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Operating Instructions - CPC3050
High-Speed Pressure Controller
CPC3050
5.4.2 Supply Port
The pressure supplied to the pressure connection labeled “Supply” should be approximately 10-20%
higher than the full scale of the highest pressure transducer installed in the controller or 10 psi, whichever
is greater.
5.4.3 Exhaust Port
The pressure connection labeled “Exhaust” is for the vacuum supply. In a gauge pressure version it can
be left open to atmospheric pressure.
5.4.4 Vent Port
The pressure connection labeled “Vent” is the exhaust port where the system pressure is vented to the
atmosphere under certain conditions. Leave this port open.
5.4.5 Measure/Control Port
The Measure/ Control port (when in the Control mode) supplies pressure that is precisely controlled by
the controller. In the Measure mode, a pressure applied to the Measure/Control port is measured by the
internal transducers.
5.4.6 Reference Port
The pressure connection labeled “Reference” is the reference port, it is available to connect to the refer-
ence side of the transducer. This port is normally left open to atmosphere but may be connected to a
stable reference pressure. In an absolute pressure transducer this port is not used.
5.4.7 Barometric Reference Port
The Barometric Reference port is connected to the optional internal barometer and should be left open to
atmospheric pressure.
5.5 Remote Communication Connections
See Section 7, Remote Operation, for connections and commands for operation over IEEE-488, Ether-
net, USB or RS-232 ports.
5.6 Power Up
Apply power to the power connector on the rear of the instrument using the power cord included, and
switch the power switch on the front of the unit ON. The instrument will go through an initialization pro-
cess and system check. As soon as the system check is completed the system will default to a screen
similar to the one shown in Section 6.1.2 - Display Screen Features. The main screen may be configured
in many different ways but initially it will be in a default configuration. Subsequently, the unit will power
up in the configuration that it was in when last powered off. Allow at least 15 minutes of warm up before
performing critical pressure measurements.
Do not position the equipment so that it is difficult to remove the power cord. The instrument
is not intended for connection of long-distance lines, i.e. lines within a building that are longer
than 30 m, or that leave the building (including lines of outdoor installations).