Rice Lake Load Ranger Series User manual

Load Ranger
Wheel Weigh Pad System
Technical Manual
PN 189612 Rev BSeptember 11, 2019

An ISO 9001 registered company
© Rice Lake Weighing Systems. All rights reserved.
Rice Lake Weighing Systems® is a registered trademark of
Rice Lake Weighing Systems.
All other brand or product names within this publication are trademarks or
registered trademarks of their respective companies.
All information contained within this publication is, to the best of our knowledge, complete and
accurate at the time of publication. Rice Lake Weighing Systems reserves the right to make
changes to the technology, features, specifications and design of the equipment without notice.
The most current version of this publication, software, firmware and all other product
updates can be found on our website:
www.ricelake.com

Contents
© Rice Lake Weighing Systems ● All Rights Reserved i
Contents
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.ricelake.com/training
or obtained by calling 715-234-9171 and asking for the training department.
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Available Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.0 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Choosing the Weighing Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 Positioning the Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Correct Platform Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4.1 Wireless Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4.2 Hybrid Wireless Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4.3 Wired Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Weighing of Objects or Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Weigh Pad Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1.1 Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1.2 Display Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.3 Assign ID Numbers and Initialize Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Ai-1 Indicator Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2.1 Pairing Ai-1 Indicator with Weigh Pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.3 Standard Ai-1 Indicator Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.1 Zeroing Weigh Pads with Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.2 Tare Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4 Weighing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.1 Wheel-Weighing System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.2 Axle-Weighing System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.5 Battery Recharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.6 Input Texts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.7 Vehicle Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.7.1 Create Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.7.2 Modify Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.7.3 Delete Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.7.4 Select Vehicle on Primary Weigh Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.7.5 Deselect Vehicle on Primary Weigh Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.7.6 Temporary Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.7.7 Alphanumeric Search. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.7.8 Index Search . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.8 Print Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.8.1 Default Print Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.9 Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.9.1 Change Setpoint Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Load Ranger Wheel Weigh Pad System
ii Visit our website www.RiceLake.com
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars
4.0 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1 Weigh Pad Technical Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.1 Keyboard Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.1.2 Default Weigh Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.1.3 Metrological Version. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2 Ai-1 Technical Setup Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.1 Configure Touch Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.2 Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2.3 Date and Time Password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.2.4 Printout Headings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.2.5 Shortcuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3 Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.3.1 Center of Gravity Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.0 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1 Calibrate with Pad Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1.1 Complete Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.1.2 Zero Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.2 Calibrate with Ai-1 Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.2.1 Standard Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.2.2 Zero Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.1 Operation Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2 Maintenance and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.3 Accessory Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.3.1 Display Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.3.2 Transport Wheels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.3.3 Aluminum Ramps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.4 Board Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
6.5 Wiring Schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.5.1 Load Cell Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.5.2 Power Supply Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.5.3 RS485 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
6.5.4 Bluetooth Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.6 Calibration Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.7 Messages and Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.7.1 Programming Errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.8 Frequently Asked Questions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.2 Replacement Load Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
7.3 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
7.4 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
Load Ranger wheel weigh pads offer an adaptable, high accuracy solution for vehicle weighing. With unmatched performance,
Load Ranger wireless weigh pads are able to capture wheel or axle weights, either individually or in sets of up to 14 pads.
Besides vehicles, Load Ranger wheel weigh pads can weigh objects and structures with several support points of an array of
sizes and capacities. To simplify operation, Load Ranger wheel weigh pads can be paired with the Ai-1 touchscreen indicator
and thermal printer to provide an all-in-one solution for weight summing and ticket printing.
Manuals and additional resources are available from the Rice Lake Weighing Systems website at www.ricelake.com
Warranty information can be found on the website at www.ricelake.com/warranties
1.1 Safety
Safety Signal Definitions:
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in minor or moderate injury.
Indicates information about procedures that, if not observed, could result in damage to equipment or corruption
to and loss of data.
General Safety
Do not operate or work on this equipment unless this manual has been read and all instructions are understood.
Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Rice Lake
Weighing Systems dealer for replacement manuals.
Failure to heed could result in serious injury or death.
Do not disassemble or tamper with the platforms.
All connections must be made by following applicable standards in the installation area and environment.
Do not install in environments at risk of explosion (except for specific versions).
Do not allow minors (children) or inexperienced persons to operate this equipment.
Ensure the pads and path to enter them is clear of all people and equipment.
Do not overload the platforms beyond the maximum declared load.
Do not use solvents or aggressive substances to clean the platform or weight indicator.
Do not pour liquids on the weight indicator.
Avoid prolonged exposure to atmospheric agents (sun, rain, etc.).
Do not expose the instrument to heat sources.
Do not lean platforms against a wall or object. Always lay platforms flat on the ground.
Always place or anchor the weight indicator and platform on a non-vibrating surface.
Anything not specifically described in this manual is to be considered as improper use of the equipment.
All of the indicator connections must be in accordance with applicable local and state laws within the installation environment.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING

