21
4.13 AC Voltage Measurement 0-1000V Range
Be extremely careful when working in high voltage circuits. Do not
handle the Instrument or test leads while the circuit being measured
is energized. OBSERVE ALL SAFETY PRECAUTIONS in paragraph
4.2 and in the instruction manual for the equipment being tested.
Do not attempt any voltage measurement which may exceed 1000
volts or the circuit-to-ground voltage of the Instrument, 1000 volts
maximum.
Be sure that the range switch is set to the 250V/500V/1000V range,
function switch to AC Volts Only position, and test leads connected
to common and 1000V jack. Do not touch the Instrument or test
leads while the power is on in the circuit being measured.
2.5 V.
10 V.
1V.
25 V.
50 A.
AMPS.
250 V.
500 V.
I000 V.
OUTPUT
350 VDC
MAX.
COMMON
-
A.C. VOLTS
ONLY
A.C
.
A.
C.
260
ALL TERMINALS 1 V MAX
+10
+8
+6
+4
+2
0
-2
-4
-6
-8
-10
10Hz 100Hz 1KHz 10KHz 100KHz 1MHz
FREQUENCY
2.5 VAC RANGE
10VAC RANGE
25/50 VAC RANGE
250 VAC RANGE
OUTPUT RANGES
FIGURE 4-8. Frequency Response Output
Ranges
FIGURE 4-9. Jacks and Switch
Positions for Output Measurements
Before proceeding with the following steps, review the Safety Precautions in Para-
graph 4.2.
a. Set the function switch at AC (Figure 4-7).
b. Set the range switch at 250V/500V/1000V position.
c. Plug the black test lead into the -COMMON jack and the red test lead in the
1000V jack.
d. Be sure the power is off in the circuit being measured and that all its capaci-
tors have been discharged.
e. Connect the test leads across the circuit voltage to be measured with the
black lead to the grounded side.
f. Turn on the power in the circuit being measured.
g. Read the voltage on the red scale marked AC. Use the 0-10 figures and
multiply by 100.
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