Mettler Toledo BC05, BC15, BC30, BC60 Technical Manual

Counting Scale

Technical Manual

B14751600A

(5/98)

Mettler Toledo is recognized around the world for manufacturing and marketing high quality scales and

Worthington, Ohio, USA.

weighing systems. With roots tracing back to 1901, the company takes pride in its long established record of employing innovation, technology, and a close working relationship with its customers to meet the diverse needs of the global marketplace. Mettler Toledo's worldwide headquarters are in Greifensee, Switzerland. Corporate offices for the North American Marketing Organization are in

©Mettler-Toledo, Inc. 1998, 1997 No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose without the express written permission of Mettler-Toledo, Inc. U.S. Government Restricted Rights: This documentation is furnished with Restricted Rights.

Declaration of conformity

Konformitätserklärung

Déclaration de conformité

Declaración de Conformidad

Verklaring de overeenstemming

Dichiarazione di conformitá

We/Wir/Nous/WIJ/Noi: Mettler-Toledo, Inc.

1150 Dearborn Drive Worthington, Ohio 43085 USA

declare under our sole responsibility that the product,

erklären, in alleiniger Verantwortung, daß dieses Produkt, déclarons sous notre seule responsabilité que le produit, declaramos, bajo nuestra sola responsabilidad, que el producto, verklaren onder onze verantwoordelijkheid, dat het product, dichiariamo sotto nostra unica responsabilitá, che il prodotto,

Type: Mentor (Parts Counting Scale) Models: SCxx and BCxx (where xx defines the capacity of the scale from 5 to 60 kg)

to which this declaration relates is in conformity with the following standard(s) or other normative document(s).

auf das sich diese Erklärung bezieht, mitder/den folgenden Norm(en) oder Richtlinie(n) übereinstimmt. Auquel se réfère cette déclaration est conforme à la (aux) norme(s) ou au(x) document(s) normatif(s). Al que se refiere esta declaración es conforme a la(s) norma(s) u otro(s) documento(s) normativo(s). Waarnaar deze verklaring verwijst, aan de volende norm(en) of richtlijn(en) beantwoordt. A cui si riferisce questa dichiarazione è conforme alla/e sequente/i norma/e o documento/i normativo/i.

CE Conformity / CE-Konformität / Conformité CE

90/384/EU Nonautomatic Balances and Scales / Nichteselbsttätige Waagen / Balances à Functionnement non automatique EN45501:1992 Adopted European Standard / Norme Européenne Adoptée / Angenommene Europäische Norm 89/336/EU EMC Directive / EMU-Richtlinie / Directive concernant la CEM EN55022, A 01.04.87 Emissions / Funkstörungen EN50081-1 Immunity 73/23/EU Low Voltage / Niederspannung / basse tension EN61010 el. Safety / el. Sicherheit / sécurité el.

Other Directives and Standards / Andere Richtlinien und Normen / Autres documents corresponding to local requirements / entsprechend lokalen Anforderungen / correspondant aux exigences locales

UL 1950 el. Safety / el. Sicherheit / sécurité el. (if UL mark is applied) CSA C22.2 No. 950-M89 el. Safety / el. Sicherheit / sécurité el. (if cUL mark is applied) FCC Part 15, class A Emissions / Funkstörungen (if FCC mark is applied)

Darrell Flocken, Manager - Weights & Measures

Office of Weights and Measures Worthington, Ohio USA

January, 1995 September, 1996 (revised to include NAWI and LV Directives compliance.)

according to EN45014

INTRODUCTION

This publication is provided solely as a guide for individuals who have received Technical Training in servicing the METTLER TOLEDO product on software version 1.9.

Information regarding METTLER TOLEDO Technical Training may be obtained by writing, calling, or faxing to:

METTLER TOLEDO

1150 Dearborn Drive

Worthington, Ohio 43085-6712 ph: (614) 438-4400 fax: (614) 438-4444

WARNING!

This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, i.e., in accordance with the instructions manual, may cause harmful interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference which case the user at his own expense will be required to take whatever measures may be required to correct the interference.

SOFTWARE VERSION

This manual properly describes the operation and functionality of the METTLER TOLEDO BC counting scale containing software part number F144258, version 2.0. The software version and part number are displayed during the power-up sequence of the scale.

METTLER TOLEDO RESERVES THE RIGHT TO MAKE REFINEMENTS OR

CHANGES WITHOUT NOTICE.

PRECAUTIONS

READ this manual BEFORE operating or servicing this equipment.

FOLLOW these instructions carefully.

SAVE this manual for future reference.

DO NOT allow untrained personnel to operate, clean, inspect, maintain, service, or tamper with this equipment.

WARNING

ONLY PERMIT QUALIFIED PERSONNEL TO SERVICE THIS EQUIPMENT. EXERCISE CARE WHEN MAKING CHECKS, TESTS AND ADJUSTMENTS THAT MUST BE MADE WITH POWER ON. FAILING TO OBSERVE THESE PRECAUTIONS CAN RESULT IN BODILY HARM.

