NCR RealScan 7872 Installation & Owners Manual

Brand: NCR

Model: RealScan 7872

Type: Installation & Owners Manual

RealScan 7872

Installation/Owner Guide

497-0415291

Release F

August 30, 2004

Information Products

RSD-Atlanta

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08/04 497-0415291 Release F2 of 44

The product described in this book is a licensed product of NCR Corporation.

NCR is a registered trademark of NCR Corporation.

It is the policy of NCR Corporation (NCR) to improve products as new technology,

components, software, and firmware become available. NCR, therefore, reserves the

right to change specifications without prior notice.

All features, functions, and operations described herein may not be marketed by NCR in

all parts of the world. In some instances, photographs are of equipment prototypes.

Therefore, before using this document, consult with your NCR representative or NCR

office for information that is applicable and current.

To maintain the quality of our publications, we need your comments on the accuracy,

clarity, organization, and value of this book.

Address correspondence to:

Manager, Information Products

NCR Corporation

2651 Satellite Blvd.

Duluth, GA 30096

By NCR Corporation

Dayton, Ohio U.S.A.

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Preface

Audience

This book is written for hardware installer/service personnel, system integrators, and

field engineers.

References

•

NCR RealScan 7872 User Guide

(B005-0000-1179)

•

NCR RealScan 7872 Repair Guide

(B005-0000-1180)

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Table of Contents

Preface........................................................................................................................................... 3

Audience.................................................................................................................................. 3

References................................................................................................................................ 3

Table of Contents......................................................................................................................... 4

Revision Record........................................................................................................................... 5

Installing the RealScan 7872....................................................................................................... 6

Step 1 Verify Checkstand Preparation................................................................................ 7

Step 2 Connect the Cables .................................................................................................. 14

Step 3 Install RealScan 7872 in Checkstand ..................................................................... 17

Step 4 Calibrate the Scale.................................................................................................... 19

Step 5 Check the Scanner Operation................................................................................. 24

Operating the Scanner .............................................................................................................. 27

Operating the Scale ................................................................................................................... 28

Cleaning the RealScan 7872 ..................................................................................................... 29

Correcting Scanner Problems .................................................................................................. 30

Correcting Scale Problems .......................................................................................................31

Isolating Bizerba Scale Problems............................................................................................. 32

Setting the Communication Protocol...................................................................................... 33

Good Read Tone ........................................................................................................................ 34

Programming Worksheets ....................................................................................................... 35

10 Communications Protocol .............................................................................................. 35

11 Good Read Tone .............................................................................................................. 35

12 Timers................................................................................................................................ 36

13 Bar Codes - 1 .................................................................................................................... 36

14 Bar Codes ñ 2.................................................................................................................... 37

15 Bar Codes - 3 .................................................................................................................... 38

17 Bar Codes - 4 .................................................................................................................... 38

18 Bar Codes ñ 5.................................................................................................................... 39

16 Label Identifiers............................................................................................................... 39

20 RS-232 Parameters ñ 1..................................................................................................... 40

21 RS-232 Parameters ñ 2..................................................................................................... 40

22 RS-232 Prefix Byte ...........................................................................................................41

23 RS-232 Terminator Byte.................................................................................................. 41

24 RS-232 Communications Options.................................................................................. 41

30 Scale Parameters.............................................................................................................. 42

32 Miscellaneous Parameters .............................................................................................. 42

ASCII Code Chart................................................................................................................. 42

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Revision Record

Issue Date Remarks

A June 2000 First Issue

B Aug 2000 Update to diagrams and worksheets

C 05/08/01 Updated checkstand cutout dimensions

D 02/06/03 Added USB Connection and other miscellaneous information.

E 03/22/04 Updated to Super ASIC configuration

F 08/30/04 Added new model number

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Installing the RealScan 7872

Installing the RealScan 7872 consists of five main steps. Depending on the installation,

other information is sometimes needed. It is recommended that you follow the

installation steps in the following diagram.

