Nor-Cal Intellisys Adaptive Pressure Controllers - Manual (Page 4)

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1.0 - Introduction
Thank you for purchasing a new Intellisys™ adaptive downstream pressure controller (APC) from Nor-Cal Products. Before installing and operating the product,
please read this manual thoroughly as it contains critical hook-up and operating tips. If you encounter any problems, or if you have any questions, please contact
our Intellisys Customer Service Support at 800-824-4166, ext. 186 or visit our web site at
www.n-c.com .
Nor-Cal Products’ APCs are designed for downstream pressure control over a wide range of vacuum control applications. The APC is a self-contained unit that
incorporates all control electronics and associated pressure control software. APCs are available in different models. Line voltage and low voltage buried box
versions connect to the valve via a valve cable. IQA and IQD controllers are already mounted on the valve. Any APC, regardless of type, accepts the inputs from
one or two pressure gauges as well as communications to the host controller, thus making it the heart of a pressure control loop.
Limited local operation is possible on some models via the on valve open/close switches. Other models offer full programmability and operation via a front panel
display and interface. Local status lights also help the operator during operation, maintenance or troubleshooting. Remote operation or monitoring can be
effected either through the serial RS-232, Analog/TTL and in some cases the DeviceNet communication interfaces.
NOTE: Calls attention to helpful tips about proper
installation, maintenance or use of the controller.
CAUTION: Highlights areas of concern that, if overlooked, could
result in damage to the controller or surrounding equipment.
WARNING: Alerts the installation, operating or maintenance
personnel of hazardous aspects of the controller, which, if
ignored could result in serious personal injury or death.
Important Personnel Safety and Product Protection Information
Throughout this manual, information that is of particular importance to the installation, the safety of oper-
ating personnel and the protection of equipment are highlighted by the following three symbols.
The
WARNING symbol is also used on the equipment wherever necessary.