UNI-T UT208A Operating Manual page 30

UT207A/208A/209A Operating Manual
zeroing.
● Center the conductor within the transformer jaw, then release the Meter
slowly until the transformer jaw is completely closed. Make sure the
conductor to be tested is placed at the center of the transformer jaw,
otherwise it will cuase ±1.0 % deviation.
● When measuring DC current, if the reading is positive, then the current
direction is from up to down (see figure 8: the front case face up while the
bottom case face down).
Below testnig method can obtain more accurate DC current:
● Power off the tested conductor current,
● Press the lever to open the transformer jaw.
● When the reading is stabled at the minimal, press ZERO to display zero
● Power on the tested conductor current, read out the reading after the Meter
is stable.
Note for AC measure
● Center the conductor within the transformer jaw, then release the Meter
slowly until the transformer jaw is completely closed. Make sure the
conductor to be tested is placed at the center of the transformer jaw,
otherwise it will cuase ±1.0 % deviation.
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