WARNING

FOR CONTINUED PROTECTION AGAINST SHOCK HAZARD CONNECT TO PROPERLY GROUNDED OUTLET ONLY.

DO NOT REMOVE THE GROUND PRONG.

WARNING

DISCONNECT ALL POWER TO THIS UNIT BEFORE REMOVING THE FUSE OR SERVICING.

ALWAYS DISCONNECT this equipment from the power source before cleaning or performing maintenance.

CALL METTLER TOLEDO for parts, information, and service.

CAUTION

BEFORE CONNECTING/DISCONNECTING ANY INTERNAL ELECTRONIC COMPONENTS OR INTERCONNECTING WIRING BETWEEN ELECTRONIC EQUIPMENT ALWAYS REMOVE POWER AND WAIT AT LEAST THIRTY (30) SECONDS BEFORE ANY CONNECTIONS OR DISCONNECTIONS ARE MADE. FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN DAMAGE TO OR DESTRUCTION OF THE EQUIPMENT OR BODILY HARM.

CAUTION

OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC SENSITIVE DEVICES.

CONTENTS

1 Introduction.............................................................................................................1-1

Model Identification............................................................................................................. 1-1

Specifications..................................................................................................................... 1-2

Power Requirements................................................................................................. 1-2

Standards Compliance......................................................................................................... 1-3

AC Power Line Voltage Variation ............................................................................................ 1-3

RFI Susceptibility ................................................................................................................. 1-3

UL Listing ........................................................................................................................... 1-3

CSA Certification .................................................................................................................. 1-3

Weights and Measures Approval............................................................................................ 1-4

Parts and Optional Equipment.............................................................................................. 1-4

2 Installation Procedures.............................................................................................2-1

Selecting the Proper Location............................................................................................... 2-1

Inspection and Contents Verification..................................................................................... 2-1

Setup - BC05/BC15............................................................................................................. 2-2

Setup - BC30/BC60............................................................................................................. 2-4

Power-up Sequence............................................................................................................ 2-6

3 Operating Information...............................................................................................3-1

Mode and Scale State Definitions ......................................................................................... 3-1

BC Display Area.................................................................................................................. 3-2

Display Symbols ................................................................................................................. 3-3

BC Keypad......................................................................................................................... 3-4

Function Keys ..................................................................................................................... 3-4

Reset to Factory Defaults..................................................................................................... 3-5

Motion Detection................................................................................................................. 3-5

Exiting Master Mode or Service Mode.................................................................................... 3-6

4 Configuring Service Mode Parameters .......................................................................4-1

Accessing Service Mode ...................................................................................................... 4-1

Navigating in Service Mode.................................................................................................. 4-2

Test Program...................................................................................................................... 4-3

Calibrate Program Block...................................................................................................... 4-3

Local Sub-block .................................................................................................................. 4-4

Weights and Measures Program Block.................................................................................. 4-5

Operator Access Sub-block.................................................................................................... 4-6

Country Sub-block ............................................................................................................... 4-6

End Program Block.............................................................................................................. 4-7

5 Configuring Master Mode Parameters........................................................................5-1

Accessing Master Mode....................................................................................................... 5-1

Navigating in Master Mode .................................................................................................. 5-1

User Program Block............................................................................................................. 5-3

1. Language Sub-block ........................................................................................................ 5-3

2. Beeper Sub-block ............................................................................................................ 5-4

3. Sleep Sub-block .............................................................................................................. 5-4

Scale Program Block............................................................................................................ 5-5

1. Units Sub-block................................................................................................................5-6

2. Zero Sub-block.................................................................................................................5-6

3. Motion Sub-block.............................................................................................................5-8

4. Filter Sub-block................................................................................................................5-8

Tare Program Block.............................................................................................................5-9

1. Tare Mode Sub-block........................................................................................................5-9

2. Tare Interlock Sub-block ....................................................................................................5-10

3. Chain Tare Sub-block .....................................................................................................5-10

4. Auto Clear Tare Sub-block ...............................................................................................5-10

5. Auto Tare Sub-block .......................................................................................................5-11

Sample Program Block....................................................................................................... 5-12

1. Pcs/Unit Sub-block.........................................................................................................5-13

2. Sample Mode Sub-block .................................................................................................5-13

3. Minimum Sample Sub-block............................................................................................5-14

4. Percent Accuracy Sub-block............................................................................................5-14

5. Average Piece Weight Enhancement Sub-block..................................................................5-15

6. Auto Clear APW Sub-block...............................................................................................5-15

Count Program Block.........................................................................................................5-16

1. Mode Sub-block.............................................................................................................5-16

2. Sign Sub-block ..............................................................................................................5-17

Data Program Block...........................................................................................................5-18

1. Data Program Sub-block...................................................................................................5-18

Interface Program Block ...................................................................................................... 5-20

1. Ports Sub-block .............................................................................................................5-21

