Ac And Dc Current Measurement - Wetekom EM-3201A Bedienungsanleitung

AC and DC Current Measurement

Important Notice!
• Never measure currents in circuits with a voltage over 250 V. There is a
high risk of injury to persons as well as damage to the unit.
• The unit can measure a maximum current of 10 A without risk of damage.
Never connect a voltage source directly to the current input sockets of the
unit. The 10 ampere measuring rang is not protected by a fuse. Be sure
not to measure circuits with over 10 ampere.
To measure the current, "break" the circuit to be measured and connect the
measurement cables in series to the circuit or load.
Measuring Procedure
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 measuring cable to the 10 A input (6) or the 2 A input
(7) and the black measuring cable to the COM input (8).
3. "Break" the circuit to be measured by disconnecting the circuit from
the power source. Then connect the measurement cables (in series)
to the load or circuit to be measured. Observe correct polarity for DC
current measurements (red to plus and black to minus).
4. Now the measured value can be read from the LCD display. If the
result is negative the minus symbol appears to the left of the displayed
value.
Note:
• If you are unsure of or cannot estimate the expected current, for safety
reasons always start with the measurement in the 10 A range.
• When the rotary switch (4) is set to the 10 A
appears in the display under the decimal place of the measured value.
This has technical reasons and is of no further meaning.
Taking Measurements
25
or A ~ position, a "20"