18265

Preparation

Connect

Install

Calibrate

Verify

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Step 1 Verify Checkstand Preparation

Checkstand Cutout: RealScan 7872 ñ 12xx/22xx

17951

Shelf is recommended to catch RealScan 7872

if dropped during installation. It may also

include a drip pan for spilled liquids.

The RealScan 7872 must NOT be supported

by this shelf.

Scanner Unit Actual Dimensions

MODELABCDE

12xx 29.21 cm

11 1/2 in.

50.80 cm

20 in.

16.15 cm

6 3/8 in.

3.33 cm

1 5/16 in.

8.89 cm

3 1/2 in.

22xx 30.33 cm

11 15/16 in.

50.80 cm

20 in.

16.15 cm

6 3/8 in.

3.33 cm

1 5/16 in.

8.89 cm

3 1/2 in.

Cutout Dimensions

MODEL F G H I

12xx 29.51 cm

11 5/8 in.

50.95 cm

20 1/16 in.

3.49 cm

1 3/8 in.

0.95 cm

3/8 in.

22xx 30.48 cm

12 in.

50.95 cm

20 1/16 in.

3.49 cm

1 3/8 in.

1.27 cm

1/2 in.

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Checkstand Cutout: RealScan 7872 ñ 53xx/52xx

18151

2.5 cm (1.0 in.) side supports are

optional instead of shelf

Scanner Unit Actual Dimensions

MODELABCD

53xx 29.21 cm

11 1/2 in.

39.88 cm

15 11/16 in.

16.15 cm

6 3/8 in.

8.89 cm

3 1/2 in.

Cutout Dimensions

MODEL E F G

53xx 29.36 cm

11 9/16 in.

40.03 cm

15 3/4 in.

5.72 cm

2 1/4 in.

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Checkstand Cutout: RealScan 7872 ñ 03xx/05xx

17952

Note:

The RealScan 7872-03xx/05xx is

supported b

side supports or a shelf.

Do not support it b

the Rear Extender.

Standard Size

RealScan 7870-3000 & PSC 381 Size

2.5 cm (1.0 in.) side supports are

optional instead of shelf

Scanner Unit Actual Dimensions

MODELABCD

03xx/05xx 29.21 cm

11 1/2 in.

29.46 cm

11 9/16 in.

16.15 cm

6 3/8 in.

8.89 cm

3 1/2 in.

Fits 7870-3000 29.21 cm

11 1/2 in.

34.36 cm

13 1/2 in.

16.15 cm

6 3/8 in.

12.70 cm

5 in.

Fits PSC 381 29.21 cm

11 1/2 in.

35.25 cm

13 7/8 in.

16.15 cm

6 3/8 in.

10.16 cm

4 in.

Cutout Dimensions

MODEL E F G H I

03xx/05xx N/A

N/A

29.36 cm

11 9/16 in.

29.62 cm

11 5/8 in.

8.89 cm

3 1/2 in.

5.72 cm

2 1/4 in.

Fits 7870-3000 4.90 cm

1 15/16 in.

29.36 cm

11 9/16 in.

34.52 cm

13 5/8 in.

12.70 cm

5 in.

5.72 cm

2 1/4 in.

Fits PSC 381 5.79 cm

2 1/4 in.

29.36 cm

11 9/16 in.

35.41 cm

13 15/16 in.

10.16 cm

4 in.

5.72 cm

2 1/4 in.

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Drip Pan Installation

When the RealScan 7872 is used in a sit down environment, install a drip pan below the

scanner/scale to divert any spilled liquids or debris away from the operator.

Service Clearance

A = 8.0 in. (20.3 cm) minimum if checkstand structure is not removable for servicing.

1.0 in. (2.5 cm) minimum if checkstand structure is removable for servicing.

B = 14.0 in. (35.6 cm) minimum if checkstand structure is not removable for servicing.

7.0 in. (17.8 cm) minimum if checkstand structure is removable for servicing.

C = 3.8in. (9.5 cm) minimum clearance to closest checkstand panel.

