HP 5890 Series II, Reference Manual, Page: 76 / 244

Signal Output
Signal attenuation
76
Note that if
RANGE 2
!
( )
or
ATTN 2
!
( )
is pressed without first pressing
SIG 1
or
SIG 2
, SIGNAL 1 channel is assumed (and displayed). If
desired,
SIG 2
can then be pressed to display the same function for the
SIGNAL 2
channel.
Entering
RANGE 2
!
( )
/
ATTN 2
!
( )
setpoints
A new setpoint value is entered for either
RANGE 2
!
( )
or
ATTN 2
!
( )
using
the key sequence:
SIG 1
(or
SIG 2
)
RANGE 2
!
( )
(or
ATTN 2
!
( )
) Numeric Value
ENTER
Once channel and function are displayed, appropriate keys for the new
value are pressed, followed by
ENTER
to terminate the entry.
Switching off the +1 mV output
The +1 mV signal output can be switched off , providing no signal to the
data•receivingdevice. This is often useful in setting the zero position at a
connected strip chart recorder.
This is done through the following key sequence:
SIG 1
( or
SIG 2
)
ATTN 2
!
( )
OFF
The third example display in Figure 5•4is typical after pressing
OFF
.
After setting the pen to the desired
zero
position at the connected chart
recorder, the current attenuation value is restored by pressing
ON
.
Entering a new
ATTN 2
!
( )
value overrides OFF
.