Vac Control - Heidolph Intelligent Hei-VAC Control Operating Instructions Manual

Operation
Application example – cabinet dryer
Set Minimum to a vacuum value below boiling pressure and the
controller will switch the vacuum pump off, once the liquid has
completely evaporated.

Vac control

Control to a set vacuum value..
Parameter Meaning
Setting for lower vacuum level for 2-point control or precisely for
Set vacuum
VARIO® pump.
(mbar)
Adjustment range: Turbo*; 1–1060
Only for VMS or in-line valve with vacuum pump: control range for
Hysteresis
2-point control.
(mbar, Torr, hPa)
Adjustment range: Auto; 1–300
Setting for upper vacuum level. Once reached, control switches off.
Maximum
(mbar, Torr, hPa)
Adjustment range: Off; 1–1060
Presetting process runtime from Start on.
Duration (min)
Adjustment range: Off; 1–1440
Turbo mode: auto-adapting vacuum control for best ultimate vacuum. Best backing pressure
for operation with a turbomolecular pump.
Application example – filtration
Set the set vacuum higher than the boiling pressure of the liquid and set
Maximum value even a little bit higher. If the filter runs dry or if the filter
is fractured, the pressure will increase and the control will be stopped
automatically.
Hysteresis values Auto
Set vacuum
(mbar)
Hysteresis
(mbar)
5 10 50 80
2 2 5 8
100 200 500
9 17 40
85
700 900 1000
55 71 78