LMI Technologies Gocator 2100 Series User manual

USERMANUAL Gocator Line Profile Sensors
2100, 2300, 2400 & 2880 Series
Firmware version:4.5.x.xx
Document revision:A

Gocator Line Profile Sensors - User Manual 2
Copyright
Copyright © 2016 by LMI Technologies, Inc. All rights reserved.
Proprietary
This document, submitted in confidence, contains proprietary information which shall not be
reproduced or transferred to other documents or disclosed to others or used for manufacturing or any
other purpose without prior written permission of LMI Technologies Inc.
No part of this publication may be copied, photocopied, reproduced, transmitted, transcribed, or
reduced to any electronic medium or machine readable form without prior written consent of LMI
Technologies, Inc.
Trademarks and Restrictions
Gocator™ is a registered trademark of LMI Technologies, Inc. Any other company or product names
mentioned herein may be trademarks of their respective owners.
Information contained within this manual is subject to change.
This product is designated for use solely as a component and as such it does not comply with the
standards relating to laser products specified in U.S. FDA CFR Title 21 Part 1040.
Contact Information
For more information, please contact LMI Technologies.
LMI Technologies, Inc. 1673 Cliveden Ave.
Delta, BC V3M 6V5
Canada
Telephone: [phone]
Facsimile: [phone]
www.lmi3D.com

Gocator Line Profile Sensors - User Manual 3
Table of Contents
Copyright 2
Table of Contents 3
Introduction 11
Safety and Maintenance 12
Laser Safety 12
Laser Classes 13
Precautions and Responsibilities 14
Class 3B Responsibilities 14
Nominal Ocular Hazard Distance (NOHD) 15
Systems Sold or Used in the USA 16
Electrical Safety 16
Handling, Cleaning, and Maintenance 17
Environment and Lighting 17
Getting Started 19
System Overview 19
Standalone System 19
Dual-Sensor System 20
Multi-Sensor System 21
Hardware Overview 22
Gocator Sensor 22
Gocator Cordsets 22
Master 100 23
Master 400/800 24
Master 1200/2400 24
Calibration Targets 25
Installation 27
Grounding - Gocator 27
Recommended Grounding Practices - Cordsets 27
Grounding - Master 400/800/1200/2400 28
Mounting 28
Orientations 29
Rut-Scanning System Setup 31
Layout 31
System Setup 32
Software Configuration 32
System Operation 33
Network Setup 34
Client Setup 34
Gocator Setup 36
Running a Standalone Sensor System 36
Running a Dual-Sensor System 37
Next Steps 39
How Gocator Works 41
3D Acquisition 41
Clearance Distance, Field of Viewand
Measurement Range 42
Resolution and Accuracy 43
X Resolution 43
Z Resolution 44
Z Linearity 44
Profile Output 46
Coordinate Systems 46
Sensor Coordinates 46
System Coordinates 47
Part and Section Coordinates 49
Switching between Coordinate Systems 50
Uniform Spacing (Data Resampling) 50
Data Generation and Processing 51
Surface Generation 51
Part Detection 52
Sectioning 52
Part Matching 53
Measurement and Anchoring 53
Output and Digital Tracking 54
Gocator Web Interface 55
User Interface Overview 55
Toolbar 56
Creating, Saving and Loading Jobs (Settings) 56
Recording, Playback, and Measurement
Simulation 58
Recording Filtering 60
Downloading, Uploading, and Exporting
Replay Data 61
Metrics Area 63
Data Viewer 64
Status Bar 64
Log 64
Frame Information 65
Interface Language 65
System Management and Maintenance 67
Manage Page Overview 67
Sensor System 68
Sensor Autostart 68

