Chapter 4 ________________________________________________________________ Operation
VAISALA ______________________________________________________________________ 107
Using Buttons on the Motherboard
Pressure set buttons (P
chk
and P
set
) can be used to set the process pressure.
0504-052
Figure 66
Pressure Set Buttons on the Motherboard
The numbers refer to Figure 66 above:
1
=
Pressure set button
2 = Pressure
check
button
Press check button (P
chk
) and a red led will flash the current pressure
setting in bar
a
.
Press the set button (P
set
) to set the pressure value. The number of presses
equals the number of bar
a
to be set (for example, three presses = three
bar
a
). After a few seconds, the red led will confirm the setting by flashing
the new pressure value.
Using Serial Line
XPRES and PRES
Command
XPRES
must be used if the value is changed frequently (for
example, by an automatic system that updates the value). Its value is not
retained at reset, and when set to 0; last value set with
PRES
is used
instead. Use the serial line and do the following:
PRES
[
aaaa.a
]<cr>
XPRES
[
aaaa.a
]<cr>
where
aaaa.a = Absolute process pressure (hPa)
