Automatic Mode; Switching The Test Voltage; Resistance Measurement Mω (2-Wire) - AEMC 6471 User Manual

VOLTAGE CHECK: The tester first checks for possible interference. If there
is an external voltage of more than 42V, the warning triangle
displayed. If measurements are being performed in AUTO mode and a
disturbance frequency is detected, the tester will automatically look for a
frequency that is different from the default 128Hz.

5.1 Switching the Test Voltage

Available in all functions except mΩ and 2 Clamp.
If necessary, the test voltages can be switched to either 16 or 32V as follows:
• Press the Hz/OPTIONS button, then press it again to make the output volt-
age (Uout) blink.
• Use the ► button to switch to 16 or 32V, then press Hz/OPTIONS again.
This setting is retained when the unit is turned off.
5.2 Resistance Measurement mΩ (2-Wire)
WARNING: Before performing the resistance test, verify that the sample
under test is not energized.
1.
Set the switch to
2. Connect the resistance to terminals H (Z) and E (X).
Ground Resistance Tester Model 6471
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CHAPTER 5

AUTOMATIC MODE

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