- 12 -
5. MEASURING.PROCEDURES
FOR AC
(2) AMMETER
AC ammeter is necessary .
An AC ammeter with a range that can be
changed according to the current rating of
a given generator is most desirable .
(About 10 A, 20 A, 100 A)
(3) FREQUENCY METER
Frequency range : About 45 to 65Hz
NOTE : Be careful of the frequency meter's
input voltage range.
FOR AC
5-1.MEASURING.INSTRUMENTS
(1) VOLTMETER
AC voltmeter is necessary .
The approximate AC voltage ranges of the
voltmeters to be used for various types of
generators are as follows :
0 to 150 V : Type with an output voltage of
110 or 120 V
0 to 300 V : Type with an output voltage of
220, 230 or 240 V
0 to 150 V, 0 to 330 V : Dual voltage type