End Program Block............................................................................................................5-24

6 Service and Maintenance .........................................................................................6-1

Cleaning and Regular Maintenance.......................................................................................6-1

Troubleshooting ..................................................................................................................6-1

Display and Error Messages ..................................................................................................6-2

Diagnostic Tests...................................................................................................................6-4

Replacing the BC05/BC15 Load Cell..................................................................................... 6-4

Removing the Load Cell ........................................................................................................6-4

Installing the Load Cell..........................................................................................................6-7

Reassembling the Unit ..........................................................................................................6-7

Replacing the BC30 and BC60 Load Cell .............................................................................. 6-8

Removing the Load Cell ........................................................................................................6-8

Installing the Load Cell..........................................................................................................6-9

Reassembling the Unit ........................................................................................................6-10

BC05/BC15 Wiring Diagram...............................................................................................6-11

BC30/BC60 Wiring Diagram...............................................................................................6-12

7 Parts and Accessories..............................................................................................7-1

BC05/BC15........................................................................................................................7-2

BC30/BC60 Counting Scale ..................................................................................................7-4

BC30/BC60 Counting Scale Chassis.....................................................................................7-6

BC30/BC60 Keyboard ......................................................................................................... 7-8

Optional Accessories ......................................................................................................... 7-10

Battery Kit BC05/BC15 .......................................................................................................7-10

Battery Kit BC30/BC60....................................................................................................... 7-11

Optional Accessories......................................................................................................... 7-12

8 Appendices .............................................................................................................8-1

Appendix 1: Data Interface.................................................................................................. 8-1

Serial Port Connections ........................................................................................................ 8-2

Data Format - Print Mode ..................................................................................................... 8-2

Single Line Output .................................................................................................... 8-2

Multiple Line Output.................................................................................................. 8-2

Multi Line Format Example: ....................................................................................... 8-3

Data Format - Host Mode...................................................................................................... 8-3

Data Format - Remote Weight and Remote Count Mode................................................................ 8-4

Appendix 2: Scale Build Determination.................................................................................. 8-6

Appendix 3: Master Mode Default Values.............................................................................. 8-8

1-1

1 Introduction

60 60 kg / 120 lb Specifications

Model Number Configuration

Introduction

The BC counting scale is an easy-to-use, high performance industrial counting scale that accurately and dependably counts parts of all shapes and sizes. Designed for use in normal industrial environments, it features an easy-to-learn counting system and simple keypad.

This technical manual provides information for installing, servicing, and troubleshooting the BC counting scale. Detailed operating instructions are provided in the BC Counting Scale User's Guide (A15031400A). Please read it thoroughly and familiarize yourself with all safety requirements. Service procedures must be performed by authorized personnel only.

Chapter 1: Introduction

Introduction

Model Identification

If you discover a problem with this documentation, please complete the Publication Evaluation Form found in the back. For additional information, please contact your authorized Mettler Toledo representative.

The BC scale is available in two sizes (small and large) and in four capacities, and is configured for the market in which it will be used at the time of ordering. Refer to the following chart to confirm the model number of the BC counting scale with which you are working. The example below shows a 15kg capacity scale with the battery option for the USA market.

Scale Type Capacity Battery Option Market

BC - Basic Counting 05 5kg / 10 lb Blank - None 000 to 999

15 15 kg / 37.5 lb B - Battery Market Code per 30 30 kg / 60 lb Mettler Toledo

B C 15 B 0 0 0

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METTLER TOLEDO BC Counting Scale Technical Manual

1-2

Specifications

The BC counting scale conforms to and operates best within the specifications that follow.

MODEL BC05

Capacity/Division (kg) Capacity/Division (lb) Scale Dimensions

(W x D x H) Platter Dimensions

(W x D) Actual Weight

Shipping Weight Operating

Temperature

Storage Temperature

Power Construction Two Liquid Crystal

Displays

BC15 BC30 BC60

5 x 0.0005 15 x 0.002 30 x 0.005 60 x 0.01 10 x 0.001 37.5 x 0.005 60 x 0.01 120 x 0.02

310 mm x 375 mm x 135 mm

12.2 in x 14.8 in x 5.3 in 305 mm x 215 mm

12.0 in x 8.5 in 5 kg/11 lb 11 kg/24 lb 8 kg/17 lb 14 kg/30 lb

°C to 40°C (50°F to 104°F)

10 to 90% humidity, non-condensing

-20

°C to 70°C (-4°F to 158°F)

10 to 90% humidity, non-condensing

24 VDC @ 250mA - 120, 220, or 240 VAC adapter included

Die cast aluminum base, high impact plastic cover

Left - Seven 18 mm/0.7 in high seven-segment digits

Right - Eight 13 mm/0.5 in high dot matrix characters

350 mm x 300 mm x 135 mm

13.8 in x 11.8 in x 5.3 in 350 mm x 300 mm

13.8 in x 11.8 in

(5/98)

Internal Resolution Display Resolution Weighing Units Serial Data I/O

1 million divisions at scale capacity

From 3,000d to 100,000d - selectable

Pounds, kilograms, and grams

Bi-directional RS2332C, 300 - 19,200 baud

Power Requirements

An external 24 VDC, 250 mA (21.0 to 30 VDC, 150mA nominal) power supply provides power to the BC scale.

