Metrologic MS770 Manual de usuario

METROLOGIC INSTRUMENTS, INC.

TECH 7™ Laser Bar Code

Projection Scanner

Installation and User’s Guide

MLPN 2159

Printed in USA

June 1998

iii

Table of Contents

Introduction .................................................. 1

Unpacking List ................................................ 1

Scanner Installation ............................................. 2

Configuration to the Host System .................................. 3

Stand Installation ............................................... 4

Back Plate Installation .......................................... 5

Parts of the Scanner ............................................. 6

Visual Indicators ............................................ 7-10

Labels ....................................................... 11

Depth of Scan Field for the MS770 Scanner ........................ 12

Depth of Scan Field for the MS775 Scanner ........................ 13

Applications and Protocols ...................................... 14

Maintenance .................................................. 14

Appendix A

Specifications ...................................... 15, 16

Appendix B

Pin Assignments .................................... 17, 18

Appendix C

Warranty and Disclaimer ............................. 19, 20

Appendix D

Notices ........................................... 21, 22

Appendix E

Patents ............................................... 23

Index .................................................... 24, 25

Introduction

Metrologic’s TECH 7 laser bar code projection scanner is encased in an

NEMA-12 steel case. The case construction enables the scanner to operate in

harsh surroundings, especially industrial environments. Water-resistant,

shock-resistant, and rugged, the TECH 7 is also fast, aggressive and reliable. It

can register bar codes at a range of 76mm - 254mm (3" - 10") and can

autodiscriminate among all common codes.

To suit particular applications, two different scan patterns are available: an

omnidirectional pattern of 20 interlocking lines (Model MS770); or a 12-line

raster pattern (Model MS775). The scanner has a VLD design, a scan speed of

up to 2000 lines per second, and uses less than 8 watts of power.

Other features include an Application Specific Integrated Circuit (ASIC) and

MECCA (Metrologic Enhanced Code Correcting Algorithm). An Application

Specific Integrated Circuit (ASIC) is in the decoding system and virtually

eliminates misreads. MECCA (Metrologic Enhanced Code Correcting

Algorithm) enables the TECH 7 scanner to read poorly printed, wrinkled or

even torn bar codes on the first pass.

Unpacking List

The shipping carton, should contain the following:

!Installation and User’s Guide (MLPN: 2159)

!ScanSelect Scanner Programming Guide (MLPN: 2186)

!TECH 7 Model MS770 with omnidirectional scan pattern or

TECH 7 Model MS775 with raster scan pattern

!Communication Cable with Power Supply (optional) or

Communication Cable (optional)

!Back Plate (optional) or Stand (optional)

If any item is missing or to order additional items, contact the dealer, dis-

tributor or call Metrologic’s Customer Service Department at 1-800-ID-

METRO or 1-800-436-3876.

Scanner Installation

To maintain compliance with applicable standards, all circuits connected to the

scanner must meet the requirements for SELV (Safety Extra Low Voltage)

according to EN 60950. To avoid potential problems, do not power up the

scanner until the communication cable is secured to the host.

1. "Power off" the host system.

2. Locate the 19-pin female end of the scanner link cable and find the

widest key located above pins L and A. Align this key with the

corresponding key on the scanner box’s Mil spec connector. While

pushing in on the connector, rotate the ring clockwise until it locks into

place with a click.

3. Connect the other end of the communication cable to the host device. (If

the scanner is powered by the host, skip to Step 5.)

4. Check the AC input requirements of the transformer/power supply to

make sure the voltage matches an available AC outlet. Plug the

transformer into the AC outlet to supply power to the scanner. (A

socket-outlet shall be installed near the equipment and shall be easily

accessible.)

5. "Power up" the host system.

Note: When the scanner first receives power, the LEDs will flash and

then the scanner will beep once. After the scanner performs this

startup sequence, the green LED will remain on for a specified

time indicating that the laser is on.

Configuration to the Host System

The scanner is shipped from the factory programmed to a set of default

conditions noted in the ScanSelect Scanner Programming Guide by an asterisk

that appears before the brief definition located next to the bar code.

In order for the scanner to communicate with a host system properly, it may

need to be programmed. Since each host system is unique, configure the

scanner to match the host system requirements. Configure the scanner by

entering the program mode and scanning the appropriate bar codes that appear

in the ScanSelect Scanner Programming Guide. (To use ScanSet™, refer to

the ScanSet documentation for information on how to configure a scanner.)

1. Connect the scanner to the host system (Refer to the Scanner

Connections to the Host section in this guide).

2. Enter program mode by scanning the ENTER/EXIT program mode bar

code. (The unit will beep three times)

3. Scan the appropriate bar code(s) that appear in the ScanSelect Scanner

Programming Guide. (Reveal only one bar code to the scanner each

time. With your hand, cover the bar code not to be scanned.)

4. Exit program mode by scanning the ENTER/EXIT program mode bar

code again. (The new options will be saved and the scanner is ready for

normal operation.)

Base of Stand

Figure 1

Figure 2

Figure 3

Stand Installation

With the Metrologic stand (Part

#45475), the scanner can be

positioned in one of two directions.

The two orientation choices are

vertical or horizontal. (Refer to

Figure 1)

To install this stand, use the four 6-

32 x ½ inch machine screws and two

#10 panhead wood screws.

1. Drill two holes into the work

surface that are the same size

and distance as the holes on

the stand base. (Refer to Figure

2. Use the two #10 panhead

wood screws to attach the

stand to the work surface.

