NDC BETA LaserMike LaserSpeed Pro 8500-4 manual 

LaserSpeed Pro 8500-4
Length and Speed Measurement
Instruction Handbook
NDC Technologies
8001 Technology Blvd.
Dayton, Ohio 45424
U.S.A.
© 2018 NDC Technologies
NDC Technologies
Dayton, Ohio 45424
© 2017 NDC TechnologiesNDC
Technologies
Main Phone [phone]
General Fax [phone]
www.betalasermike.com
Making Light Work
ment

Proprietary Notice
The information and design disclosed herein were originated by and are the property of NDC Technologies.
NDC Technologies reserves all patent, proprietary design, manufacturing, reproduction use, and sales rights
thereto, and to any article disclosed therein, except to the extent rights are expressly granted to others. The
foregoing does not apply to vendor proprietary parts.
In-line with NDC’s policy of continuous improvement, the information contained in this document may change
to allow the introduction of design improvements.
LaserSpeed Pro 8500-4 Instruction Handbook
Part Number: MAN/EN5103-0212
Revision: B
Date of Release: February, 2018

Contact NDC
Online Support
You can access the NDC Customer Support portal, myNDC at https://ndc.custhelp.com.
myNDC is a cloud-based portal that allows you to get product support by phone, ask a question, provide
feedback, submit an RMA request or access information in our on-line knowledge database. You can browse
the myNDC site or create a myNDC account.
To create a myNDC account, click the Log in or Sign up button. After creating the account, you will
be immediately logged in. To log in on subsequent visits to myNDC, click the Log in or Sign up but-
ton, enter your user name and password, and then click Log in.
To submit an RMA, click on the RMA Request tab and follow the on-screen instructions.

NDC Contact Numbers
Please have your sales order number at hand before contacting NDC.
−Beta LaserMike Gauges
Beta LaserMike Gauges
Americas
[phone]
Asia Pacific
India: [phone]
Alternative number [phone]
Japan: [phone]
All other countries: [phone]
Alternative number [phone]
China
[phone]
EMEA
(Europe,
Middle East,
Africa)
Germany: 0800 1123194
France: 0810 600 400
Italy: [phone]
All other countries (English speaking):
[phone]
Please select option 3 to be
connected to the service team

LaserSpeed Pro 8500-4 Instruction Handbook: Caution i
Caution
This equipment must be earthed/grounded.
Under NO circumstances should the earth safety connections be broken –internal damage to sensi-
tive electronic components may occur and at worst electrocution to personnel may result.
Relays and associated wiring are rated for SELV levels i.e. 60 VDC & 30 VAC RMS. These levels
must not be exceeded.
Maintenance, repairs and electrical connections should be performed by a suitably qualified person
for the country of installation.
Input power to the equipment is of direct current type designated by the symbol on equipment hous-
ing and shown below.
Reference IEC 60417-5031
The equipment contains a slow blow type fuse to protect against input power overloads and is not us-
er replaceable.
Intended Use
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
LS Pro 8500-4 Laser Safety Classification
The Model LS Pro 8500-4 Non-contact Length and Speed Gauge (Mod-
el LS Pro 8500-4) is classified as a 3B laser device. This category contains
infrared and visible laser devices with powers up to 500 mW. The optical
gauge in the system uses a 50 mW solid-state laser device operating be-
tween 760 and 800 nm (near infrared region of the spectrum).
A class 3B product must have the following safety features:
A 5-second delay after power-up before laser radiation is emitted
from the gauge.
An indicator light to inform personnel near the gauge that laser ra-
diation is being emitted.
A mechanical device to physically block the laser beam from exiting
the gauge.
An interlock circuit to shut off the laser when the circuit is opened.
All hazards must be properly identified with warning labels.
These basic safety features are incorporated to promote safe operation of
the laser.

