Operator`s manual

VirTis BenchTop 2K, 4K and 6K Sentry 2.0 Controls

Revision 004, 12/09 19

Vacuum Value

To adjust the Vacuum value, open the condenser door and adjust the trim pot located

on the main Sentry 2.0 module within the electrical box. Set the value to 760 Torr, or

current atmospheric pressure. Turn the trim pot clockwise to increases the pressure or

counter-clockwise to decrease the pressure.

Once the rough vacuum has been set, connect a reference tube. Adjust the Vacuum

value located on the LCD screen up to increase the Vacuum reading. Adjust the

Vacuum value down to decrease the Vacuum reading.

Note: SP Industries recommends the use of a Varian Vacuum Reference Tube for vacuum

calibration.

PRACTICAL OPERATING TIP. ENSURE THAT THE GROUND WIRE IS FIRMLY CONNECTED BEFORE

CALIBRATING ANY VALUES. A LOOSE GROUND WIRE CAN PRODUCE INCONSISTENT AND

UNPREDICTABLE RESULTS.