Rice Lake BenchMark HE-X Manuel utilisateur
BenchMark® HE-X
Hostile Environment Extreme Bench Scales
Technical Manual
PN 198967 Rev BMay 19, 2020
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
2.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Leveling the Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.3 Connecting the Load Cell Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.4 Grounding the Scale Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.5 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.6 Overload Stop Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.7 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.0 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Load Cell Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
This manual provides reference information to install and wire the BenchMark HE-X Hostile Environment Extreme Bench Scale.
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 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 and feet away from moving parts.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING
BenchMark HE-X
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2.0 Installation
This section provides an overview of the BenchMark HE-X installation procedure and grounding information.
2.1 Unpacking
Immediately after unpacking, visually inspect the scale to ensure that the unit is undamaged. The shipping carton should
contain the bench scale and this manual. If the bench scale was damaged in shipment, notify Rice Lake Weighing Systems and
the shipper immediately.
2.2 Leveling the Scale
1. Place the scale in the desired location that is reasonably level and free of unnecessary vibrations and air currents.
2. Lift off the scale top cover and locate the level bubble.
3. Adjust the four corner feet on the scale base until the level bubble and all feet contact the support surface so the scale
does not rock.
4. Lock the jam nuts on the feet when the final level is correct.
2.3 Connecting the Load Cell Cable
All models come with 10' color-coded load cell cable.
Do not cut this cable. Cutting this cable voids the warranty.
See the indicator manual to determine the proper load cell cable input connector. Use the following color codes to
wire the load cell cable to the indicator.
Connect Sense and Excitation wires together if using 4-wire system without sense leads.
Color Code Function
Green + Excitation
Black - Excitation
White + Signal
Red - Signal
Yellow Shield
Blue + Sense
Brown - Sense
Table 2-1. Load Cell Wiring - 6 Wire
IMPORTANT
Note
Note
Installation
© Rice Lake Weighing Systems ● All Rights Reserved 3
2.4 Grounding the Scale Base
BenchMark HE-X can build up a static electricity charge during weighing operations. If powerful enough, the charge can travel
through the load cell cable to the indicator. The unit should be adequately grounded so static charges and transient electrical
surges can drain directly to the ground. It is recommended to connect the scale base to an AC ground circuit using at least
#12 ga. wire. The BenchMark HE-X has a grounding hole for a grounding screw located on the bottom of the lower frame.
2.5 Calibration
It is recommended that the scale be exercised by loading it to near capacity two or three times before calibration to ensure
everything is seated. See the specific indicator manual for the proper calibration procedure.
To calibrate, see the following procedure:
1. With no load on scale, place the indicator in its calibration mode and perform a zero calibration.
2. Place certified calibration weights on platform equal to 70%–100% of scale’s capacity. If several weights are used,
distribute them evenly around the platform.
3. Perform a calibration.
4. Remove certified calibration weights and check the zero reading. If necessary, repeat the calibration process.
See the indicator manual for the specific indicator calibration procedure.
2.6 Overload Stop Adjustment
The scale contains an overload protection screw on the bottom of the scale underneath the load cell and overload protection
stops in the four corners.
Figure 2-1. Overload Protection
1. To check or set the overload screw underneath the load cell, place 125% of capacity on the center of the scale.
2. Using the appropriate hex wrench, screw in the overload protection until it touches the load cell then back it off 1/6 turn.
3. Recheck calibration.
4. To check or set the corner overload stops, load the scale corner with 30% of scale capacity then adjust the screw
under that corner to just touch the top frame then tighten the locking nut if one is used.
If no locking nut is used, apply a drop of an industrial sealing agent to seal threads.
5. Repeat this process for each corner.
Ensure the load cell is not touching the overload protection screw below the load cell with the load on the corner.
Note
Overload StopOverload Stop
Overload Screw
IMPORTANT
Note
Installation
© Rice Lake Weighing Systems ● All Rights Reserved 5
Item No. Part No. Description Qty.
