Rice Lake Weighing Systems SCT-1100, SCT-2200 Operating Manual

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SCT-1100 Advanced Series

Weight Transmitter

Technical Manual

Version 8.0

PN 185658 Rev BJuly 24, 2019

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.

Contents

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3.1 Panel Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Location Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Electrical Precautionary Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Maximum Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 Grounding the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4.1 Load Cells and Junction Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 Wiring Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.6 Connection to the Load Cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.6.1 Input/Output Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1 Basic Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.1 Turn on the Instrument. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.2 Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.3 Power Off the Instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.4 Zero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.1.5 Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Multi-Range Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.3 Display Configuration Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.4 Selecting the Channel to be Displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.5 Simultaneous Transmitter Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.6 Selecting Printing Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.7 Selecting the Operating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7.1 Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7.2 Alibi Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7.3 Sensitivity Times Ten . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.7.4 Peak Hold Weight Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.0 Setup Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1 Setup Mode Navigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.2 Quick Setup Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2.1 Default Factory Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.2 Quick Scale Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.3 Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.4 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.5 Output Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3 Setup Mode Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3.1 Type Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.2 F.Mode Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.3 Setup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.3.4 Diagnostic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.4 Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.4.1 Filter Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

SCT-1100 Weight Transmitter

Rice Lake continually offers web-based video training on a growing selection of product-related topics at no cost. Visit www.ricelake.com/webinars

4.5 Input/Output Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.5.1 Input Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.5.2 Output Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.6 Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.0 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.1 Calibration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.1.1 Calibration Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.3 Calibration Single Channel (Known Weight) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.4 Calibration Multi Channel (Known Weight) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.5 Calibration With Linearization Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.5.1 Dependent Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.5.2 Independent Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.6 Theoretical Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.6.1 Independent Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.6.2 Dependent Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.7 Gravity Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

5.8 Zero Dead Load A/D Counts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.0 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.1 Serial Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.1.1 COM1 Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.1.2 COM2 Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

6.2 Serial Port Transmission Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.2.1 PC Port Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.2.2 PRN PORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.2.3 PC PORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6.3 Serial Commands Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6.4 Transmission Protocols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.4.1 Standard String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.4.2 Extended String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.4.3 Multi-Scale String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

6.4.4 Secondary Mode Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

6.5 Connection to a Remote Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

7.0 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

8.0 Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

9.0 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

ii Visit our website www.RiceLake.com

Introduction

DANGER

WARNING

CAUTION

IMPORTANT

WARNING

1.0 Introduction

The purpose of this manual is to help the user understand the SCT-1100 functioning modes, key functions, and display indications. This manual applies to indicators using version 8.00 or higher of the STC-1100 firmware. Configuration and calibration of the indicator can be accomplished by pressing the indicator front panel keys, the serial command set or RLTools utility. The SCT-1100 is designed to work with up to 4 load cells in either a dependent or independent channel mode.

Manuals and additional resources are available from the Rice Lake Weighing Systems website at 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.

www.ricelake.com

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.

Electric shock hazard!

There are no user serviceable parts. Refer to qualified service personnel for service.

The unit has no power switch, to completely remove DC power from the unit, disconnect the DC power cable from the main socket.

For pluggable equipment the socket outlet must be installed near the equipment and must be easily accessible.

Always disconnect from main power before performing any work on the device.

Do not allow minors (children) or inexperienced persons to operate this unit.

Do not operate without all shields and guards in place.

Do not use for purposes other then weighing applications.

Do not place fingers into slots or possible pinch points.

Do not use this product if any of the components are cracked.

Do not make alterations or modifications to the unit.

Do not remove or obscure warning labels.

Do not use near water.

SCT-1100 Weight Transmitter

IMPORTANT

General Safety (Continued)

Failure to follow could result in damage to equipment or corruption to and loss of data.

Keep away from heat sources and direct sunlight.

Protect the instrument from environmental factors: rain, snow, dust, etc.

Do not wash, dip in water or spill liquid on the instrument.

