Simpson 160 User Manual

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1. Connect the black test lead into the COM (–) jack and the red test lead
into the +50 µ A +250 mV jack.
2. Set polarity switch to the + DC position.
3. Set the Range Selector Switch to the 50 µ A position (common to the 50
VDC position).
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 of the circuit.
5. Read the voltage on the black arc marked DC. Use the figures marked 0-
2.5 and multiply reading by 100 for the millivolt reading. If the pointer
moves to the left of zero, reverse the test lead connections, as the revers-
ing switch must be kept in the + DC position for this range.
4.4 Measuring DC Voltages, 1 V Range
1. Connect the black test lead to the COM (–) jack and the red test lead to
the + jack.
2. Set the polarity switch to the + DC position.
3. Set the range switch to the 1 VDC position (common to the 10 VDC posi-
tion).
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.
5. Read the voltage on the black arc marked DC. Use the figures 0-10 and
divide the reading by 10 to obtain voltage reading. If the pointer moves to
the left of zero, reversing switch must be kept in the +DC position for this
range.
4.5 Measuring DC Voltages, 2.5 Through 500 V Ranges
1. Connect the black test lead to the COM (–) jack and the red test lead to
the + jack.
2. Set the range switch for any of the five DC volts range positions desired.
These are marked 2.5, 10, 250, and 500 VDC. When in doubt as to which
range to use, always start with the higher voltage range as a protection
to the Instrument.
3. Connect the black lead to the negative (–) side of the circuit to be
measured and the red test lead to the positive (+) side of the circuit.
4. Set the polarity switch to the + DC position. Turn the power on in the
circuit to be tested. If the pointer deflects to the left of zero, the actual
circuit polarity is the reverse of that anticipated. In this case, turn off power
in the circuit to be tested, set the polarity switch to the – DC position and
turn power on again.
5. Read the voltage on the black arc marked DC which is second from the
top of the dial. If the voltage is within a lower range, the switch may be set
for a lower range to obtain a more accurate reading.
2.5 VDC range: Use the 0-2.5 scale and read the value directly.
10 and 50 VDC ranges: Read the corresponding scale directly.
250 VDC range: Use the 0-2.5 scale and multiply reading by 100.
500 VDC range: Use the 0-50 scale and multiply by 10.

Simpson 160 Specifications

General

Brand	Simpson
Model	160
Category	Measuring Instruments
Language	English