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System Layout 68
Buddy Assignment 70
Exposure Multiplexing 71
Over Temperature Protection 71
Networking 72
Motion and Alignment 72
Alignment Reference 73
Encoder Resolution 73
Encoder Value and Frequency 74
Travel Speed 74
Jobs 74
Security 76
Maintenance 77
Sensor Backups and Factory Reset 78
Firmware Upgrade 79
Support 79
Support Files 80
Manual Access 81
Software Development Kit 81
Scan Setup and Alignment 82
Scan Page Overview 82
Scan Modes 83
Triggers 84
Trigger Examples 86
Trigger Settings 87
Sensor 89
Active Area 89
Tracking Window 90
Transformations 92
Exposure 93
Single Exposure 94
Dynamic Exposure 95
Multiple Exposure 96
Spacing 97
Sub-Sampling 97
Spacing Interval 98
Material 99
Alignment 101
Alignment States 101
Alignment Types 101
Alignment: With and Without Encoder
Calibration 101
Aligning Sensors 102
Clearing Alignment 105
Filters 105
Gap Filling 105
Median 106
Smoothing 107
Decimation 108
Surface Generation 108
Part Detection 112
Edge Filtering 115
Data Viewer 116
Data Viewer Controls 117
Video Mode 117
Exposure Information 117
Exposures 117
Overexposure and Underexposure 118
Spots and Dropouts 119
Profile Mode 120
Section Mode 122
Surface Mode 123
Height Map Color Scale 126
Region Definition 127
Intensity Output 128
Models 129
Model Page Overview 129
Part Matching 130
Using Edge Detection 131
Creating a Model 134
Modifying a Model's Edge Points 136
Adjusting Target Sensitivity 139
Setting the Match Acceptance Criteria 140
Running Part Matching 140
Using Bounding Box and Ellipse 140
Configuring a Bounding Box or an Ellipse142
Running Part Matching 143
Using Part Matching to Accept or Reject a
Part 144
Sections 144
Creating a Section 147
Deleting a Section 149
Measurement 150
Measure Page Overview 150

Gocator Line Profile Sensors - User Manual 5
Data Viewer 151
Tools Panel 151
Adding and Configuring a Tool 151
Source 152
Streams (Sections) 153
Regions 153
Decisions 154
Filters 156
Measurement Anchoring 157
Enabling and Disabling Measurements 158
Editing a Tool or Measurement Name 160
Changing a Measurement ID 160
Removing a Tool 161
Profile Measurement 161
Feature Points 161
Fit Lines 163
Measurement Tools 164
Area 164
Bounding Box 166
Bridge Value 168
Circle 170
Dimension 171
Groove 173
Intersect 177
Line 179
Panel 180
Position 182
Round Corner 183
Strip 186
Tilt 190
Script 190
Surface Measurement 191
Measurement Tools 192
Bounding Box 192
Countersunk Hole 196
Dimension 203
Ellipse 206
Hole 208
Measurement Region 212
Opening 212
Measurement Region 219
Plane 219
Position 222
Stud 224
Measurement Region 227
Volume 227
Script 229
Script Measurement 230
Built-in Functions 230
Output 235
Output Page Overview 235
Ethernet Output 236
Digital Output 240
Analog Output 242
Serial Output 244
Dashboard 247
Dashboard Page Overview 247
State and Health Information 247
Measurements 249
Gocator Emulator 250
Limitations 250
Downloading a Support File 251
Running the Emulator 252
Adding a Scenario to the Emulator 253
Running a Scenario 253
Removing a Scenario from the Emulator 254
Using Replay Protection 255
Stopping and Restarting the Emulator 255
Working with Jobs and Data 255
Creating, Saving, and Loading Jobs 255
Playback and Measurement Simulation 256
Downloading, Uploading, and Exporting
Replay Data 258
Downloading and Uploading Jobs 260
Scan, Model, and Measurement Settings 261
Calculating Potential Maximum Frame Rate 262
Protocol Output 262
Remote Operation 262
Gocator Accelerator 264
Benefits 265
Installation 265
Gocator Accelerator Application 265
Dashboard 267
SDK Application Integration 267

