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Fluidized Calibration Bath Model 875 Iss.06 –09/13
CONTENTS
GUARANTEE.......................................................................................................................................................................................3
EMC INFORMATION ......................................................................................................................................................................... 4
ELECTRICAL SAFETY .........................................................................................................................................................................4
ENVIRONMENTAL RATINGS ........................................................................................................................................................4
CAUTIONARY NOTE......................................................................................................................................................................... 5
HEALTH AND SAFETY INSTRUCTIONS .......................................................................................................................................... 6
INTRODUCTION ............................................................................................................................................................................... 7
MAJOR FEATURES ..............................................................................................................................................................................8
SPECIFICATION ................................................................................................................................................................................. 9
THEORY OF OPERATION ...............................................................................................................................................................10
UNPACKING AND INITIAL INSPECTION .....................................................................................................................................11
ASSEMBLY ......................................................................................................................................................................................... 12
USING THE TEMPERATURE CONTROLLER .................................................................................................................................13
FRONT PANEL LAYOUT .............................................................................................................................................................13
The Temperature Controller.................................................................................................................................................... 13
Altering the Setpoint ................................................................................................................................................................. 13
ADVANCED CONTROLLER FEATURES.....................................................................................................................................13
Setpoint Ramp Rate................................................................................................................................................................... 13
Instrument Address................................................................................................................................................................... 14
Monitoring the Controller Status .............................................................................................................................................. 14
Units.......................................................................................................................................................................................... 14
DIAGNOSTIC ALARMS.................................................................................................................................................................15
Controller Error Messages........................................................................................................................................................ 15
INITIAL RUNNING ...........................................................................................................................................................................16
OPTIMISATION OF THE BATH'S PERFORMANCE ....................................................................................................................... 17
MAINTENANCE ...............................................................................................................................................................................18
AIR FLOW SETTINGS ....................................................................................................................................................................... 19
SAFETY FEATURES ........................................................................................................................................................................... 20
ACCURACY OF MEASUREMENT, FIXED POINT METHOD ........................................................................................................ 21
TOTAL ACCURACY OF MEASUREMENT ...................................................................................................................................... 21
USING THE PC INTERFACE ............................................................................................................................................................22
Connections .............................................................................................................................................................................. 22
CAL NOTEPAD................................................................................................................................................................................. 23
DEVELOPMENT ........................................................................................................................................................................... 23
HOW TO INSTALL CAL NOTEPAD ...........................................................................................................................................24
PROTOCOL ..................................................................................................................................................................................24
COMPARISON CALIBRATION ........................................................................................................................................................25
REALISING THE FOLLOWING FIXED POINTS: INDIUM, LEAD, ZINC, AND ALUMINIUM .................................................... 26
FREEZING THE TIN CELL ...............................................................................................................................................................27
Typical Melt/Freeze Sequence .................................................................................................................................................. 28
CELL HANDLING .............................................................................................................................................................................29
CELL KIT........................................................................................................................................................................................ 29
Cell Basket (Short) General Assembly ...................................................................................................................................... 30
Type B Optimal Cell Basket General Assembly ........................................................................................................................ 31
Type C Optimal Cell Basket General Assembly ....................................................................................................................... 32
FAULT FINDING...............................................................................................................................................................................33
Figure 1: Fluidised Bath Filter & Case General Arrangement ................................................................................................... 34
Figure 2: Fluidised Bath Air System........................................................................................................................................... 35
Figure 3: Fluidised Bath Equalising Block Handbook Assembly ................................................................................................ 36
Figure 4: Test of Equalising Block Assembly ............................................................................................................................. 37
Calibration Tube ....................................................................................................................................................................... 38
Front & Rear Elevation of 875 Fluidised Bath Cabinet.............................................................................................................. 39