Simpson 260 - Page 17

OPERATING INSTRUCTICNS
D.C. VOLTAGE RANGES ТО 1000V.
l. Set the function switch on the left hand side
of the front panel at +D.C.
2. Plug the black test lead into the СОММОК-јаск
and the red test lead into the + jack.
Set the range selector switch in any of the
five voltage range positions. These are mark-
ed 2.57., 10V., 50V.; 250V «s and 1COOV. When
in doubt as to the voltage present, always
select the highest voltage range as a prctect-
ion to the instrument.
4. Connect the black test lead to the negative
side of the circuit to be measured and the
red test lead to the positive side.
Б Turn on the power in the circuit to be tested.
If the pointer deflects to the left of zero,
the anticipated polarity is opposite the actual
circuit polarity. Turn off the power, set the
function switch at -D.C., and turn on the power
again. This will correct the polarity.
6. Observe the meter reading. If the voltage can
be measured on a lower range, the switch may
be set to select this range to obtain a more
accurate reading. Read the voltage on the
black arc marked D.C. which is second from the
top of the dial.
For the 2.5 V. range use the 0-250 figures
and divide by 10C.
For the 10 V., 50 Ve, and 250 V. ranges
read the figures directly from the scale.
For the 1000 V. range use the 0-10 figures
and multiply by 10C.
7. Turn off the power in the circuit which is be-
ing measured before disconnecting meter leads.
19%)
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