C
Using the Battery Option
294
Keysight 53147A/148A/149A Operating and Programming Guide
Operating the Instrument from a DC Power Source
Instruments that have the Battery option can operate from an external DC power
source (with or without batteries in the instrument). The external DC power source
must 11 to +18 VDC at 2.0 A (min.). It must use a 2.1 mm coaxial plug, and
its DC output plug must be wired so the inner connector is positive and the outer
connector is negative. To use an external DC power source, disconnect the AC
power cord, make sure the
Battery
switch on the back panel is set to 0 (off), insert
the coaxial plug into the
EXT DC
connector on the back panel (see
and turn the instrument on by setting the Battery switch to
1
and then pressing
the
POWER
button on the front panel in the normal manner.
Figure C-2
External DC Power Connector
OPTIONS
001 Oven Time Base
002 Battery
Main Power
!
!
In or Out
Reference 10 MHz
Auxiliary
AC POWER
90-130 VAC 50/60/400 Hz
190-230 VAC 50/60 Hz
FUSE
1.0 A
250V
WARNING:
To avoid electrical shock:
Do not remove covers.
No user serviceable parts inside.
Refer all servicing to qualified personnel.
RS-
232
GPIB
Counter/ Power Meter/ DVM
This unit must be earth grounded.
Made in U.S.A.
of domestic and foreign content
BATTERY PACK
Made in U.S.A.
of domestic and foreign content
Battery
Battery
Charging
EXT DC
+
11 to 18 VDC
External DC Input Connector
Charging
Indicator
Содержание 53147A
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