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Manafacture: ACR Electronics File size: 424.1 kb File name: abe8a1ed-cea6-4f56-9d29-3df66d770ce0.pdf Language of manual:

If you have questions regarding the contents of the manual, please contact our Technical Service Department at ACR Electronics, Inc., Telephone +1 (954) 981-3333. Please be ready to provide the technician with the page number you wish to discuss. If you have a question that is not covered in the manual, please visit our website and access the Frequently Asked Questions (FAQs) section for further information or call our Technical Service Department. The website address is If in the future you lose this manual, you may access and print a replacement on the ACR website. Table of Contents SECTION 1 - HOW THE ARX-50 WORKS _________________________ 2 SECTION 2 - PREPARING TO INSTALL ___________________________ 3 SECTION 3 - INSTALLATION ___________________________________ 5 SECTION 4 - OPERATION _____________________________________ 6 SECTION 5 - MAINTENANCE __________________________________ 9 APPENDIX A - SPECIFICATIONS ________________________________ 9 APPENDIX B - ACCESSORIES __________________________________ 10 APPENDIX C - WARRANTY, USEFUL LIFE POLICY, NOTICES __________ 10 PLEASE READ ALL WARNINGS, CAUTIONS AND NOTES CAREFULLY SECTION 1 - HOW THE ARX-50 WORKS The ARX-50 alarm receiver is designed as a companion to the ACR radio beacon transmitter model number RBL-30 (Mini B™300). It is intended to be used in a crew overboard (COB) alerting application. When properly powered and fitted with an external antenna, the signals from the Mini B™300 transmitter can be received by the ARX-50 up to several miles. While the ARX-50 may receive signals from other radio beacons, it is optimized for service with the ACR Mini B™300 personal beacon. The ARX-50 is designed to accept ship’s power supply in the range of +10.5 to +28 V DC. SECTION 2 - PREPARING TO INSTALL Unpacking the ARX-50 Before proceeding with the installation of the ARX-50, please verify that the content of the box includes the following: Quantity Item 1 ARX-50 Alarm Receiver with attached I/O cable (1m) 1 ARX-50 mounting bracket 1 Monopole antenna 4 Stainless steel #8 X 1” Phillips screws 1 Warranty card 1 Registration card 1 ARX-50 Product Support Manual If you do not have all of the items, please call ACR Technical Support at +1(954) 981-3333. Controls and indicators On/Off switch I/O cable Mounting bracket Speaker location Mode switch Frequency selector switch Coaxial (BNC) connector Alarm indicator Signal strength meter Weather resistant polycarbonate housing Location selection Choose a dry, clean surface to install the ARX-50, giving consideration to the importance of the location. The user must be able to see the visual alarm and hear the audible alarm. CAUTION: When using the included antenna, the ARX-50 must be mounted vertically and the antenna must not be within 0.5 m of a metal panel or other metal objects. Ship’s power requirements The ARX-50 accepts ship’s power supply in the range of +10.5 to +28 V DC. A two-wire connection (ground negative) is required that is capable of supplying 120 mA average and up to 400 mA under an alarm condition at +10.5 to +28 V DC. SECTION 3 - INSTALLATION Mount the bracket After selecting the location, hold the ARX-50 bracket in position and use as a template to mark where the screws will be located. CAUTION: When mounting to a wall, avoid mounting to metal. Pre-drill holes of a smaller diameter than the screws, if appropriate for the material that the bracket will be attached to. Holding the bracket in place, screw the four supplied screws through the openings in the bracket to the mounting material, securing the screws tightly enough to allow for vibration, yet loose enough to avoid cracking the case. Snap the ARX-50 into its bracket vertically, antenna skyward. Double-check that the ARX-50 is seated and secure by manually testing it for stability. Install the monopole antenna Install the monopole antenna on the ARX-50 via the BNC connector. The open end of the antenna is attached to the connector by a clockwise motion. The antenna snaps into place, locking it. CAUTION: Proper installation of the monopole antenna is required to seal the ARX-50. If any antenna other than the included monopole antenna is used, the unit may not seal properly. Connect the power supply The ship’s power supply is the source of power for the ARX-50. A one- meter I/O cable is supplied with the product. It is recommended that a qualified marine electronics professional or qualified electrician connect the power. Wiring The 1m I/O cable wiring chart is as follows: Signal Wire Color Positive power (12 to 24V nominal) Red Ground Black Speaker- Brown Speaker+ Orange Relay- common Yellow Relay- normally open Green Installation options The ARX-50 is designed to be flexible, allowing for user preferences. For this reason, the system provides relay contacts for a variety of connections. The relay contacts output in the ARX-50 is a floating metallic switch that closes upon alarm receipt. It is capable of switching a c...

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