Rice Lake ELS Series User manual

ELS Series
Elevated Load Cell Stands
Installation Manual
PN 213042 Rev AApril 27, 2022

© 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 i
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 the current and previous manual revisions for awareness of major updates and when the
updates took place.
Revision Date Description
A April 27, 2022 Initial manual release with the launch of the product
Table i. Revision Letter History

Contents
Elevated Load Cell Stands
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
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Product Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 ELS Series Weigh Stand Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4.1 ELS Mild Steel Kit Varieties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4.2 ELS Stainless Steel Kit Varieties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Grounding Straps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Site Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Width Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Height Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 Support Brace Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6.1 Conveyor Applications Greater Than 3 Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6.2 Conveyor Applications Less Than 3 Feet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.7 Conveyor Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.8 Weigh Stand Installation to the Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.9 Overload Bolt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10 Load Cell Guard Plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.11 Junction Box Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.12 Junction Box Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.12.1 Junction Box Expansion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12.2 Connect to the Indicator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.12.3 Liquid Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.13 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.13.1 Mild Steel Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.13.2 Stainless Steel Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1.1 Load Cell Bearing Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2 Load Cell Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
1.1 Overview
This manual provides installation instructions and maintenance recommendations on the ELS Series elevated load cell stands.
The ELS Series weigh stands are designed to replace existing legs on a conveyor line to create an in-line scale or similar
elevated weighing apparatus. The ELS Series offers kits that are available in three different weight capacities (250 lb, 500 lb
and 1,000 lb) with each having six available configurations that offer varying height and width ranges.
Manuals and additional resources are available from Rice Lake Weighing Systems at www.ricelake.com/manuals
Warranty information can be found on the website at www.ricelake.com/warranties
1.2 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 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 then 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.
Before opening the unit, ensure the power cord is disconnected from the outlet.
Keep hands, feet and loose clothing away from moving parts.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING

Elevated Load Cell Stands
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1.3 Product Dimensions
Figure 1-1. Product Diagram
Letter Kit Variation Minimum Dimension Maximum Dimension
ASmall 22 in (55.88 cm) 28 in (71.12 cm)
Large 29 in (73.66 cm) 36 in (91.44 cm)
B All 30 in (76.20 cm) 66 in (167.64 cm)
C
Small 17 in (43.18 cm) 24 in (60.96 cm)
Medium 25 in (63.50 cm) 36 in (91.44 cm)
Large 37 in (93.98 cm) 54 in (137.16 cm)
D
Small 22 in (55.88 cm) 28 in (71.12 cm)
Medium 29 in (73.66 cm) 40 in (101.60 cm)
Large 41 in (104.14 cm) 58 in (147.32 cm)
Table 1-1. Product Dimensions
A
B
DC

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 3
1.4 ELS Series Weigh Stand Kits
The ELS Weigh Stands come in either mild steel or stainless steel options.
1.4.1 ELS Mild Steel Kit Varieties
ELS-250 Mild Steel Weigh Stands
ELS-500 Mild Steel Weigh Stands
ELS-1000 Mild Steel Weigh Stands
PN Description
212655 ELS-250 Kit, 23-28 in Height, 18-24 in Width
212656 ELS-250 Kit, 29-36 in Height, 18-24 in Width
212569 ELS-250 Kit, 23-28 in Height, 25-36 in Width
212660 ELS-250 Kit, 29-36 in Height, 25-36 in Width
212957 ELS-250 Kit, 23-28 in Height, 37-54 in Width
212958 ELS-250 Kit, 29-36 in Height, 37-54 in Width
Table 1-2. ELS-250 Mild Steel Kits
PN Description
212661 ELS-500 Kit, 23-28 in Height, 18-24 in Width
212662 ELS-500 Kit, 29-36 in Height, 18-24 in Width
212663 ELS-500 Kit, 23-28 in Height, 25-36 in Width
212665 ELS-500 Kit, 29-36 in Height, 25-36 in Width
212953 ELS-500 Kit, 23-28 in Height, 37-54 in Width
212954 ELS-500 Kit, 29-36 in Height, 37-54 in Width
Table 1-3. ELS-500 Mild Steel Kits
PN Description
212666 ELS-1000 Kit, 23-28 in Height, 18-24 in Width
212667 ELS-1000 Kit, 29-36 in Height, 18-24 in Width
212669 ELS-1000 Kit, 23-28 in Height, 25-36 in Width
212670 ELS-1000 Kit, 29-36 in Height, 25-36 in Width
212949 ELS-1000 Kit, 23-28 in Height, 37-54 in Width
212950 ELS-1000 Kit, 29-36 in Height, 37-54 in Width
Table 1-4. ELS-1000 Mild Steel Kits

