Precision Gold Multimeter Manual
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How to Use the Precision Gold Multimeter N73BZ
The Precision Gold Multimeter N73BZ is a 3-in-1 E Tester that can measure AC/DC voltage, AC/DC current, resistance, continuity, diode, and non-contact AC voltage. It has a 3½ digit LCD display, a built-in flashlight, a double moulded housing, and a CATIII 1000V rating. It also has 200mA/500V resettable fused current inputs and overload protection on all ranges. In this article, we will show you how to use the Precision Gold Multimeter N73BZ for various measurements.
AC/DC Voltage Measurements
Turn the rotary switch to the V position for AC or DC voltage measurements.
Insert the red test lead into the VΩmA terminal and the black test lead into the COM terminal.
Connect the test leads to the circuit or device under test.
Read the voltage value on the display. The meter will automatically select the appropriate range and polarity.
If the input is not connected, the display will show "OL" indicating overrange.
AC/DC Current Measurements
Turn off power to the circuit or device under test and discharge any capacitors.
Turn the rotary switch to the A position for AC or DC current measurements.
Insert the red test lead into the µA/mA terminal for currents up to 200mA or into the 10A terminal for currents up to 10A. Insert the black test lead into the COM terminal.
Break the circuit and connect the test leads in series with the circuit or device under test.
Turn on power to the circuit or device under test and read the current value on the display. The meter will automatically select the appropriate range and polarity.
If the input is not connected or exceeds the selected range, the display will show "OL" indicating overrange.
Resistance Measurement
Turn off power to the circuit or device under test and discharge any capacitors.
Turn the rotary switch to the Ω position for resistance measurement.
Insert the red test lead into the VΩmA terminal and the black test lead into the COM terminal.
Connect the test leads across the resistor or circuit under test.
Read the resistance value on the display. The meter will automatically select the appropriate range.
If the input is not connected or exceeds 20MΩ, the display will show "OL" indicating overrange.
Continuity Check
Turn off power to the circuit or device under test and discharge any capacitors.
Turn the rotary switch to the position for continuity check.
Insert the red test lead into
Diode Test
Turn off power to the circuit or device under test and discharge any capacitors.
Turn the rotary switch to the position for diode test.
Insert the red test lead into the VΩmA terminal and the black test lead into the COM terminal.
Connect the test leads to the diode or circuit under test. Note the polarity of the test leads.
Read the diode voltage drop on the display. A good diode will show a voltage drop of 0.5V to 0.8V when forward biased and "OL" when reverse biased.
If the input is shorted or open, the display will show "OL" indicating overrange.
Non-Contact AC Voltage Detector
Turn the rotary switch to any position except OFF.
Press and hold the NCV button on the top of the meter. The NCV indicator will light up and a beep sound will be heard.
Move the top of the meter close to a live AC voltage source such as a power outlet, a wire, or a switch.
If AC voltage is detected, the NCV indicator will flash and the beep sound will be faster.
The sensitivity of the detector depends on the distance and orientation of the meter to the AC voltage source.
Release the NCV button to turn off the detector.
Battery and Fuse Replacement
Turn off the meter and disconnect any test leads from the terminals.
Remove the two screws on the back of the meter and open the battery compartment.
Replace the two 1.5V AAA batteries or the 0.2A/500V fast acting resettable fuse as needed. Observe the correct polarity and rating.
Close the battery compartment and secure it with the screws. aa16f39245