Simpson 2 Series - Page 18

Operating Instructions
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20 270 ON
CONTACTS AND SWITCH POSITIONS FOR A.C. VOLTS
MEASURING A.C. VOLTAGES TO 1000 VOLTS
The Simpson Volt-Ohm-Milliammeter Model 270 Series 2
measures A.C. voltage in terms of the R.M.S. value of a
sine wave. This is accomplished by using two germanium
diodes in a modified full wave bridge circuit.
The Model 270 Series 2 has been especially designed to
give a wide frequency response, making it useful over a
range from 20 cycles per second to 200,000 cycles per
second. The curve which follows shows the response of
the 2.5, 10, and 50 volt ranges.
l. Set the function switch at A.C.
2. Set the range selector switch in any of the five voltage
range positions, marked 2.5 V., 10 V., 50 V., 250 V.,
and 1000 V. When in doubt as to the voltage present,
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