The BC scale can also be powered by a rechargeable NiCad, 7.2 VDC,

4.3 amp-hour battery pack battery for portable applications. An internal option board converts the battery voltage to a nominal 24 VDC (for the load cell), and charges the battery when using the appropriate 1.0 amp heavy duty AC power supply. The battery supports a minimum of 6.5 hours continuous stand alone operation and is capable of at least 500 charge/discharge cycles.

1-3

Standards

Minimum

Maximum

Minimum

Maximum

Compliance

AC Power Line Voltage Variation

Chapter 1: Introduction

Standards Compliance

The BC meets NIST HB-44, Canadian Gazette Part 1, and OIML-SP7/SP2 line voltage variation specifications as listed in the following table:

AC Power Line Voltages

Line Voltage

Variation Specification

NIST HB-44 100 120 132 59.5 60 60.5

Canadian 108 120 132 58.8 60 61.2

OIML-SP7/SP2 102

RFI Susceptibility

AC Line Voltage

Nominal

120 187 204

The BC counting scale meets USA, Canadian, VDE 0871 Class A requirements for RFI susceptibility as listed in the following table with a maximum of one display increment of change when calibrated for recommended builds.

Radio Interference Frequency Field Strength

220

240

26-1000 MHz 3 volts/meter

132 242 264

Line Frequency in Hz (

Nominal

58.8

49.0

60 50 50

±± 2%)

61.2 51 51

UL Listing

CSA Certification

The BC counting scale is designed to meet UL specification E87297 (24 VDC 250 mA) for transformers.

The BC counting scale is designed to meet CSA standard LR57562.

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METTLER TOLEDO BC Counting Scale Technical Manual

1-4

Weights and Measures Approval

The BC counting scale meets or exceeds requirements for Class III, 10,000e NTEP division accuracy requirements in accordance with the National Institute of Standards and Technology (NIST) Handbook 44. A Certificate of Conformance 98-026 has been issued under the National Type Evaluation Program (NTEP) of the National Conference on Weights and Measure.

The BC counting scale was submitted for approval to the Canadian Weights and Measures Laboratories in Canada. After evaluation, the BC counting scale was found to meet and/or exceed requirements for Class III, 10,000d rating and approval AM-5223 was issued by statutory authority of the Minister of Industry, Science and Technology of Canada.

The BC counting scale was submitted for approval to the Nederlands Meetindtituut (NMi) in The Netherlands. After evaluation, the BC counting scale was found to meet and/or exceed the requirements for a Class III, 6000 division weighing instrument. EC type-approval certificate T2850 was issued by the NMi in accordance to Council Directive 90/384/EEC on Non-Automatic Weighing Instruments.

Parts and Optional Equipment

When ordering parts, refer to the parts list in Chapter 7 of this manual. The following optional equipment may be factory-installed or ordered as a separate kit for installation at a later time. Detailed instructions are included with each kit for installation by qualified personnel. Please contact your local METTLER TOLEDO representative.

NiCad Battery Option (0919-0045 and 0919-0049)

Two battery options - one for the smaller and one for the larger BC counting scale, allow the BC counting scale to operate when not connected to an AC power outlet. Both use a "pack" of NiCad batteries, which allows multiple recharging, and are attached to the bottom of the scale. The battery pack provides 7.2 volts of power to operate the BC counting scale (without a remote second scale) up to 6.5 hours without recharging. To recharge the pack, plug the BC counting scale into an AC power source for approximately 14 hours.

Extra NiCad Battery (0919-0046)

This kit consists of the NiCad battery only. It can be installed to operate the BC counting scale while the original battery is being recharged externally.

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Chapter 1: Introduction

1-5

Parts and Optional Equipment

Heavy Duty 1.0 Amp Power Supply (0919-0047)

The power supply is required when the battery option is used with the BC scale. It supplies additional power to recharge a battery via the scale. This power supply is designed for 120/240VAC with U.S. line cord.

External Battery Charger (0919-0051)

This 120VAC charging device recharges a NiCad battery pack external to the scale while a fresh battery pack is installed for longer operating time.

Heavy Duty 1.0 Amp Power Supply (0919-0052)

This power supply is required when the battery option is used with the BC scale. It supplies additional power to recharge a battery via the scale. This power supply is designed for 120/240VAC input with U.K. line.

Heavy Duty 1.0 Amp Power Supply (0919-0053)

Heavy Duty 1.0 Amp Power Supply (0919-0054)

Keyboard/Display Stand (0992-0001)

This metal stand supports the keyboard/display of the BC30 or BC60 to make it easier to view and use in certain situations. The stand may be used alone or with the attachment bracket below (0992-0002).

