The DIGIVAC Model 215 measures vacuum through 7 decades of pressure from 1 milliTorr all the way up 760
Torr as the model 200 does. When purchased with the optional VLC control, the Model 215 VLC
controls a vacuum level at a particular set point between 30 milliTorr and 2000 milliTorr. This
vacuum level controller works on the principal of regulating the bleed of a vacuum vessel to
atmosphere much like the way many freeze dryers do. The VLC option also has PID
variables to enable the user to adjust the nature of the control. This unit comes with an
optional Ethernet or RS232 command set that will allow the user to remotely monitor and
control the unit. The unit has been tested on vessels from .5 gallons through 10 gallons with
minimal PID tuning required. This controller builds on the base of our thermocouple
vacuum technology and OEM experience to provide a simple low cost product to regulate
vacuum in a vessel. The unit has optional analog recorder output, RS232 connectivity,
Ethernet, and 1 or 2 SPDT relays. This unit takes the manual work out of precision lab work.
It is intuitive to use, requires a very simple setup that make it easy to control a process or
perform precision experimentation.