Load Ranger Wheel Weigh Pad System
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1.2 Available Models
1.3 Features
Wheel Weigh Pad Features
• Equipped with an industrial Bluetooth® radio module for ability to communicate with Ai-1 indicator
• Special aluminum alloy loading platform with positioning bands and bubble level
• Integrated wheels and handles for easier transport and positioning
• Built-in ramps with non-slip rubber on the undersides for good grip on all types of surfaces
• Cover plate provides protection of the display and buttons
• Internal NiMH rechargeable battery with 40 hours of battery life
• UL approved external battery charger
• IP67 overall protection rating with watertight connections
Loading Surface
1' 10'' x 1' 4''
(564 x 400 mm)
Loading Surface
2' 6'' x 1' 6''
(750 x 450 mm)
Loading Surface
3' 1'' x 1' 8''
(950 x 500 mm)
RF-XWD
RF-WD
RF-MD
Transport and
Positioning Wheels
Positioning Bands
Loading Surface
Ramps
Handle
Built-in Display
Bubble Level

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 3
Ai-1 Indicator Features
• ABS transport case – 1' x 1' 6'' x 7'' (325 mm x 460 mm x 170 mm)
• Backlit graphic display with touchscreen technology
• Internal rechargeable battery with 10 hours of battery life
• Thermal printer
• Real time clock
• Permanent data storage
• Slot for built-in micro SD
• 24-bit A/D converter, up to 2300 conversions per second
• DB9 RS232 serial port
1.4 Accessories
Aluminum Ramps
The optional aluminum ramps are used to make it easier for a wheel to move onto and off of the platform. This is ideal for
vehicles with small diameter wheels or for vehicles/aircraft moved with towing equipment.
Part No. Description
181881 Aluminum Ramp for Load Ranger MD Models
181882 Aluminum Ramp for Load Ranger WD Models
181883 Aluminum Ramp for Load Ranger XWD Models
Table 1-1. Available Accessories
Multiple Storage
Compartments
Input Connections
DB9 Serial Port
ABS Case
Bluetooth Antenna
Thermal Printer
Power Input
Power Button
Touchscreen Display

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2.0 Setup
Follow the procedures in the section to setup a Load Ranger system.
2.1 Choosing the Weighing Area
Load Ranger wheel weigh pads can be installed on most types of surfaces. For the best results, Rice Lake Weighing Systems
recommends:
• An area that is large enough to allow vehicles to easily maneuver under safe conditions
• A minimum length twice that of the longest vehicle to be weighed
• Flat and level surfaces with a slope of less than 0.5%
• Use on hard surfaces, concrete or asphalt with a hardness of at least 1423 lb/in2 (100 kg/cm2)
• The surface under the weighing area must withstand concentrated loads of at least 1.5 times the maximum capacity of
the scale
• Environments where the temperature is between 14° F and 104° F (-10° C and +40° C)
• Always use the same direction of travel
Weighing area recommendations are important for accurate weighing and to avoid damage to the weigh pads.
Avoid areas at risk of flooding and areas used for common transit. The wheel weigh pads are not designed to be
used as road surfaces and must only by used at the time of weighing according to the conditions stated in
Section 2.3 on page 6.
Figure 2-1. Weighing Area Characteristics
IMPORTANT
< 0.5%

Setup
© Rice Lake Weighing Systems ● All Rights Reserved 5
2.2 Positioning the Platforms
Use the built-in wheels to position and adjust the platforms.
Position the platforms directly in front of the wheels of the vehicle to be weighed.
Do not place hands or feet under the platform when positioning them.
Wear protective gloves and shoes when installing the scale.
The display must be facing outwards in order to correctly transmit the wireless weighing data.
Before positioning the platforms, ensure that the vehicle’s engine is off, with the first gear engaged and the
parking brake activated.
Keep your back straight when lifting the platforms.
1. 2. 3.
CAUTION
CAUTIONWARNING

