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Operating Instructions - CPC6050
Modular Pressure Controller
CPC6050
5.4.2 Supply Port
The pressure supplied to the pressure connection labeled “Supply” should be approximately 10% higher
than the full scale of the highest pressure transducer installed in the controller channel or 10 psi, which-
ever is greater. With a Pump Module, supply pressure is turned off for primary transducers with pressure
ranges less than 3 psi. Supply pressure to a Pump Module is only necessary if it is called for to increase
the control speed. In this mode, a Pump Module will use the supply pressure to quickly control close to
the set point before the internal pump takes over and ramps into the set point with precision.
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 port where the system pressure is vented to the atmo-
sphere under certain conditions. Leave this port as is.
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 reference port is available on gauge units that have transducers that are not sealed gauge units. For
these units this port is available to connect to the reference 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 adaptor 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 measurement 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).