Soltec HM-102S User Manual

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7. MEASURING DECIBELS
Select the 500 & UP ACV range (if voltage is
unknown).
Connect the test leads as noted in paragraph 3.5 b
(above).
Turn on the power in the circuit 'to be measured.
. Connect the test leads across the circuit or com-
ponent where the voltage is to be measured.
. Read the dB scale. Adjust ranges "downward", if
appropriate, until the largest scale indication is
attained.
NOTE: The dB scale is calibrated to a reference
level of onemilliwatt into 6009 where OdB is
0.774V and read directly on the 2.5 VAC range.
For readings of greater than 10dB, greater voltage
ranges are required and. the dB values that are to
be “added" to the direct scale reading are exhibited
in a conversion table on the lower right hand corner
of the dial face.
Example: Using the 10 ACV range the total dB’s
measured would be the direct scale reading plus
12. On the 50 ACV range, plus 26, etc..
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Soltec HM-102S Specifications

General

Brand	Soltec
Model	HM-102S
Category	Measuring Instruments
Language	English