Do not use solvents to clean the instrument.

Do not install in areas subject to explosion hazard.

Always mount the instrument and platform in a vibration free setting.

All instrument connections must be made with respect to local zone and environment standards.

1.2 Options

Features Include:

• 5-key, dual function, tactile feel keypad

• 6-digit LED display, 0.50" (13mm) high

• (6) red LED Annunciators

• NEMA type 1 plastic enclosure

• 12 - 24 VDC power

• Mountable to a DIN 35mm rail

• (1) 6-wire load cell connection with Remote Sense

• (3) 4-wire load cell connections

• Two configurable digital inputs and two configurable digital outputs

• Analog Output

• 0-20 mA, 4-20 mA (Maximum 350,000 ohm)

• 0-5 VDC, 0-10 VDC (Minimum 10,000 ohm)

• (1) RS-485 bidirectional port configurable for connection to a PC/PLC

• (1) RS-232 bidirectional port for connection to a printer or PC

• Unit of measure conversion

• Switching of net/gross weight setpoint on the gross weight/net weight/pieces,

• Alibi memory

• Peak detector

• Weight or Theoretical calibration with up to 3 linearity points

• Diagnostic information via serial port, message display, printing, simulation of key pressure

• Reading of the net, gross and tare weights. Clearing and entering tare, scale switch, setting of output values

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1.3 Overview

2.9

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Note

The indicator has a plastic case with external dimensions as shown in Figure 1-1.

Introduction

Figure 1-1. SCT-1100 Dimensions and Components

No. Description

1 (+) 12-24 Vdc power supply input 2 GND power supply input 3 Digital I/O 4 Analog output 5 Connection for serial line RS-485 6 Connection for serial line RS-232 7 Connections for load cell

Table 1-1. SCT-1100 Components

For detailed call out of pin designations, See Section 2.5 on page 7

SCT-1100 Weight Transmitter

765432

10 11 1298

1.3.1 Panel Display

The front panel of the SCT-1100 consists of a display with six digits that are 0.5 in (13 mm) high, six LED annunciators and a five-key keyboard.

Figure 1-2. SCT-1100 Front Panel

Item No. Symbol Description

1 lb Units – lb is printed on the instrument; kg, Ton, g, stickers are included for changing the units on the overlay 2 >0< Illuminates when the weighing system is within ±1/4 division of zero 3 ~ (tilde) Illuminates when the weight is unstable 4 NET Illuminates when a tare is established, measuring net weight 5 F Illuminates:

• when the specification function of the instrument is active (set in F.Mo d EF Un Ct parameter) See Section 3.7 on page 14

• when a key is pressed

Turns off:

• when the specification function of the instrument is disabled

• with an active function (a key is released)

Blinking means the instrument function is active for five seconds 6 W1 Indicates the activation of the first output (Sp1) 7 W2 Indicates the activation of the second output (Sp2) 8 ZERO – Clears the displayed gross weight of up to ± 2% of the total capacity; Cancels tare

At power up: Momentary press during startup displays current settings. See Section 3.1.1 on page 10

In setup: scroll through parameters

In numeric input: decreases the digit to be modified 9 TARE – Momentary press executes semiautomatic tare; Cancels tare

At power up: Momentary press during startup displays setup mode. See Section 4.1 on page 17

Long press allows for entering a manual tare from the keyboard

In setup: scroll through the parameters

In numeric input: increases the digit to be modified

10 MODE – Executes a specific function (set in the setup mode) See Section 3.7 on page 14

Long press allows for toggling the displayed channel (if configured in independent channels mode (Ind . C h )

At power up: Momentary press during startup displays quick setup menu. See Section 4.2 on page 18

In setup: enter into a parameter or to confirm a setting

In numeric input: confirms the entry made

11 PRINT – Executes a specific function (set in the setup mode) See Section 4.4.1 on page 26.

Executes a printout or transmission of data from the serial port dedicated to the printer

