VP-ITC MicroCalorimeter User’s Manual
A Note About ITC Power Control
The main power for the VP-ITC cell unit is controlled by the VPViewer software application.
The presence or absence of power to the cell unit is indicated by the Power LED located on the
front panel of ITC cell. When the power to the cell unit is on, the LED will shine bright orange
and when the power to the cell unit is off, then the LED will also be off. In order for the cell unit
power to turn on, the cell must be plugged in, the power switch at the rear of the cell must be in
the on position, and VPViewer must be opened and running. Upon opening the VPViewer
application, it may take several seconds for the ITC cell power and the Power LED to come on.
Likewise, after closing VPViewer it will require a minute or so for the cell power and Power LED
to turn off.
When the VPViewer application is first opened it will go into an ‘Initialization’ state for less than
one minute, as will be indicated in the cell status. During the ‘Initialization’ state the VPVIewer
application is disabled and will not fully respond to mouse/keyboard events. As soon as the
‘Initialization’ state is over with, then the VPViewer application will become fully enabled and
the ITC injection system will be initialized as well.
The VP-ITC was designed to have its power on for extended periods of time. This will keep the
electronics at the normal operating temperature for better repeatability. It is recommended that
the power to the ITC cell unit be turned off during extended periods of down time, such as
holidays and vacations.
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