Exhaust Temperature Sensors, Banks 1 and 2

Exhaust Temperature Sensors, Banks 1 and 2







The signal from the exhaust temperature sensors of banks 1 and 2 installed at the turbine inlet is used in the DME control unit for component protection. The exhaust temperature is evaluated for each bank in the DME control unit, and is restricted to a maximum temperature of 1,767 °F. (980 °C) The two sensors are combined into one component unit together with their control unit. The measured signals are evaluated in this control unit.







The control unit sends a pulse/duty ratio (PWM) to the DME. The pulse/duty ratio range is from 4 % (corresponds to 25 °F/- 4 °C) to 96% (corresponds to 2,030 °F/1,110 °C). The control unit has a self-diagnosis function. If the control unit detects a cable break/short-circuit to the sensor or in the evaluation circuit, it sends the special pulse/duty ratio of 98 % to the DME and this leads to an entry in the fault memory.