Hello Elektrotanya People,
I have two Protek 506 digital multimeters, and they both have a fault with their Diode Testing Function. The first meter only displays the word "OPEn" with a voltage of 3.999V below it, and the second one only displays the word "Shrt" with a voltage of 0.000. Neither of the meters will shift from their respective displays, no matter what I do. I've never used the diode test function before today, and I was surprised that my first meter had this fault, so I tried the second meter, which has barely been used, and was surprised/disappointed that it too should have a faulty diode test function. Is this a particular problem with the Protek 506? What would be causing the problem? Can it be fixed? Please advise.