Description
TYCO SAFETY PRODUCTS
557.203.021
MX LOOP TESTER
ECO3838 MOD TO UPGRADE
TRANSISTOR Q7 (PCB REV 4)
N308
LB0599B
The Tyco Safety Products MX Loop Tester is a dedicated diagnostic tool designed to test and verify the integrity of addressable detection loops within marine fire alarm systems. Incorporating PCB revision 4 with the ECO3838 transistor Q7 upgrade modification, this unit supports accurate loop circuit assessment, helping maintenance personnel identify faults, confirm correct wiring, and validate system readiness. As a critical servicing instrument within the fire alarm system category, it plays a direct role in ensuring that detection loops remain fully operational — a fundamental requirement for vessel safety and regulatory compliance at sea.
Key Features
✓ Designed specifically for testing addressable MX series fire alarm detection loops, confirming circuit continuity and loop functionality.
✓ Incorporates PCB revision 4 with ECO3838 modification to upgrade transistor Q7, reflecting an engineering improvement for reliable performance.
✓ Compatible with Tyco MX series fire alarm panels and addressable loop configurations; system compatibility subject to confirmation for specific panel versions.
✓ Suitable for use during routine maintenance, commissioning, and fault-finding procedures onboard in accordance with fire safety servicing requirements.
✓ Compact tester format intended for use by trained service engineers; no permanent installation required — used as a portable diagnostic instrument.
Marine Applications
✓ Commissioning and periodic maintenance of addressable fire detection loops on merchant vessels, tankers, and offshore platforms.
✓ Fault diagnosis and loop verification on passenger ferries and cruise ships where fire alarm system uptime is critical.
✓ Pre-departure and scheduled safety checks on cargo vessels, bulk carriers, and container ships operating under SOLAS fire safety requirements.
✓ Onboard servicing support for fire alarm systems managed by vessel safety officers, electricians, or approved service technicians.
✓ Used during dry-dock and planned maintenance periods to validate fire detection loop integrity before system re-commissioning.
Why Marine Engineers Choose
The Tyco MX Loop Tester is a purpose-built instrument from a globally recognised fire safety brand, providing a reliable and straightforward method for verifying addressable loop performance — reducing diagnostic time and supporting efficient maintenance schedules at sea.
Ideal For
Merchant vessels, tankers, bulk carriers, container ships, passenger ferries, cruise ships, offshore platforms, and any vessel class requiring periodic fire alarm loop testing and maintenance under international safety regulations.
Technical Support
Technical support is available for this item and the broader Tyco MX fire alarm system. Assistance covers onboard installation guidance, repair considerations, and remote troubleshooting to help resolve loop or system issues efficiently.