Stand Attachment Bracket (0992-0002)

The bracket attaches the keyboard/display stand (described above but not included) to the base of the BC30 and BC60 scale to make each an integral system that can be easily moved.

Sealing Kit (0992-0003)

The sealing kit contains all required hardware to prevent unauthorized access to the scale weighing parameters. This is only required when “sealing” the BC counting scale for approved applications. Hardware for both large and small models is included.

Software Upgrade Kit (0992-0004).

This kit contains new firmware for the BC to upgrade an older unit to the latest functionality. THIS KIT REQUIRES INSTALLATION BY A TRAINED SERVICE TECHNICIAN.

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METTLER TOLEDO BC Counting Scale Technical Manual

1-6

RS-232 Interface Cable (0900-0255)

This 20-foot (6 m) long cable provides bi-directional RS-232 interface between the BC counting scale and a serial device such as a printer that utilizes a 25 pin female serial connector.

RS-232 Interface Cable (0900-0278)

This 15-foot (5 m) long cable provides bi-directional RS-232 interface between the BC counting scale and a serial device such as a computer that utilizes a 9 pin male serial connector.

RS-232 Interface Cable (0900-0279)

This 15-foot (5 m) long cable provides bi-directional RS-232 interface between the BC counting scale and a serial device such as a computer that utilizes a 25 pin male serial connector.

Roller Ball Top Platter (0906-0161)

This platter contains 14 roller balls and is designed to allow the operator to easily move containers onto the base of the BC30 or BC60 scales.

(5/98)

2-1

2 Installation Procedures

Selecting the Proper Location

Before installing the BC counting scale, identify the best location for the equipment. The proper environment enhances the operation and longevity of the scale. Keep in mind the following sources of scale error:

• VibrationVibration diminishes the scale's ability to measure

accurately. Electrical machinery can cause inaccurate, non-repeatable readings. The scale may read inaccurately if not balanced properly.

• Air CurrentsMoving air can cause the scale to read an additional

force (additional weight) and have the same affect as vibration.

Chapter 2: Installation Procedures

Selecting the Proper Location

Inspection and Contents Verification

• Cold CircuitryScales at temperatures lower than room temperature

can read inaccurately as the scale measures the change in resistance of the strain gauges when weight is applied to the scale. Let the scale warm-up approximately 30 minutes before using it.

• Electrical InfluencesFluctuations in the electrical power supply can

affect performance and possibly damage the load cell. The scale should be set apart from equipment that generates electrical noise. "Clean" power should be used at all times to avoid damage.

• FrictionA scale cannot measure accurately if an object is rubbing or

pressing against the platter.

• Moisture/Humidity Refer to the temperature and humidity

specifications in Chapter 1 of this manual.

Inspect the package containing the BC counting scale before beginning installation. If the shipping container is damaged, check for internal damage and file a freight claim with the carrier if necessary.

Next, verify that all components are included. If any components are missing or damaged, please contact your authorized Mettler Toledo representative. Package contents for the BC05 or BC15 include:

• Scale

• Scale Platter

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METTLER TOLEDO BC Counting Scale Technical Manual

2-2

Figure 2-a: Shipping Screw

• User’s Guide

• Technical Manual

• Power Supply

• Packing Material

• Operator Card

• Allen Wrench (BC05 models only)

Package contents for the BC30 or BC60 include:

• BC Counting Scale Remote Keyboard/Display Unit

• Scale Base

• Scale Platter

• User’s Guide

• Technical Manual

• Power Supply

• Packing Material

• Operator Card

Setup - BC05/BC15

The BC counting scale is assembled at the factory according to ordering specifications. If you need to install components other than those installed at the factory, please refer to the instructions included with those options. To setup the BC counting scale:

1. If you have not already done so, remove the BC counting scale from

its container by grasping the bottom front and the back of the unit and pulling up out of the box. Remove the packing material from each side of the scale.

2. Set the unit on a sturdy, level surface and remove the platter

(P/N 140826 00A). Remove the shipping insert under the platter and the piece of paper.

3. Completely remove the shipping screw (BC05 only) using the allen

wrench provided. Store the screw with the allen wrench for later use.

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Chapter 2: Installation Procedures

2-3

Fifth Foot

Leveling Feet

Figure 2-c: Level Indicator

Inspection and Contents Verification

4. Level the scale by turning the adjustable feet on the bottom of the

unit. The bubble indicator is centered in the circle when the BC counting scale is level (see figures 2-b and 2-c). The feet must be adjusted so the scale does not rock.

Figure 2-b: BC Feet (Bottom View)

5. When the BC counting scale is level, carefully unscrew the front (fifth)

foot until it is resting evenly on the surface.

6. Unpack the power supply and plug it into the back of the scale. Plug

the line cord into a properly grounded AC power outlet. You can press ON/OFF to power the scale down until you are ready to test or use it.

