Chapter Two: Installation Dimensions
13
Warning
Follow your corporate policy for handling toxic or hazardous
gases. Your corporate policy on handling these gases
supersedes the instructions in this manual. MKS assumes no
liability for the safe handling of such materials.
• Install the 649 controller in a “flowing” system where gas is continually added and
evacuated
Do not use the controller in a “dead-ended” system (a system which cannot remove
excess pressure). The 649 controller is not designed to vent excess pressure to the
atmosphere.
• Verify that your pressure system can withstand pressure equal to the full scale range of
the pressure transducer
Your pressure system may be exposed to the full scale pressure since the 649 controller
will control over the entire full scale range of the pressure transducer. As a precaution,
you may choose to install a safety valve in your system to vent excess pressure.
Dimensions
Note
All dimensions are listed in inches with millimeters referenced in
parentheses.
Front and Back Views
The front of the 649 controller has an arrow to indicate the direction of gas flow through the unit.
The back of the unit has the serial number tag and the pinout for the 15-pin Type “D” connector.
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