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Only position platforms when the vehicle is stopped. Never stand in front or behind the vehicle when
positioning the platforms.
2.3 Correct Platform Use
Refer to the transit area and the positioning bands for the proper transit path and weighing location.
Avoid transit over the display to preserve correct operation and to prevent accidental scratches.
Always position the wheel weigh pads so the transit path onto and off of the platform fully utilizes the ramps.
Failure to heed the following could result in equipment damage.
• Do not weigh vehicles carrying liquids when using an axle-weighing system.
• The type and maintenance state of the vehicle being weighed can effect the weighing performance.
• Always keep the same direction of travel once the system has been optimized.
CAUTION
WARNING
IMPORTANT
Transit Area Positioning Bands
IMPORTANT

Setup
© Rice Lake Weighing Systems ● All Rights Reserved 7
2.4 Applications
The Load Ranger weigh pads can be arranged to serve multiple applications. The adjustment from one scenario to another is
made quickly and easily with the wireless and portability features of the Load Ranger system. This section highlights several of
the arrangements available.
2.4.1 Wireless Setup
Two Platforms
Applications include weighing axles of the vehicle individually or trailers with only one axle.
Three Platforms
Applications include weighing small planes, three-wheeled vehicles or trailers with a support pin.
Four Platforms
Applications include weighing two-axle vehicles, trailers, containers or other items with four support points.
The size and capacity of the third platform can
differ from those of the other platforms

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Five Platforms
Applications include weighing two-axle trailers with a support pin. When weighing both directions, a sixth platform can be used.
Six Platforms
Applications include weighing three-axle vehicles or structures with six support points.
The size and capacity of the fifth platform can
differ from those of the other platforms
Optional sixth platform

Setup
© Rice Lake Weighing Systems ● All Rights Reserved 9
2.4.2 Hybrid Wireless Setup
A hybrid wireless system allows for the weighing of vehicles with four to seven axles. These larger applications are possible by
connecting each axle set of weigh pads together with a cable, so that one weigh pad is able to transfer both sets of weigh data
wirelessly to the indicator.
Eight to Fourteen Platforms
Applications include weighing multi-axle vehicles or structures with several support points in a single step.

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2.4.3 Wired Setup
A wired system allows for weighing with two to four connected wheel weigh pads.
Figure 2-2. Recommend Cable Placement
The data communication port is located on the underside of the wheel weigh pad. For the RF-MD the port is located at the
handle end of the platform and is the port further from the edge. For the RF-WD and RF-XWD the port is located at the end
opposite of the platform handles.
The data communication port uses a 5-pin connector and the power connection port uses a 4-pin connector.
No parameters need to be changes to switch from a Bluetooth to an RS485 connection.
Wired Connection Procedure
1. Assign ID numbers to the weigh pads and initialize Bluetooth (Section 3.1.3 on page 13).
2. Pair the Ai-1 indicator with the weigh pads (Section 3.2.1 on page 15).
3. Turn off the weigh pads and the Ai-1 indicator.
4. Connect RS485 cables to the weigh pads data communication ports.
5. Connect the other ends of each RS485 cable to one of the Ai-1 indicator communication ports.
The wheel weigh pads can be connected to any of the RS485 ports on the Ai-1 indicator. The pad ID assigned within
the weigh pad dictates the scale number and it does not need to match the Ai-1 indicator channel number.
6. Turn on all of the weigh pads.
7. Turn on the Ai-1 indicator.  briefly displays on weigh pads (  represents the assigned pad ID number).
   then displays on the weigh pads and they are ready for use.
Cable Positions
Do not pass cables in transit areas, under the load cells or under the central box of the platform.
Note
Note
IMPORTANT
= Position of the cable

Setup
© Rice Lake Weighing Systems ● All Rights Reserved 11
2.5 Weighing of Objects or Structures
The Load Ranger weigh pads can be moved in any position directly below the point in which the structure must be weighed.
Follow the weighing procedure below to weigh objects or structures correctly.
Avoid sharp maneuvers, rapidly lowering the load and accidental crashes into or onto the weigh pads.
Weighing Procedure
1. Lower the load down to an approximate height of 4'' (10 cm) from the ground.
2. Position the load over the platforms.
3. Place the load slowly onto the platforms.
Do not set the load on the weigh pad display. Always position the displays of the platforms towards the outside
of the structure being weighed in order to correctly transmit the weight reading data.
Note
4" (10 cm)
IMPORTANT

