Triplett 310 Manual de usuario descargar pdf (Pagina 14)

Scale Selection

Readings are taken on the scale having the appropri-

ate significant figures (both 3 and 300 volts are read

on the 0-300 scale) by multiplying or dividing by a

factor of 10 or 100 as indicated by the range/scale

ratio (i.e., on the 3 volt range, divide the scale read-

ings by 100). See Operation Chart on page 25.

Polarity Selection (Model 310-C only)

The Polarity Reversing Switch allows the user to elec-

trically reverse the test lead connections. That is, when

the user mistakenly connects the test leads to a cir-

cuit and obtains a “downscale” reading, the Polarity

Reversing Switch may be operated to obtain an “up-

scale” reading.

Changing Settings

The test probes should be disconnected from the volt-

age source (or the source shut off) before the Range

Switch or Polarity Reversing Switch (310-C only) po-

sition is changed. This practice will result in an in-

creased life and reliability for the tester, as well as es-

tablishing a good safety practice.

Zero Adjustment

The Meter Zero Adjust Screw is located near the cen-

ter of the tester. It should be periodically adjusted so

the meter pointer is on zero with no input into the

tester.

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Triplett 310 Manual de usuario Pagina 14