also measure the resistance of resistors and make sure there are no short circuits in the circuit.
test it with a multimeter
They allow the user to test: Volts (AC and DC), Amps, Ohms and basic continuity.
One disadvantage of a multimeter is that the LCD display depends on the battery. If battery is low, the display will be dim. Another disadvantage is that it can record errors in case of fluctuation.
To effectively test wires with a multimeter, set the multimeter to the resistance or continuity mode. Touch the probes to the ends of the wire and check the reading on the multimeter. A low or zero reading indicates a good connection, while a high reading indicates a break in the wire.
When a digital multimeter displays "OL" while measuring resistance in ohms, it indicates an overload condition, meaning the resistance is too high to be measured by the meter. This typically occurs when the resistance is infinite, such as in an open circuit. In essence, it signifies that there is no continuity or that the component being tested is non-conductive.
To test a switch with a multimeter, set the multimeter to the resistance or continuity setting. Disconnect the switch from the circuit and touch the multimeter probes to the switch terminals. If the multimeter shows a reading of zero or close to zero, the switch is closed and working properly. If the multimeter shows an infinite reading, the switch is open and needs to be replaced.
To test wires with a multimeter, set the multimeter to the resistance or continuity setting. Touch one probe to each end of the wire. If the multimeter shows a reading close to zero, the wire is continuous and working properly. If the reading is infinite, there is a break in the wire.
To check an AC capacitor with a multimeter, set the multimeter to the capacitance setting. Disconnect the capacitor from the circuit and touch the multimeter leads to the capacitor terminals. The multimeter should display a reading close to the capacitor's rated capacitance. If the reading is significantly lower or higher, the capacitor may be faulty and in need of replacement.
To test for continuity in an electrical circuit using a multimeter, set the multimeter to the continuity or resistance setting. Then, touch the probes to the two points in the circuit you want to test. If there is continuity, the multimeter will beep or show a low resistance reading. If there is no continuity, the multimeter will not beep or show a high resistance reading.
To test wires effectively using a multimeter, first set the multimeter to the appropriate setting for measuring resistance or continuity. Next, ensure the wires are not connected to any power source. Then, touch the multimeter probes to each end of the wire and check the reading on the multimeter display. A low resistance reading indicates a good connection, while a high resistance or no reading indicates a problem with the wire.
To test wires effectively using a multimeter, first set the multimeter to the appropriate setting for measuring resistance or continuity. Next, ensure the wires are not connected to any power source. Then, touch the multimeter probes to each end of the wire and check the reading on the multimeter display. A low resistance reading indicates a good wire connection, while a high resistance reading may indicate a problem with the wire.
To test for power with a multimeter, set the multimeter to the voltage setting, connect the black probe to the ground and the red probe to the power source. The multimeter will display the voltage reading, indicating if there is power present.
To test electrical wires with a multimeter, set the multimeter to the voltage or resistance setting, then touch the probes to the wire's exposed metal ends. If the multimeter shows a reading, the wire is conducting electricity. If there is no reading, the wire may be faulty. Be sure to follow safety precautions and consult a professional if needed.
To test a light switch using a multimeter, set the multimeter to the resistance or continuity setting. Disconnect the switch from the power source and remove it from the wall. Place one multimeter probe on each terminal of the switch. If the multimeter shows a reading of zero or close to zero, the switch is working properly. If there is no reading, the switch may be faulty and needs to be replaced.
To test a light switch with a multimeter, set the multimeter to the continuity or resistance setting. Turn off the power to the switch. Remove the switch cover and expose the terminals. Place one multimeter probe on each terminal. If the switch is working properly, the multimeter will show continuity or a low resistance reading. If there is no reading, the switch may be faulty and needs to be replaced.