Triplett 630 - Introduction and General Instructions; General Operating Instructions

INTRODUCTION
The Model 630 is a compact, rugged, portable volt-ohm-
milliammeter. It has been designed to make fast, accurate measure-
ments on all types of electrical and electronic equipment and is
backed by a company which has been making quality instruments
and test equipment for over half a century.
GENERAL INSTRUCTIONS
The following section should be read carefully; it contains
instructions and precautions to be observed in making measurements
with the VOM.
• Measurements are made with the test leads plugged into the
COM— and У-0-А jacks, except when measuring output volts (DB),
6000 AC and 6000 DC volts. For these ranges the V-Q-A test lead
is plugged in the appropriate jack (one test lead is in the COM—
jack for all measurements).
• The alligator clips provided with the VOM fit over the end of the
test probes. When measuring high voltages, the use of these alligator
clips will allow measurement without handling the test probes. As a
safety measure, always shut off power source before attempting to
connect alligator clips.
• When the approximate value of the quantity being measured is
not known, always start on the highest range. For greatest accuracy,
choose the range which will allow readings to be taken in the upper
(right hand) portion of the scale.
е Readings are taken on the scale having the appropriate significant
figures (both 3 and 300 volts are read on the 0-300 scale) by
multiplying or dividing by a factor of 10 ог 100 as indicated by the
range/scale
ratio
(ie:
on
the
3
volt
range
divide
the
scale
readings
by 100).
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