Elevated Load Cell Stands
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1.4.2 ELS Stainless Steel Kit Varieties
ELS-250 Stainless Steel Weigh Stands
ELS-500 Stainless Steel Weigh Stands
ELS-1000 Stainless Steel Weigh Stands
PN Description
213276 ELS-250 Kit, 23-28 in Height, 18-24 in Width
213278 ELS-250 Kit, 29-36 in Height, 18-24 in Width
213280 ELS-250 Kit, 23-28 in Height, 25-36 in Width
213282 ELS-250 Kit, 29-36 in Height, 25-36 in Width
213283 ELS-250 Kit, 23-28 in Height, 37-54 in Width
213284 ELS-250 Kit, 29-36 in Height, 37-54 in Width
Table 1-5. ELS-250 Stainless Steel Kits
PN Description
213292 ELS-500 Kit, 23-28 in Height, 18-24 in Width
213293 ELS-500 Kit, 29-36 in Height, 18-24 in Width
213294 ELS-500 Kit, 23-28 in Height, 25-36 in Width
213295 ELS-500 Kit, 29-36 in Height, 25-36 in Width
213296 ELS-500 Kit, 23-28 in Height, 37-54 in Width
213297 ELS-500 Kit, 29-36 in Height, 37-54 in Width
Table 1-6. ELS-500 Stainless Steel Kits
PN Description
213304 ELS-1000 Kit, 23-28 in Height, 18-24 in Width
213305 ELS-1000 Kit, 29-36 in Height, 18-24 in Width
213306 ELS-1000 Kit, 23-28 in Height, 25-36 in Width
213307 ELS-1000 Kit, 29-36 in Height, 25-36 in Width
213308 ELS-1000 Kit, 23-28 in Height, 37-54 in Width
213309 ELS-1000 Kit, 29-36 in Height, 37-54 in Width
Table 1-7. ELS-1000 Stainless Steel Kits

Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 5
1.5 Grounding Straps
The grounding straps connected to the ELS weigh stands are used to ground the conveyor to the floor. If the system is not
properly grounded, static can build up and cause damage to the load cells once the static discharges. The grounding straps
protect the load cells by providing an alternate path for the static discharge to travel.
The grounding straps are located on each load cell assembly and connect the load cell top plate to the mounting plate.
Figure 1-2. Grounding Straps
The grounding straps must be connected to the weigh stands at all times.
Grounding Strap
IMPORTANT

Elevated Load Cell Stands
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2.0 Installation
This section provides procedures for the proper installation of the ELS Series weigh stands.
2.1 Site Selection
Select a site where there is no chance of overload weights crossing the platform. Avoid areas where the scale might receive
damaging side impacts from wheels or forklift tines, shock damage from falling objects or where water may damage the scale.
The indicator cable must be protected against crushing, cutting and moisture damage. If the chosen site has such potential
dangers, some method of protection, such as running the cable in conduit, will be necessary.
In operation, the ELS weigh stands must be level within 1/8 of an inch. Either choose a site where the floor is close to this
standard to avoid excessive shimming, or modify the floor at the chosen site to meet this standard.
Ensure the area is clear and free of any debris.
2.2 Site Preparation
To prepare the site for the ELS weigh stands.
1. Remove the existing conveyor, if needed.
2. Remove the existing conveyor stands that will be replaced with the ELS weigh stands, if needed.
3. Clean the site thoroughly to ensure the area is free of any debris.
2.3 Unpacking
Immediately after unpacking, visually inspect the ELS weigh stands to ensure all components are included and undamaged.
If any parts are damaged or missing, notify Rice Lake Weighing Systems and the shipper immediately.
2.4 Width Adjustment
1. Loosen the load cell cable mounting clips.
2. Measure the distance between the center points of the lower conveyor channels. See Figure 2-1 for the center points
marked along the conveyor channels.
Figure 2-1. Conveyor Channel Measurement Points
3. Remove the bolts from the weigh stand mounts. See Figure 2-2.
4. Adjust the width of the weigh stands to the measurement found in Step 2.
The conveyor channels must be centered on the conveyor mount plates. The width of the weigh stands can be
adjusted in 1-inch increments.
5. Align the width adjustment of the weigh stand mounts to the nearest overlapping bolt holes.
6. Hold a tubing spacer within the bolt holes inside the width adjustment bar.
IMPORTANT
Note

