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HR Smith Techtest 503-19-12 User Manual

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MAINTENANCE MANUAL
FOR
EMERGENCY LOCATOR TRANSMITTER
TYPE 503 SERIES
Issue 17 - 11.04.18
CN 10407
HRS1013-04-02
Commercial In Condence
Techtest
Limited
Street Court
Kingsland, Leominster
Herefordshire HR6 9QA, England
Telephone: +44(0)1568 708 744
E-mail: street@hr-smith.com
Fax: +44(0)1568 708 713
www.hr-smith.com
Emergency
Location
and Rescue
Equipment
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HR Smith Techtest 503-19-12 Specifications

General IconGeneral
BrandHR Smith
ModelTechtest 503-19-12
CategoryTransmitter
LanguageEnglish

Summary

SYSTEM DESCRIPTION

System Overview

Description of the Techtest Limited 503 Series Emergency Locator Transmitter (ELT) system and its capabilities.

LINE REPLACEMENT UNITS (LRUS)

ELT 503-1

Details of the ELT 503-1, the basic transmitting unit with battery and antenna port.

G-Switch Series

Description of G-Switch variants (503-7, 503-19, 503-35, 503-36) for automatic ELT activation.

Remote Controller

Information on the Remote Controller (503-4, 503-17, 503-20, 503-52, 503-53) for testing and operating the ELT.

Interface Unit 503-15 Series

Description of the Interface Unit (503-15 Series) for passing GPS data to the ELT.

Water Activated Switch 503-23-1

Details of the Water Activated Switch (503-23-1) for automatic ELT activation upon immersion.

SERVICING

Battery Replacement

Guidelines for replacing the ELT and G-Switch batteries based on age or usage.

Troubleshooting

Guidance on identifying and resolving faults within the ELT system using built-in tests.

RECHARGING & CONDITIONING THE G-SWITCH BATTERY PACK

Testing the Battery Pack

Methodology for testing the battery pack's condition using load tests and terminal voltage measurements.

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