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3.0 Operation
The Load Ranger wheel weigh pads can be operated independently or with an Ai-1 indicator. The following section provides an
overview and procedures for both types of applications.
3.1 Weigh Pad Display
Figure 3-1. Wheel Weigh Pad Display with Cover
3.1.1 Key Functions
• Press to turn on the weigh pad display.
• Press and hold until  displays to turn off the weigh pad display.
• Press and hold until displays to scroll through the weigh pad information ( displays after ).
• Press to display the current platform ID number of the weigh pad.
• Press and hold until  displays to zero the weight within 2% of the maximum capacity.
• Press to display and edit the current pin number associated with the weigh pad.
• Press and hold until  displays to tare the current weight on the weigh pad.
• Press to display the pin number and Bluetooth status of the weigh pad.
• Press and hold to turn a x10 multiplier on and off.
• Press to display a diagnosis of the current mode and to test each key by pressing each one when prompted.
• If the automatic key-lock is active, press then , to unlock the keypad.
Item No. Description
1 Model label location (an identical label is located on the underside of the platform)
2 Display – six digit display; 1'' characters
3 NUM – toggles between weight and ID number; functions as a Zero key; used as an Up arrow to navigate menus or to edit a value
4 SET NUM – display and edit pin number; functions as a Tare key; used as a Down arrow to navigate menus or to edit a value
5 SET MODE – displays pin number and Bluetooth status; functions as a x10 multiplier; used as a Right arrow to edit a value
6 DIAG – displays diagnosis and initiates a key test; used as an Enter key to accept an entry at a prompt or when editing a value
7 Power – turns display on/off; displays scale information; used as Cancel within the menu structure
Table 3-1. Wheel Weigh Pad Keys
MODE
SET
DIAG
NUM
SET
NUM
DATA
1
2
3 4 5 6 7

Operation
© Rice Lake Weighing Systems ● All Rights Reserved 13
3.1.2 Display Features
The weigh pad displays the current weight on the platform and applicable annunciators. When paired with the Ai-1 indicator, a
weigh pad displays the assigned platform ID number (PLX) instead of the weight.
Figure 3-2. Weigh Pad Display
Internal battery charge level: Fully charged – Medium charge Low charge
 displays prior to the instrument automatically switching off.
Make sure to charge the battery for at least 12 hours with the supplied charger after initial startup.
Unstable weight indicator.
Zero weight indicator.
3.1.3 Assign ID Numbers and Initialize Bluetooth
1. Press to turn on the wheel weigh pad.
2. Press during startup.  flashes, then  displays.
3. Press three times.  displays.
4. Press to enter the serial menu.  displays.
5. Press to enter the ID settings.
6. Press or to increase or decrease the selected digit and press to move between the digits to enter the
pad ID number.
The first Pad ID number must be 01 and the remaining pad ID numbers must increment in ascending numeric order.
Example: 01, 02, 03. Do not configure two pads with the same ID number. See Figure 3-3 for number positioning.
7. Press to confirm.  displays.
8. Press to enter the Bluetooth initialization menu.  displays.
9. Press to confirm.  displays followed by . displays.
10. Press twice.  displays.
11. Press to confirm.  briefly displays and all the changed parameters are saved.
12. Repeat steps for all wheel weigh pads in the system.
Figure 3-3. Wheel Weigh Pad Positioning
lb
Note
123153
254466

