Mettler Toledo LJ16 Spécifications télécharger pdf (Page 198)

METTLER TOLEDO

1900 Polaris Parkway

Columbus, Ohio 43240 USA

P/N: A15598500A

(12/99).00

METTLER TOLEDO®, Flexmount®, Flexmount HD™, Centerlign™, Ultramount™, Jaguar®, Lynx®, LynxBatch®, Panther®, Puma®, and DigiTOL are

trademarks of Mettler-Toledo, Inc.

Printed in USA

A15598500A

Sales & Customer Service:

Free Phone 0800 722 648

FreeFax: 0800 722 649

Phone: 09 262 1333

Email: [email protected]

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Handbook 1
Free Phone 0800 722 648 2
FreeFax: 0800 722 649 2
Phone: 09 262 1333 2
Email: [email protected] 2
Publication Revision History 3
INTRODUCTION 4
CHANGES WITHOUT NOTICE 4
Contents 6
Introduction 10
Weigh Module Applications 12
Conveyors 13
Mechanical Scale 14
Conversions 14
Lever Replacement 15
General Considerations 16
Static versus Dynamic 17
How Many Load Cells? 17
Field Calibration 17
Weighing System 18
Performance 18
Determining System 19
Accuracy and Repeatability 19
Calibration Errors 20
Linearity Errors 21
Hysteresis Errors 22
Repeatability Errors 22
What Kind of Accuracy Can 23
You Expect in the Real 23
(12/99) 3-9 24
Resolution 25
Industry Standards 26
International Standards 29
Environmental Considerations 32
Wind Force 33
Wind Loading 34
Alternative Method 35
Seismic Loading 36
Factors Based on UBC 37
Shock Loading 38
Vibration 40
Temperature Effects 40
Moisture and Corrosion 41
Lightning and Surge 42
Protection 42
Applying Force to Load 43
Angular Loading 44
Eccentric Loading 45
Side and End Loading 45
Tank and Vessel 46
Provisions for Test Weights 47
Structural Support 48
Guidelines 48
1/4” max 49
Weigh Module and Support 50
Beam Alignment 50
Stiffening Support 51
Structures 51
Structural Beam Support 52
Structural Support Guidelines 53
Tank Interaction 54
Additional Vessel 55
Restraint Methods 55
Safety Rods 56
Piping Design 57
Example Calculation 59
Piping Installation 60
Electrical Wiring 63
To Indicator 64
Home Run Cables 66
Top Plate 68
Base Plate 68
Load Cell 68
Load Pin 68
Hold-Down Bolt 68
Selecting Material 69
Weigh Module 70
Orientation 70
Flexmount HD Weigh Modules 75
SECTION A-A 81
General Procedure 86
Ultramount Weigh Modules 90
Installation 100
Tension Weigh Modules 104
Sizing Weigh Modules 105
(12/99) 11-7 110
Safety Wire Rope 110
Calibration 112
Indicators and Applications 114
Weighing Accuracy 115
Jaguar Indicator 116
Lynx Indicator 116
Panther Indicator 117
Puma Indicator 117
Applications 118
Field Bus 119
Processor PC Card I/0 120
I/0 I/0 I/0 120
Appendices 121
Appendix 2: Design 122
Qualification Form 122
Appendix 3: Weigh 123
Module Dimensions 123
BOTTOM VIEW OF TOP PLATE 124
Overload Gap 127
0.015 inch 127
CAUTION 129
Circular Tank with Four 130
Weigh Modules 130
Appendix 5: Load 132
Ratings per Weigh 132
Appendix 6: Flexmount 133
Top Plate Travel 133
Appendix 7: Load Cell 134
Deflection 134
1° 47' 135
Effective Thread 135
Straight Thread 136
Dimensions 136
Appendix 9: Junction 137
Box Dimensions and 137
Wiring Diagrams 137
WARNING 139
W1, W2, W3, and W4 must be ON 142
(shorting the pins) 142
Appendix 10: NEMA/IP 143
Enclosure Types 143
Appendix 11: 148
Engineering 148
Specifications 148
Flexmount HD Weigh 155
Centerlign Weigh Modules 159
Ultramount Weigh 164
Value Line Weigh Modules 172
Appendix 12: Chemical 181
Resistance Chart 181
(12/99)14-62 182
Chapter 14: Appendices 183
(12/99) 14-63 183
(12/99)14-64 184
(12/99) 14-65 185
(12/99)14-66 186
(12/99) 14-67 187
(12/99)14-68 188
(12/99) 14-69 189
(12/99)14-70 190
(12/99) 14-71 191
Glossary 192
Publication Suggestion Report 197
Printed in USA 198

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