Gocator Line Profile Sensors - User Manual 6
Limitations 268
Gocator Device Files 269
Live Files 269
Log File 270
Job Files 270
Job File Components 270
Accessing Files and Components 271
Configuration 271
Setup 272
Filters 273
XSmoothing 273
YSmoothing 274
XGapFilling 274
YGapFilling 274
XMedian 274
YMedian 275
XDecimation 275
YDecimation 275
XSlope 275
YSlope 275
Trigger 276
Layout 277
Alignment 278
Disk 279
Bar 279
Plate 279
Devices / Device 279
Tracking 281
Material 282
SurfaceGeneration 283
FixedLength 284
VariableLength 284
Rotational 284
SurfaceSections 284
ProfileGeneration 285
FixedLength 285
VariableLength 285
Rotational 286
PartDetection 286
EdgeFiltering 287
PartMatching 287
Edge 288
BoundingBox 288
Ellipse 288
Replay 289
RecordingFiltering 289
Conditions/AnyMeasurement 289
Conditions/AnyData 289
Conditions/Measurement 290
Streams/Stream (Read-only) 290
ToolOptions 291
MeasurementOptions 291
StreamOption 291
Tools 292
Profile Types 292
ProfileFeature 292
ProfileLine 292
ProfileRegion2d 293
SurfaceTypes 293
Region3D 293
SurfaceFeature 293
SurfaceRegion2d 294
ProfileArea 294
ProfileBoundingBox 295
ProfileBridgeValue 297
ProfileCircle 298
ProfileDimension 300
ProfileGroove 301
ProfileIntersect 303
ProfileLine 304
ProfilePanel 306
ProfilePosition 308
ProfileRoundCorner 309
ProfileStrip 311
Script 313
SurfaceBoundingBox 313
SurfaceCsHole 315
SurfaceDimension 317
SurfaceEllipse 319
SurfaceHole 321
SurfaceOpening 322
SurfacePlane 325
SurfacePosition 326
SurfaceStud 327

Gocator Line Profile Sensors - User Manual 7
SurfaceVolume 329
Output 331
Ethernet 331
Ascii 333
EIP 334
Modbus 334
Digital0 and Digital1 334
Analog 335
Serial 336
Selcom 336
Ascii 337
Transform 337
Device 338
Part Models 339
Edge Points 340
Configuration 340
Protocols 342
Gocator Protocol 342
Data Types 343
Commands 343
Discovery Commands 344
Get Address 344
Set Address 345
Get Info 346
Control Commands 347
Protocol Version 348
Get Address 348
Set Address 349
Get System Info 349
Get States 350
Log In/Out 351
Change Password 352
Set Buddy 352
List Files 353
Copy File 353
Read File 354
Write File 354
Delete File 355
User Storage Used 355
User Storage Free 356
Get Default Job 356
Set Default Job 356
Get Loaded Job 357
Get Alignment Reference 357
Set Alignment Reference 358
Clear Alignment 358
Get Timestamp 359
Get Encoder 359
Reset Encoder 359
Start 360
Scheduled Start 360
Stop 361
Get Auto Start Enabled 361
Set Auto Start Enabled 361
Start Alignment 362
Start Exposure Auto-set 362
Software Trigger 363
Schedule Digital Output 363
Schedule Analog Output 364
Ping 364
Reset 365
Backup 365
Restore 366
Restore Factory 366
Get Recording Enabled 367
Set Recording Enabled 367
Clear Replay Data 367
Get Playback Source 368
Set Playback Source 368
Simulate 369
Seek Playback 369
Step Playback 369
Playback Position 370
Clear Measurement Stats 370
Read Live Log 371
Clear Log 371
Simulate Unaligned 371
Acquire 372
Acquire Unaligned 372
Create Model 373
Detect Edges 373
Add Tool 373
Add Measurement 374
Read File (Progressive) 374

Gocator Line Profile Sensors - User Manual 8
Export CSV (Progressive) 375
Export Bitmap (Progressive) 376
Get Runtime Variable Count 377
Set Runtime Variables 377
GetRuntimeVariables 378
Upgrade Commands 378
Start Upgrade 378
Start Upgrade Extended 379
Get Upgrade Status 379
Get Upgrade Log 380
Results 380
Data Results 380
Stamp 381
Video 381
Profile 382
Resampled Profile 383
Profile Intensity 384
Surface 384
Surface Intensity 385
Surface Section 385
Surface Section Intensity 386
Measurement 387
Operation Result 387
Exposure Calibration Result 388
Edge Match Result 388
Bounding Box Match Result 389
Ellipse Match Result 389
Health Results 389
Modbus Protocol 395
Concepts 395
Messages 395
Registers 396
Control Registers 397
Output Registers 398
State 398
Stamp 399
Measurement Registers 400
EtherNet/IP Protocol 401
Concepts 401
Basic Object 402
Identity Object (Class 0x01) 402
TCP/IP Object (Class 0xF5) 402
Ethernet Link Object (Class 0xF6) 402
Assembly Object (Class 0x04) 403
Command Assembly 403
Runtime Variable Configuration Assembly 404
Sensor State Assembly 405
Sample State Assembly 406
Implicit Messaging Command Assembly 407
Implicit Messaging Output Assembly 408
ASCIIProtocol 410
Connection Settings 410
Ethernet Communication 410
Serial Communication 411
Polling Operation Commands (Ethernet Only) 411
Command and Reply Format 412
Special Characters 412
Control Commands 412
Start 412
Stop 413
Trigger 413
LoadJob 414
Stamp 414
Stationary Alignment 415
Moving Alignment 415
Clear Alignment 415
Data Commands 416
Result 416
Value 416
Decision 417
Health Commands 418
Health 418
Standard Result Format 418
Custom Result Format 419
Selcom Protocol 421
Serial Communication 421
Connection Settings 421
Message Format 421
Development Kits 423
Software Development Kit 424
Setup and Locations 424
Class Reference 424
Examples 424
Sample Project Environment Variable 425

