5
1.
INTRODUCTION
1.1
General
The Simpson 160 Volt-Ohm-Milliammeter (hereafter referred to as the 160 or
the Instrument) is a compact, easy-to-operate instrument used for measuring
electrical characteristics of circuits and circuit components. The Instrument
has a taut-band movement suspension with diode overload protection to pro-
vide long, trouble-free service. The 100 degree mirrored dial arc and knife
edge pointer provide excellent readability and eliminate parallax errors.
A polarity-reversing switch and a one-knob Function/Range selector simplify
operation of the Instrument. The internal batteries are easily obtained and
replaced.
Most of the component parts are mounted on a printed circuit board. This
helps ensure uniform performance, reduces maintenance and extends the
useful life of the Instrument.
1.2
Supplies &
Accessories
All supplies and accessories required for the operation of the 160 are fur-
nished with each Instrument and listed in Table 1-2.
1.3
Safety
Considerations
This Operator’s Manual contains cautions and warnings alerting the user to
hazardous operating and service conditions. CAUTION or WARNING sym-
bols are placed throughout this publication, where applicable, and are de-
fined on the inside cover of the manual under the heading SAFETY SYM-
BOLS. Adherence to these instructions will help ensure safety of operating
and servicing personnel and protect the instrument.
1
.4
Technical
Data
Table
1-1.
Technical
Data
DC
Volt
s
Ranges: 2.5, 10, 50, 250V; 0.25, 1.0 and 1000V on sepa-
rate jacks.
Sensitivity: 20,000 per volt
Rated Accuracy: Within 2% DC and 3% AC of full scale on all
ranges.
Ranges: 2.5, 20, 50, 250, 500V; 1,000V on
separate jack.
Sensitivity: 5,000 per volt.
Indication: Full-wave average-responding: calibrated in RMS
for sinusoidal waveforms.
* Frequency Response: Rated accuracy to 100,000 Hz on all ranges
through 50V; to 20 kHz on 250V range. 2-A.
**
Rated
Circuit-
To-G
r
ound
Volt
a
g
e
:
1,000V AC/DC max.
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