Welcome to Gardner Bender’s frequently asked questions page.
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There are currently a few different size utility knife blades available on the market for replacements. The RKT series of utility knives use a 2-3/8″ blades with two slots at the top of the blade. Blades with 3 slots or of a different length will not properly fit in the knife and can cause it to jam and not be able to retract.
To install teh batteries in this tester, you will need to remove the battery cover, which is located at the rear of the unit. The cover is the strain relief that connects the wire test lead to the body of the unit. You will need to twist the cover to remove it.
CT6101 Opening Battery Compartment
0ff 0n(amber) 0ff Open Ground
0ff 0ff 0n(amber) Open Neutral
0ff 0ff 0ff Open Hot
0n(red) 0ff 0n(amber) Hot/Ground Reversed
0n(red) 0n(amber) 0ff Hot/Neutral Reversed
0ff 0n(amber) 0n(amber) Correct
This depends on what is being tested. In all cases, the black lead will be placed in the jack marked “COM”. This will never change. The red lead will be placed in the corresponding jack that goes with what is being tested. For voltage, the red lead goes in the jack with the V under it. For resistance, it’s the jack with the Ω symbol under it. Current would be the jack with the A under it.
Below is a link to a page that shows what each of the symbols means.
Nothing! A clamp meter will only measure the current flowing through the wire, not the voltage. So a clamp meter will never be able to give you a voltage reading from the clamp section of the meter. You would still have to use your test leads to take a voltage measurement.
As for the current, you need to separate the three wires in thh appliance cord. A clamp meter will only give you a reading when you are around a single conductor of the cord. So with the hot and neutral of the cord both inside of the clamp, there will be no reading. With just the hot or just the neutral, you will get a reading.
We do offer an accessory, the E1 Line Splitter, that helps with this. This allows you to plug your appliance in on one side, and plug the other side into your receptacle. From here you can take an exact measurement, one that will be multiplied by 10, and you can use your test probes from your meter to test the voltage going to that appliance through the Volt Check holes in the top of the unit.