Rice Lake BenchMark LP User Manual

®

Benchmark

Low-Profile Bench Scale

Installation Manual

LP

104742 Rev A

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Installation ...................................................................................................................................... 3

2.1 Site Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Unpacking and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Summing Board Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.4 Electrical Interface to Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.0 Adjustments and Calibration .......................................................................................................... 6

3.1 Mechanical Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Corner Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 Calibration Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4.0 Service Information ........................................................................................................................ 8

4.1 Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2 Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.3 Load Cell Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.3.1 Load Cell Wiring to Summing Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.4 Replacement Load Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Benchmark LP Limited Warranty.............................................................................................................. 11

© Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.

Specifications subject to change without notice.

Rice Lake Weighing Systems

November 19, 2014

is an ISO 9001 registered company.

Contents i

ii Benchmark Series Low-Profile Bench Scale

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

The CubeLogic 250 is a four-cell, low-profile scale. Features include:

• Available in sizes from 18 in. x 18 in (.46 m x 46 m) to 36 in x 36 in (.91 m x .91 m).

• Capacities from 100 to 1000 lbs

• Fully electronic low-profile load receivers.

• Four corner-mounted, FM-approved planar beam

• Signal-trim summing board for any necessary corner corrections
that can be sealed for legal-for-trade.

• All models come pre-trimmed; corner

• Load cell cables are held down with replaceable cable ties near each corner.

• Adjustable feet can be used to allow leveling of the sca

Holes are located in the lower frame to be used for permanent mounting applications.This manual is intended for
us

e by service technicians responsible for installing and servicing the Benchmark

Authorized distributors and their employees can view or download this manual from the Rice Lake Weighing
Systems distributor site at: www.ricelake.com

Model Designations

The model identification label is located on the side of the frame. Include both model number and serial number
when ordering replacement parts.

Electrical Grounding

For systems where the scale is connected to a 115 VAC circuit, the indicator must be directly connected to an earth
ground with a ground interface cable of no more than 3

(45 - 453 kg).

load cells.

corrections should not be necessary.

le to compensate for minor floor irregularities.

Ω resistance throughout its length.

, mounted under a stainless steel cover

™

LP low-profile bench scale.

Load Cells

• Four (4) Rice Lake RLBLP (planar beam)

• Rated Excitation: 5-15 VDC

Grade Level Requirement

The supporting surface of the scale (encompassing four feet) must be level within 1/4 in of horizontal.

End Load Capacity

60% of full scale capacity.

Platform Dimensions, Capacity, and Torque Specs

Part No. Capacity Platform Dimensions (LxWxH) Torque To

97662 100 lb 18” x 18” x 1.67” (2.63“ with leveling feet) 50 LB PER IN

97663 250 lb 18” x 18” x 1.74” (2.50“ with leveling feet) 125 LB

97664 500 lb 18” x 18” x 1.93” (2.69“ with leveling feet) 125 LB

97665 100 lb 24” x 24” x 1.69” (2.66“ with leveling feet) 50 LB

97666 250 lb 24” x 24” x 2.07” (2.83“ with leveling feet) 125 LB

97667 500 lb 24” x 24” x 2.26” (3.02“ with leveling feet) 125 LB

97668 500 lb 30” x 30” x 2.26” (3.02“ with leveling feet) 125 LB

97669* 1000 lb 30” x 30” x 2.70” (3.47“ with leveling feet) 20 LB

97670 500 lb 36” x 36” x 2.26” (3.02“ with leveling feet) 125 LB

97671* 1000 lb 36” x 36” x 2.70” (3.47“ with leveling feet) 20 LB

Table 1-1. Platform dimensions and capacity

PER IN

PER IN

PER IN

PER IN

PER IN

PER IN

PER FT

PER IN

PER FT

*Non-NTEP

Introduction 1

1. 1 S af et y

Important

WARNING

WARNING

Safety Symbol Definitions:

Indicates a potentially hazardous situation that, if not avoided could result in death or serious injury, and
includes hazards that are exposed when guards are removed.

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 you have read and understand the instructions and
warnings in this manual. 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. Proper care is your
responsibility.

Failure to heed may result in serious injury of death.
DO NOT allow minors (children) or inexperi
DO NOT operate without all shields and guards i
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 i
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 outl
Keep hands, feet and loose clothing

enced persons to operate this unit.

n place.

s worn beyond 5% of the original dimension.

away from moving parts.

et.

2 Benchmark Series Low-Profile Bench Scale