3900 Serial I/O
Page 27
Change Saturation Pressure Setpoint
PS=
Description
Changes the Saturation Pressure setpoint to a given value.
Prerequisites
None
Syntax
PS=
setpoint
Parameters
setpoint
The
setpoint
value is the Saturation Pressure, in current system units,
that the system should control at.
Remarks
Control Mode Changed
Sending
PS=
setpoint
also changes the control mode to Saturation
Pressure (mode 5). In this mode Frost Point, Dew Point, PPMv,
PPMw and RH setpoints vary as system temperatures and test pressure
change.
Data Returned
None. The only response is a carriage return/linefeed terminator.
Examples
The
PS=
setpoint
command is used to set the Saturation Pressure
setpoint to 121.4 psiA, assuming current system pressure units are set
to psi.
computer sends
PS=121.4
<CR>
3900 responds
<CR><LF>
The
<CR><LF>
response signifies completion of the command.
See Also
?PU, PU=
.