3. To fasten the scanner:

!For a horizontal mount,

align the four holes on the

back of the scanner with

the four clearance holes

located on the stand

marked with an X in

Figure 3.

!For a vertical mount, align

the four holes on the back

of the scanner with the

four clearance holes

located on the stand

marked with a Y in Figure

4. Fasten the scanner to the stand by inserting the four 6-32 x ½ inch

screws into the four holes in the scanner’s case.

Figure 4

Figure 5

Back Plate Installation

With the Metrologic back plate

(Part #45473), position the scanner

in one of two directions. The two

orientation choices are vertical or

horizontal. (Refer to Figure 4). To

use this stand, use the four 6-32 x ½

inch machine screws and four wood

screws to attach the unit to the back

plate and work surface. The maxi-

mum distance the screws should go

into the scanner is a ½ inch.

1. Drill four holes into the work surface that correspond with the holes

indicated by an XY in Figure 5.

2. To fasten the scanner to the back plate:

!For a horizontal mount, align the four holes on the back of the

scanner with the four clearance holes located on the back plate

marked with an X in Figure 5.

!For a vertical mount, align the four holes on the back of the

scanner with the four clearance holes located on the back plate

marked with a Y in Figure 5.

3. Fasten the scanner to the back plate by inserting the four 6-32 x ½ inch

screws into the four holes in the scanner’s case. Fasten the scanner and

back plate to the work surface.

Laser Output Window

Speaker

Mil spec Connector

Green and

Red LEDs

Figure 6

Parts of the Scanner

1Green and Red LEDs When the green LED is on, this

indicates that the unit is receiving

power and the laser is on. When the

red LED flashes on, the scanner has

read a bar code successfully. When the

red light turns off, communica-tion to

the host is complete.

2Speaker The speaker emits a beep when a bar

code has been decoded.

3Laser Output Window This aperture emits the laser light.

4Mil spec Connector The 19-pin male Mil spec connector

was designed to connect a communi

cation cable from the scanner to a host

device. The communication cable may

include a power supply or it may be de

signed to draw power directly from the

host device. The standard TECH 7 has

one connector. (When atrium option is

installed, a second connector is

installed on the unit to connect the

MX001 Industrial Control Interface

box.)

Visual Indicators

There is a red and green LED at the top of the scanner. When the scanner is

on, the flashing or stationary activity of the LEDs indicates the status of the

scan and scanner.

Steady Green

When the laser is on, the green LED is also on. This occurs when an object is

in the scan field.

Steady Green; Red Flash

When the scanner successfully reads a bar code, the red LED will flash then

beep once. If the red LED does not flash or the scanner does not beep once,

then the bar code has not been successfully read.

Steady Red and Green

After a successful scan, the scanner transmits the data to the host device. When

the host is not ready to accept the information, the scanner’s red LED will

remain on until the data can be transmitted.

Alternating Red and Green

This indicates the scanner is in program mode.

Steady Red

This indicates the scanner is in ScanSet mode.

No Red or Green LED

There are two reasons why the LEDs will not be illuminated. First, if the

scanner is receiving power and the LEDs are not on, then the scanner has

remained dormant for a specified time and the laser has turned off. To

reactivate the unit, touch the touch plate. Secondly, if the scanner is not

receiving power from the host or transformer, then the LEDs will not turn on.

Flashing Red

This indicates the scanner has experienced a laser subsystem failure. Return

the unit for repair at an authorized service center.

Signaux optiques

Sur la partie supérieure du scanner se trouvent une diode LED rouge et une diode LED

verte. Quand le scanner est sous tension, les diodes rouge et verte clignotantes ou

allumées vous informent sur l'état du scanner.

Ni la diode rouge, ni la diode verte n'est allumée

Il existe deux raisons possibles pour que les diodes ne s'allument pas. Premièrement: si

le scanner reçoit de l'énergie sans que les diodes ne s'allument, le scanner est resté sans

servir pendant une certaine période et le laser est désactivé. Pour le réactiver, passer un

objet devant le palpeur infrarouge. Deuxièmement: quand le scanner ne reçoit de

l'énergie ni de l'ordinateur central, ni du transformateur, les diodes restent éteintes.

La diode verte reste allumée

Quand le laser est en service, la diode verte s'allume également. C'est le cas quand un

objet se trouve devant le palpeur. La diode verte reste allumée tant que la temporisation

de l'infrarouge dure ou jusqu'à ce que le scanner soit désactivé.

La diode verte reste allumée; la diode rouge clignote

Après lecture avec succès d'un code à barres par le scanner, la diode rouge se met à

clignoter, suivie d'un bip sonore unique. Si la diode rouge ne clignote pas ou quand

aucun bip sonore n'est émis, cela signifie que le code à barres n'a pas pu être lu avec

succès.

Les diodes rouges et vertes restent allumées

Une fois la lecture effectuée avec succès, le scanner transmet les données à l'ordinateur

central. Si ce dernier n'est pas prêt à recevoir les données, la diode rouge du scanner

reste allumée jusqu'à ce que les données puissent être transmises.

Les diodes rouges et vertes clignotent en alternance

Indique que le scanner se trouve en mode de programmation.

La diode rouge reste allumée

Indique que le scanner se trouve en mode ScanSet.

Diode rouge clignotante

Indique une panne de laser pendant la lecture. Veuillez envoyer votre appareil chez

unconcessionnaire pour réparation.

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