Aalborg GFC - Manual (Page 3)

TABLE OF CONTENTS
1. UNPACKING THE GFC MASS FLOW CONTROLLER........................
1.1 Inspect Package for External Damage..............................................
1.2 Unpack the Mass Flow Controller.......................................................
1.3 Returning Merchandise for Repair.....................................................
2. INSTALLATION....................................................................
2.1 Primary Gas Connections.................................................................
2.2 Electrical Connections......................................................................
2.2.1 Valve Control Configuration...........................................
2.2.2 Remote LCD Readouts...................................................
2.2.3 Panel Mounting Readouts...............................................
3. PRINCIPLE OF OPERATION....................................................
4. SPECIFICATIONS..................................................................
4.1 CE Compliance................................................................................
4.2 Flow Capacities.................................................................................
5. OPERATING INSTRUCTIONS...................................................
5.1 Preparation and Warm Up................................................................
5.2 Flow Signal Output Readings..............................................................
5.3 Swamping Condition...........................................................................
5.4 Setpoint Reference Signal..................................................................
5.5 Valve OFF Control (Open Collector NPN Compatible)..........................
5.6 Valve Test/Purge.................................................................................
6. MAINTENANCE....................................................................
6.1 Introduction........................................................................................
6.2 Flow Path Cleaning..............................................................................
6.2.1 Cleaning the Inlet Filter Screen in GFC Models...............
6.2.2 Valve Maintenance for GFC17/37/47 Models.....................
7. CALIBRATION PROCEDURES....................................................
7.1 Flow Calibration...................................................................................
7.2 Calibration of GFC Mass Flow Controllers.......................................
7.2.1 Connections and Initial Warm Up...................................
7.2.2 Zero Adjustment.............................................................
7.2.3 SPAN Adjustment...........................................................
7.2.4 Linearity Adjustment......................................................
7.2.4.1 Disable Solenoid Valve in GFC17/37/47 Models..............
7.2.4.2 Open Motorized Valve in GFC57/67/77 Models...............
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