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Operating Instructions - CPC3050
High-Speed Pressure Controller
CPC3050
6.4.1.7 Operating Mode Selection
The operating modes are permanently displayed on bottom of the Home App. The CPC3050 has three
operating modes: Measure, Control and Vent. After the system has switched on, the instrument will au-
tomatically be placed in Vent mode. The user can switch from one mode to the other by using the mode
selection keys
i
Notice
When switching from Control mode to Measure mode, the system will not be vented and the
last applied pressure will be locked in the system by means of a solenoid valve.
Measure Mode:
In Measure mode the CPC3050 acts like a precision pressure measuring instrument
and measures the pressure applied at the Measure/Control port. If the Control mode was the last used
mode before switching into Measure mode, the last controlled pressure is held in the test assembly.
Control Mode:
In Control mode the CPC3050 provides a controlled pressure at the Measure/Control
port equal to the setpoint value. It is activated by pressing the Control button. In order to ensure smooth
operation in the control mode, following measures must be taken and respective parameters must be set.
• In order to control pressures close to or below atmospheric pressure, a vacuum pump should be con-
nected to the Exhaust port
• Control limits can be set in the Control Settings App [
].
Vent Mode:
The Vent function will vent the system to the atmosphere, including the test assembly con-
nected to the Measure/ Control port. The Vent mode can be activated from the Measure or Control mode
by pressing the Vent button. The vent rate can be set in the Control Settings App [
].
Warning
!
WARNING! Venting will cause a loss of pressure in the system and the plumbing con-
nected to the Measure/Control port. Care must be taken that the device under test is not
damaged during venting.
