Using the Battery Option C
Keysight 53150A/151A/152A Operating Guide 127
Operating the Counter from a DC Power Source
Counters that have the Battery option can operate from an external DC power
source (with or without batteries in the Counter). The external DC power source
must supply +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, make sure the
Main ~ Power switch on the back panel is set to 1 (on), insert the coaxial plug into
the EXT DC socket on the back panel as shown in Figure C-2, and turn the
Counter on in the normal manner.
Figure C-2 External DC Power Socket
11 TO 18 VDC
EXT DC
Reference 10 MHz
In
or
Out
Auxillary
RS-232
Main ~ Power
External DC Input Connector
Main AC Power Indicator
WARNING:
To avold electric shock,
do not remove covers.
No user-serviceable parts inside.
Refer all servicing to qualified personnel.
OPTIONS
001 Oven Time Base
002 Battery
This unit must be earth grounded.
Made in U.S.A.
with domestic and foreign content
ISM 1-A
100 – 130 VAC, 50/60/400 Hz 75 VA
220 – 240 VAC, 50/60 Hz 75 VA 250 V
FUSE
1.0 A T
AC POWER
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