24 VDC

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METTLER TOLEDO BC Counting Scale Technical Manual

2-4

Figure 2-d: BC30/BC60 Back Panel

Leveling Feet

Figure 2-e: Large BC Leveling Feet

should be down

Setup - BC30/BC60

1. If you have not already done so, remove the BC counting scale from

the box and set it on a sturdy, level surface.

WARNING!

AC power sources must have proper short circuit and over current protection in accordance with local and national electrical regulations. Failure to provide this may result in bodily injury and/or property damage.

CAUTION!

If the battery option has been installed, the larger 1.0 Amp DC power supply must be used. Do not use the standard 250mA DC power supply .

Note the orientation of the connector, clip

1. Insert the remote keyboard/display jack into the BC counting scale

base at the location marked “KYBD.”

24 VDC

Level the scale by turning the adjustable feet on the bottom of base.

KYBD

The bubble indicator will be centered in the circle when the BC counting scale is level (see figures 2-e and 2-f). The feet must be adjusted so the scale base does not rock.

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Chapter 2: Installation Procedures

2-5

Figure 2-f: Level Indicator

Inspection and Contents Verification

4. Insert the AC wall power supply into the 24 VDC jack on the BC

counting scale base. Plug the line cord into a properly grounded AC power outlet. You can press the ON/OFF key to power the scale down until you are ready to test or use it.

24 VDC

WARNING!

CAUTION!

If the battery option has been installed, the larger 1.0 Amp DC power supply P/N 14605500A or A14664800A must be used. Do not use the standard 250mA DC power supply P/N 14083200A, 14806900A or 14912100A if the battery is installed.

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METTLER TOLEDO BC Counting Scale Technical Manual

2-6

Power-up Sequence

The BC counting scale goes through a power-up sequence each time power is applied. The scale performs a diagnostic test on its ROM and RAM, then proceeds to normal operating mode. The power-up sequence is as follows:

The platter must be on the scale during power-up to capture zero. If the platter is not on the scale or if there is additional weight on the scale, an error may be displayed.

8888888

, , , , , ,

>0<

0<>

VEr 2.00

0<>

0.000

0<>

NET

PCS lb

METTLER

TOLEDO

Model BC

F144258

TARE ?

+ -

All segments lit.

Company name Mettler-Toledo is sequentially displayed.

Model name is shown.

The software version and part number is shown.

The power-up sequence is complete and the BC scale is ready for use.

(5/98)

3-1

3 Operating Information

The following sections provide information on the features of the BC counting scale that is needed to configure the system parameters in Service Mode and to set the operating parameters in Master Mode.

Mode and Scale State Definitions

This manual refers to various scale modes and operating states. They differ depending on the scale function and/or setup procedure desired.

• Master Mode—Master Mode is the mode in which operating parameters

(details pertaining to the scale functions such as selected weight units and audible beep configuration) are configured.

Chapter 3: Operating Information

Mode and Scale State Definitions

• Service Mode—Service Mode is the mode in which scale and system

parameters are configured, and in which the BC counting scale is calibrated.

• Weigh Mode—In Weigh Mode, the scale can display gross weight (non-zero)

or net weight (negative or positive). Negative net weight is displayed when a container is tared then removed from the scale.

• Count Mode—In Count Mode, the BC scale counts items on the platter.

• Dependent Mode—In Dependent Mode, counting and sampling actions are

guided by prompts. You can configure the sequence in Master Mode.

• Independent Mode—In Independent Mode, counting and sampling actions

are not guided by the BC counting scale. The specific counting sequence is determined by the user, providing greater application flexibility.

• Home State—In Independent Mode, Home State is indicated by the scale

displaying gross weight. In Dependent mode, home state is indicated by the scale displaying the first prompt in a defined sequence of prompts.

• Prior State—Prior State refers to the scale state immediately before the current

scale state (outside of Master Mode and Service Mode). The CLEAR key returns you to the Prior State regardless of current state. For example, if you just tared a container (0.0 net weight and/or tare weight displayed), you can return to the previous state (gross weight) by pressing CLEAR.

• Gross Weight—The full weight on the scale which includes tare weight (a

container or similar device) and net weight (weight of item or product only).

• Tare Weight—The weight of a container that is typically subtracted from the

gross weight so an accurate net weight is displayed.

• Net Weight—The remaining weight on the scale after a tare value is

subtracted from the gross weight.

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3-2

operator prompting) battery condition

pounds, and kilograms

accumulation

center of zero (>0<)

BC Display Area

The BC counting scale has two display areas where scale data and operational messages are presented. These are pictured below:

Legend icon for pieces,

Indicates recall

mode

Indicates a low

Cursor indicates

A full description of the BC scale’s program block structure is given in Chapter 4 (Service Mode) and Chapter 5 (Master Mode).

PCS

NET0> <

Seven-digit display

Figure 3-a Sample DisplayError! Switch argument not specified.

