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Zhengzhou Ming He Electronic Technology VAM7520P Operating Manual
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VAM7520P Voltage Meter6Exit debug mode : In the debug mode, you can exit by pressing the < OUT >button for a while.5.4 The functions of debug mode5.4.1 "0 - U" is the calibration of the voltage value, the voltage value displays inthe digital tube is the current measure value. We can choose two points tocalibrate the voltage. Generally, we choose 32V as the high voltage point, 12Vas the low voltage point. The demarcation criterion of highs and lows is 20V.Above 20V is the high point voltage in default, less than 20V is the low pointvoltage in default. Now we can compare to a standard voltmeter, press keyto increase the voltage measure, press key to decrease the voltagemeasure, two points will affect each other. After adjusting back and forth 2-3times,the measured values can be consistent with the values of the standardvoltmeter.5.4.2 "1 - C" is the calibration of the current value, the current value displays inthe digital tube is the current measure value. We can choose two points tocalibrate the voltage. Generally, we choose 3A as the high current point, 0.1Aas the low current point. The demarcation criterion of highs and lows is 2A,Above 2A is the high point current in default, less than 2A is the low pointcurrent in default. Now we can compare to a standard ammeter, press keyto increase the current measure, press key to decrease the currentmeasure, two points will affect each other. After adjusting back and forth 2-3times,the measured values can be consistent with the values of the standardammeter.5.4.3 "2 - ES" is the function to save parameters. When you need to saveparameters, adjusting to the "2 - ES", the digital tube displays "-n-" by default,indicating that don’t save the parameters, you can adjust to "- y -" by pressingor , then press < OUT >,the meter will save parameters and exit thedebug mode automatically. |
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