In setup: enter into a parameter or to confirm a setting

In numeric input: confirms the entry made

12 ON/OFF – Turns the instrument on and off

In setup: press multiple times to display SA v E? and/or press to exit a step without confirming the setting

In numeric input: momentary press clears the present value

Long press beyond -o ff -: Displays information of the scale (capacity, division, minimum weight for each configured range, gravi-

tational acceleration value, number of configured channels)

Table 1-2. SCT-1100 Front Panel

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Installation

IMPORTANT

2.0 Installation

Rice Lake Weighing Systems recommends the instrument and the platform (transducer) be installed on a flat level surface, that is stable and vibration free.

2.1 Location Selection

The following should be considered when selecting a location for the equipment:

• Dust-free

• Free of strong breezes or vapors

• Moderate temperature and humidity (59 to 86°F and 40-70%)

• Use waterproof conduit and couplings in order to protect the load cell cables

• Use a waterproof junction box to connect the cells

• Avoid welding with load cells installed

2.2 Electrical Precautionary Measures

The following electrical precautionary measures must be considered when installing this equipment:

• Main power supply must be maintained within ± 10% of the rated voltage

• Electrical best practices must be observed by the installing technician

• Follow recommended minimal separation distances given for cable categories, See Section 2.3

• The extension leads of the load cells, or signal amplifiers connecting to the serial ports and analog output, must be within stated maximum lengths, See Section 2.3

• It is recommended that load cell cables are shielded and run in conduit at an acceptable distance from power transmission lines to avoid signal interference and signal noise

• All cable not in conduit or otherwise shielded should be of minimal length and terminated as close to conduit exit as possible to avoid extraneous signal noise

• If the instrument is situated inside an electric panel, the power supply cable must be shielded and as short as possible, separate from every coil supply cable, inverter, electromotive force, and others. In addition, provide dedicated power supply to the instrument

• Install RC filters on the contact coils, solenoid valves and all devices producing electric fields

• It is recommended to leave the instrument powered on at all times to avoid condensation forming on the inside of the instrument

2.3 Maximum Cable Length

Load Cell Cable

The maximum length of a standard load cell cable with sense wires is:

• 150’ at 30#AWG

• 300’ at 24#AWG

RS-232 Cable

The maximum length of the RS-232 cable is 50' with a maximum baud rate of 19200.

RS-485 Cable

The maximum RS-485 cable length is 4000', See

Analog Output Cable

The maximum length of the analog current output cable at 4-20mA is 300'. The maximum length of the analog voltage output cable at 0-10Vdc is 150'.

Section 6.3 on page 42

SCT-1100 Weight Transmitter

structure (silo)

structure

Load cell

U-bolt between plate under cell

and weighing structure (not

supplied)

04,6 –

16 mm²

earth cable

section (not

supplied)

08 – 50 mm²

earth cable

section (not

supplied)

SCT

IMPORTANT

2.4 Grounding the System

A centrally located, single point ground, such as the ground bar of the electric panel, must be created and/or identified for proper grounding and functioning of the system. The ground must be sized so that the total resistance of grounding is lower than 1Ω. Connect grounding points of all instrumentation, load cells, and weighing structure to this single point ground.

2.4.1 Load Cells and Junction Box

When the load cells are connected to the instrument through a junction box, the shielding of the load cell cables and the instrument must be connected to the junction box grounding.

When the load cells are directly connected to the instrument, the load cell cable shielding must be connected to the single point ground.

System cabling should be kept as short as possible to minimize noise potential. After exiting conduit or other shielding, a ferrite device should be used prior to conductor termination.

After platform and the load cell are properly grounded, connect the shield from the load cell cable to the instrument ground. See

Figure 1-1 on page 3.

