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Installation, Operating & Maintenance Instructions
Series 612 DN 40-50 (I.D. 1.5“ - 2”), Logic
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
289419EB
2011-12-12
20/60
2.6.6 Logic interface connection
Refer to «Schematics» for wiring information.
2.6.7 Service
port
connection
The service port (connector: SERVICE) allows to connect the valve to a RS232 port of a computer.
This requires a service cable and software from VAT. You can either use our freeware 'Control View', which can be
downloaded from www.vatvalve.com or purchase our 'Control Performance Analyzer'.
Alternatively the VAT Service Box 2 can be connected to the service port for setup and local operation.
The service port is not galvanic isolated. Therefore we recommend using this only for setup, testing and maintenance and
not for permanent control.
Refer also to «Local Operation» for details and to «Spare parts / Accessories» for ordering numbers of service cable,
software and Service Box 2.
Connector: Use only screws with 4-40UNC thread for fastening the service port connector!
3 Operation
Valve opening
Fingers and objects must be kept out of the valve opening and away from moving
parts. Risk of injury.
Do not connect the controller to power before the valve isn’t installed complete into the
system.
3.1 Introduction
This valve is designed for downstream pressure control in vacuum chambers. It can be employed in a pressure control
mode or a position control mode.
In both cases local or remote operation is possible.