This tester is one of the most accurate on the market today. It is driven by a microprocessor based circuit board that is both highly accurate, easy to use and has very low power consumption.
The large analog meter allows you see in real time exactly what the pen probe is reading. For example, when you first touch the probe to the gold sample you will see the initial indication as well as watching it zero in on the most accurate reading as it accumulates readings. Within seconds the needle will stop on the final value.
If the sample is dirty it might take a bit longer (clean your gold prior to sampling). If your pen probe is old or the tip is drying out, you will notice the meters behavior change indicating that the probe should be replaced.
Generally you can expect accuracy to +/- one karat, but the analog meter movement's seemingly infinite resolution allows you to see greater details as opposed to digital readouts that round up or down to a single karat.
The circuit board that runs the meter employs a patented firmware that is both clever and accurate. When you test a gold sample, even though it just takes a second or two to display the final reading, the meter takes and analyzes thousands of readings and adjusts it's needle indications on the fly as it is acquiring them.
At the same time it adjusts itself to the changes in the pen probe as it ages. It also senses movement and external interference such as local radio signals and other forms of electrical interference. This insures that it is always accurate and gives you the best pen longevity possible.
The KEE Gold tester uses a single AA battery. This low power design will usually operate in excess of 170 hours.
To change the battery, simply remove the rubber protective boot from your meter (if installed), flip it over so that is is face down and then remove the two phillips screws. Open the meter body and you will see the battery tray inside the upper part of the meter housing. Replace the battery with a fresh AA cell. Reassemble in reverse order and you're good to go.
The pen probe will give long life and reliability as long as you follow a few simple guidelines.
1- Always replace the protective cap when not in use. If the tip of the pen probe is allowed to dry out then the pen will need to be replaced.
2- Try not to introduce dirt or other foreign materials to the pen tip.
3- Try not to mash or deform the pen tip in any way. The tip is fairly rugged but will lose accuracy if deformed. Normal operation will not deform it as only a light touch is necessary during normal use.
That's it. Simply keep the cap on and don't damage the tip.
Perform this simple test if you wish to see if your pen is still operating properly.
1- Place a clean 18 karat sample on the platform.
2- Touch the pen probe tip to the sample and hold it there.
3- Turn the calibration knob fully counter-clockwise. The needle should end up somewhere below the center of the 18 karat range, or somewhere within the green 14 karat range.
That's it. If the needle doesn't fall within the specified ranges then your pen probe will need to be replaced. Simply purchase a new one from our web site.
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