AD Instruments
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©Copyright Abacanto Digital SA.
Manual de usuario AD300
17
7. Checking a speaker:
Speakers are general from 2 Ω to 16 Ω , use 20 Ω range or for higher
impedance speaker, use 200 Ω or 2k Ω range.
8. Checking a PA system:
For example on a PA system, using a 100V configuration
Z=V2 I P=1002 I P=10000I(10+50+200)=38.46
(1) If Z measured is lower, check for short circuited wires or faulty speakers
or transformers.
(2) If Z measured is higher, check for wiring or components (speakers,
transformers or connections).
