not display zero. When the testing current is greater than
400A
, it is not
necessary to zero.
Hold the Meter tight, don’t release. The Hall components are very senstive not
only to the magnet but also to heat and machines reaction force. Any shock will
cause the changing in reading in the short time.
Press the lever to open the transformer jaw.
Center the conductor within the transformer jaw, then release the Meter slowly
until the trasnformer jaw is completely closed, Make sure the conductor to be
tested is placed at the center of the transformer jaw, otherwise it will casue
deviation. The Meter can only measure one conductor at a time, to meausre
more than one condutor at a time will cause deviation.
4.
5.
6.
Below testnig method can obtain more accurate DC current:
Power off the tested conductor current,
Press the lever to open the transformer jaw.
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 the reading is stabled at the minimal, press
ZERO
to display zero
1.
2.
3.
4.
Model UT209: OPERATING MANUAL
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