Totalize; Totalizing - Racal Instruments 9901 Maintenance Manual

TOTALIZE
3.
14
The
events
to
be counted
ore applied
to
the
'A' Input and,
after amplification
and
shaping, are coupled
to the input of the time base decades.
An
output
is
selected from an
appropriate time base decade by
depressing the relevant
*n'
push-button
This scaled output
is
coupled
to
the signal input of the main
gate.
3.15
A
command
level
from the
START
push-button opens
the
main
gate and
allows
Counting
to
commence;
the gate
is
closed by
a
command
from the
STOP
push-button.
Automatic
Start/Stop
can be arranged by applying
suitable control pulses
to the
'B'
Input
socket.
Totalizing
Fig. 3.6
9901 Vol. 2
3-7