Measurement Operat Ion; Dc And Ac V Olt Age Measurem Ent - Digimaster DM-58 A Manual De Uso

Measurement Operat ion

A. DC and AC V oltage Mea sure ment
Warning – To a void h arm to you or da mages to the Me ter from elec tric sho ck, pl ea se do not
att e mpt to mea sure voltag e s higher th an 1 00 0 V although reading s may be obtained.
The DC Vo lta ge r an g es are: 200mV, 2V, 20 V, 2 00 V a nd 100 0V.
The AC Volta ge rang es a re: 2 V, 2 0V, 20 0V and 1 00 0V.
To measure DC or AC V olta g e, con nect the Meter as follo ws:
Insert the r ed test le a d into th e HzV Ω
7.
COM inp ut ter min al.
8. Se th e r otary switch to a n app ro pri ate measur em ent p ositi on i n V
9. Con nect the test lea ds acr oss with th e o bj ect to be me asu red.
The meas ur ed v al ue sho ws on th e dis pl ay
Note
If the v alue of v oltage to be me asu red is u nkno wn, us e th e maxim um meas ur ement positi o n (1 00 0 V)
l
and reduce the ran ge ste p by step u ntil a satisf actory read in g is o btai ned.
The LCD d ispl ay s "1" i ndicating the existi ng s elected rang e is ov erloa de d, it is re quir ed to select a hi gh er
l
ran g e in ord er to obt ain a cor rect rea ding.
In each ra n ge, the Met er h as a n in put im p ed anc e of app rox. 10 MΩ. This l o adi ng eff ect can cause
l
measur ement err ors i n hi gh impe da nce c ircu its. If the circuit imp e da nce is l ess th an or eq ua l to 1 0 Ω , the
err or is n egli gib le ( 0.1% o r less).
When D C v olta ge measureme nt h as b een c om plet ed, disco nnect th e c on necti on b etwe en the testing
l
lea ds a nd th e circuit und er test.
black
(DM58B ) or V Ω
(DM58 A/) a nd the black test lead into the
red
or V range.
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