HT HT22D Manual De Instrucciones página 34

5.7. DC CURRENT MEASUREMENT
•
Maximum input DC current is 10A (input 10A) or
400mA
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
•
In the 10A range, do not carry out current
measurements for more than 30s to avoid damaging
the instrument and the test leads
1. Cut off power supply from the circuit to be measured.
"
2. Select positions
3. Press the MODE key to select
4. Insert the red cable into input terminal 10A or into input
terminal VmAAHz%
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. 8).
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. When symbol "-" appears on the instrument's display, it means
that current has the opposite direction with respect to the
connection in Fig. 8.
9. To use the HOLD, RANGE functions, see § 4.2
34
CAUTION
(input VmAAHz%
A
", "mA " or "10A
" "
DC measurement.
and the black cable into input
HT22D
). Do not
"