Rice Lake Benchmark HD Series Bedienungsanleitung
Benchmark® HD Series
Heavy Duty Bench Scale
Installation Manual
PN 93631 Rev A
January 6, 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 Signal Definitions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Benchmark HD Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Unpacking the Benchmark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1.1 Leveling the Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Connecting the Load Cell Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Grounding the Scale Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Load Cell Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Benchmark Series Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Benchmark HD Series
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
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars
Introduction
© Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
This manual provides reference information to install and wire the Benchmark HD series single-point bench-top scale.
Figure 1-1. Benchmark HD Series 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 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.
Failure to heed may 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.
Keep hands, feet and loose clothing away from moving parts.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING
Benchmark HD Series
2 Visit our website www.RiceLake.com
1.2 Benchmark HD Specifications
Load Cell, NTEP Certified
IP67 Aluminum, environmentally sealed
Output Impedance
350
Maximum Overload
200%
Overload Protection
Five-point independently adjusted
Cable Length
10' (3 m)
Compensated Temperature Range
14°F – 104°F (-10°C – 40°C)
Dimensions and Capacities
Warranty
Two-year limited warranty
Approvals
NTEP
CC 06-010, Class III 5,000d
Measurement Canada AM-5625, Class III 5,000d
1.3 Calibration
It is recommended that the scale be “exercised” by loading it to near capacity two or three times before calibration to be certain
that everything is seated. To calibrate the Benchmark HD scale place test weights on the scale platform equal to 70 - 100% of
the scale capacity. If several weights are used, distribute them evenly around the platform.
See the indicator manual for specific indicator calibration procedures.
Size Capacity Height
30'' x 30'' (762 mm x 762 mm) 250 lb / 125 kg 8.75'' (222.25 mm)
500 lb/ 250 kg
36'' x 36'' (914.4 mm x 914.4 mm) 250 lb / 125 kg
500 lb / 250 kg
Table 1-1. Benchmark HD Specifications
Installation
© Rice Lake Weighing Systems ● All Rights Reserved 3
2.0 Installation
This section provides an overview of the Benchmark HD installation procedure and grounding information.
2.1 Unpacking the Benchmark
Immediately after unpacking, visually inspect the Benchmark HD to ensure that the unit is undamaged. The shipping carton
should contain the bench scale and this manual. If the scale was damaged in shipment, notify Rice Lake Weighing Systems
and the shipper immediately.
2.1.1 Leveling the Scale
Place the scale in the desired location. Lift off the deck cover and locate the bubble level (Figure 2-1).
Figure 2-1. Top Plate Removed Showing Bubble Level Location
Adjust the four corner feet until the scale is level and all feet contact the support surface, so that the scale does not rock.
Lock the jam nuts on the feet when the final level is correct.
2.2 Connecting the Load Cell Cable
The Benchmark HD comes with a standard 10' of color-coded load cell cable.
The load cell is temperature compensated for an exact length of 10'.
Do not cut the load cell cable.
See the indicator manual to determine the proper load cell cable input connectors. Use the following color codes to wire the
load cell cable. Once complete, install the top cover for the bench scale back onto the scale.
2.3 Grounding the Scale Base
Bench scales can build up static electricity charge during weighing operations. If powerful enough, this charge can travel
through the load cell cable to the indicator. To prevent this, all bench scales should be adequately grounded so that static
charges and transient electrical surges can drain directly to the ground. A recommended practice is to connect the scale base
to an AC ground circuit using at least #12 wire. All Benchmark series scales have either a grounding screw or a hole for such a
grounding screw located on the bottom of the lower frame for this purpose.
6-Wire Color Code Function
Red + Signal
White - Signal
Green + Excitation
Black - Excitation
Blue + Sense
Yellow - Sense
Table 2-1. Load Cell Wiring
Bubble Level Location
Benchmark HD Deck Cover
IMPORTANT
Installation
© Rice Lake Weighing Systems ● All Rights Reserved 5
The following replacement parts are available for Benchmark HD scales (PN 93414, 93415, 93416 and 93417):
Part No. Item No. Description Qty.
93775 1 Top Cover 30" x 30" 1
93768 1 Top Cover 36" x 36"
49788 2 Screw Cap, 5/16 - 18NC x 32 8
15153 3 Lock Washer, 5/16 Regular 8
93758 4 Top Frame 30" x 30" 1
93760 Top Frame 36" x 36"
26407 5 Self Adhesive Bumper 30/36
87358 6 Shim, 3/16 x 2 - 3/8 x 3 SST 2
188687 7 Load Cell 250 lb Scale 1
188689 Load Cell 500 lb Scale
93759 8 Bottom Frame 1
14742 9 Hex Head Bolt, 3/8 - 16NC x 1 4
14649 10 Hex Jam Nut, 3/8 - 16NC 4
74585 11 Bench Scale Foot 4
15051 12 Set Screw, 1/2 - 20NF x 3/4 1
15410 13 Bubble Level 1
52342 14 Label Roll 1
Table 2-2. Benchmark HD Assembly Replacement Parts
Benchmark HD Series
6 Visit our website www.RiceLake.com
3.0 Maintenance
This section provides additional information about the Benchmark HD.
3.1 Troubleshooting
Symptom Probable Cause Remedy
No display Power disconnected Connect power
Cable cut or disconnected Repair cable
Signal leads incorrectly wired at indicator Connect according to indicator manual
Display stays at zero Incorrect load cell cable connections Connect according to manual
Faulty indicator Service the indicator
Erratic weight display Vibration near the scale Remove the source of vibration, or adjust the digital
averaging of the indicator to minimize the erratic display
Scale is not level Level the scale
Water damage to the load cell or load cell cable Replace the load cell
Faulty indicator Service the indicator
Loose load cell screws Tighten the correct torque
Faulty load cell Test and replace if necessary
Consistently low weights Indicator is not properly adjusted to zero Zero the indicator correctly
Scale deck cover is binding Obtain adequate clearance
Overload stops set too high Reset overload stops correctly
Indicator not calibrated for scale Calibrate
Faulty load cell Test and replace if necessary
Table 3-1. Troubleshooting Guide
Andere Handbücher für Benchmark HD Series
1
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4
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