Non weighing

Weighing

Grounding Strap

Junction

box

Figure 2-1. Grounding Example

Procedures not expressly described in this manual are considered improper use of the equipment.

Ensure the platform is level or the loading cells are shimmed evenly.

All connections must meet all local zone and environment standards.

Follow the recommended electrical precautionary measures described in Section 2.2 on page 5.

Make sure that the grounding is made correctly, See Section 2.4.

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2.5 Wiring Schematic

I/O BOOT

Load Cell 1

RS-232

RS-485

Analog Output

12/24 VDC

Load Cell 2, 3, 4

Load Cell 2

Load Cell 3

Load

Cell 4

SIG +

SIG – EXC + EXC –

SIG +

SIG – EXC + EXC –

SIG +

SIG –

EXC +

EXC –

SIG +

SIG –

EXC + EXC –

SEN + SEN –

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Note

Installation

Figure 2-2. SCT-1100 Wiring Schematic

The CELL1 terminal board of the indicator can be connected to a six-wire load receiver (wiring must be jumpered if connecting to 4-wire load cell. See Figure 2-3 on page 8); CELL2, CELL3 and CELL4 are only for four-wire connection. See Figure 2-2.

Number Label Description

VE 12-24 Vdc Power Supply

1 +Vdc +12-24 Vdc 2 GND 0Vdc (GND)

Inputs and Outputs

Optoisolated Inputs Positive Logic (12-24Vdc,5-20mA max)

3 COM Common

4 IN1 Input 1 5 IN 2 Input 2

Relays

6 RL1 Relay 1 7 RL2 Relay 2 8 COM Common Relay

The maximum resistance applicable on the output current is 350 Ω and the minimum resistance applicable on the output voltage is 10 kΩ.

Output

Number

Analog Output

Voltage

Current

Serial Port

RS-485

RS-232

Label Description

9 I+ +20mA

10 I- -0mA (GND)

11 V+ +10V 12 V- 0V (GND)

13 (A) 485 + Line 14 (B) 485 - Line

15 TX Transmission 16 RX Reception 17 GND Ground

Table 2-1. SCT-1100 Wiring Schematic

Number

Load Cell 1

Load Cell 2

Label Description

18 SIG+ Signal + 19 SIG- Signal 20 SEN+ Sense + 21 SEN- Sense 22 EXC+ Excitation + 23 EXC- Excitation -

24 SIG+ Signal + 25 SIG- Signal 26 EXC+ Excitation + 27 EXC- Excitation -

Number Label Description

Load Cell 3

28 SIG+ Signal + 29 SIG- Signal 30 EXC+ Excitation + 31 EXC- Excitation -

Load Cell 4

32 SIG+ Signal + 33 SIG- Signal 34 EXC+ Excitation + 35 EXC- Excitation -

SCT-1100 Weight Transmitter

IMPORTANT

Note

EXC- SIG+

181920212223

SEN+EXC+ SEN- SIG-

CELL 1

18192021222332333435

EXC- SIG+SEN+EXC+

CELL 4 CELL 1

EXC- EXC+ SEN- SIG-SIG+SIG-

2.6 Connection to the Load Cell

The load cell 1 terminal board of the SCT-1100 must be connected to the 6-wire load cell; if using a 4-wire load in the load cell 1 terminal board, cell excitation must jumper to sense, See Figure 2-3. Load cells 2, 3, and 4 must be connected to 4-wire load cells, See Figure 2-4.

Sense is always enabled and, when not using 6-wire load cell, the sense terminals must be jumpered to the same polarity excitation wires.

The sense compensates for drops in voltage along the cable that connects the instrument to the load cell. Voltage is lost when the instrument and the load cell are greater than 30ft apart. A cable is typically provided with a load cell. When exceeding the length of the provided load cell cable, six wires must be used to compensate for voltage drop. It is, however, recommended to never cut or shorten the load cell cable.