Gocator Line Profile Sensors - User Manual 9
Header Files 425
Class Hierarchy 425
GoSystem 425
GoSensor 426
GoSetup 426
GoLayout 426
GoTools 426
GoTransform 426
GoOutput 426
Data Types 426
Value Types 426
Output Types 427
GoDataSet Type 428
MeasurementValues and Decisions 428
Operation Workflow 429
Initialize GoSdk APIObject 429
Discover Sensors 430
Connect Sensors 430
Configure Sensors 430
Enable Data Channels 430
Perform Operations 430
Limiting Flash Memory Write Operations 432
GDK 432
Benefits 433
Supported Sensors 433
Typical Workflow 434
Tools and Native Drivers 435
Sensor Recovery Tool 435
GenTL Driver 437
16-bit RGB Image 441
16-bit Grey Scale Image 442
Registers 444
XMLSettings File 445
Interfacing with Halcon 445
Setting Up Halcon 446
Halcon Procedures 449
Generating Halcon Acquisition Code 453
CSV Converter Tool 454
Troubleshooting 456
Specifications 458
Sensors 458
Gocator 2100 & 2300 Series 458
Gocator 2320 461
Gocator 2130 and 2330 463
Gocator 2140 and 2340 465
Gocator 2342 467
Gocator 2150 and 2350 469
Gocator 2170 and 2370 472
Gocator 2375 475
Gocator 2180 and 2380 478
Gocator 2400 Series 481
Gocator 2410 483
Gocator 2420 486
Gocator 2880 Sensor 489
Gocator 2880 490
Sensor Connectors 493
Gocator Power/LAN Connector 493
Grounding Shield 493
Power 494
Laser Safety Input 494
Gocator I/O Connector 495
Grounding Shield 495
Digital Outputs 495
Inverting Outputs 496
Digital Input 496
Encoder Input 497
Serial Output 498
Analog Output 498
Master Hubs 498
Master 100 499
Master 100 Dimensions 500
Master 400/800 501
Master 400/800 Electrical Specifications 502
Master 400/800 Dimensions 503
Master 810 504
Master 810 Electrical Specifications 505
Master 810 Dimensions 506
Master 1200/2400 507
Master 1200/2400 Electrical Specifications 508
Master 1200/2400 Dimensions 509
Master 2410 510
Master 2410 Electrical Specifications 511
Master 2410 Dimensions 512
Accessories 513

Gocator Line Profile Sensors - User Manual 10
Return Policy 515
Software Licenses 516
Support 522
Contact 523

Gocator Line Profile Sensors - User Manual 11
Introduction
Gocator laser profile sensors are designed for 3D measurement and control applications. Gocator
sensors are configured using a web browser and can be connected to a variety of input and output
devices.
This documentation describes how to connect, configure, and use a Gocator. It also contains reference
information on the device's protocols and job files. The documentation applies to the following sensors:
lGocator 2100 series
lGocator 2300 series
lGocator 2400 series
lGocator 2880
B revision Gocator sensors are only supported by firmware version 4.3 or later.
C revision Gocator sensors are only supported by firmware version 4.5 or later.
Notational Conventions
This documentation uses the following notational conventions:
Follow these safety guidelines to avoid potential injury or property damage.
Consider this information in order to make best use of the product.

