HT61 - HT62
EN - 18
5.10. AC CURRENT MEASUREMENT
CAUTION
Maximum input AC current is 10A (input
10A
) or 600mA
(input
mA
A
). Do
not measure currents exceeding the limits given in this manual. Exceeding
voltage limits could result in electrical shocks to the user and damage to the
instrument.
Fig. 11: Use of the instrument for AC current measurement
1. Cut off power supply from the circuit to be measured.
2. Select position
A
,
mA
or
10AHz%
.
3. Press the
MODE
key to select
“
AC
”
measurement.
4. Insert the red cable into input terminal
10A
or into input terminal
mA
A
and the black
cable into input terminal
COM
.
5. Connect the red lead and the black lead in series to the circuit whose current you want
to measure, respecting polarity and current direction (see Fig. 11).
6. Supply the circuit to be measured. The display shows the value of current.
7. If the display shows the message
“
O.L
”
, the maximum measurable value has been
reached.
8. Press the
Hz%
key to select measurements
“
Hz
”
or
“
%
”
in order to display the values of
frequency and duty cycle of input current. The bargraph is not active in these functions.
9. To use the HOLD, RANGE, MAX MIN and REL functions, see § 4.2.
