Prokit's Industries MT-3109 - Manual (Page 20)

MT-3109 AC/DC Digital Clamp Multimeter
 Hold the Meter tight and press the lever to open the
transformer jaw. Center the conductor within the transformer
jaws, 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
cause +1 .0% deviation based on the stated accuracy.
 Remove the transformer jaw.
 Press RELA to display zero.
 Repeat the above 1. procedure.
 The obtained reading will be more precise.
l. AC Current
Range Resolu
-tion Accuracy Frequency
Response
Overload
protection
40.00A 0.01A +(3%+8)
400.0A 0.1A +(3%+5) 50Hz ~
60Hz 400A
DC/AC
Warning
The operating temperature must be O ~40 when measuring ℃ ℃
current.
Remark:
 It may have 10 digits or less unstable or wrong digits, it will not
affect measurement result.
 Hold the Meter tight, do now release. The Hall components
are very sensitive 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. Follow the below procedure to
measure current will be more precise:
1. Hold the Meter tight and press the lever to open the
transformer jaw. Center the conductor within the
transformer jaws, 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 cause +1.0% deviation
based on the stated accuracy.
2. Remove the transformer jaw.
3. Press RELA to display zero.
4. Repeat the above 1. procedure.
5. The obtained reading will be more precise.
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