Search Results (Searched for: Cabin Temperature Sensors)

25 Nov 2019 08:30 - 25 Nov 2019 08:32
Aft Cabin Temperature Sensors was created by Mark
Schematic Manual shows two different locations, but all three are above ceiling panel at station 750 (slightly right of center-line).

TS186 AFT DUCT TEMP BULB (STA 770 WL 305 LBL 18)

S23 AFT CABIN ZONE DUCT OVHT (STA 753 WL 302 LBL 17)



TS179 AFT CABIN ZONE DUCT AIR TEMP SNS (STA 770 WL 305 LBL 17)



20 Apr 2017 14:08 - 20 Apr 2017 14:10
Decade Box was created by Mark
A Decade Box can be used for sensor simulation. The majority of temperature related sensors used on aircraft are resistance based. Resistance substitution can come in very handy for troubleshooting numerous systems. Window heat, cabin temp/control, engine indications, and overheat warnings are among some of the uses for a decade box.

Decade boxes can also come with capacitance and inductance substitution. I have found no uses for either.

Most resistance substitution boxes are not designed for power applications, ½ watt is the usual maximum power. Aircraft systems that use resistance for temperature measurement rarely exceed this value.

Just as a note: Caution should be followed when substituting a resistance for window heat sensors. The window can easily overheat and crack.

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