Wavetek XP Series, Руководство пользователя

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4
Measuring AC Voltage See Figure -2-
1. Set the Function Switch to
V
.
2. Select the desired RANGE (5XP only).
3. Connect the test leads: Red to
E
, Black to COM.
4. Connect the test probes to the circuit test points.
5. Read the display, and, if necessary, correct any overload (
0o
) conditions.
Preparing for Current Measurements
•
Turn off circuit power before connecting the test probes.
•
Allow the meter to cool between measurements, if current measurements
approach or exceeds 2 amps.
•
A warning tone sounds if you connect a test lead to a current input while a
current function is not selected.
•
Open circuit voltage at the measurement point must not exceed 1000 V.
•
Always measure current in series with the load. Never measure current across a
voltage source.
Measuring DC Current See Figure -3-
1. Set the Function Switch to a current function, µA, mA, or A.
2. Select the desired RANGE (5XP only).
3. Connect the test leads: Red to mA or A, Black to COM.
4. Turn off power to the circuit being measured.
5. Open the test circuit (
X
) to establish measurement points.
6. Connect the test probes in series with the load (to the measurement points).
7. Turn on power to the circuit being measured.
8. Read the display, and, if necessary, correct any overload (
0o
or
-0o
) conditions.
Measuring AC Current See Figure -4-
1. Set the Function Switch to a current function and range, µA, mA, or A.
2. Select the desired RANGE (5XP only).
3. Connect the test leads: Red to mA or A, Black to
COM.
4. Turn off power to the circuit being measured.
5. Open the test circuit (
X
) to establish measurement points.
6. Connect the test probes in series with the load (to the measurement points).
7. Turn on power to the circuit being measured.
8. Read the display, and, if necessary, correct any overload (
0o
) conditions.