Rice Lake CW-90B Manuel utilisateur

CW-90B and CW-90XB

Light-Capacity Bench Scales

Technical Manual

PN 200153 Rev AMay 19, 2020

An ISO 9001 registered company

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

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 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.0 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.1 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

3.4 Load Cell Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.5 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

BenchMark CW-90B and CW-90XB

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

Introduction

1.0 Introduction

This manual provides reference information to install and wire the CW-90B and CW-90XB Light-Capacity Bench Scales.

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, feet and loose clothing away from moving parts.

DANGER

WARNING

CAUTION

IMPORTANT

WARNING

BenchMark CW-90B and CW-90XB

2 Visit our website www.RiceLake.com

2.0 Installation

This section provides an overview of the CW-90B and CW-90XB 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' or 34'' 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 connectors. 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.

IMPORTANT

Note

Color Code Function

Green + Excitation

Black - Excitation

Blue + Sense

Brown - Sense

Red + Signal

White - Signal

Table 2-1. CW-90B Load Cell Wiring - 6 Wire

Color Code Function

Green + Sense

Black - Excitation

Blue + Excitation

Red - Signal

White + Signal

Grey - Sense

Table 2-2. CW-90XB Load Cell Wiring - 6 Wire

Note

Installation

2.4 Grounding the Scale Base

The CW-90B and CW-90XB can build up 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.

A chassis ground screw is located on the bottom of the platform. Within the replacement parts tables in Section 2.6 on page 4

the 8-32 NCx3/16 screw is used to facilitate grounding. Use a ground wire of at least 18 gauge copper to connect this screw to

the same earth ground as the attached indicator.

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.

Note

BenchMark CW-90B and CW-90XB

4 Visit our website www.RiceLake.com

2.6 Replacement Parts

See the following information for replacement parts details:

CW-90B and CW-90XB Bench Scales

Figure 2-1. Parts Illustration

711

614

Installation

Item No. Part No. Description Qty.

1 107144 Top Cover, 10 x 10 1

2 107140 Spider Plate, 10 x 10 1

3 105555 Nut, 1/4-20NC 8

4 106462 Screw Cap, 1/4 -20NC, Hex Head 4

5 107756 Load Cell, SPT RL1040, 34'' Cable, 5 lb Scale CW-90B 1

107757 Load Cell, SPT RL1040, 34'' Cable, 10 lb Scale CW-90B

107758 Load Cell, SPT RL1040, 34'' Cable, 25 lb Scale CW-90B

32860 Load Cell, SPT RL1040, 10' Cable, 5 lb Scale CW-90B

32861 Load Cell, SPT RL1040, 10' Cable, 10 lb Scale CW-90B

32864 Load Cell, SPT RL1040, 10' Cable, 25 lb Scale CW-90B

6 105452 Base Plate, 10 x 10 1

7 45329 Screw, 8-32NC x 3/16 1

8 107476 Foot, 1/4 - 20NC 4

9 52383 Load Cell Shim .25 x 1 x 1.34 SST 1

10 15148 Washer, Lock 1/4 Regular 4

11 14963 Screw, Cap 1/4-20NC x 3/4 Hex Head SST 2

12 15410 Level, Spirit Bubble Plastic 1

13 21948 Screw, Cap 1/4-20NC x 5/9 Hex Head SST 2

14 35082 Shim, Load Cell .125 x 1 x 1.34 SST 1

15 163794 Cap, Screw 1/4-28NF x 1/2, Flat Head SST 1

Table 2-3. CW-90B 10' x 10' Parts List

Item No. Part No. Description Qty.