Figure 2-3. Jumpered 6-Wire Connect

4-WIRE CONNECTION 6-WIRE CONNECTION

Figure 2-4. 4- and 6-Wire Connections

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2.6.1 Input/Output Wiring

60 VDC 150mA max

OUTPUTS

48 VAC 150mA max

1234567 8

+24Vdc G ND C O M IN 1 IN 2 R L 1 R L 2 C O M

POWER IN RELAYS

Installation

Figure 2-5. Input/Output Wiring

• Output power: 48 Vac, 150mA max (or 60 Vdc, 150mA max)

• Input voltage: 12Vdc - 24 Vdc max

• Input current: 5 mA - 20 mA max

SCT-1100 Weight Transmitter

Note

3.0 Operation

3.1 Basic Operation

Power must be provided to the SCT-1100 through an external AC/DC charger that supplies a stabilized voltage of 12 VDC to 24 VDC while connected to an appropriately rated AC power supply. Connect the two power supply wires to the appropriate terminals on the side of the instrument, See Figure 1-1 on page 3.

3.1.1 Turn on the Instrument

Press until the instrument turns on, then release. The instrument executes a start up procedure and displays the installed software version.

An auto zero function zeros the instrument at startup if the weight detected on the scale is ± 10% of the capacity. If the weight is not within this tolerance the instrument displays ZE RO and, after 10 seconds, the current weight is displayed.

The auto zero function at start-up can be disabled in the setup mode.

SE tu P C o n F i G PAr AM A u to-0 in Table 4-6 on page 24.

See

To view the following settings momentarily press while the display self-check is running:

• XX .Y Y – X X is the software release and YY is the sub release

• XX .Y Y – X X indicates the type of instrument, YY indicates the software version

• XX .Y Y.ZZ – the installed software version

• XX X X X X – the name of the installed software

• XX X . XX X – capacity and division of channel 1

• h i r ES – displayed together with the gravitational acceleration value of the area of use

The instrument then executes a self-check.

3.1.2 Standby

Press until OFF displays. The LED at the left of the display remains on.

3.1.3 Power Off the Instrument

To completely power off the unit, remove the power supplied voltage.

3.1.4 Zero

Press to zero a gross weight within ± 2% of the total capacity (or as set). Weight value displays as 0 and the relative annunciators illuminate.

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Operation

Note

3.1.5 Tare

Semiautomatic Tare

Press to tare the weight value on the scale. tArE displays momentarily and then 0 (net weight). The relative annunciators illuminate.

Manual Tare

Press for a few seconds. -tM- displays and then 0 0 00 0 0 . Enter the desired tare value with the following keys:

selects the digit to be modified (moves left to right, selected digit blinks)

•

• decreases the blinking digit

• increases the blinking digit

•

momentary press clears the present value, long press returns to the weigh mode without saving changes

• confirms the entered tare value

The tare value is subtracted from the weight on the scale and the relative annunciators illuminate.

The entered tare will be rounded off to the nearest division.

Cancel a Tare

A tare value can be manually canceled in multiple ways:

• Unload the scale and press or

• Press without unloading the scale

• Enter a manual tare equal to zero

Locked or Unlocked Tare

When a tare value is entered manually, automatically or from storage the tare value displays with a negative sign when the scale is unloaded. This is known as a locked tare. An unlocked tare is automatically canceled each time the scale is unloaded.

To set the tare type:

1. Turn on the instrument and press while the firmware version displays. F .M o d e displays.

2. Press to enter the menu.

3. Press or until tArE displays. Press to select.

4. Press or to scroll through options.

• Lo C K – locked tare

• u n Lo CK – unlocked tare

• di SA b – disable tare

5. Press

6. Slowly press multiple times until SA V E? displays.

• Press to confirm and store to the instrument memory

• Press any other key to cancel and exit without saving

to confirm selection.

