Racal Instruments 2151 Manual page 54

TABLE
4.14c
Device
Dependent Commands
(Continued)
Ref.
B9
-
Channel
A
Filter Control
Controls the
Channel
A
low-pass
filter.
'ON'
switches
in the
filter
and
'OFF' switches
it
out.
Ref.
BIO
-
Reference
Selection Control
Controls the
selection of either
the
CLKlO
reference or the
counter
reference.
'ON*
selects
CLKlO,
'OFF'
selects
the counter
reference.
Measurement
Control
Ref.
Bll- Hold
Selects
the
HOLD
mode, suspending
repetitive
measurements. The
reading
is
held
until
another
is
triggered
(see
*TRG
and MEAS?).
2151
OPS
A
157 1/DA