FirePro® FPX103C

• Dual detection loops with full fault monitoring.
• Automatic extinguisher operation after shutdown.
• Coincidence automatic activation logic.
• Automatic Engine/fuel/fan shutoff capability.
• “Spindown” delay ensures extinguishant is not vented.
• Extinguisher activation button with anti-tamper tag.
• Universal 12 or 24Vdc electrical power.
• Low power consumption in “PARKED” mode.
• Full fault monitoring on all detector and firex circuits.
• Supports up to 6 aerosol fire extinguisher/generators.
• Very low false activation potential, tamper seal on ManOp
• The unit is reverse polarity, transient and EMC protected.
• Custom behaviour logic available on request.

Shutdown and delayed extinguishing activation improves effectiveness and saves cost of extra extinguishant. Most existing extinguishing systems release the agent into a high airflow environment which makes it almost completely ineffective. Given that a 7 Litre 4 stroke engine at 3000RPM (that’s 50revs/sec) aspirates 175 Litres or 0.175m3 of air per second, add to this ventilation fan flow and the necessity for a shutdown with engine/fan spindown delay before activation is obvious.

The FPX103C has effectively eliminated spurious activation warranty costs which are regularly caused by the inherent characteristics of microprocessors, semiconductor power switches and inquisitive fingers. Our tamper evident tag technology and our strict electronic design rules have proven highly effective. To eliminate the inherent hazards of microprocessor control the FPX103C uses a fully parallel path programmable logic device, which is coded using a language called VHDL, commissioned by US DOD and used for high reliability and safety critical applications.

Features

2-wire smoke, thermal or Linear Heat Sensors up to 50m are continuously monitored for alarms, open circuit and chassis faults. LED flash codes indicate the location of an alarm or fault condition.

An internal alarm sounder and relay to drive a loud external audible alarm unit up to 2 Amps are also included.

Uncommitted relay change-over contacts are available for fuel shutoff or engine/fan shutdown.

The delay option provides a selectable spin-down time so that the extinguishant is not wasted.

“PARKED MODE” is entered when unit senses that ignition is turned off and provides automatic extinguisher operation should both loops alarm - switching off engine during a double alarm will also enter timed auto activation mode (aka driver “legging it” protection).

There is an electrical input for an override key-switch to circumvent shutdown circuits for restarting.

 ELECTRICAL SPECIFICATION (at 24VDC supply unless otherwise stated):