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ACR Electronics ARX-50 Product Support Manual

121.5 mhz alarm receiver.
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  • Page 1 Y1-03-0229C...
  • Page 2 CAUTION: Before proceeding to install, test or use your new ACR Electronics’ product, please read this Product Support Manual in its entirety. 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.
  • Page 3: Table Of Contents

    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...
  • Page 4: Section 1 - How The Arx-50 Works

    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™ used in a crew overboard (COB) alerting application. When properly powered and fitted with an external antenna, the signals from the Mini B™...
  • Page 5 Controls and indicators Coaxial (BNC) connector Alarm indicator Signal strength meter Weather resistant polycarbonate housing Y1-03-0229C Mounting bracket Speaker location On/Off switch Mode switch Frequency selector switch I/O cable...
  • Page 6: Section 3 - Installation

    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.
  • Page 7: Section 4 - Operation

    SECTION 4 - OPERATION Operation overview The ARX-50 is a 121.5 MHz radio beacon receiver that is part of a ship’s crew overboard (COB) system. To properly protect officers, crew and passengers from COB, each individual will need to wear or carry on their person a locator beacon such as an ACR Mini B™...
  • Page 8 Choose Alarm mode or Monitor mode Alarm mode The Alarm mode for the ARX-50 is the system’s default mode. In this mode, the radio beacon signal detector circuitry is activated, i.e., The system is ready to detect 121.5 MHz signals.
  • Page 9 ARX-50. NOTE: The signal strength meter may display a low level of activity any time that the ARX-50 is on. This is not to be mistaken for detection of a 121.5 MHz beacon transmission.
  • Page 10: Section 5 - Maintenance

    Using a mild, sudsy solution such as dishwashing liquid, wipe the surface of the ARX-50 with a damp cloth to remove film, salt and sand 121.5 MHz or 121.65 MHz, user selectable <0.2 µV (at antenna output)
  • Page 11: Appendix B - Accessories

    1 (one) year* from date of purchase or receipt as a gift. During the warranty period ACR Electronics, Inc. will repair or, at its option, replace the unit at no cost to you for labor, materials and return transportation from ACR.
  • Page 12 Product Support Manual, please visit the ACR website at ©2008 by ACR Electronics, Inc., part of Cobham plc. All rights reserved. Reproduction in whole or in part is permitted only with permission of ACR Electronics, Inc. Ongoing product improvements may change product specifications without notice.
  • Page 13 EC DECLARATION OF CONFORMITY ACR Electronics, Inc. hereby declares that the following product is in conformity with Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on Radio Equipment and Telecommunications Terminal Equipment (R&TTE). In accordance with the...

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