Simpson 260-8P, Инструкция по эксплуатации, Страница: 17 / 32

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4.5.3 DC Voltage Measurement 0-2.5 Through 0-250V Range
a. Set the function switch at +DC (Figure
4-2).
b. Plug the black test lead into the -COM-
MON jack and the red test lead into
the + jack.
c. Set the range switch at one of the five
voltage range positions marked 2.5V,
10V, 25V, 50V or 250V.
NOTE: When in doubt as to the voltage
present, always use the highest voltage
range as a protection to the Instrument. If
the voltage is within a lower range, the
switch may be set for the lower range to
obtain a more accurate reading. Be sure
power is off in the circuit being measured
and all capacitors discharged.
d.
Connect the black test lead to the nega-
tive side of the circuit being measured
and the red test lead to the positive
side of the circuit.
e. Turn on the power in the circuit being
measured.
f. Read voltage on the black scale
marked DC. For the 2.5V range, use the 0-250 figures and divide by 100. For
the 10V, 50V, and 250V ranged, read the figures directly. For the 25V range,
use the 0-250 figures and divide by 10.
NOTE: Turn off power to the circuit and wait until the meter indicates zero before
disconnecting the test leads.
4.5.4 DC Voltage Measurement 0-500V Range
Use extreme care when working with high
voltage circuits. Do not touch the Instrument
or test leads while power is on in the circuit
being measured.
Before proceeding with the following steps,
review the Safety Precautions in Paragraph
4.1.
a. Set the function switch at +DC (Figure
4-3).
b. Set the range switch at the 250V/550V/
1000V Position.
c. Plug the black test lead into the -COM-
MON jack and the red test lead into the
500V jack.
d. Be sure power is off in the circuit being
measured and all capacitors dis-
!
D.
C.
D.C
.
2.5 V.
10 V.
1V.
25 V.
50 A.
AMPS.
250 V.
500 V.
I000 V.
+
COMMON
-
- D.C.
+ D.C.
260
ALL TERMINALS 1 V MAX
+10A
50 AMPS.
250 MV.
+
Figure 4-2. Jacks and Switch
Positions for Measuring DC
Voltages, 0-250V Range
Figure 4-3. Jacks and Switch
Positions for Measuring DC
Voltages, 0-500V Range
D.C
.
D.C
.
250 V.
500 V.
I000 V. COMMON
-
- D.C.
+ D.C.
260
ALL TERMINALS 1 V MAX
1000 V.
A.C. D.C.