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Metrologic Instruments GmbH 90 Coles Road Dornierstrasse 2 Blackwood, NJ 08012 82178 Puchheim b. Customer Service: 1-800-ID-METRO Munich, Germany Tel: 609-228-8100 Tel: 49-89-89018-0 Fax: 609-228-6673 Fax: 49-89-89019-200 info@metrologic.com metrologic@europe.metrologic.com ASIA South America Metrologic Asia (PTE) Ltd. Metrologic Instruments 31, Kaki Bukit Road 3 Rua Florida, 1.821-5°Andar-Brooklin #05-08 Techlink CEP 04571-090, Sao Paulo-SP, Brasil Singapore 417818 Outside Brazil: Tel: 65-842-7155 Tel: 55-11-5505-6568 Fax: 65-842-7166 Fax: 55-11-5505-1681 ant888@cyberway.com.sg info@sa.metrologic.com In Brazil: Tel: 55-11-5505-2396 Fax: 55-11-5507-2301 metrolog@br.metrologic.com Copyright ® © 1998 by Metrologic Instruments, Inc. All rights reserved. No part of this work may bereproduced, transmitted, or stored in any form or by any means without prior written consent, except by reviewer, who may quote brief passages in a review, or provided for in the Copyright Act of 1976. Products and brand names mentioned in this document are trademarks of their respective companies. ii Table of Contents Introduction and Identification.................................... Unpacking List................................................. 2 Connecting the MH941 Hand-Held Scanner to the Fixed Scanner and Host Device ................................................... 3 Connecting the MH941 Hand-Held Scanner to the Decoder/Controller .... 4 Parts of the MH941 Scanner ...................................... 5 Audible Indicators ............................................ 6-9 Visual Indicators ........................................... 10-13 Labels....................................................... 14 IR Sensor Activation ........................................... 15 Scan Field ................................................... 16 Depth of Field and Symbol Specification ........................ 17, 18 Maintenance.................................................. 19 Appendix A Specifications ...................................... 20, 21 Appendix B MH941 Scan Head Pin Assignments .................... 22, 23 Appendix C Warranty and Disclaimer ............................. 24, 25 Appendix D Notices ........................................... 26, 27 Appendix E Patents............................................... 28 Index .................................................... 29, 30 iii Introduction and Identification When using the MH941 scanner with a decoder not manufactured by Metrologic, scanner operation is dependent upon your decoder. Since there are many decoders available, refer to your decoder’s documentation concerning scanner requirements and operation. When using a Metrologic hand-held scanner with one of Metrologic’s fixed scanners, the scanner will operate as follows: ! The IR signal extends approximately eight (8) inches beyond the output window. ! When the unit is activated by the IR sensor, the red LED will remain on. This is a visual indication that the scanner is beginning a sequence of bar code recognition, decoding, and transmission. ! When an object is in the scan field, the laser will begin a sweep to determine if a bar code is present. If a bar code is not detected within approximately 2.5 seconds, the red LED will shut off indicating that the laser is no longer on. To reactivate the scanning sequence, remove the object and present another. ! When a bar code is recognized, the scanner will decode the bar code and then transmit the data to the host system. When this occurs, the green LED will flash and the scanner will beep when the decoding is complete. At this time, the laser will turn off if the object is removed from the field. However, if the object stays in the field the laser will remain on for up to 2.5 seconds trying to detect another bar code. This feature allows very fast consecutive scans of symbols in close proximity, such as a wall of boxes or cartons, or bar coded menus. If the same symbol stays in the field after a successful scan, the laser will stay on for approximately 3.5 seconds and then turns off. This prevents unintentional reads of the same bar code. To read the same symbol more than once, simply remove the object from the scan field for approximately 1 second and then the scanner can scan the same symbol on the next pass. Unpacking List The following will be found in the shipping carton: ! Installation and User’s Guide ! MH941 Hand-Held Laser Scanner If anything is missing or to order additional items, contact your dealer, distributor or call Metrologic’s Customer Service Department. Connecting the MH941 Hand-Held Scanner to the Fixed Scanner and Host Device In order for the MH941 scanner to maintain compliance with applicable standards, all circuits connected to the scanner (Example: power supply, host system, etc.) must meet the requirements for SELV (Safety Extra Low Voltage) according to EN60950. 1. Make sure the host system is turned off. 2. Connect the he...