Gocator Line Profile Sensors - User Manual 12
Safety and Maintenance
The following sections describe the safe use and maintenance of Gocator sensors.
Laser Safety
Gocator sensors contain
semiconductor lasers that emit visible
or invisible light and are designated as
Class 2M, Class 3R, or Class 3B,
depending on the chosen laser option.
See Laser Classes on the next page for
more information on the laser classes
used in Gocator sensors.
Gocator sensors are referred to as
components, indicating that they are
sold only to qualified customers for
incorporation into their own
equipment. These sensors do not
incorporate safety items that the
customer may be required to provide
in their own equipment (e.g., remote
interlocks, key control; refer to the
references below for detailed
information). As such, these sensors
do not fully comply with the standards
relating to laser products specified in
IEC 60825-1 and FDA CFR Title 21 Part
1040.
Use of controls or adjustments or performance of procedures other than those specified herein
may result in hazardous radiation exposure.
References
1. International standard IEC 60825-1 (2001-08) consolidated edition, Safety of laser products – Part 1:
Equipment classification, requirements and user's guide.
2. Technical report 60825-10, Safety of laser products – Part 10. Application guidelines and explanatory
notes to IEC 60825-1.
3. Laser Notice No. 50, FDA and CDRH http://www.fda.gov/cdrh/rad-health.html

Gocator Line Profile Sensors - User Manual Safety and Maintenance • Laser Safety • 13
Laser Classes
Class 2M laser components
Class 2M laser components should not cause
permanent damage to the eye under
reasonably foreseeable conditions of operation,
provided that:
lNo optical aids are used (these could focus
the beam).
lThe user’s blink reflex can terminate
exposure (in under 0.25 seconds).
lUsers do not need to look repeatedly at the
beam or reflected light.
lExposure is only accidental.
Class 3R laser components
Class 3R laser products emit radiation where
direct intrabeam viewing is potentially
hazardous, but the risk is lower with 3R lasers
than for 3B lasers. Fewer manufacturing
requirements and control measures for 3R laser
users apply than for 3B lasers. Eye protection
and protective clothing are not required. The
laser beam must be terminated at the end of an
appropriate path. Avoid unintentional
reflections. Personnel must be trained in
working with laser equipment.
Class 3B laser components
Class 3B components are unsafe for eye
exposure. Usually only eye protection is
required. Protective gloves may also be used.
Diffuse reflections are safe if viewed for less
than 10 seconds at a minimum distance of 13
cm. There is a risk of fire if the beam encounters
flammable materials. The laser area must be
clearly identified. Use a key switch or other
mechanism to prevent unauthorized use. Use a
clearly visible indicator to show that a laser is in
use, such as “Laser in operation.” Restrict the
laser beam to the working area. Ensure that
there are no reflective surfaces in this area.
Labels reprinted here are examples only. For accurate specifications, refer to the label on your
sensor.

Gocator Line Profile Sensors - User Manual Safety and Maintenance • Laser Safety • 14
For more information, see Precautions and Responsibilities below.
Precautions and Responsibilities
Precautions specified in IEC 60825-1 and FDA CFR Title 21 Part 1040 are as follows:
Requirement Class 2M Class 3R Class 3B
Remote interlock Not required Not required Required*
Key control Not required Not required Required – cannot remove
key when in use*
Power-on delays Not required Not required Required*
Beam attenuator Not required Not required Required*
Emission indicator Not required Not required Required*
Warning signs Not required Not required Required*
Beam path Not required Terminate beam at useful
length
Terminate beam at useful
length
Specular reflection Not required Prevent unintentional
reflections
Prevent unintentional
reflections
Eye protection Not required Not required Required under special
conditions
Laser safety officer Not required Not required Required
Training Not required Required for operator and
maintenance personnel
Required for operator and
maintenance personnel
*LMI Class 3B laser components do not incorporate these laser safety items. These items must be added and completed by customers
in their system design. For more information, see Class 3B Responsibilities below.
Class 3B Responsibilities
LMI Technologies has filed reports with the FDA to assist customers in achieving certification of laser
products. These reports can be referenced by an accession number, provided upon request. Detailed
descriptions of the safety items that must be added to the system design are listed below.
Remote Interlock
A remote interlock connection must be present in Class 3B laser systems. This permits remote switches
to be attached in serial with the keylock switch on the controls. The deactivation of any remote switches
must prevent power from being supplied to any lasers.
Key Control
A key operated master control to the lasers is required that prevents any power from being supplied to
the lasers while in the OFF position. The key can be removed in the OFF position but the switch must not
allow the key to be removed from the lock while in the ON position.