Mounting surface for

keyboard must be

removable for servicing

18152

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Item Diverter

An installed item diverter must extend º inch beyond the scan window to allow items

to clear the tower assembly and move easily in front of the scan windows. The tower is

13.3 cm wide, however the item diverter may need to be wider depending on the model.

See the sections Checkstand Cutout for more dimensions.

13.3 cm (5 º in.)

Item Diverter

18085

Ventilation Requirements

The RealScan 7872 is designed to operate without an exhaust fan in the checkstand;

however, there must be adequate convection airflow. The ambient temperature inside

the checkstand cannot be higher than 40∞ C (104∞ F). Also, the ambient temperature

inside the checkstand cannot be higher than 7∞ C (12.6∞ F) above the ambient

temperature outside the checkstand. For example, if the ambient temperature outside

the checkstand is 24.4∞ C (76∞ F), the ambient temperature inside the checkstand cannot

be greater than 31.4∞ C (88.6∞ F). If the checkstand contains other heat producing

equipment, you may need to use forced air to keep the temperature within the specified

range. However, air coming into or leaving the checkstand MUST NOT enter or exit

past the RealScan 7872.

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Electrical Wiring to the Checkstand

Feeder wiring and insulated ground from

main service panel to distribution panel

to be run in metal conduit.

The electrical wiring must meet all

electrical codes, laws, and regulations.

Note:

Circuit Breakers

NCR circuits should be run in

separate metal Conduits.

Isolated/Insulated

Ground Bus

Isolated Ground Receptacles

Neutral and

Ground Bus

Neutral

Bus

Input

Voltage

Input Voltage L1, L2 Circuit Breakers

U.S., Canada, &

Japan

European

International

100Vac to 120Vac

220Vac

220Vac to 240Vac

100Vac to 120Vac

220Vac

220Vac to 240Vac

Standard single-pole; value

determined by type of device

branch and by electrical code.

European double-pole.

Circuit B: Terminal

Installation Type

NCR circuits must be dedicated to

NCR equipment or other logically

connected electronic equipment

(modems, DAA, bridges, etc.)

Note:

Circuit C: Scanner/Scale

Receptacle should be easily

accessible and near the

Scanner/Scale

Distribution Panel

Main Service

Panel

Conduit

Checkstand

Frame

Circuit A: Checkstand

Belt

Motor

Belt Control

Lighting

Misc. Equip.

R0121

The RealScan 7872 outlet in the checkstand must be connected to a circuit breaker

switch. This switch must be located close to the operator and is used as the On/Off

switch for the RealScan 7872.

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Hole Requirements for Cables

When you run the various cables through the checkstand, you might have to drill holes

in some of the panels. The holes must be large enough for the connector on one end of

the cable to pass through. You must also ensure that there are no sharp edges to cut the

cable. The following table gives the minimum hole size for each of the RealScan 7872

cables.

Cable Cable Length Minimum Hole Size

Power Cord ñ Outlet to

Power Supply

3.05 meters (10 feet) 3.18 centimeters (3/4 inch)

Power Cord ñ Power

Supply to RealScan 7872

1.22 meters (4 feet) 1.52 centimeters (1/2 inch)

Interface Cable 8.0 meters (26.24 feet) 1.90 centimeters (3/4 inch)

4.0 meters (12.12 feet) 1.90 centimeters (3/4 inch)

Remote Display Cable 8.0 meters (26.24 feet) 1.90 centimeters (3/4 inch)

4.0 meters (12.12 feet) 1.90 centimeters (3/4 inch)

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Step 2 Connect the Cables

Verify that the RealScan 7872 power receptacle switch is off. Plug the power cord

into the RealScan 7872 power receptacle. Pass the power cable from the power

supply through the checkstand opening.

Connect the communications interface cables to the host terminal. Refer to the

terminal documentation for instructions on connecting the interface cables.

Note: Some terminals may require a trained service technician to open the terminal

and connect the interface cables.

