MEASUREMENT
For the safety operation keep and pay attention to the cautions and warnings stated in
this manual.
A
△
！
E
A
WARNING
3B
POSSIBLE ELECTRICAL SHOCK
●
This instrument is for the use of low voltage circuit.
Do not make measurements of power lines carrying more than AC 600V.
Before use, check and confirm the voltage of circuit to be measured.
U
POSSIBLE ELECTRICAL SHOCK OR ACCIDENT
●
Do not handle the instrument in the rain, at humid place, with a drop of water
and or with wet hands.
●
Do not use the instrument if the CT or CT case are damaged and if something is
wrong with the CT cables.
●
Do not use the instrument, leaving the battery cover off.
●
If excessive current is applied to the CT, the instrument will be heated and
damaged. Do not apply more than 50Arms to the CT part.
●
Do not apply more than AC500V to the voltage input terminals.
※
Note : At Ior range, the display may not become “0” in case of the input ”0” but
it is not defect or abnormal.
(1) Line Current Measurement
1)
Press POWER switch once. All display lightens
and the range becomes Io current measurement
(range is auto).
2)
Set Frequency Switch according to the circuit
to be measured.
3)
Open clamp jaw and clamp ZCT to the conductor
to be measured and close CT completely.
4)
Read the displayed value (in case of over range,
「ＯＬ」
mark on display).
In the place where hardly can read the display,
use data hold function.
Conductor to be
measured
