Vaisala DRYCAP DMT345, User Manual, Page: 93 / 157

Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 93
Using Buttons on Motherboard
Pressure set buttons ( P
chk
and P
set
) can be used to set the process
pressure.
0504-052
Figure 57 Pressure Set Buttons on Motherboard
Numbers refer to Figure 57 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 should be used if the value is changed frequently. Its
value is not retained at reset, and when set to 0, last value set with PRES
is used instead.
Syntax:
PRES [ aaaa.a ]
XPRES [ aaaa.a ]
where
aaaa.a = Absolute process pressure (hPa)