FUEL TEMPERATURE INDICATING SYSTEM - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The fuel temperature sensor is used to supply a signal to the Electronic Engine Control (EEC) to control the temperature of the fuel returned to the wing tank and also to monitor engine fuel overheat.
** ON A/C NOT FOR ALL The fuel temperature sensor is used to supply a signal to the Electronic Engine Control (EEC) to control the temperature of the fuel returned to the wing tank and also to monitor engine fuel overheat.
2. Component Description
The fuel temperature sensor is an integral part of the Integrated Fuel Pump and Control (IFPC). It is a Resistance Temperature Device (RTD), made up of a dual sensing element, a housing assembly and an electrical connector. The fuel temperature sensor is a Line Replaceable Unit (LRU).
** ON A/C NOT FOR ALL The fuel temperature sensor is an integral part of the Integrated Fuel Pump and Control (IFPC). It is a Resistance Temperature Device (RTD), made up of a dual sensing element, a housing assembly and an electrical connector. The fuel temperature sensor is a Line Replaceable Unit (LRU).
3. System Description
The fuel temperature sensor is used to sense the fuel temperature as it leaves the Fuel/Oil Cooler and returns to the fuel manifold. Excess system fuel is returned to the fuel tank and the temperature is controlled by the fuel temperature sensor signal to the EEC. The engine fuel temperature is not shown in the cockpit.
The sensor is a dual-channel supplying both Channels A and B with independent signals. The resistance of the sensor elements changes when the fluid temperature surrounding it changes. The EEC uses the feedback from the RTD to monitor the system fuel temperature and control for the Return To Tank (RTT) fuel flow.
The fuel temperature sensor is used to sense the fuel temperature as it leaves the Fuel/Oil Cooler and returns to the fuel manifold. Excess system fuel is returned to the fuel tank and the temperature is controlled by the fuel temperature sensor signal to the EEC. The engine fuel temperature is not shown in the cockpit.
The sensor is a dual-channel supplying both Channels A and B with independent signals. The resistance of the sensor elements changes when the fluid temperature surrounding it changes. The EEC uses the feedback from the RTD to monitor the system fuel temperature and control for the Return To Tank (RTT) fuel flow.