Installation
© Rice Lake Weighing Systems ● All Rights Reserved 7
7. Install the 3/8-16 x 2-1/2 inch bolts through the outer and inner width adjustment channel and tubing spacers.
8. Attach the lock washer and nut to secure the bolt.
Ensure bolts are placed at the overlapping left and right extremes with the others equally between.
Each weigh stand must have 4 bolts installed in the width channel. See Figure 2-2.
Figure 2-2. Width Bolt and Tubing Spacer Installation
9. Repeat the width adjustment steps for each weigh stand.
2.5 Height Adjustment
The height of the weigh stands needs to be adjusted within an inch less than the needed height of the weigh stands and the
existing conveyor. The provided shims allow the weigh stands to be adjusted to the needed height within a 1/16 of an inch. See
Section 8. on page 10 for shim adjustment.
1. Loosen the load cell cable mounting clips.
2. Measure the height of the old conveyor legs that the weigh stands are replacing.
3. Remove the four 3/8-16 x 1 inch bolts from the weigh stand mounts. See Figure 2-3.
4. Adjust the weigh stand mounts to the 1-inch increments below desired height.
The height assembly can be adjusted in 1-inch increments. Shims provide height adjustment within 1/16 of an inch.
5. Insert the 3/8-16 x 1 inch bolts (that were removed in Step 3) through the weigh stand mount height channel.
IMPORTANT
Tubing Spacer
Note

Elevated Load Cell Stands
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6. Attach the lock washers and nuts to secure the bolts.
Place one bolt in both the top and bottom overlapping extremes and place other bolts equally between.
Figure 2-3. Height Bolt Installation
7. Repeat the height adjustment steps for each weigh stand mount.
Final height adjustment will need to be done when weigh stands are installed to the floor. See Section 8. on page 10.
2.6 Support Brace Installation
The ELS weigh stands require two support braces to be installed to the stands. A support brace is made up of an outer
adjustable tubing and an inner adjustable tubing. The load cells must be positioned to the same orientation when installing the
support braces on the weigh stands. If the distance between each weigh stand is less than 3 ft, only the outer support brace is
needed for the installation of the support brace (Section 2.6.2 on page 10).
2.6.1 Conveyor Applications Greater Than 3 Feet
1. Measure the length of the conveyor frame to determine the length for the support braces.
The conveyor needs to overhang weigh stand 3-6 inches at each end.
2. Insert the inner adjustable tubing into the outer adjustable tubing.
3. Align the ends of the support braces to the provided holes on the weigh stands.
The load cells must be in the same orientation before installing the support braces on the weigh stands.
IMPORTANT
Note
Note
Note

Installation
© Rice Lake Weighing Systems ● All Rights Reserved 9
4. Install a 3/8-16 x 2-1/2 inch bolts, washers and nuts from the parts kit through the ends of the support braces and the
weigh stands.
Figure 2-4. Support Brace Stand Attachment
The support braces must be installed to the weigh stands so they are touching both the height and width
channels.
5. Adjust the length for the weigh stands and support braces to the measured length.
6. See Section 2.6 on page 8 to install the conveyor at this time.
7. Mark drill hole locations on the inner adjustable tubing using provided holes from outer adjustable tubing as a guide.
8. Drill 7/16 inch holes through the inner adjustable tubing.
9. Install two 3/8-16 x 2-1/2 inch bolts provided from the parts kit through holes created for the support brace.
Figure 2-5. Support Brace Assembly
Do not exceed a length of 6 feet in length for the support braces.
IMPORTANT
IMPORTANT

