SICK MLG-2 WebChecker

Contents
1 About this document........................................................................ 7
1.1 Purpose of this document........................................................................ 7
1.2 Scope......................................................................................................... 7
1.3 Target group.............................................................................................. 7
1.4 Information depth..................................................................................... 7
1.5 Symbols used............................................................................................ 7
1.6 Abbreviations used................................................................................... 8
2 Safety information............................................................................ 9
2.1 Requirements for the qualification of personnel.................................... 9
2.2 Intended use............................................................................................. 9
2.3 General safety notes................................................................................ 10
3 Product description........................................................................... 11
3.1 Type labels of the MLG-2 WebChecker.................................................... 11
3.2 Type code.................................................................................................. 13
3.2.1 Measurement field width........................................................ 14
3.2.2 Switching outputs of the MLG-2 WebChecker....................... 15
3.2.3 Optical properties.................................................................... 15
3.3 Structure and function............................................................................. 16
3.3.1 Device components................................................................. 16
3.3.2 Measurement principle........................................................... 17
3.4 Definitions................................................................................................. 18
3.5 Scan time.................................................................................................. 19
3.6 Operating reserve..................................................................................... 19
3.7 Minimum object attenuation................................................................... 20
3.8 Display and operating elements.............................................................. 20
3.8.1 MLG-2 WebChecker with fieldbus interface........................... 20
3.8.2 Fieldbus module...................................................................... 21
3.9 Inputs......................................................................................................... 23
3.9.1 Switching inputs on the receiver............................................. 23
3.9.2 Test input on the sender......................................................... 23
3.10 Application examples............................................................................... 23
3.10.1 Application examples for the MLG-2 WebChecker................ 23
4 Planning.............................................................................................. 25
4.1 Planning mounting distance between sender and receiver.................. 25
4.2 Identifying optimal object position.......................................................... 26
4.3 Determining measurement accuracy for actual object position............ 27
4.4 Required minimum distances for an object............................................ 28
4.5 Required minimum distances for several objects.................................. 29
4.6 Minimum and maximum object width..................................................... 29
4.7 Edge measurement and edge designation............................................. 30
4.8 Functions: Calculation of width and center positions............................ 32
CONTENTS
8025190/2020-01-13 | SICK O P E R A T I N G I N S T R U C T I O N S | MLG-2 WebChecker
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Subject to change without notice