ii LaserSpeed Pro 8500-4 Instruction Handbook: Caution
A class 3B laser must also have a key switch to power the laser, ensuring that only trained personnel can op-
erate the instrument. Because the location of the gauge can often make it difficult to access a key switch, the
key switch needs to be installed by the final user. It should be placed in a location that will be readily accessi-
ble to the operators. For more information on installing the laser key switch, see the Installing the System sec-
tion of the Instruction Handbook.
The user of a laser device must comply with a different set of regulations. Many countries and individual
states have passed legislation regarding the use of laser products.
The following system specifications will help establish appropriate safety measures.
Maximum Laser Power
0.050 watt
Laser Wavelength
0.785 micrometer
Minimum Laser Spot Size
(Elliptical)
5 x 3 millimeters
Beam Divergence
0.5 milliradians
Pulse Rate
Continuous wave
Maximum radiance (power
divided by spot-size area)
0.050 Watt/0.1 cm2
[0.5 W/cm2]
Laser Safety Precautions
The laser beam in the optical gauge is very powerful and can permanently damage eyes not protected by la-
ser safety glasses. To avoid exposing yourself to hazardous radiation, you must take these precautions:
Never look into the laser beam. If you must look at the beam, view it from an angle and in the direc-
tion in which the beam is travelling.
The beams emitted from the Model LS Pro 8500-4 are invisible to the unaided eye. Return the beam
shutter to the closed position when the system is not in use or during setup.
Ensure that all direct reflections are blocked.
Remove all rings, watches, or jewellery from your hands when working on or near the gauge—these
can cause hazardous reflections.
Never install the instrument at eye level.
Operate the system only with people who have been instructed in laser safety.
Post warning signs and lights that are active when laser is operating.
If your country or state has no regulations governing the safe use of lasers, NDC Technologies recommends
that you follow the guidelines specified by the American National Standard for the safe use of lasers (ANSI
Z136.1–2014). For a copy of this document, write to:

LaserSpeed Pro 8500-4 Instruction Handbook: Caution iii
Laser Institute of America
13501 Ingenuity Drive, Suite 128
Orlando, Florida 32826
1-800-345-2737
Labels and Safety Features
This section acquaints you with the advisory and identification labels on the instrument and the safety fea-
tures incorporated into the design of the instrument. The following figures show the identification and advisory
labels on the Model LS Pro 8500-4.

iv LaserSpeed Pro 8500-4 Instruction Handbook: Caution
LS8500-4E Labels
LS8500-4X Labels

LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents v
Table of Contents
1INTRODUCTION................................................................................................................................. 1-1
2SYSTEM OVERVIEW......................................................................................................................... 2-1
2.1 DESCRIPTION............................................................................................................................. 2-1
2.2 PRINCIPLE OF OPERATION.......................................................................................................... 2-1
3INSTALLING THE SYSTEM............................................................................................................... 3-1
3.1 INTRODUCTION........................................................................................................................... 3-1
3.2 MOUNTING THE GAUGE .............................................................................................................. 3-1
3.2.1 Mounting Distance........................................................................................................... 3-2
3.2.2Laser Safety..................................................................................................................... 3-2
3.2.3 Environmental Conditions................................................................................................ 3-2
3.2.4 Mounting Location ........................................................................................................... 3-4
3.2.5Aligning the Gauge.......................................................................................................... 3-5
3.2.6 Gauge Orientation ........................................................................................................... 3-7
3.3 CONNECTING POWER TO THE GAUGE ....................................................................................... 3-15
3.4 CONNECTING TO OUTPUTS....................................................................................................... 3-16
3.4.1 LS8500-4 25-Pin (Male) Connector Pinout ................................................................... 3-18
3.4.2 LS8500-4 9-Pin (Male) Connector Pinout ..................................................................... 3-19
3.4.3 LS8500-4 M12 Ethernet Connector Pinout ................................................................... 3-20
3.4.4 LS8500-4 M12 Profibus Connector Pinout.................................................................... 3-20
3.4.5 LS8500-4 M5 Shutter Status Connector Pinout............................................................ 3-21
3.4.6 LS8500-4E/LS8500-4X Connector Pinout..................................................................... 3-21
3.4.7 LS8500-4E/LS8500-4X Breakaway Cable Pinout......................................................... 3-24
3.5 MAXIMIZING PERFORMANCE ..................................................................................................... 3-26
3.5.1 Quality Factor ................................................................................................................ 3-26
3.5.2 Standoff Distance .......................................................................................................... 3-27
3.5.3 Material Present Adjustment ......................................................................................... 3-27
3.5.4 Material Present Dropout Time Selection...................................................................... 3-27
3.5.5 Validation Time Limit Selection ..................................................................................... 3-28
3.5.6 Starting/Ending Length Correction ................................................................................ 3-28
4INTERFACING WITH THE LS8500-4 ................................................................................................ 4-1
4.1 INTRODUCTION........................................................................................................................... 4-1
4.2 LS8500-4 INTERFACE CONNECTORS.......................................................................................... 4-1
4.2.1 DB25 (Male) Connector................................................................................................... 4-2