Elevated Load Cell Stands
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2.6.2 Conveyor Applications Less Than 3 Feet
1. Measure the length of the conveyor frame to determine the length for the support braces.
2. Attach one end of each support brace to one of the weigh stands.
Figure 2-6. Support Brace Install
3. Rest the other sides of the support braces on the other weigh stand.
4. See Section 2.6 on page 8 to install the conveyor at this time.
The load cells must be in the same orientation before installing the support braces on the weigh stands.
5. Mark the locations where the bolts will be installed to the other weigh stand.
6. Drill a 7/16 inch through the top and bottom of the support braces.
7. Align the drilled holes of the support braces to the other weigh stand.
8. Install the support braces on the other weigh stand.
Note

Installation
© Rice Lake Weighing Systems ● All Rights Reserved 11
2.7 Conveyor Installation
The ELS weigh stands have three holes and two slots on the top of each mounting plate to accommodate existing hole patterns
on the conveyor channel. Before drilling through the conveyor channel, assess the usage of any existing holes when installing
the conveyor onto the mount plates.
1. Set the existing conveyor onto the ELS weigh stands with the conveyor channel centered on the mounting plates.
The ELS weigh stands must be 3-6 inches inside the ends of the conveyor to prevent load cell damage.
Figure 2-7. Conveyor Placement onto Weigh Stands
2. Align the existing conveyor holes to the bolt holes or slots of the mounting plate.
Two bolts must be used per mounting plate, utilizing one option from each end of the mounting plate.
3. Drill holes through the conveyor channel, if needed, to have two attachment points per mounting plate.
4. Install the bolts from the previous conveyor stands through the conveyor channel and the mounting plate.
Figure 2-8. Conveyor Installation onto Mounting Plate
5. Repeat Steps 2 through 4 for installing the conveyor on each mounting plate.
6. See Section 2.6 on page 8 to finish installing the support braces
IMPORTANT
Note

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2.8 Weigh Stand Installation to the Floor
1. Make final positioning adjustments to the weigh stands.
2. Adjust the jack bolts to level the weigh stands.
3. Install the shims to support needed overall height of the weigh stands, as needed.
Figure 2-9. Shim Installation
4. Mark where the concrete anchors will be drilled onto the floor.
5. Drill holes through the concrete anchor holes large enough to allow the concrete anchors to be installed properly.
6. Check that the drilled holes for the concrete anchors are free of debris. Use compressed air to blow out holes as
needed.
7. Install the concrete anchors through the weigh stand bases and into the drilled holes.
Figure 2-10. Securing ELS Weigh Stands
8. Hand tighten the concrete anchor nuts and washers on to the concrete anchors.
9. Make final leveling adjustments, if needed.
10. Tighten the concrete anchor nuts.
Jack Bolt Concrete Anchor Holes

Installation
© Rice Lake Weighing Systems ● All Rights Reserved 13
2.9 Overload Bolt Adjustment
1. Remove the load cell guard plates.
The load cell guard plates and the hardware need to be saved for a future procedure (Section 2.10 on page 13).
2. Load the maximum product weight to be weighed on the conveyor above load cell mount. Do not exceed the maximum
capacity of the load cell.
3. Hand-turn the overload bolt clockwise until it touches the bottom of the load cell.
4. Slightly turn the bolt counterclockwise, so there is just a paper size gap between the overload bolt and the load cell.
Figure 2-11. Overload Bolt Location
5. Hold overload bolt and tighten the jam nut.
6. Repeat the adjustment steps for each load cell.
Turning the overload bolt counterclockwise allows the cell to flex when weight is added, yet still be close enough to
provide overload protection.
2.10 Load Cell Guard Plate
The load cell guards for the ELS Series weigh stands come shipped with two screws installed on the top and bottom sides of
the load cell guard plate, protecting the load cell during shipment. Once the screws are removed, the nylon washers from the
bottom screws will be installed onto the top side screws, between the mounting plates and the load cell guards. Installing two
nylon washers to the top screws allows a clearance between the load cell guards and bottom mount plates.
1. Install the top screws on the load cell guard with the addition of the nylon washers from the bottom screws.
The bottom screws and bottom lock washers are no longer needed.
Figure 2-12. Top Screw Install
2. Repeat load cell guard installation for each load cell mount.
Note
Overload Bolt
Jam Nut
Note
Note
Nylon Washer
Lock Washer

