Greenlee DM-60 A, Руководство пользователя, Страница: 67 / 83

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Measurement O peration
A. A C & DC Voltag e Measure me nt
Warning – To a void harms to yo u or damages to the Mete r from electric sho ck, please do not att empt to
measure voltages higher t han 1000 V / 750 V rms altho ugh r eadi ngs ma y be o btai ned.
AC Voltage M easu re ment
The AC voltage r anges are: 4 .000 V, 40.00 V, 400.0 V and 750.0 V. To me asur e A C Voltag e, conne ct the M eter as
follows:
7. Insert the red test lead into the
HzV
Ω
te r min al and the black test le ad into th e C O M ter minal.
8. Set the rot ary switch to Hz VV and pr ess BLU E button to sele ct AC measur e ment mod e.
9. Connect the test le ads a cross with the obj ect b eing me asured.
The me asured valu e shows on the display, which is e ffective v alue o f sine wave ( mean value r esponse) .
Note
l
In e ach range , the Meter has an input i mped anc e of 10M
Ω
. This loading e ffect can caus e measureme nt er rors in
high impedance circuits. I f the ci rcuit i mped ance is less than or equal to 10k
Ω
, the error is negligible (0.1% or
less).
l
When AC voltage measur e ment has been co mpleted , disconne ct the connection betw een the testing leads and the
circuit unde r t est.
Red Black