Pass the interface cable through the checkstand opening (See previous section

regarding Hole Requirements for Cables).

If you are installing an NCR 7825 Remote Display, pass the cable from the display,

through the checkstand, and through the checkstand opening where the RealScan

7872 is going.

If you are installing an RS-232 peripheral device, pass its interface cable through the

checkstand opening as needed.

Connect all cables to the RealScan 7872 according to the following illustration.

21476

EAS

INTERLOCK

REMOTE DISPLAY

5V 5A MAX

PORT 1

SCANNER

POWER

USB

Note: If you are using a USB cable to connect the RealScan 7872 to the host terminal,

connect the USB cable to the USB connector rather than the Scanner connector on

the back of the RealScan 7872.

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Dual Cable Installations

When the RealScan 7872 is installed in a dual-cable system, a Communication Adapter

box must be used. Use the following procedure to install this box.

Cut the included Velcro tape into two strips and attach it to the Communication

Adapter box.

The Communication Adapter box must be located close to the RealScan 7872. The

Display Data Cable (497-0404334) is 1 meter (39.4 inches) long. Attach the

Communication Adapter box in a suitable position where it remains dry if liquid is

spilled on the checkstand.

Connect the cables as shown.

21652

DISPLAY

DATA IN

SCALE

DISPLAY

DATA

OUT

Scanner/Scale Communications Adapter - Model K107

Communication Adapter Box

To Host Terminal

Scanner Cable

Scale Cable

EAS

INTERLOCK

REMOTE DISPLAY

5V 5A MAX

PORT 1

SCANNER

POWER

USB

EAS

INTERLOCK

REMOTE DISPLAY

5V 5A MAX

PORT 1

SCANNER

POWER USB

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RS-232 Peripheral Cables

The cable on some RS-232 hand-held peripheral devices is not long enough to connect to

the RealScan 7872 (under the checkstand) and still permit easy use of the device. In

these cases, NCR recommends that you install an extension cable. You can obtain one

from NCR (Corporate ID Number 1416-C313-0040) or you can make your own. If you

make your own, it should be approximately 39 inches (1 meter) long with 8-pin phone

type connectors on each end.

16046

Wire Number P1

Power Supply Location

Locate the Power Supply in a convenient place inside the checkstand. It must be close

enough for the Power Cable to reach the RealScan 7872. However, do not place the

Power Supply where spilled liquids can run down onto it.

It is recommended that a drip pan be installed below the RealScan 7872 to collect any

spilled liquids.

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Step 3 Install RealScan 7872 in Checkstand

Verify the top of the RealScan 7872 supports are set to the initial distance from the

top of the checkstand.

Grasp the front and back of the unit, as shown below, and slowly lower it into the

checkstand cutout. For proper operation, the RealScan 7872 must be level. It should

have support within five centimeters (two inches) of its corners so that it does not

rock.

17544

Note: On units that do not have a handle on the front to grasp, pick up the unit by

firmly grasping the tower with both hands by lowering the unit into the cutout, placing

it either on its side supports or on a shelf below.

Install the Top Plate on the four supports (rubber posts). The leading edge of the

Top Plate must be flush or up to 0.15 cm (0.06 in.) below the top of the checkstand.

The trailing edge of the Top Plate must be flush or up to 0.15 cm (0.06 in.) above the

top of the checkstand.

Verify the final alignment of the Top Plate with the top of the checkstand. An item

should easily slide from the checkstand, across the RealScan 7872 Top Plate, and

back onto the checkstand. The following illustration shows proper alignment.

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17545

Note: It is critical that the RealScan 7872 does not rock on its supports to ensure

scale accuracy. Make sure that all supports are securely fastened and that the

RealScan 7872 is sitting on all supports.

Communications Protocol

The communications protocol strapping was set to your store specifications before the

RealScan 7872 was shipped from the factory.

See the section Setting the Communications Protocol for further information.

