Taking Measurements; Current Measurement Ac/Dc - Wetekom 90 45 16 Bedienungsanleitung

Current Measurement AC/DC

Important!
Do not undertake current measurements in circuitry, if the
voltage is higher than 250 V AC or DC. There is high risk of
injury for human and risk of equipment damage.
The unit can measure a maximum current of 10 A without risk
of damage. Never connect any voltage source directly to the
current input sockets of the unit. The 10 ampere measuring
range is not fuse protected. Be sure not to measure circuits
having more than 10 ampere.
To measure the current, "break" the circuit to be measured and
connect the test leads in series to the circuit or load.
1. Set the rotary switch (4) to the 10 A, 2 A, 200 mA, 20 mA,
2 mA, 200 µA or 20 µA position (AC or DC).
2. Connect the red test lead to the 10 A input (5) or to the 2 A
input (5) and the black test lead to the COM input (7).
3. "Break" the circuit to be measured by disconnecting the circuit
from the power source. Then connect the test leads (in series)
to the load or circuit to be measured. Observe the proper po-
larity for DC current measurements (red to plus and black to
minus).
4. Now you can read the result from the LCD display. If the result
is negative, the minus symbol appears left to the displayed
value.
Notes:
If you are uncertain of or cannot estimate the expected current,
for safety reasons always start measuring in the 10 A range.
When the rotary switch (4) is set to the 10 A
tion, a "20" appears on the display under the decimal place of
the measured value. This has technical reasons and is of no
further meaning.

Taking Measurements

30
or A ~ posi-