1 105457 Top Cover, 12 x 12 1

2 105450 Spider Plate, 12 x 12 1

3 105555 Nut, 1/4-20NC 8

4 106462 Screw Cap, 1/4 -20NC, Hex Head 4

5 107758 Load Cell, SPT RL1040, 34'' Cable, 25 lb Scale CW-90B 1

107759 Load Cell, SPT RL1040, 34'' Cable, 50 lb Scale CW-90B

107760 Load Cell, SPT RL1040, 34'' Cable, 100 lb Scale CW-90B

32864 Load Cell, SPT RL1040, 10' Cable, 25 lb Scale CW-90B

32865 Load Cell, SPT RL1040, 10' Cable, 50 lb Scale CW-90B

32866 Load Cell, SPT RL1040, 10' Cable, 100 lb Scale CW-90B

6 105452 Base Plate, 12 x 12 1

7 45329 Screw, 8-32NC x 3/16 1

8 107476 Foot, 1/4 - 20NC 4

9 52383 Load Cell Shim .25 x 1 x 1.34 SST 1

10 15148 Washer, Lock 1/4 Regular 4

11 14963 Screw, Cap 1/4-20NC x 3/4 Hex Head SST 2

12 15410 Level, Spirit Bubble Plastic 1

13 21948 Screw, Cap 1/4-20NC x 5/9 Hex Head SST 2

14 35082 Shim, Load Cell .125 x 1 x 1.34 SST 1

15 163794 Cap, Screw 1/4-28NF x 1/2, Flat Head SST 1

Table 2-4. CW-90B 12' x 12' Parts List

BenchMark CW-90B and CW-90XB

6 Visit our website www.RiceLake.com

Item No. Part No. Description Qty.

1 107144 Top Cover, 10 x 10 1

2 107140 Spider Plate, 10 x 10 1

3 105555 Nut, 1/4-20NC 8

4 106462 Screw Cap, 1/4 -20NC, Hex Head 4

5 107174 Load Cell, SPT RLPWM15HE, 34'' Cable, 5 lb and 10 lb Scales CW-90XB 1

107175 Load Cell, SPT RLPWM15HE, 34'' Cable, 25 lb Scale CW-90XB

108685 Load Cell, SPT RLPWM15HE, 10' Cable, 5 lb and 10 lb Scales CW-90XB

108686 Load Cell, SPT RLPWM15HE, 10' Cable, 25 lb Scale CW-90XB

6 105452 Base Plate, 10 x 10 1

7 45329 Screw, 8-32NC x 3/16 1

8 107476 Foot, 1/4 - 20NC 4

9 52383 Load Cell Shim .25 x 1 x 1.34 SST 1

10 15148 Washer, Lock 1/4 Regular 4

11 14963 Screw, Cap 1/4-20NC x 3/4 Hex Head SST 2

12 15410 Level, Spirit Bubble Plastic 1

13 21948 Screw, Cap 1/4-20NC x 5/9 Hex Head SST 2

14 35082 Shim, Load Cell .125 x 1 x 1.34 SST 1

15 163794 Cap, Screw 1/4-28NF x 1/2, Flat Head SST 1

Table 2-5. CW-90XB 10' x 10' Parts List

Item No. Part No. Description Qty.

1 105457 Top Cover, 12 x 12 1

2 105450 Spider Plate, 12 x 12 1

3 105555 Nut, 1/4-20NC 8

4 106462 Screw Cap, 1/4 -20NC, Hex Head 4

5 107175 Load Cell, SPT RLPWM15HE, 34'' Cable, 25 lb Scale CW-90XB 1

107176 Load Cell, SPT RLPWM15HE, 34'' Cable, 50 lb Scale CW-90XB

107177 Load Cell, SPT RLPWM15HE, 34'' Cable, 100 lb Scale CW-90XB

108686 Load Cell, SPT RLPWM15HE, 10' Cable, 25 lb Scale CW-90XB

108687 Load Cell, SPT RLPWM15HE, 10' Cable, 50 lb Scale CW-90XB

108688 Load Cell, SPT RLPWM15HE, 10' Cable, 100 lb Scale CW-90XB

6 105452 Base Plate, 12 x 12 1

7 45329 Screw, 8-32NC x 3/16 1

8 107476 Foot, 1/4 - 20NC 4

9 52383 Load Cell Shim .25 x 1 x 1.34 SST 1

10 15148 Washer, Lock 1/4 Regular 4

11 14963 Screw, Cap 1/4-20NC x 3/4 Hex Head SST 2

12 15410 Level, Spirit Bubble Plastic 1

13 21948 Screw, Cap 1/4-20NC x 5/9 Hex Head SST 2

14 35082 Shim, Load Cell .125 x 1 x 1.34 SST 1

15 163794 Cap, Screw 1/4-28NF x 1/2, Flat Head SST 1

Table 2-6. CW-90XB 12' x 12' Parts List

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