SCT-1100 Weight Transmitter

Note

3.2 Multi-Range Function

The multi-range function allows for subdividing the scale capacity in two, each up to 3000 divisions.

Example: with a 10 kg cell platform it is possible to approve the weighing system with: Single range: 6 kg capacity and 2 g division (3000 div.) Dual range: 6/3 kg capacity and 2/1 g division (3000 + 3000 div.)

Multi-range functioning is indicated by illumination of the relative LED identifying the operating range; when the weight on the scale enters into the second range, the division of the second range is enabled. The first range division is restored only when the weight on the scale goes below the gross zero of the scale.

The selection of the range number with multi-range functioning is made during the instrument’s calibration, See Section 5.0 on page 32.

3.3 Display Configuration Data

The INFO function makes it possible to view the configuration data, such as:.

• First range capacity, first range minimum weight, first range division

• Second range capacity, second range minimum weight, second range division (if set)

• Gravitational Acceleration Value

The minimum weight corresponds to 20 net weight divisions

The data of the second range appears only if a range is configured

To view the configuration data:

1. Press and hold until inF O displays.

2. Release . The capacity value of the first range displays. Press or to scroll forward or back through the following data.

• First range capacity Ch1. MA X

• First range minimum weight Ch1.Min

• First range division Ch 1.E

• Second range division Ch1. MA X

• Second range minimum weight Ch1. Mi n

• Second range division Ch1. E

• Gravitational Acceleration Value GrAVit

• Number of Configured Channels ConF .C h

3. Press to return to the weigh mode.

Pressing when information of the currently active channel is displayed allows for the data of the other configured channels to be viewed. This selects and pauses the information for each channel, otherwise the information automatically cycles through all channels.

For example, if channels 2 and 3 are configured, for the maximum capacity of the 1st range:

1st range capacity channel 1 (1 C h 1 .MAX ). Press . 1st range capacity channel 2 (Ch2 .MAX ). Press . 1st range capacity channel 3 (Ch3. MA X).

3.4 Selecting the Channel to be Displayed

When indicator has multiple scale channels configured in tra n s M type mode or i nd .Ch type mode, it is possible to select the channel to be displayed using the key. See Section 4.3.1 on page 21 for configuring type parameters and Section 4.4 on

page 24 for configuring the number of channels.

1. Press and hold . The currently selected channel displays first followed by ChAn momentarily. A menu of available chanels displays.

2. Select the channel to be displayed. Press to confirm.

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Operation

Note

3.5 Simultaneous Transmitter Mode

The tr a n sM mode makes it possible to have simultaneous transmission of the values on each single channel via the serial line. In addition, through the optional alibi memory board, the transmitted weight values can be stored in a computer for data processing and/or integration. The filed values can then be recalled from the PC serial line or directly on the instrument’s display. See Section 4.3.1 on page 21 for configuring type parameters and Section 4.4 on page 24 for configuring the number of channels.

In this mode the zero tracking and the scale keys , and are disabled. It is not possible to set functioning modes and the alibi mode is set automatically.

To set the transmitter mode:

1. Turn on the instrument and press while the firmware version displays. tY P E displays. Press to enter the menu.

2. Navigate to select t r An S M displays. Press to select.

3. Slowly press multiple times until SA V E? displays. Press

to confirm.

Operation

In the simultaneous transmitter mode it is possible to view the weighing information. See Section 3.7.2 on page 14 regarding Reviewing Stored Weigh Information.

• Press to switch channels, if the scale is configured as multichannel

• Only functions which can be enabled through serial commands can be performed; not all serial commands can be

performed; See Section 6.3 on page 42; it is not possible to carry out other operations in the simultaneous transmitter mode.

• The list of usable serial commands includes:

DINT, PCOK, STAT, KEYP, KEYR, KEYEE,KEYED

Pressing simulation of the scale keys through the KEYP and KEYR commands allows for management of the functions linked to the

key.