Gocator Line Profile Sensors - User Manual Safety and Maintenance • Laser Safety • 15
Power-On Delays
A delay circuit is required that illuminates warning indicators for a short period of time before supplying
power to the lasers.
Beam Attenuators
A permanently attached method of preventing human access to laser radiation other than switches,
power connectors or key control must be employed.
Emission Indicator
It is required that the controls that operate the sensors incorporate a visible or audible indicator when
power is applied and the lasers are operating. If the distance between the sensor and controls is more
than 2 meters, or mounting of sensors intervenes with observation of these indicators, then a second
power-on indicator should be mounted at some readily-observable position. When mounting the
warning indicators, it is important not to mount them in a location that would require human exposure
to the laser emissions. User must ensure that the emission indicator, if supplied by OEM, is visible when
viewed through protective eyewear.
Warning Signs
Laser warning signs must be located in the vicinity of the sensor such that they will be readily observed.
Examples of laser warning signs are as follows:
FDA warning sign example IEC warning sign example
Nominal Ocular Hazard Distance (NOHD)
Nominal Ocular Hazard Distance (NOHD)is the distance from the source at which the intensity or the
energy per surface unit becomes lower than the Maximum Permissible Exposure (MPE) on the cornea
and on the skin.
The laser beam is considered dangerous if the operator is closer to the source than the NOHD.
The following table shows example calculations of the NOHDvalues for each Gocator model and laser
class, assuming continuous operation of the laser. As a configurable device the Gocator, lets you set the
laser exposure (laser on-time) independently of the frame period (total cycle time for data acquisition).
Continuous operation of the laser means that the laser exposure is configured to be identical to the
frame period, which is also referred to as 100% duty cycle. However, in many applications the laser
exposure can be smaller than the frame period (less than 100% duty cycle) thereby reducing the NOHD.
The table therefore shows the worst-case NOHD.

Gocator Line Profile Sensors - User Manual Safety and Maintenance • Electrical Safety • 16
Model Laser Class Model Constant Class IMPE(mW) Class IIMPE(mw) Class INOHD(mm) Class IINOHD
(mm)
2x20 2M 101 0.39 0.98 259 103
2x30 2M 101 0.39 0.98 259 103
3R 351 0.39 0.98 900 358
3B 2246 0.39 0.98 5759 2292
2x40 2M 101 0.39 0.98 259 103
3R 351 0.39 0.98 900 358
3B 2246 0.39 0.98 5759 2292
2x50 2M 101 0.39 0.98 259 103
3R 351 0.39 0.98 900 358
3B 2246 0.39 0.98 5759 2292
2x70 2M 98 0.39 0.98 251 100
3R 341 0.39 0.98 875 348
3B 1422 0.39 0.98 3645 1451
2x75 3B-N 8817 0.64 13777
2x80 2M 95 0.39 0.98 245 97
3R 335 0.39 0.98 859 342
3B 1031 0.39 0.98 2645 1052
To calculate the NOHDvalue for a specific laser class, use the following formula:
NOHD= Model Constant / MPE
Model Constant includes a consideration of the fan angle for the individual models.
Systems Sold or Used in the USA
Systems that incorporate laser components or laser products manufactured by LMI Technologies
require certification by the FDA.
Customers are responsible for achieving and maintaining this certification.
Customers are advised to obtain the information booklet Regulations for the Administration and
Enforcement of the Radiation Control for Health and Safety Act of 1968: HHS Publication FDA 88-8035.
This publication, containing the full details of laser safety requirements, can be obtained directly from
the FDA, or downloaded from their web site at http://www.fda.gov/cdrh.
Electrical Safety
Failure to follow the guidelines described in this section may result in electrical shock or
equipment damage.

