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Water sensor activation: 

4. Activating your TB-520

1. TB-520 Overview

Manual activation:

COPYRIGHT

DISCLAIMER

USER GUIDE

2. Equipments in the Box

AMEC is devoted to publish and maintain this product manual. As we continue 
to improve our AIS products to satisfy all customers’ needs, information in this 
document is subject to change without notice. AMEC does not make any 
representations or warranties (implied or otherwise) regarding the accuracy 
and completeness of this document and shall in no event be liable for any loss 
of profit or any commercial damage, including but not limited to special, 
incidental, consequential, or other damage.

The entire contents of this instruction manual, including any future updates, 
revisions, and modifications, shall remain the property of AMEC at all times. 
Unauthorized copies or reproduction of this manual, either in part or whole, in 
any form of print and electronic media, is prohibited. The contents herein can 
only be used for the intended purpose of this manual.

WARNING: 

This device is authorized for use only in a true emergency. Deliberate misuse 

may cause expensive rescue disruption and incur penalty.

WARNING: 

Please carefully read the instructions and get familiar with the test and 

activation procedures before using the device.

WARNING: 

An AIS-MOB Man overboard device is only intended for short range signalling 

to an AIS receiver installed onboard your own vessel. It will not directly alert the 
emergency services or other vessels.

WARNING: 

This equipment is not intended for routine tracking of persons or property. This 

includes tracking of divers.

WARNING: 

If self-test is performed more frequently than once a month, then battery life 

may be reduced.

Caution: 
when deploying 
antenna, be careful 
in its spring action 
to avoid eye injury.

1) Pull off the red antenna cap to 

release the antenna.   

1) Antenna cap
2) Antenna
3) Battery LED (Green/Red)
4) Strobe LED
5) GPS LED (Green/Red)
6) Lanyard (to prevent loss of parts)
7) Test area
8) Water sensor
9) Test tab with magnet on back side
10) Activation tab

The AMEC TB-520 is a Man Overboard Beacon using AIS technology. It greatly 
enhances the chance of MOB retrieval by alerting nearby vessels equipped 
with AIS. 
In emergency situations, the beacon can be activated either automatically by 
water sensor or manually and send out alert messages, GPS position informa-
tion and a unique ID. Its high performance GPS receiver enables the beacon 
quickly obtaining GPS coordinates. 
Built with state-of-the-art technology, TB-520 is small and lightweight, easy to 
use and totally reliable to keep your journey safe and sound.

2)Pull the activation tab off the TB-520 

and the device will start transmitting 
alert messages immediately. 

2)When the water sensor embedded at 

the bottom side of the device is 
immersed in water for more than 3 
seconds, the device will be activated 
and starts transmission. 

1) Pull off the red antenna cap to release 

the antenna.    

Caution: 
when deploying 
antenna, be careful 
in its spring action 
to avoid eye injury.

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3. Installing TB-520 on Lifejacket

The TB-520 is supplied as default with a clip to attach the device 
to lifejacket strap.

1) Strap Clip

The TB-520 is delivered with an alternative clip which can be 
attached to the lifejacket’s oral tube. The Clip is designed to be 
installed on left or right side of the oral tube.

2) Oral Tube Clip

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TB-520 AIS MOB  x1
Carrying pouch x1
User guide x1
Oral clip x1
Test tab x1

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S/N(UNIQUE ID

):

972160001

JUL
 2015

BA

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7

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AIS Man Overboard Beacon

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TB-520

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Version: 1.1

Tel:

 

+

886 2 8691 8568

Fax:

 

+

886 2 8691 9569

Email: [email protected]
Website: www.alltekmarine.com

Alltek Marine Electronics Corporation

14F-2, No. 237, Sec. 1, Datong Rd., 

Xizhi, New Taipei, 22161, Taiwan

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