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A C L I N t V U L I A li b H A N l i t IN U IC A I U K
a ) INDICATES NOMINAL AC INPUT VOLTAGE (116 OR
> <
230 V) FROM WHICH INSTRUMENT MAY BE
B ) OPERATED.
©
POWER SOURCE SELECT SWITCH
OPERATES 305 FROM AC OR EXT DC POWER
SOURCE WITH FULL CHG APPLIED TO INTERNAL
BATTERIES.
©
OPERATES FROM AC OR EXT DC POWER SOURCE
WITH TRICKLE CHG APPLIED TO BATTERIES.
©
OPERATES 305 FROM INTERNAL BATTERY POWER
SOURCE
AC POWER SOURCE OPERATION
©
CHECK THAT THE AC LINE VOLTAGE RANGE
INDICATOR DISPLAYS THE NOMINAL AC LINE
VOLTAGE AVAILABLE I115 OR 230 V AC).
®
SET THE POWER SOURCE SELECT SWITCH TO AC,
FULL OR TRICKLE CHG.
W A R N I N G I
©
WHEN OPERATING FROM EXTERNAL DC OR
INTERNAL BATTERIES THE INSTRUMENT GROUND
CONNECTOR MUST BE CONNECTED TO A
PROTECTIVE EARTH GROUND.
©
©
SET THE POWER SOURCE SELECT SWITCH TO ONE
OF THE EXT DC POSITIONS.
APPLY EXTERNAL DC POWER SOURCE h 9 TO
♦ 32 V DC) TO THE BANANA JACK INPUT.
©
BATTERY POWER SOURCE OPERATION
SET THE POWER SOURCE SELECT SWITCH TO
BATTERY POSITION.
_________
IWUtiMM
’ C ti
U T M iU i
ocron<i«oti*cc
(2423 0712424 26
Figure 1 . D escrip tion o f pow er source operation.
REV A SEP 1979
305 Operators
3