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CONTENTS
SAFETY 4
INTRODUCTION 6
CONNECTION TO LIQUID NITROGEN SUPPLY 7
INITIAL FILL WHEN USING LIQUID PHASE SETTINGS 7
DESCRIPTION OF LEVEL CONTROLLER COMPONENTS 8
CONTROLLER INSTALLATION 10
INITIAL SETTING UP 10
SYSTEM SETUP PROCEDURE 11
CLOCK SETTINGS - READJUSTMENT 17
NORMAL OPERATION 17
ALARM REPORTING 17
TESTING 18
SYSTEM FAULTS 19
DATA LOGGING 20
PRINTING THE DATA LOG 20
CLEARING THE DATA LOG 23
DATA RECOVERY 24
DOWNLOADING DATA TO A PC 24
TEMPERATURE RECORDER OUTPUT 24
SIMULTANEOUS FILLING 25
REMOTE ALARM CONNECTION 25
AUXILIARY RELAY 25
24V AC OUTPUT 25
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