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Step 4 Calibrate the Scale

Note: The Bizerba computing scale, used in a RealScan 7872-53xx, is calibrated at the

factory and cannot be calibrated in the field. However, you can reset the scale by

turning off the power, then turning it back on with no weight on the Top Plate. If you

are installing a RealScan 7872-53xx with a Bizerba scale do not attempt to calibrate the

scale, but continue to Step 5 ñ Check the Scanner Operation.

Note: You MUST calibrate the scale when you install a RealScan 7872. To be in

compliance with governmental weights and measures regulations, you must be certified

or registered with your government to calibrate and place a weighing instrument into

service.

Note: Calibration information is NOT sent to the host terminal. If your RealScan 7872

does not have voice enabled or does not have a remote display, you must use a Field

Service Calibration Display.

Caution: Be sure the Interface Cable between the RealScan 7872 and the host terminal is

disconnected during scale calibration. Some host terminals can cause interference that

can invalidate the scale calibration.

You can calibrate the scale after power has been supplied for 30 minutes if the ambient

temperature has been 20 C (68 F) for at least 24 hours. If this condition is not met, then

the scale must be on for at least 6 hours before you can calibrate it. Also, you must use a

certified weight set to calibrate and certify the scale.

The EEPROM on the scale board maintains an audit trail of scale calibration and

programming activity. The audit trail records the number of times the scale has been

calibrated. You can display the audit trail count on a Remote 7825 or Field Service

Calibration Display by pressing and holding the Scale Zero Button on the Operator

Display Panel. The display alternates between Cal xxx and Par xxx.

Exercise the Scale

You must exercise the scale before performing a calibration. Add and remove weight to

your scale in the order given in the following chart. This is a building procedure in

which you start with no weight (0) and sequentially add and remove weight to obtain

the values shown in the chart. Go through this procedure four times.

Weight Feature Total Weight on Top Plate

13.995 kg 0.0 kg 2.5 kg 5.0 kg 15.0 kg 5.0 kg 2.5 kg 0.0 kg

30.0 lb. 0.0 lb. 5.0 lb. 15.0 lb. 30.0 lb. 15.0 lb. 5.0 lb. 0.0 lb.

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Access the Calibration Switch

The Calibration Switch is located below the Top Plate.

1. Remove the Top Plate to gain access to the Calibration Switch Cover.

2. Remove the screw that secures the Calibration Switch Cover.

3. Also remove the seal if one is present.

4. Rotate the Calibration Switch Cover to gain access to the Calibration Switch.

17903

Calibrate the Scale

The scale firmware controls calibration. It waits for you to respond to the prompt before

going to the next step. When you have placed the weight on the Top Plate and pressed

the Scale Zero button, the firmware sounds a single tone and changes the prompt for the

next weight. You can end the procedure before you have completed the calibration

function by turning the unit off. However, if you do this, you must still calibrate the

scale before placing it into service

Note: The pound and kilogram weights used for calibration are not equivalent values.

They are the actual weights the firmware needs to perform the calibration.

1. Install the Top Plate.

2. Apply power to the RealScan 7872.

3. Press and hold the Scale Zero button to display the Cal and Par values. Record these

values.

4. Raise the front edge of the Top Plate just enough to access the Calibration Switch.

Press the Calibration Switch, then lower the front of the Top Plate into position. The

display should indicate no weight on the scale: Ready C 0.00 lb (0.000 kg).

5. Change the weight on the Top Plate in the sequence shown in the following chart

when directed to do so by the display or voice messages.

Display Add Weight Remove Weight

Ready C-2.5 kg (05 lb.) 2.50 kg (5.00 lb.)

Ready C-05 kg (15 lb.) 2.50 kg (10.00 lb.)

Ready C-10 kg (30 lb.) 5.00 kg (15.00 lb.)

Ready C-00 kg (00 lb.) 10.00 kg (30.00 lb.)

Ready 0.000 kg (0.00 lb.)

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NCR RealScan 7872 Installation & Owners Manual

NCR RealScan 7872 Installation & Owners Manual

NCR RealScan 7872 Installation & Owners Manual

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