27
UT207A/208A/209A Operating Manual
F. DC/AC Current Measurement
(see figure 8)
Warning
The operating temperature must be 0
℃
~40
℃
when measuring current.
To measure current, do the following:
1. Set the rotary switch to 40A ,400A , or 1000A . DC mesaurement mode is
a default. Press
SELECT
to switch to AC measurement mode.
2. Hold the Meter tight, don’t release.
3. Press the lever to open the transformer jaw.
4. 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.
Note for DC measure:
● 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.
● When the Meter does not display 0 before measurement, press
ZERO
to
Summary of Contents for UT207A
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