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DYNAMIC CAP TESTING. The “Z METER” is the most reliable capacitor tester on the market at any price. That’s because it is the only tester that dynamically tests capacitors for capacity value, leakage (at full rated voltage up to 600V) and dielectric absorption (a patented test). According to thousands of tests made by Sencore Field Engineers, less than 25% of all capacitor defects cause a value change. Only the “Z METER” steps in to find the remaining 75% that give so much trouble loading circuits, causing excess hum, upsetting biases, or who knows what. Value only testers, and bridges will mislead you. You need all three “Z METER” tests to be sure. The use of capacitors in electronics has dramatically increased in the past few years and the forecast is for even a greater usage. The transistor has given way to the IC, but due to the nature and construction of the capacitor and the inductor, these are not replaced with ICs. The more ICs that are used, the more capacitors and inductors that will be used. The tolerance of the capacitor used to be 20%, but today, you will find circuits having 5% tolerance capacitors as standard. The use of electrolytic capacitors has also drastically increased as well as the capacity range. Lytics of 10,000 uF can be found in many consumer electronic items. Now more than ever, the need to measure capacity value, leakage of the capacitor, inductor value and quality of the inductor has become very important. Without a good measure of these important parameters, proper circuit operation becomes more difficult. Sencore has met the challenge head-on with its all new, autoranging “Z METER” , the LC53, Now capacitors can be checked for value and for leakage at the rated working voltage on a digital readout. Inductors can be checked for inductance and for quality with the patented Sencore ringing test. The LC53 is truly the first complete capacitor and inductor analyzer. FEATURES The SencoreLC53 “Z METER” features advanced Digital Logic circuits that provide autoranging of the meter when checking the values of capacity or inductance. Simply hook up the capacitor or the inductor, press the proper VALUE button, and read the value on the large digital readout. The “Z METER” also checks capacitors for leakage with two selectable current ranges a t the rated working voltage from 3 Volts to 600 Volts. An LED (located between the LEAKAGE button and the APPLIED VOLTAGE switch) will flash on and off as a safety reminder when the leakage test voltage is set to 50 Volts or above. The Sencore patented ringing test checks coils, deflection yokes, and non-iron core transformers with an accurate check of good or bad. There are six switch selectable impedance matching positions to match the coil to the test circuit from 10 uli to 10 II. Good coils will show 10 or more ringing cycles on the digital display while bad ones will show less than 10. A special LEAD ZERO control lets you balance out the capacity or inductance of the test leads I'or those accurate readings of the very small capacitors and coils that you may encounter. The “Z METER” is also protected against accidental application of voltages to the test leads by a front panel replaceable fuse and a special relay inside the instrument.
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