Simpson 2 Series - Page 16

Operating Instructions
D.C. VOLTAGE MEASUREMENTS, 0 — 1000 VOLTS
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Set the function switch оп the left hand side of the
front panel at +D.C.
Plug the black test lead into the COMMON - jack and
the red test lead into the * Jack.
Set the range selector switch in any of the five voltage
range positions. These are marked 2.5 V., 10 V., 50 V.,
250 V., and 1000 V. When in doubt as to the voltage
present, always use the highest voltage range as a
protection to the instrument. Observe the meter reading.
If the voltage is within a lower range, the switch may
be set for the lower range to obtain a more accurate
reading.
Connect the black test lead to the negative side of the
circuit to be measured and the red test lead to the
positive side of the circuit.
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 in the circuit which is being tested. Set the
function switch at D. C., and turn on the power again.
This will correct the polarity as applied to the meter.
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 100.
For the 10 V., 50 V., and 250 V. ranges, read the
figures directly on the scale.
For the 1000 V. range, use the 0—10 figures and
multiply by 100.