Your light set had one job to do — and when it doesn't work you may be tempted to throw the entire string in the trash and replace it with a new set. But that's a little hasty and wasteful — instead,use a tool called a multimeterto check the string for failure and to find a...
To check a photocell, use a digital multimeter. Turn the multimeter on,and place it on the setting for resistance. Resistance is usually indicated by the Greek letter omega. If the multimeter is not auto-ranging, change the knob to a very high level, such as megaohms. Why does sensor ...
Measuring a fuse on board with an analog multimeter The common type and current rating of a fuse in a Monitor and Power Supply are slow blow 3.15A to 5 Ampere. Here is the part on how to test a fuse. Switch off the power of the equipment, remove the casing and you will see a fus...
The simplest way to test a bulb is to try it out in a fixture that you know is working properly. If the bulb works, it's the other fixture that has the problem. If you don't have another fixture for this simple test, you can test the bulb for continuity with a multimeter or cont...
To calculate the power an entire LED lighting installation uses, use a multimeter to measure the watts accurately. Determine the watts by multiplying the volts by the amps used in yourLED grow light system. If you have multiple LED lights, multiply the voltage and current for each LED light....
How to check a fuse with a multimeter If there is 12 Volt at both sides of the fuse, the fuse is OK. If you have a multimeter, there are two ways to check a fuse. The first way is to measure the voltage at both pins (blades) of the fuse. Small fuses in the car have the to...
Turn on the switch: Turn on the switch to power the circuit and check that the LED lights up. If the LED does not light up, double-check the connections and make sure the components are inserted correctly. Measure the voltage: Use a multimeter to measure the voltage across the LED and ...
To check and repair the lid switch: Step 1: Unplug the machine. You can clean out the lid switch port using a wooden manicure stick or even a chopstick. Step 2: If cleaning doesn't help, remove the top of the cabinet to access the switch itself. With the switch exposed, check to ...
Checked the lamp with a multimeter and its seems the lamp has indeed failed. Thanks oldturkey, at least I know now what the problem is. However, with the lamp only having used 79 hrs. I am checking all items in the projector to make sure there are no other faults that could have cau...
It is relatively easy to measure amps to determine the amount of power an appliance or load uses, but the measurement must be done accurately to avoid damaging your multimeter. Multiplying the voltage in a circuit, with the current flowing in the circuit, will give us the total power in the...