Elevated Load Cell Stands
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2.11 Junction Box Installation
1. Verify there are no load cell mounting clips along the width assembly of the ELS Weigh Stand that will obstruct
installation on the junction box.
2. Remove the load cell cable mounting clips, if needed.
Figure 2-13. Load Cell Cable Mounting Clip Removal
3. Install the junction box onto the ELS weigh stand width assembly.
Figure 2-14. Junction Box Installation

Installation
© Rice Lake Weighing Systems ● All Rights Reserved 15
2.12 Junction Box Wiring
All TuffSeal® junction box models have been designed to connect and trim up to four load cells per board.
1. Route the load cell wires from the load cell through the load cell cable mounting clips and into the junction box.
Do not tighten the load cell cable mounting clips yet.
2. Push in and hold the quick-connect lever of the wire connectors with a small screwdriver.
3. Insert the wires into the appropriate wire openings for each load cell (Table 2-1).
4. Release the screwdriver to allow the spring-loaded gate to close and lock the wire in place.
Do not cut load cell cables.
Figure 2-15. Junction Box Board
Table 2-1. Cable Color Coding
For junction box trimming, refer to TUFFSeal® Installation Manual (PN 184804).
Cable Code Designated Color
+Excitation Red
-Excitation Black
+Signal Green
-Signal White
Shield Bare
Note
IMPORTANT
JP4
PT4 PT3
JP3
JP2
PT1
1
EXP
PT2
JP1
1
CELL4
1
CELL1
1
CELL3
1
CELL2
1
IND
-EX
-SI
SHD
+SI
+EX
M
-SI
S2C
+SI
+EX
-EX
-SI
SHD +SI
+EX
-EX
-SI
SHD
+SI
+EX
+SI
-SI
-EX
SHD
-EX
SHD
+EX
+SE
-SE
Load Cell 4 Load Cell 3
Load Cell 1 Load Cell 2
Note

Elevated Load Cell Stands
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5. Wind each loose load cell cable to securely fit under the weigh stand channel.
6. Put the wound load cell cables under each weigh stand channel.
7. Attach the wound load cell cables to the weigh stand channel using the provided zip ties.
The wound load cell cables need to lay flat underneath the weigh stand channel.
Figure 2-16. Securing the Load Cell Cable
8. Tighten the load cell cable mounting clamps.
2.12.1 Junction Box Expansion
It is possible to use this junction box with other combinations. Use the expansion port on the main board to connect multiple
junction boxes in a series to accommodate more than two ELS weigh stands. Contact Rice Lake Weighing Systems for
additional details on applications involving more than two weigh stands.
Figure 2-17. Junction Box Expansion Board Location
Note
Wound Load Cell Cable
JP
P
P
PT4
T3
J
P
3
JP2
PT
1
1
PT
2
1
1
1
1
1
-
EX
-
SI
S
H
D
+SI
+
EX
-SI
+S
I
+EX
-EX
-
SI
S
H
D
+SI
+EX
-
E
X
-SI
SH
D
H
H
+SI
+SI
-
S
I
-EX
S
H
D
-
EX
S
H
D
+EX
+S
E
S
S
-SE
+EX
1
EXP I
M
-SI
+SI
-EX
SH
D
+EX
+SE
-SE
Junction Box Expansion Location