Rice Lake Farm Bars User manual
Farm Bars
Animal Scale
Operation Manual
PN 127468 Rev CFebruary 9, 2023
© 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
Revision History
© Rice Lake Weighing Systems ● All Rights Reserved 3
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.
Revision History
This section tracks and describes manual revisions for awareness of major updates.
Revision Date Description
C January 18, 2023 Revision history established; updated calibration instructions
Table i. Revision Letter History
Contents
U Series Farm Bars
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Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.0 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1.1 Front Panel Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.1.2 Alternative Zero Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1.3 EDP Command Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.0 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Drifting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Abnormally Large Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.0 Load Cell Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 5
1.0 Introduction
This manual is intended for use by individuals responsible for installing and servicing Farm Bars. Placing a set of Farm Bars
beneath any platform or container allows it to function as a weigh scale. Various indicator combinations can be matched to the
Farm Bar to meet specialized applications.
Manuals and additional resources are available from Rice Lake Weighing Systems at www.ricelake.com/manuals
Warranty information is available at www.ricelake.com/warranties
1.1 Safety
Safety Definitions:
DANGER: 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.
WARNING: 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.
CAUTION: Indicates a potentially hazardous situation that, if not avoided, could result in minor or moderate injury.
IMPORTANT: 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.
WARNING
Failure to heed could result in serious injury or death.
DO NOT allow minors (children) or inexperienced persons to operate this unit.
DO NOT operate without all shields and guards in place.
DO NOT jump on the scale.
DO NOT use for purposes other than weight taking.
DO NOT place fingers into slots or possible pinch points.
DO NOT use any load bearing component that is worn beyond 5% of the original dimension.
DO NOT use this product if any of the components are cracked.
DO NOT exceed the rated load limit of the unit.
DO NOT make alterations or modifications to the unit.
DO NOT remove or obscure warning labels.
Keep hands, feet and loose clothing away from moving parts.
U Series Farm Bars
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2.0 Technical Specifications
Figure 2-1. Farm Bar Dimensions
Table 2-2. Farm Bar 5,000U Dimensions
Table 2-3. Farm Bar 10,000U Dimensions
NOTE: B equals dimension A minus 7 inches.
D equals dimension C plus 6 inches.
IMPORTANT: Specify spread distance if any other length is required.
A B C D E
22.00 in 15.00 in 19.75 in 25.75 in 4.00 in
Table 2-1. Farm Bar 2,500U Dimensions
A B C D E
26.00 in 19.00 in 23.75 in 29.75 in 4.00 in
33.00 in 26.00 in 30.75 in 36.75 in 4.00 in
36.00 in 29.00 in 33.75 in 39.75 in 4.00 in
40.00 in 33.00 in 37.75 in 43.75 in 4.00 in
44.00 in 37.00 in 41.75 in 47.75 in 4.00 in
48.00 in 41.00 in 45.75 in 51.75 in 4.00 in
A B C D E
32.00 in 25.00 in 29.75 in 35.75 in 4.00 in
36.00 in 29.00 in 33.75 in 39.75 in 4.00 in
48.00 in 41.00 in 45.75 in 51.75 in 4.00 in
60.00 in 53.00 in 57.75 in 63.75 in 4.00 in
72.00 in 65.00 in 69.75 in 75.75 in 4.00 in
A
B
Primary Bar
Secondary Bar
Instrument
Connection
Mounting Holes
4 1/4 in
E
C
D
5
8 ft
Interconnecting
Cable in
Technical Specifications
© Rice Lake Weighing Systems ● All Rights Reserved 7
Table 2-4. Specifications
Specifications 2500 U 5000 U 10000 U
Capacity 2500 lb 5000 lb 10000 lb
Nominal Output 2.5 mV/V
Max. Excitation Voltage +15V
Overall Accuracy Max. ±0.25% of Capacity
Overall Accuracy Typical ±0.10% of Capacity
Overall Accuracy (Light Load) ±0.25% of Reading
Compensated Temp. Range 15 to 100°F
Operating Temp. Range -25 to 110°F
Overload Capacity 150% of Rated Capacity
Shipping Weight 48 lb 69 lb 110 lb
U Series Farm Bars
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3.0 Installation
The following points help ensure proper installation of the Farm Bars. If further assistance is required, please contact the
nearest factory or dealer.
IMPORTANT: When planning an outdoor location for the Farm Bars, choose a site which will allow for adequate drainage
away from the scale. Immersing the load cells in water can damage the load cells and void the warranty.
• Install the Farm Bars on a firm, level surface. The Farm Bars do not have to be installed perfectly level, but a substantial
slope decreases accuracy. All weight transfer must take place through the pads at the end of each Farm Bar. Ensure
there is no contact between the ground and the center of the load bar.
• Install the Farm Bars in the upright position. This allows for accurate weighing and help keeps any foreign material out of
the Farm Bars.
• Do not drill into or weld onto the Farm Bars as this may cause internal structural or electrical damage. Secure the Farm
Bars to the weighing platform using the mounting lugs supplied.
• Install the cable so that it is not stepped on or run over. Cable failure due to physical damage is not covered under
warranty.
• When constructing the weighing platform, ensure excessive sagging does not occur. This may cause inaccuracies in
weighing and could damage the cable.
Parts List
© Rice Lake Weighing Systems ● All Rights Reserved 9
4.0 Parts List
Figure 4-1. Farm Bar Illustrated Parts
IMPORTANT: Specify length in inches (i.e. 55206-3-33), 2500U only comes in 22" lengths.
Assembly includes, bearing collar, bearing, snap ring, foam seals and set screws.
U Series Farm Bars
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IMPORTANT: Cable length in inches (i.e. 54226-96)
Portable pad 54207PA-1 (Clockwise), 54207PB-2 (Counter Clockwise) direction is determined by looking down from top of
the load bar and determining the direction the stop rod is pointing.
Item No. Part No. Description
1 Consult Farm Bar tube, one hole
2 Consult Farm Bar tube, two holes
3 126864 Label, not Legal for Trade 3.125 x 0.375 blue on white reflective background slitback square
corners loadbars
4 126893 Conn, hose barb for 3/8 ID hose x 1/2 male pipe
5 126979 3/8-16 in x 1-1/2 HCS GS 8 zinc (5,000U and 10,000U only. For 2,500U consult factory)
6 127103 Label, warranty for 5,000U scale black text on white vinyl adhesive backed
7 127556 Cable assy, 4 pin male conn 144 in for animal scale indicator
8 127770 Pad, 2,5000U/5,000U/10,000U 1 KLU/2KLU/4KLU painted
9 127774 Load pin, 2,500U/5,000U/10,000U/0.1 -> 4KLU zinc plated
10 127775 Spacer, load pin 2,500U 5,000U 0.1KLU -> 2KLU zinc plated
127796 Spacer, load pin 10,000U, Zinc plated
11 127777 Connector assy, inline w/3 ft SST flex conduit
12 127764 Load cell assembly, 2,500U
127782 Load cell assembly, 5,000U
127792 Load cell assembly, 10,000U
13 128136 Rivet, blind pop 1/8 dia 0.313 to 0.375 grip range AB46 aluminum steel mandrel
14 131509 Decal, load bar 2.5 x 9.5 black vinyl for livestock scale
15 15160 Washer, lock 3/8 (5,000U and 10,000U only. For 2,500U consult factory)
16 15161 Washer, flat 3/8 SST (5,000U and 10,000U only. For 2,500U consult factory)
Table 4-1. Farm Bar Parts List
Table of contents
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