Gas-temperature-monitor-detection


Posted on Jul 27, 2012

This circuit can be used to measure exhaust gas temperature in a furnace. The 10-bit LTC1091A gives 0.5°C resolution over a ooc to 500°C range. The LTC1050 amplifies and filters the thermocouple signal, the LT1025A provides cold junction compensation and the LT1019A provides an accurate reference. The ]-type thermocouple characteristic is linearized digitally inside the MCU.


Gas-temperature-monitor-detection
Click here to download the full size of the above Circuit.

Linear interpolation between known temperature points spaced 30°C apart introduces less than 0.1 oc error. The 20-K/10 KO divider on CHI of the LTC1091 provides low supply voltage detection. Remote location is easy, with data transferred from the MCU to the LTC1091 via the three-wire serial part.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Monostable multivibrator schematic
Optical communication system
Pulse-Width Modulator
Low Voltage Step-Down Converter
How to Make a Cell Phone RF Signal Detector Circuit
remote field recorders automated frog call data loggers
heater with ckm005 microcontroller
door opener science project
new laser warning sticker
Schematic 2.1 Channel Systems-Dual Power Amplifier TDA7240 and TDA1517Circuits
PLL SINGLE TONE DECODER



Top