vi LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents
4.2.2 DB9 (Male) Connector................................................................................................... 4-24
4.2.3 M12 Ethernet Connector ............................................................................................... 4-29
4.2.4 M12 Profibus Connector................................................................................................ 4-29
4.2.5 M5 Shutter Status Connector........................................................................................ 4-30
4.3 LS8500-4 INTERFACE CABLES................................................................................................. 4-30
4.3.1 DB25 Cables.................................................................................................................. 4-30
4.3.2 Ethernet Cables............................................................................................................. 4-31
4.3.3 Profibus® Cables (Turk Profibus®-DP Cordset Selection)........................................... 4-31
4.3.4 Heavy Industrial Cables................................................................................................. 4-32
4.3.5 Breakaway Cables......................................................................................................... 4-33
4.4 LS8500-4 BREAKOUT ASSEMBLIES .......................................................................................... 4-37
4.4.1 DB25 Breakout Assemblies........................................................................................... 4-37
4.4.2 DB37 Breakout Assemblies........................................................................................... 4-38
4.4.3 Breakout Assembly Pinouts........................................................................................... 4-39
4.5 APPLICATION INTERFACES........................................................................................................ 4-41
4.5.1 Light Stack Interface...................................................................................................... 4-41
4.5.2 Thermostat Interface ..................................................................................................... 4-43
4.5.3 Index Pulse & Length Thresholds ................................................................................. 4-44
4.5.4 Gauge-Gauge Synchronization..................................................................................... 4-45
4.6 BANNER D10 THROUGH BEAM SWITCH..................................................................................... 4-47
4.6.1 Configuration Notes:...................................................................................................... 4-47
4.6.2 D10 Settings.................................................................................................................. 4-47
4.6.3 Single Through beam .................................................................................................... 4-47
4.6.4 Dual Through beam (uses two D10 modules)............................................................... 4-48
4.7 BANNER RETROFLECTIVE SWITCH (PICODOT) ........................................................................... 4-49
4.8 PEPPERL +FUCHS THROUGH BEAM SWITCHES......................................................................... 4-50
4.8.2 Pinout............................................................................................................................. 4-51
4.8.3 Configuration Notes:...................................................................................................... 4-52
4.8.4 Pinout............................................................................................................................. 4-52
4.8.5 Configuration Notes:...................................................................................................... 4-53
4.8.6 Pinout............................................................................................................................. 4-55
4.8.7 Configuration Notes:...................................................................................................... 4-56
4.9 DATAPRO 1000....................................................................................................................... 4-57
4.9.1 Quadrature Pinout ......................................................................................................... 4-57
4.9.2 Pulsed Pinout................................................................................................................. 4-57
4.10 DATAPRO 5000 DN................................................................................................................. 4-58

LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents vii
4.10.1 Quadrature Pinout ......................................................................................................... 4-58
4.10.2 Pulsed Pinout................................................................................................................. 4-58
4.11 DATAPRO 5000 DN –BECKHOFF I/O........................................................................................ 4-59
4.11.1 Quadrature Pinout ......................................................................................................... 4-59
4.11.2 Pulsed Pinout................................................................................................................. 4-59
4.12 DOMINO ASERIES ................................................................................................................... 4-60
4.12.1 Pinout............................................................................................................................. 4-60
4.13 DURANT PRESIDENT SERIES..................................................................................................... 4-61
4.13.1 Quadrature Pinout ......................................................................................................... 4-61
4.13.2 Pulsed Pinout................................................................................................................. 4-61
4.14 HENGSTLER 723.1................................................................................................................... 4-62
4.14.1 Quadrature Pinout ......................................................................................................... 4-62
4.14.2 Pulsed Pinout................................................................................................................. 4-63
4.15 IMAJE S4/S8............................................................................................................................ 4-63
4.15.1 Pinout............................................................................................................................. 4-63
4.16 MI800..................................................................................................................................... 4-64
4.16.1 Quadrature Pinout ......................................................................................................... 4-64
4.17 NEWPORT P6000A.................................................................................................................. 4-65
4.17.1 Pulsed Pinout................................................................................................................. 4-65
4.18 RED LION PAXI ....................................................................................................................... 4-66
4.18.1 Quadrature Pinout ......................................................................................................... 4-66
4.18.2 Pulsed Pinout................................................................................................................. 4-66
4.19 SIEMENS COUNTER MODULE 450-1.......................................................................................... 4-67
4.19.1 Quadrature Pinout ......................................................................................................... 4-67
4.20 SIEMENS COUNTER MODULE 6ES5 385-8MB11....................................................................... 4-68
4.20.1 Quadrature Pinout ......................................................................................................... 4-68
4.20.2 Pulsed Pinout................................................................................................................. 4-68
4.21 TRUEMETER............................................................................................................................ 4-69
4.21.1 Quadrature Pinout ......................................................................................................... 4-69
4.21.2 Pulsed Pinout................................................................................................................. 4-69
4.22 RED LION HMI PANELS AND DATA STATION PLUS...................................................................... 4-70
5LASERTRAK SOFTWARE ................................................................................................................ 5-1
5.1 LASERTRAK OVERVIEW.............................................................................................................. 5-1
5.2 LASERTRAK FOR WINDOWS........................................................................................................ 5-1
5.3 INSTALLING THE LASERTRAK SOFTWARE..................................................................................... 5-1
5.3.1 System Requirements ..................................................................................................... 5-1

viii LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents
5.3.2 Software Installation Procedure....................................................................................... 5-2
5.3.3 Starting LaserTrak........................................................................................................... 5-2
5.4 CHART RECORDER SCREEN ....................................................................................................... 5-5
5.4.1 Graph Info........................................................................................................................ 5-5
5.4.2 Gauge Status................................................................................................................... 5-6
5.4.3 LaserTrak Toolbar ........................................................................................................... 5-7
5.4.4 LaserTrak Menus............................................................................................................. 5-7
5.5 LASERTRAK CONFIGURATION SCREENS.................................................................................... 5-13
5.5.1 Standard Operating Parameters.................................................................................... 5-17
5.5.2 Output Configuration Parameters.................................................................................. 5-19
5.5.3 Advanced Operating Parameters.................................................................................. 5-21
5.5.4 Communication Parameters.......................................................................................... 5-23
5.5.5 Chart Recorder Toolbar................................................................................................. 5-23
5.6 DISPLAYING DATA.................................................................................................................... 5-25
5.6.1 Chart Display................................................................................................................. 5-25
5.6.2 Monitor Display.............................................................................................................. 5-26
5.6.3 Length Mode Display..................................................................................................... 5-27
5.6.4 Length Log Display........................................................................................................ 5-29
6RS-232/RS-422 COMMUNICATION .................................................................................................. 6-1
6.1 OVERVIEW................................................................................................................................. 6-1
6.2 BAUD RATE &FRAMING.............................................................................................................. 6-1
6.2.1Serial Commands to set Baud Rate & Framing .............................................................. 6-1
6.2.2 Baud Rate & Framing Settings........................................................................................ 6-2
6.2.3 RS-232 Maximum Cable Lengths.................................................................................... 6-2
6.3 BAUD RATE INDICATION ON POWER UP....................................................................................... 6-3
6.3.1 Automatic Baud Rate Detection ...................................................................................... 6-4
6.4 COMMUNICATION PROTOCOL...................................................................................................... 6-4
6.5 COMMUNICATION PROTOCOL:COMMAND DESCRIPTIONS............................................................. 6-6
6.6 REAL-TIME DATA TIMING.......................................................................................................... 6-61
6.7 COMMUNICATION PROTOCOL:COMMAND LIST........................................................................... 6-62
7SSI COMMUNICATIONS.................................................................................................................... 7-1
7.1 LASERSPEED IMPLEMENTATION.................................................................................................. 7-1
7.2 SSI TIMING AND DATA TRANSMISSION ........................................................................................ 7-2
7.3 LASERSPEED SSI TIMING PARAMETERS (SSI SLAVE MODE)........................................................ 7-3
7.4 LASERSPEED SSI CONFIGURATION ............................................................................................ 7-3
8ETHERNET COMMUNICATION ........................................................................................................ 8-1

LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents ix
8.1 OVERVIEW................................................................................................................................. 8-1
8.2 SUPPORTED PROTOCOLS........................................................................................................... 8-1
8.3 CONFIGURATION SETTINGS ........................................................................................................ 8-2
8.4 IP ADDRESS CONFIGURATION..................................................................................................... 8-2
8.5 DHCP....................................................................................................................................... 8-3
8.6 MANUALLY CONFIGURED IP ADDRESS ........................................................................................ 8-3
8.6.1 Configuring the IP Address with LaserTrak..................................................................... 8-3
8.6.2 Configuring the IP Address with HyperTerminal ............................................................. 8-4
8.7 PING /ICMP.............................................................................................................................. 8-4
8.7.1 Ping Example using Manual IP Address ......................................................................... 8-4
8.8 TCP COMMUNICATIONS ............................................................................................................. 8-5
8.9 UDP COMMUNICATIONS............................................................................................................. 8-5
8.9.1UDP Command Example ................................................................................................ 8-6
8.9.2 UDP Real-Time Measurement Example ......................................................................... 8-7
8.9.3 UDP Discovery Beacon................................................................................................... 8-8
8.9.4 Discovery Beacon Format............................................................................................... 8-8
8.9.5 Discovery Beacon Response Format.............................................................................. 8-9
8.9.6 UDP Discovery Beacon Example.................................................................................. 8-10
9ETHERNET/IP™ ................................................................................................................................. 9-1
9.1 ETHERNET/IP™ EDS FILE......................................................................................................... 9-1
9.2 CIP ASSEMBLY OBJECT (CLASS 4/0X4)...................................................................................... 9-3
9.3 CIP DATABASE OBJECT (CLASS 102/0X66) ................................................................................ 9-4
9.3.1 LaserSpeed Pro Database Services ............................................................................... 9-4
9.3.2 Database Object Instance 1 (Setup Parameters)............................................................ 9-7
9.3.3 Database Object Instance 2 (Measurement Data)........................................................ 9-10
10 PROFINET I/O™.............................................................................................................................. 10-1
10.1 PROFINET IO GSDML FILE................................................................................................... 10-1
10.2 PROFINET IO DATA............................................................................................................... 10-2
10.2.1 PROFINET IO Input Module 1 (0x30) ........................................................................... 10-2
10.2.2 PROFINET IO Output Module 1 (0x31)......................................................................... 10-3
10.3 PROFINET IO PKW HEADER.................................................................................................. 10-3
10.3.1 Detection of Matching PKW Response ......................................................................... 10-4
10.3.2 PKW Command Code List............................................................................................. 10-5
10.3.3 PKW Idle Command (Command Code 0) ..................................................................... 10-6
10.3.4 PKW Enumeration Command (Command Code 1)....................................................... 10-6
10.3.5 PKW Read Long (Command Code 4)........................................................................... 10-7

x LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents
10.3.6 PKW Write Long (Command Code 5) ........................................................................... 10-7
10.3.7 PKW Read Float (Command Code 6)........................................................................... 10-7
10.3.8 PKW Write Float (Command Code 7) ........................................................................... 10-7
10.3.9 PKW Load String (Command Code 8) .......................................................................... 10-8
10.3.10 PKW Read String Segment (Command Code 9).......................................................... 10-8
10.3.11 PKW Write String Segment (Command Code 10) ........................................................ 10-8
10.3.12 PKW Save String (Command Code 11)........................................................................ 10-9
10.3.13 PKW Measurement Enumeration (Command Code 12)............................................... 10-9
10.3.14 PKW Read Long Measurement (Command Code 13)................................................ 10-10
10.3.15 PKW Read Float Measurement (Command Code 14)................................................ 10-10
10.3.16 Database Items (Setup Parameters)........................................................................... 10-10
10.3.17 Measurement Table..................................................................................................... 10-13
11 PROFIBUS DP™ ............................................................................................................................. 11-1
11.1 PROFIBUS GSD FILE................................................................................................................ 11-1
11.2 PROFIBUS DATA....................................................................................................................... 11-2
11.2.1 Profibus Input................................................................................................................. 11-2
11.2.2 Profibus Output.............................................................................................................. 11-3
11.3 PROFIBUS PKW HEADER ......................................................................................................... 11-4
11.3.1 Detection of Matching PKW Response ......................................................................... 11-5
11.3.2 PKW Command Code List............................................................................................. 11-6
11.3.3 PKW Idle Command (Command Code 0) ..................................................................... 11-6
11.3.4 PKW Enumeration Command (Command Code 1)....................................................... 11-6
11.3.5 PKW Read Long (Command Code 4)........................................................................... 11-7
11.3.6 PKW Write Long (Command Code 5) ........................................................................... 11-7
11.3.7 PKW Read Float (Command Code 6)........................................................................... 11-7
11.3.8 PKW Write Float (Command Code 7) ........................................................................... 11-8
11.3.9 PKW Load String (Command Code 8) .......................................................................... 11-8
11.3.10 PKW Read String Segment (Command Code 9).......................................................... 11-8
11.3.11 PKW Write String Segment (Command Code 10) ........................................................ 11-9
11.3.12 PKW Save String (Command Code 11)........................................................................ 11-9
11.3.13 PKW Measurement Enumeration (Command Code 12)............................................... 11-9
11.3.14 PKW Read Long Measurement (Command Code 13)................................................ 11-10
11.3.15 PKW Read Float Measurement (Command Code 14)................................................ 11-10
11.3.16 Database Items (Setup Parameters)........................................................................... 11-10
11.3.17 Measurement Table..................................................................................................... 11-13
12 MODBUS TCP INTERFACE ........................................................................................................... 12-1

LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents xi
12.1 PRODUCT SUPPORT................................................................................................................. 12-1
12.2 MODBUS TCP DISCRETE INPUTS.............................................................................................. 12-1
12.3 MODBUS TCP COILS................................................................................................................ 12-2
12.4 MODBUS TCP INPUT REGISTERS.............................................................................................. 12-2
12.4.1 Input Register Status (Address 5) ................................................................................. 12-4
13 SPECIFICATIONS........................................................................................................................... 13-1
13.1 GENERAL LASERSPEED SPECIFICATIONS.................................................................................. 13-1
13.2 LS8500-4 SPECIFICATIONS...................................................................................................... 13-2
13.3 LS8500-4E SPECIFICATIONS ................................................................................................... 13-3
13.4 LS8500-4X SPECIFICATIONS ................................................................................................... 13-4
13.5 LS8500-4 FEATURES............................................................................................................... 13-5
14 DIMENSIONS AND INSTALLATION DRAWINGS.......................................................................... 14-1
14.1 INDICATORS............................................................................................................................. 14-1
14.2 LS8500-4 COOLING REQUIREMENTS........................................................................................ 14-2
14.3 LS8500-4 DRAWINGS.............................................................................................................. 14-3
14.3.1 Dimensional Drawings for Short-Standoff Gauge Models............................................. 14-4
14.3.2 Dimensional Drawings for Long-Standoff Gauge Models ............................................. 14-5
14.3.3 Air Wipe / Quick Change Window (optional) ................................................................. 14-6
14.4 LS8500-4E DRAWINGS............................................................................................................ 14-7
14.4.1 E-Housing Center Mount Option ................................................................................... 14-7
14.4.2 E-Housing Left Mount Option........................................................................................ 14-9
14.4.3 E-Housing Right Mount Option.................................................................................... 14-10
14.4.4 E-Housing Air Wipe ..................................................................................................... 14-11
14.4.5 E-Housing Air Purge.................................................................................................... 14-12
14.5 LS8500-4X DRAWINGS.......................................................................................................... 14-13
15 SUPPLY VOLTAGE REQUIREMENTS.......................................................................................... 15-1
15.1 DUAL CONDUCTOR SUPPLY...................................................................................................... 15-1
15.1.1 Voltage Drop using Single Supply/Single Return.......................................................... 15-2
15.2 QUAD CONDUCTOR SUPPLY ..................................................................................................... 15-2
15.3 LASERSPEED CABLES.............................................................................................................. 15-3
16 50M+ OPTION CABLE BUFFER BOARD...................................................................................... 16-1
16.1 INTRODUCTION......................................................................................................................... 16-1
16.2 APPLICATIONS ......................................................................................................................... 16-1
16.3 INSTALLATION.......................................................................................................................... 16-2
16.3.1 Signal Pinout.................................................................................................................. 16-2
16.3.2 Installation of the Buffer Board...................................................................................... 16-3

