HP 82479A Owner's Manual page 148

The SETUP Program
Conversion OYoHIT
N
Limit
test
1
OY-HI?
[Y]
Limit tuped Low Hiagh™
[L]
Limit point?
=< [ENDLINE
Hot ion BEEF
ENDLINE
Limit fest 2 OYoMHI7Y
[Y]
H
Limit point?
s& [ENDLINE
Flot ior BEEF
ENDL INE
9-24
No conversion subprogram is needed.
Although no limit tests were set for group 1, you are given
the option of setting limit tests for group 2. Two sets of
upper and lower limits are to be set for group 2; first the
alarm (beep) limits, then the control (actuator) limits. Press
to request the first limit test.
To set a lower limit, press [L}.
Set the lower alarm limit to 24°C. The program will
compare each reading with this limit.
The limit action menu appears. Just press ENDLINE to
select EEF as the action.
Now you can set a second limit test. Press [Y]
To set an upper limit, press [H).
Set the upper limit to 26°C.
The limit action menu appears. Just press to
select IBlzE-F as the action. The HP-71 will beep if the
temperature either rises above 26 °C or falls below 24°C.
Note that if the beep is not a satisfactory alarm, you could
use an actuator channel to trigger an external alarm bell
or other signal.