The left display is comprised of seven characters with seven segments, and is used primarily for numbers. In Master Mode and Service Mode, alphanumeric prompts are displayed here. Because the left display area is confined to seven segments per character, alphanumeric prompts may appear with upper and lower case characters, or a character or prompt may not be displayed as expected. For example, the letter “m” appears as an “n”, the letter “v” appears as “u”, the letter “e” appears as “E”. These occurrences are intentional. They do not indicate a display error or affect the operation of your BC counting scale.

The right display area is composed of eight dot matrix characters and is used primarily for alphanumeric prompts and responses.

Indicates the BC is in the net mode

Eight-character alpha-numeric display on the right side (for

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In Master Mode or Service Mode, the left display area tells you where you are within the program block structure. The right display area indicates the current parameter. Triangular cursors at the bottom of the left display area indicate graphically your position within Master Mode or Service Mode:

• One Cursor—indicates a program block

• Two Cursors—indicate a sub-block

• Three Cursors—indicate a parameter within a sub-block

For example, if the display reads [Master Tare], you are in Master Mode and about to access the Tare program block. The BC counting scale displays one arrow when you access the program block. If the display reads [Tare Mode],

3-3

Display Symbols

+ -

Chapter 3: Operating Information

BC Display Area

you are in the Tare program block and about to configure the Mode parameter. The BC counting scale displays two arrows indicating you have accessed the Tare sub-block.

The left and right display areas are also used to provide feedback when an error occurs. For example, if you press TARE when that keystroke is not valid, the BC counting scale will display an error in the left area and a descriptive message such as “Bad Entry” in the right. Most errors clear automatically in 2 seconds. Others will require pressing the CLEAR key.

The secondary display area contains special symbols to inform you of certain scale operational conditions. Descriptions of these symbols follow:

Battery—If the scale receives a low-battery signal, the unit beeps and flashes the battery annunciator. The annunciator flashes the warning for two minutes, then clears the display of all metrological data and displays [Power Failure].

If it receives a low-battery signal on power-up, the unit goes directly to Sleep mode and flashes the battery annunciator. You must apply AC power and wait until the symbol stops flashing. When the annunciator is no longer flashing, you can press the ON/OFF key and operate the scale a while longer. The BC counting scale remains in Sleep mode as long as the battery annunciator is flashing regardless of whether you press ON/OFF.

PCS

If the battery symbol continues to flash more than five minutes, the battery may be damaged and require replacement. Remove the battery pack and operate the BC counting scale from a standard AC outlet.

Scale Select—The scale select symbol is not functional on the BC scale.

Accumulator—The accumulator symbol flashes once when an addition or

subtraction accumulation has been successfully completed. In Master Mode, the asterisk (same symbol) indicates a factory default selection. This symbol will also light while in the recall mode.

Piece Count—The PCS legend indicates the BC scale is in count mode and the current display is piece count.

Weight Unit—The lb and kg legends indicate weight units. When you switch weight units, the BC scale automatically lights the appropriate legends. If the selected weight unit is grams, the letter "g" is displayed in the right alphanumeric display area.

Power-up—You will see a clock annunciator when the BC counting scale goes through its power-up sequence. This annunciator is currently not used.

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English International

Figure 3-a

BC Keypad

The English version of the BC scale comes with a standard 9-key keypad as shown below. The keypad consists of an ON/OFF key and 8 function keys.

Zero

Off

Some BC counting scale units may be equipped with an International (graphical) keypad. The following Function Key descriptions illustrate both.

Units

Recall

Accum+Clear

TARE

SAMPLE PRINT

Function Keys

Off

Units

Recall

Accum

The BC counting scale's function keys and their descriptions are given below. The operation the key performs may depend on how the scale is configured and what operating mode it is in.

ON/OFF—turns the BC scale on and off. Turning the unit off preserves battery life if the BC is operating on battery power. The BC scale displays [Sleep] when power is off. The scale goes through the power-up sequence each time power is reapplied.

UNITS—switches between the primary and alternate weight unit as selected in Master mode.

RECALL—recalls stored data. Depending on the Master mode configuration, this key toggles through a series of data related to the transaction. The RECALL key is used also to initiate a printout of Master mode and Service mode parameter configurations when it is held depressed for approximately four seconds then released.

ACCUM PLUS—adds weight and count values to accumulators.

Zero

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ZERO—zeros the scale. In Master mode and Service mode, the ZERO key is used to return to the previous program block. ZERO also clears the accumulators when they are displayed in the recall mode.

Chapter 3: Operating Information

3-5

when a no-motion condition exists.

Reset to Factory Defaults

TARE

SAMPLE

Clear

TARE—tares container weight in weigh or count mode. In Master Mode and Service Mode, the TARE key scrolls forward to the next selection.

SAMPLE—lets you enter fixed or variable sample quantities in count mode. In Master Mode and Service Mode, the SAMPLE key scrolls backward to the previous selection within the current program block. Also used to initiate an APW enhancement cycle if enabled.