PID, ALRD, ALDL, VER, REXT, REXTA, READ, MVOL, RAZF, CGCHN, ECHO, DISP,

3.6 Selecting Printing Functions

Use the following procedure below to set printing functions (See Section 4.3.2 on page 21):

1. Turn on the instrument and press while the firmware version displays. F. Mo dE displays.

2. Press to enter the menu.

3. Press or until rE AC T displays. Press to enter the menu.

4. Press or to scroll through the options.

• ZE ro – rearms print at zero; only prints after rearming

• i n St – rearms print when weight becomes stable

• AL W A yS – prints when print key is pressed, regardless of condition

5. Press to confirm.

6. Slowly press multiple times until SA V E? displays.

• Press to confirm and store to the instrument memory

• Press any other key to cancel and exit without saving

SCT-1100 Weight Transmitter

3.7 Selecting the Operating Mode

In addition to the standard weighing mode, the instrument can be set to carry out four alternative operational functions. Each operating mode activates certain LEDs.

To set the operating mode:

1. Turn on the instrument and press while the firmware version displays. F. Mo dE displays. Press to enter the menu.

2. Navigate to Fun C t. Press to enter the menu.

3. Select operating mode:

• Co nver – convert displayed value to a calculated value, See Section 3.7.1

• Al i b i - Alibi memory, See Section 3.7.2

• Vi SS – sensitivity times ten, See Section 3.7.3 on page 15

• PE A k – peak hold detector, See Section 3.7.4 on page 16

4. Press to confirm selection.

5. Slowly press multiple times until SA V E? displays.

• Press to confirm and store to the instrument memory

• Press any other key to cancel and exit without saving

3.7.1 Conversion

This function toggles the displayed weight between the scale unit of measure and an alternative unit measure.

• Long press to set the conversion factor

• Short press to toggle between the unit of measures

• Press to save the conversion value

3.7.2 Alibi Memory

The alibi memory allows for transmitted weight values to be filed in the PC for data processing and/or integration. The filed values can then be recalled from the PC serial line or directly on the instrument’s display for a following check.

Storage of a weight value occurs following the reception of the serial command or by pressing . The instrument transmits the gross and tare weights and an ID on the serial port.

The ID has the format: <Rewriting number>-<Weigh number>

• The rewriting number is a five digit number from 00000-00255; it indicates the number of complete rewritings of the alibi

memory

• Weigh number is a six digit number from 000000-131072; it indicates the weigh number in the current rewriting of the

alibi memory. The weigh number is increased by 000001 with each weigh storage. Once the value reaches 131072, it restarts from 000000.

The storage of a weigh value occurs only if the gross weight is greater than or equal to zero, it is stable and valid (not in underload or overload). Depending on how F.M od E r EACt has been configured in the technical set up, the storage of a weight by pressing a key is possible only if the condition is met (weight exceeds zero, weight instability or always).

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+ 40 hidden pages

Rice Lake Weighing Systems SCT-1100, SCT-2200 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1.0 Introduction

1.1 Safety

1.2 Options

1.3 Overview

1.3.1 Panel Display

2.0 Installation

2.1 Location Selection

2.2 Electrical Precautionary Measures

2.3 Maximum Cable Length

2.4 Grounding the System

2.4.1 Load Cells and Junction Box

2.5 Wiring Schematic

2.6 Connection to the Load Cell

2.6.1 Input/Output Wiring

3.0 Operation

3.1 Basic Operation

3.1.1 Turn on the Instrument

3.1.2 Standby

3.1.3 Power Off the Instrument

3.1.4 Zero

3.1.5 Tare

3.2 Multi-Range Function

3.3 Display Configuration Data

3.4 Selecting the Channel to be Displayed

3.5 Simultaneous Transmitter Mode

3.6 Selecting Printing Functions

3.7 Selecting the Operating Mode

3.7.1 Conversion

3.7.2 Alibi Memory