Tips For Making Precise Measurements - AEMC MR521 User Manual

Tips For Getting the Best Accuracy
The Models MR411 and MR521 are capable of measuring DC and low
frequency currents over a wide range. Here are some key considerations
for getting the most accuracy from your display instrument:
 When using the Models MR411 and MR521 with a DMM or other
meter, it is important to select the range that provides the best
resolution.
 Make sure that probe jaw mating surfaces are free of dust and
contamination.
 Beware of short-circuit currents. Large in-rush DC currents (which can
occur when power is first applied in a circuit) and large high-current
transients may cause varying degrees of residual readings. If in doubt
of a particular reading, remove the probe from the conductor under
test and check to see that the display device returns to zero. If not, it
will be necessary to rezero the probe.
AC/DC Current Probe Models MR411 & MR521
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