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3.2 Ai-1 Indicator Display
Figure 3-4. Ai-1 Indicator – Primary Weigh Screens
Item No. Description
Axle-Weighing Primary Weigh Screen
1 Zero and tare annunciators
2 Unstable annunciator
3 Time – press within cell to adjust the date and time
4 Gross weight cell – press within cell to make full screen and press again to return; gross weight unit annunciator displays
5 Scale information
6 Gross weight value
7 Battery annunciator; plug annunciator displays when indicator is charging
8 Scale annunciator – S = whole scale weight displayed, 1 = platform ID 1 weight displayed, 2 = platform ID 2 weight displayed, etc.
9 Wheel and axle weight display cell – only displays two axles at a time; press within cell to select platforms for scale
10 Vehicle cell – press within cell to select a vehicle
11 Axles cell – displays total weight of each axle
12 Tare weight cell – press within cell to manually enter a tare weight; tare weight unit annunciator displays
13 Tare weight value
14 Total weight cell – total weight unit annunciator displays
15 Total weight value
16 Zero key – press to zero based on the scale annunciator
17 Indicator message
18 Tare key – press to tare the current weight of all weigh pads; scale annunciator must be on S (whole scale weight displayed)
19 Programmable key 1 – set to M+ by default
20 Programmable key 2 – set to Total by default
21 Programmable key 3; set to Print by default
22 Programmable key 4 – set to More by default
Wheel-Weighing Primary Weigh Screen
23 Wheel and axle weight display cell – displays all connected weigh pads; press within cell to select platforms for scale
24 Center of gravity cell – See Section 4.3 on page 33
25 Vehicle cell – press within cell to select a vehicle
Table 3-2. Ai-1 Indicator – Primary Weigh Screen Descriptions
GROSS
VEHICLE
TOTALTARE
2
1
O O
lb lb
O
lb
Max 6600lb d=1lb Min 20lb (1~2)
08:32
1:
2:
3:
4:
5:
6:
7:
AXLES (lb): N. 0
0
0
0
LOAD THE SCALE
M +TOTAL PRINT >>
S
1
3
2
4
7
6
8
9
10
11
12 13
16 17 18
19 20 21
15
22
5
14
GROSS
AXLES (lb)
GRAVITY CENTRE
TARE
O
lb
O
lb
Max 19800lb d=10lb Min 200lb (1~6)
08:32
LOAD THE SCALE
M +TOTAL PRINT >>
S
VEHICLE
x=------ m
y=------ m
2 0
4 0
6 0
1 0
3 0
5 0
0
0
0
23
24
25

Operation
© Rice Lake Weighing Systems ● All Rights Reserved 15
Figure 3-5. Ai-1 Indicator – Secondary Weigh Screen
3.2.1 Pairing Ai-1 Indicator with Weigh Pads
1. Navigate to the Technical Setup menu. See Section 4.2 on page 31.
2. Press .
3. Press .
4. Press .
Figure 3-6. Select Number of Weigh Pads
5. Select the number of wheel weigh pads to be used.
6. Press .
Item No. Description
1 Vehicles database entry key
2 Weighs List key – press to print the current M+ weigh data
3 Menu key – press to access the operations menu
4 Auto. Total key – press for Weighs to auto print partial total prompt
5 Setpoint key – press to view and edit the Outputs setpoint settings
6 Input Texts key – press to view and edit the Input texts
Table 3-3. Ai-1 Indicator – Secondary Weigh Screen Descriptions
GROSS O
lb
Max 6600lb d=1lb Min 20lb (1~2)
08:32
LOAD THE SCALE
M +
S
VEHICLES
TOTAL PRINT >>
AUTO. TOTAL
WEIGHS LIST SETPOINT
MENU INPUT TEXTS
41
52
63
Calibration
F1
Scale selection
F1
1 scale/s
Number of scales
F1
1
1
F1
2
F2
3
F3
4
F4
5
F5
6
F6
Number of scales 1/3
Cancel OK
PAIR

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7. Press .
8. Press .
9. Press to start pairing process. A prompt displays (Figure 3-7). Do not press anything at this time.
10. Turn off all wheel weigh pads.
11. Turn on the first weigh pad only (pad assigned ID 01).
Figure 3-7. Start Pairing
12. Press to start the pairing process. Connecting... displays alongside the ID number.
13. Once the serial number of the first wheel weigh pad displays, turn on the second wheel weigh pad (assigned ID 02).
Figure 3-8. Pairing
14. Repeat this process until all of the weigh pad pin numbers in the desired system are displayed. Once the last wheel
weigh pad is paired, a prompt displays.
Figure 3-9. Pairing Successful
15. Press to confirm. The Gravity Value Setting keyboard displays.
WWS configuration
F1
WWS pairing
F1
OK
Start pairing?
Please turn on WWS one by one.
WWS pairing
No Yes
Yes
1
2
3
4
WWS paring
100625534
Connecting...
Esc
Pairing terminated successfully.
Receive configuration from
paired WWS?
WWS pairing
No Yes
Yes