Use; Voltage Measurement; Current Measurement; Resistance, Diode, And Continuity Measurements - Multimetrix DMM53 Manual Del Usuario

2.1. VOLTAGE MEASUREMENT

„ Connect the red lead to the + terminal and the black lead to the COM terminal.
„ Set the switch to V.
„ Place the probe tips on the element to be tested, starting with the black probe tip, and maintain firm contact.
„ The voltage is displayed.
„ At the end of the measurement, disconnect the + terminal first, then the COM terminal.
The SLT key is used to choose to display the AC voltage only or the DC voltage only. To measure a DC
voltage, first check that the AC voltage is zero.

2.2. CURRENT MEASUREMENT

Before each current measurement, check the fuses.
„ Short-circuit the + and 10A terminals and make a continuity measurement. If the result is 0, the fuse in
the 10A terminal is OK. If the result is OL, the fuse (F2) must be replaced.
„ Measure a known current (<400mA) between the + and COM terminals. If the result is 0, the fuse (F1)
must be replaced.
To make a current measurement:
„ Cut off power to the device to be tested and discharge all high-voltage capacitors.
„ Set the switch to A, mA or µA, depending on the value of the current to be measured.
„ Connect the red lead to the 10A terminal or to the + terminal and the black lead to the COM terminal.
„ Place the test probes on the element to be tested and maintain a firm contact.
„ Power up the device to be tested and read the measurement.

2.3. RESISTANCE, DIODE, AND CONTINUITY MEASUREMENTS

„ Connect the red lead to the + terminal and the black lead to the COM terminal
„ Set the switch to Ω
„ Cut off power to the device to be tested and discharge all high-voltage capacitors.
„ Use the SLT key to select the desired function: Ω,
„ Place the test probes on the element to be tested and maintain a firm contact. For diode voltage
measurements, place the red probe tip on the cathode and the black probe tip on the anode.
„ The measurement is displayed.
For low resistance measurements, measure the resistance of the leads by short-circuiting the probe
tips. Subtract the value so found from the low resistance measurements.

2.4. CAPACITANCE MEASUREMENT

„ Connect the red lead to the + terminal and the black lead to the COM terminal
„ Set the switch to
„ Cut off power to the device to be tested and discharge all high-voltage capacitors.
„ Place the test probes on the element to be tested and maintain a firm contact.
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2. USE

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