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Operating Instructions - CPC6050
Modular Pressure Controller
CPC6050
8.3 Single Supply
The Single Supply option has one source for pressure supply for both internal regulator modules of the
CPC6050. The single pressure supply is connected to the supply port of channel A and should be ad-
equate to support the pressure supply requirements of the highest transducer installed. The instrument
internally reduces this pressure supply to sustain the pressure on channel B using an additional turn
down regulator. The single supply option can be configured with a standard two channel instrument or an
auto ranging single output instrument.
Single Pressure Supply
Plugged port, do not remove
8.4 Barometric Reference (CPX-A-C5-3)
The CPC6050 can be ordered with a barometric reference transducer. It is a very stable, absolute pres-
sure transducer, used to accurately measure local atmospheric pressure. It is used to display the baro-
metric pressure (reading appears on the bottom right side of the display) or as a barometric reference for
gauge or absolute emulation.
8.4.1 Gauge Pressure Emulation
In the Home Application (main screen) an absolute transducer channel will indicate “Absolute” in the
Pressure Type button (this is the default mode). When the Pressure Type button is pressed the button la-
bel will toggle to “Gauge” and have a lighter background color. The lighter background color is an indica-
tion that the channel is in emulation mode.
In the gauge emulation mode the atmospheric pressure reading from the barometric reference transduc-
er is subtracted from the absolute pressure reading of the channel to emulate a gauge pressure.
The barometric reference transducer has six significant digits. If a very low pressure gauge transducer
is active and is used in absolute emulation, the combined output may appear quite noisy because of the
resolution of the barometric reference.
8.4.2 Absolute Pressure Emulation
In the Home Application (main screen) a gauge transducer channel will indicate “Gauge” in the Pressure
Type button (this is the default mode). When the Pressure Type button is pressed the button label will
toggle to “Absolute” and have a lighter button background color. The lighter background color is an indica-
tion that the channel is in emulation mode.
In the absolute emulation mode the atmospheric pressure reading from the barometric reference trans-
ducer is added to the gauge pressure reading of the active channel to emulate an absolute pressure.