xii LaserSpeed Pro 8500-4 Instruction Handbook: Table of Contents
16.3.3 Application Instructions.................................................................................................. 16-5
16.3.4 Application Example #1................................................................................................. 16-5
16.3.5 Application Example #2................................................................................................. 16-7
16.4 SPECIFICATIONS ...................................................................................................................... 16-8
16.4.1 Component Ratings....................................................................................................... 16-8
17 TROUBLESHOOTING GUIDE........................................................................................................ 17-1
17.1 COMMUNICATIONS ................................................................................................................... 17-1
17.2 QUALITY FACTOR/VALID MEASUREMENTS................................................................................. 17-7
17.3 MEASUREMENTS.................................................................................................................... 17-13
17.4 MISCELLANEOUS.................................................................................................................... 17-18
17.5 ETHERNET............................................................................................................................. 17-20
18 SERVICING YOUR EQUIPMENT ................................................................................................... 18-1

CHAPTER
1
LaserSpeed Pro 8500-4 Instruction Handbook: Introduction 1-1
1 Introduction
This manual describes the installation and setup of the LaserSpeed 8500-4 gauge. For daily routine usage,
see the LaserSpeed 8500-4 Operator Guide.
The Model LS8500-4 LaserSpeed® Non-contact Length and Speed gauge is an industrial, Laser-Doppler
based instrument that measures the velocity and length of material. Due to the nature of the laser-based
measurement, there is no physical contact with the material. This eliminates the problems of wheel wear and
slippage that plague mechanical/encoder based length measurement systems.

CHAPTER
2
LaserSpeed Pro 8500-4 Instruction Handbook: System Overview 2-1
2 System Overview
2.1 Description
The Model LS8500-4 is a stand-alone instrument that requires only 24 VDC input power to operate. The sys-
tem has a variety of industrial outputs. Also, a variety of information including length, velocity, system operat-
ing parameters, and setup parameters can be read and configured using the communications interfaces.
The LS8500-4 is permanently calibrated to a NIST traceable standard at the factory. Aside from periodic
cleaning of the optical window, the LS8500-4 does not require maintenance.
See also the Specifications section at the end of this manual.
2.2 Principle of Operation
LaserSpeed utilizes dual-beam interferometer technology to provide accurate velocity readings. The meas-
ured velocity is integrated over time to measure the length of moving objects. The opto-electronic portion of
the LS8500-4 generates a laser beam that is split and then crossed in space. The two crossing beams inter-
act, producing a fringe pattern that is orthogonal to the plane of the two beams.
Light is scattered when material passes through the measurement region. This scattered light is collected by
the gauge and converted to electrical signals. The frequency of the electrical signal contains information with
regards to the velocity of the material. The signal processor converts the electrical signals to frequency infor-
mation that is directly proportional to the velocity of the material moving through the laser beams. The signal
processor converts the frequency information into velocity information and updates user outputs. In order to
determine if there is an object in the measurement area, the gauge measures the amount of reflected laser
light.

2-2 LaserSpeed Pro 8500-4 Instruction Handbook: System Overview

Material Surface
Measurement Region
d
Resulting
Electrical Signal
with Frequency ( )f
t
Side View
Material Movement
Top View
Fringe distance ( d ) is a function of la-
ser wavelength () and beam angle ():


sin2
d
Period is the inverse of frequency:
f
t1 
Velocity is distance divided over time:
t
d
v
Velocity is integrated to find Length
 TdtvL 0