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1381GR XMTR-TEMP, G RSVR 146 734 29-33-11
 2381GR XMTR-TEMP, B RSVR 197 197FB 29-33-11
 3381GR XMTR-TEMP, Y RSVR 196 196BB 29-33-11
 3. System Description__________________
 The indicating system sends fluid temperature data to the electronic centralized aircraft monitor (ECAM). Discrete signals also make the FAULT light on the overhead panel come on.
 The temperature of the hydraulic fluid is monitored at the outlet of the low pressure (LP) filter of each system. The LP filter is the last component in each system before the fluid returns to the reservoir of that system. A temperature transmitter is installed on the head of each system LP filter. Each temperature transmitter sends analog signals to each system data acquisition concentrator (SDAC) (for ECAM) and a discrete signal to the SDAC and overhead panel (for FAULT light).
 4. Component Description_____________________ (Ref. Fig. 002)
 A. Temperature Transmitters (1381GR/2381GR/3381GR)
 The three temperature transmitters are all the same and are interchangeable. Each temperature transmitter has three sensors together in one unit. The body of the temperature transmitter has an electrical connector and a bonding stud attached to it. The sensors are of two types:
 -a temperature switch which sends the discrete signal to the overhead panel and ECAM (through the SDAC)

 Component Location
 Figure 001
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 Temperature Transmitter
 Figure 002
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 - two temperature transducers which provide the analog signals for the two ECAM displays (via the SDAC).
 The temperature switch is set to operate at 95 +2.2 -2.2 deg.C (203.00 +3.96 -3.96 deg.F) and to reset if the fluid temperature is equal to or greater than 88.4 deg.C (191.12 deg.F).
 The temperature transducers measure fluid temperatures between minus 55 deg.C (131.00 deg.F) and plus 120 deg.C (248.00 deg.F) with an accuracy of plus 2.2 deg.C (35.96 deg.F) and minus 2.2 deg.C (35.96 deg.F)
 NOTE : Temperature transducers are used so that it will be possible (as____ an option) to show actual fluid temperature on the ECAM display as well as the warning which is shown at present.
 5. Operation_________
R R R R R  The temperature transmitters monitor the temperature of the hydraulic fluid in the return line. When the temperature of the fluid reaches 92.8 deg.C (199.04 deg.F), the temperature transducers send an analog signal and the "OVHT" legend on the system display of the ECAM comes on in amber. When the temperature of the fluid goes higher than 95 +2 -2 deg.C (203.00 +3.60 -3.60 deg.F) the temperature switch in the transmitter closes. A discrete signal then goes through the SDAC and the FWC to the overhead panel.
 The following warnings occur: - the single-chime audio warning operates, - the MASTER CAUT lights on the glareshield come on, - the applicable FAULT light(s) come(s) on on the overhead panel, - the applicable warnings are shown on the system and engine/warning displays of the ECAM. At the same time, the two transducers in the temperature transmitters send analog data to the two SDAC. If the transducer data shows that the temperature of the fluid is more than 98 deg.C (208.40 deg.F) (and the SDAC have not received a discrete signal from the temperature switch), then the FWC start FAULT procedure. The warning indications are the same as above.
 NOTE : The FAULT light(s) (if applicable) and the warning ("HYD Y (G/B) RSVR____ OVHT") on the engine warning display stay on as long as the temperature of the fluid is too high.

 

R  Temperature Monitoring Figure 003
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 TRANSMITTER TEMPERATURE (1381GR,2381GR,3381GR) - REMOVAL/INSTALLATION
_____________________________________________________________________
 TASK 29-33-11-000-001
 Removal of the Temperature Transmitter (1381GR)
 WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
 WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
　
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