Operation; Making Measurements; Dc Measurement - AEMC MR410 User Manual

4.1
• Plug the probe into the display device (e.g., DMM, logger).
Note the polarity of the probe output banana plugs (red = positive [+],
black = negative [-]).
• Select the appropriate range on the display device.
Note that the probe's output is 1mV/A.
• Turn display device power on.
• Turn on the instrument. The Green LED should be on. If the Green
LED does not come on or goes off after a few minutes, it is necessary
to replace the battery (see "Battery Replacement" § 5.1.1).

4.1.1 DC Measurement

• Select the appropriate DC mV or V range on the DMM or measuring
instrument.
• "Zero" the probe - with the probe disconnected from test samples (no
conductor in probe jaw window), push in and turn the zero adjustment
knob to obtain a reading better than 0.5mV on the DMM.
• For best accuracy, especially on low-level measurement, it is recom-
mended that you zero the probe before each measurement.
• Clamp the probe around the conductor to be tested. The DMM or dis-
play device should now display the measured conductor current. A
positive reading indicates current flowing in the direction of the arrow
located on the side of the jaw. A negative reading indicates current flow
in the opposite direction of the arrow.
• Apply the conversion ratio (1mV/A) to get the value of the current.
(e.g. If the multimeter reading is 250mV
250A
12
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OPERATION

Making Measurements

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DC
AC/DC Current Probe Models MR410 and MR520
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CHAPTER 4
, the measured current is
DC
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