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Resistance OHM Meter Coil Tester, Mini Tab Coil Tester Burner Measured Resistance OHM Meter DIY Tool Digital Display, Wire DIY Tool for Electronic Cigarette Coil Tool Kits for Atomizer 3V 0.01-20Ω. 2. £1288. Buy any 2, Save 2% FREE delivery 7 - 14 May. Add to basket.
- Amazon.co.uk: Multimeter Tester
1-48 of 419 results for "multimeter tester" Results. Check...
- Amazon.co.uk: Multimeter Tester
- Overview
- Setting up Your Ohmmeter
- Measuring Resistance
An ohmmeter is an electronic device that measures resistance in an electronic component or circuit. It works by using 2 probes to send a current through the circuit and measuring how much resistance, in ohms, that current encounters. The first step in using an ohmmeter is setting it up. Once you’ve done that, you can use it to measure the resistanc...
Make sure your meter has a battery installed or is plugged in.
If you just bought an ohmmeter, the battery may have come pre-installed in your unit, or packaged separately with instructions for installing it. You’ll need to do this whether your ohmmeter is digital or analog.
Analog ohmmeters are very basic and inexpensive and usually range from 0-10 to 0-10,000 ohms. Digital ohmmeters may have similar ranges or “auto-range,” where the device will read a circuit’s resistance and automatically select the best measuring range.
If you’re investing in an ohmmeter for general use, you probably ought to go ahead and buy a good quality "multimeter" (multi-tester), which can test other electrical values such as voltage and amperage as well.
Plug your test leads into the sockets on your meter.
For multi-functional meters, you will see a "common," or negative plug, and a "positive" plug. These may also be color-coded, with the black lead going into the negative plug and the red lead going into the positive plug.
Disconnect all power to the circuit you’re testing.
If you’re measuring the resistance inside a circuit or wire, it has to be completely dead in order for you to get an accurate reading.
This is also very important for your own safety.
Another source of power isn't necessary since your ohmmeter will supply all of the voltage and current for your circuit.
Trying to use an ohmmeter on a powered circuit can cause damage to the meter, the circuit, and you.
When testing an electronic circuit, be sure it is not live. This means not only unplugging it, but also discharging any capacitors in the circuit. Televisions and other electronics with cathode ray tubes and microwave ovens can have capacitors charged with thousands of volts even when unplugged.
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Ohmmeters (or ohm meters) are available in three main variations including micro-ohmmeter (for measuring low resistance), standard ohmmeters for general purpose and meg-ohmmeter (for measuring high resistance), all of which measure electrical resistance in ohms.
1-48 of 419 results for "multimeter tester" Results. Check each product page for other buying options. Amazon's Choice. ULTRICS Digital Multimeter, Voltmeter Ammeter Ohmmeter Circuit Checker with Backlight LCD Test Leads, Portable Multi Tester Measures OHM AC DC Voltage Current Resistance Continuity Diodes Transistor. 12,351.
- Fluke 1507 Digital Megohm Meter Tester. Since a lot of professional users are always looking for a decent ohm meter, we will start off our list with a similar option from Fluke.
- AEMC 2126.53 Digital Megohm Meter. If you liked our previous pick, but are looking for something within an affordable price range, you will certainly like the following option from AEMC.
- Samyo VC60B+ Digital Insulation Resistance Tester. Up next, we have the most affordable option available in the market for an ohmmeter. The following option is made by Samyo and it is definitely a great choice for beginners.
- Supco M500 Insulation Tester/Electronic Megohm meter. Supco also has a great option which can be used for external applications. Apart from this ohm meter, Supco offers a wide range of options that also includes various electronic accessories and other measurement tools.
Turn digital multimeter dial to resistance, or ohms, which often shares a spot on the dial with one or more other test/measurement modes (continuity, capacitance or diode; see illustration below).
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