BRUEL & KJAER 1615 - Page 22

POWER INPUT, AC
POWER
INPUT, DC
AC-DC SWITCH
FUSES
18
The normal mains input (AC) is connected by
means of the cable supplied. The transformer
tapping should be adjusted to suit the power
line voltage by means of the selector around
the AC fuse.
A
12 V DC supply can be connected (to the
two bottom pins) to the 12 V DC power
socket. The 12 V supply must deliver 1.5 A.
An accumulator is suitable for this purpose.
This switch should be up for AC, down for
DC operation.
There are separate fuses for AC and DC
supplies .
Operation AC-DC
Fig.3.2 Rear Panel.