Gocator Line Profile Sensors - User Manual Safety and Maintenance • Handling, Cleaning, and Maintenance • 17
Sensors should be connected to earth ground
All sensors should be connected to earth ground through their housing. All sensors should be mounted
on an earth grounded frame using electrically conductive hardware to ensure the housing of the sensor
is connected to earth ground. Use a multi-meter to check the continuity between the sensor connector
and earth ground to ensure a proper connection.
Minimize voltage potential between system ground and sensor ground
Care should be taken to minimize the voltage potential between system ground (ground reference for
I/O signals) and sensor ground. This voltage potential can be determined by measuring the voltage
between Analog_out- and system ground. The maximum permissible voltage potential is 12 V but should
be kept below 10 V to avoid damage to the serial and encoder connections.
See Gocator I/O Connector on page 495 for a description of the connector pins.
Use a suitable power supply
The +24 to +48 VDC power supply used with Gocator sensors should be an isolated supply with inrush
current protection or be able to handle a high capacitive load.
Use care when handling powered devices
Wires connecting to the sensor should not be handled while the sensor is powered. Doing so may cause
electrical shock to the user or damage to the equipment.
Handling, Cleaning, and Maintenance
Dirty or damaged sensor windows (emitter or camera) can affect accuracy. Use caution when
handling the sensor or cleaning the sensor's windows.
Keep sensor windows clean
Use dry, clean air to remove dust or other dirt particles. If dirt remains, clean the windows carefully with
a soft, lint-free cloth and non-streaking glass cleaner or isopropyl alcohol. Ensure that no residue is left
on the windows after cleaning.
Turn off lasers when not in use
LMI Technologies uses semiconductor lasers in Gocator sensors. To maximize the lifespan of the sensor,
turn off the laser when not in use.
Avoid excessive modifications to files stored on the sensor
Settings for Gocator sensors are stored in flash memory inside the sensor. Flash memory has an
expected lifetime of 100,000 writes. To maximize lifetime, avoid frequent or unnecessary file save
operations.
Environment and Lighting
Avoid strong ambient light sources
The imager used in this product is highly sensitive to ambient light hence stray light may have adverse
effects on measurement. Do not operate this device near windows or lighting fixtures that could
influence measurement. If the unit must be installed in an environment with high ambient light levels, a
lighting shield or similar device may need to be installed to prevent light from affecting measurement.

Gocator Line Profile Sensors - User Manual Safety and Maintenance • Environment and Lighting • 18
Avoid installing sensors in hazardous environments
To ensure reliable operation and to prevent damage to Gocator sensors, avoid installing the sensor in
locations
lthat are humid, dusty, or poorly ventilated;
lwith a high temperature, such as places exposed to direct sunlight;
lwhere there are flammable or corrosive gases;
lwhere the unit may be directly subjected to harsh vibration or impact;
lwhere water, oil, or chemicals may splash onto the unit;
lwhere static electricity is easily generated.
Ensure that ambient conditions are within specifications
Gocator sensors are suitable for operation between 0–50° C and 25–85% relative humidity (non-
condensing). Measurement error due to temperature is limited to 0.015% of full scale per degree C.
The Master 400/800/1200/2400 is similarly rated for operation between 0–50° C.
The storage temperature is -30–70° C.
The sensor must be heat-sunk through the frame it is mounted to. When a sensor is properly
heat sunk, the difference between ambient temperature and the temperature reported in the
sensor's health channel is less
than 15° C.
Gocator sensors are high-accuracy devices, and the temperature of all of its components must
therefore be in equilibrium. When the sensor is powered up, a warm-up time of at least one
hour is required to reach a consistent spread of temperature in the sensor.

Gocator Line Profile Sensors - User Manual 19
Getting Started
The following sections provide system and hardware overviews, in addition to installation and setup
procedures.
System Overview
Gocator sensors can be installed and used in a variety of scenarios. Sensors can be connected as
standalone devices, dual-sensor systems, or multi-sensor systems.
Standalone System
Standalone systems are typically used when only a single Gocator sensor is required. The sensor can be
connected to a computer's Ethernet port for setup and can also be connected to devices such as
encoders, photocells, or PLCs.

Gocator Line Profile Sensors - User Manual Getting Started • System Overview • 20
Dual-Sensor System
In a dual-sensor system, two Gocator sensors work together to perform profiling and output the
combined results. The controlling sensor is referred to as the Main sensor, and the other sensor is
referred to as the Buddy sensor. Gocator's software recognizes three installation orientations: Opposite,
Wide, and Reverse.
A Master 400/800/1200/2400 must be used to connect two sensors in a dual-sensor system. Gocator
Power and Ethernet to Master cordsets are used to connect sensors to the Master.