Metrologic MS770 Manuale utente
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
1
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.
2
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.
3
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
4
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)
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
3.
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.
5
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
1
2
34
6
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.)
7
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.
8
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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