PRINT—sends data to a printer or host (if attached to I/O port 1). When depressed for 7 seconds, PRINT allows access to Master Mode. In Master Mode and Service Mode, PRINT also accepts the displayed parameter and advances to the next step in the program block.

CLEAR—removes error messages from the display area (if the message is not self-clearing), clears single characters in data entry mode, and clears data values stored in the accumulators (when auto clear accumulators (when auto clear accumulators is turned on). Also exits the count mode and returns the scale to the home state.

Reset to Factory Defaults

As you are working in Master Mode, the factory default parameter selection is marked with an asterisk (

∗) accumulator symbol.

Motion Detection

If you attempt to perform a function command when the scale is in motion and tare interlock is enabled, the scale display becomes blank. The BC executes the function command only

To reset all Master Mode programming parameters to the original factory values:

• Enter Master Mode. Depress the PRINT key for 7 seconds until [******] is

shown.

• Press CLEAR. The [END? SAVE] prompt is displayed.

• Press TARE twice to display [END? DEFAULT], then press PRINT.

The BC scale remains in Master Mode. You can return to any program block.

The BC counting scale prohibits some scale functions if motion is detected on the scale. If you attempt to perform a function command (tare, clear, sample, or print) while the scale is in motion, the BC counting scale stores the command and executes it when a no-motion condition exists. With Tare Interlock OFF, the Pcs, lb, and kg symbols blank to indicate motion on the scale. When the platter is stable, these indicators are illuminated.

Exiting Master Mode or Service Mode

You can exit Master or Service Mode at any time and save or abort the parameters. To exit:

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1. Press CLEAR. The [End? SAVE] prompt is displayed.

2. If desired, press TARE to display [End?, ABORT].

3. Press PRINT to select the appropriate action.

If you select:

The BC displays the message “Updating” upon exit even if you selected Abort.

• Save—the configuration parameters are saved before you exit.

• Abort—the parameters are not saved and revert to their previous values.

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Chapter 4: Configuring Service Mode Parameters

4-1

- Small BC

Large BC

access button.

Accessing Service Mode

4 Configuring Service Mode Parameters

Service mode lets you set the parameters for scale and system setup and calibration.

WARNING!

PERMIT ONLY QUALIFIED PERSONNEL TO PROGRAM OR SERVICE THIS EQUIPMENT. EXERCISE CARE WHEN MAKING CHECKS, TESTS AND ADJUSTMENTS THAT MUST BE MADE WITH POWER ON. FAILING TO OBSERVE THESE PRECAUTIONS CAN RESULT IN BODILY INJURY.

Accessing Service Mode

To access Service mode:

Press the recessed service access button with a non-metallic object to enter Service Mode.

• Carefully remove the platter from the scale.

• Press the recessed service access button located slightly right of center (see

figure 4-a and 4-b) with a non-conducting probe. Do not use a metal tool as it may damage sensitive components. Hold down the access button until the display shows [********] on the lower right display, then release.

Remove the cover plate to access the service

Figure 4-a Service Mode Access

Figure 4-b Service Mode Access -

When Service mode is accessed, the BC counting scale displays [Service] in the left display followed by [TEST] in the right display.

3. Replace the platter.

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4-2

Program Block

Operator Access

English

International

Navigating in Service Mode

TARE—Advances you through a list of options (moves through to the right). Use

TARE

the TARE key to scroll through program blocks, sub-blocks, and options within sub-blocks.

PRINT—Accepts the displayed option (moves down through the various modes). Use PRINT to access program blocks and sub-blocks and to accept displayed options.

Zero

SAMPLE

ZERO—Returns you to the beginning of a program block.

SAMPLE—Returns you to the previous location. Use SAMPLE to back through

items in a list, sub-blocks, or program blocks.

The following diagram gives an overview of the Service Mode program blocks and sub-blocks:

BC Service Mode

TEST

Load Cell Local

CALIBRATE

WEIGHTS & MEASURES

END

Save / Abort

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Remote

Country

4-3

Test Program

Program Block

Chapter 4: Configuring Service Mode Parameters

Test Program

The Test program block is used to view higher resolution of the BC scale. The following diagram describes this program block:

From the [TEST] prompt, press PRINT to access the program block.

TEST

Load Cell Sub-block

Load cell Form 1

Form 2

Million

DLC ECHO

Eprom Setting

There are four test modes available in the load cell sub-block. They are: Form 1 (compensated load cell counts), Form 2 (uncompensated raw load cell counts and compensation value), Million (scale capacity divided into one million and compensated load cell counts), and DLC ECHO (used for manufacturing purposes only - DO NOT SELECT).

Step Description Press Key Left Right Comment

1. Access the load cell sub-block

ror! Switch

argument not

specified.

Test Load cell Sub-block

Display

tESt LOADCELL

LoAdCEL FORM 1 The first test mode is displayed at

the right.

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+ 76 hidden pages

Mettler Toledo BC05, BC15, BC30, BC60 Technical Manual

Specifications and Main Features

Frequently Asked Questions

User Manual