1 192293 Frame, Top Assembly 12 x 18 HE-X 1
191534 Frame, Top Assembly 18 x 18 HE-X
191815 Frame, Top Assembly 18 x 24 HE-X
191781 Frame, Top Assembly 24 x 24 HE-X
2 192287 Frame, Bottom Bench Scale 12 x 18 SST 50 lb – 100lb HE-X 1
191522 Frame, Bottom Bench Scale 18 x 18 SST 50 lb – 300 lb HE-X
191649 Frame, Bottom Bench Scale 18 x 18 SST 500 lb – 1,000 lb HE-X
191814 Frame, Bottom Bench Scale 18 x 24 SST 50 lb – 300 lb HE-X
191872 Frame, Bottom Bench Scale 18 x 24 SST 500 lb – 1,000 lb HE-X
191770 Frame, Bottom Bench Scale 24 x 24 SST 50 lb – 300 lb HE-X
191807 Frame, Bottom Bench Scale 24 x 24 SST 500 lb – 1,000 lb HE-X
3 191519 Shim, 0.1196 x 2.07 x 2.90 RLPCBC Load Cell SST 2
4 191518 Nut Coupling 1/2-20 NF Hex SST 4
5 191885 Rubber Foot 1/2-200 UNF SST 4
6 87022 Load Cell, SPT RLPCBC-60 50 lb Scale 1
87023 Load Cell, SPT RLPCBC-60 100 lb Scale
87023 Load Cell, SPT RLPCBC-60 150 lb Scale
87024 Load Cell, SPT RLPCBC-60 200 lb Scale
87024 Load Cell, SPT RLPCBC-60 250 lb Scale
87024 Load Cell, SPT RLPCBC-60 300 lb Scale
87025 Load Cell, SPT RLPCBC-60 500 lb Scale
87026 Load Cell, SPT RLPCBC-60 1,000 lb Scale
7 15154 5/16 Lock Washer Set 8
8 49789 Cap Screw 5/16-18NC x 1.25 Hex Head SST 8
9 15409 Clamp, Cable Nylon 1
10 184359 Screw, 8-32 x 1/4 Hex Head 18-8 SST 1
11 15132 Washer, Lock No. 8 Type A Internal Tooth SST 2
12 189464 Screw, 8-32 x 3/8 Hex Head 18-8 SST 1
13 183530 Screw, Cap 1/2-20NF x 0.50 Hex Head SST 1
14 187195 Level, Spirit Bubble Bulls Eye with Flange Plastic 21 x 16.5 x 9.5 mm 1
15 14963 Screw, Cap 1/4-20NC x 3/4 Hex Head SST F593 2
16 15149 Washer Plain 1/4 SST 4
17 105555 Nut, Coupling 1/4-20 x 0.48 Long SST 4
18 186936 Cover, Top Bench Scale 12 x 18 1
19094 Cover, Top Bench Scale 18 x 18
19095 Cover, Top Bench Scale 18 x 24
19096 Cover, Top Bench Scale 24 x 24
19 151269 Screw, Cap 1/4-20 NC x 1-1/4 Hex Head 18-8 SST 4
20 14954 Screw, Cap 1/4-20NC x 3/8 SST 2
Table 2-2. Parts List
BenchMark HE-X
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3.0 Appendix
This section provides additional information about the BenchMark HE-X.
3.1 Options
Optional ball transfer, roller conveyor tops and custom height columns for attaching indicators to the scale are available.
Consult the factory for available options.
3.2 Troubleshooting
For troubleshooting details, see the following information:
Issue Cause Solution
No display on indicator Power disconnected Connect power
Cable cut or disconnected Repair cable
Signal leads incorrectly wired at indicator Connect according to the manual
Indicator display remains at zero
Incorrect load cell cable connections
Faulty indicator Service indicator
Erratic weight displays
on indicator
Vibration near the scale Remove the source of the vibration or adjust digital filtering of
indicator to minimize erratic display
Scale not level Level the scale
Water damage to the load cell or cable Replace the load cell
Faulty indicator Service the indicator
Loose load cell screws Tighten to correct torque
Faulty load cell Test and replace if necessary
Consistently low weight Indicator not properly adjusted to zero Zero indicator correctly
Scale cover binding Obtain adequate clearance
Overload stops set too high Reset the stops correctly
Indicator not calibrated for scale Calibrate the scale
Faulty load cell Test and replace if necessary
Table 3-1. Troubleshooting
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