- Joined
- Nov 12, 2002
- Location
- Santa Rosa Ca
After several times unsuccessfully getting my temp sensor reading correctly in MT, and having only seen good data from LH2.2 sensors I decided to make my own chart to have values to enter into Easytherm for the LH2.4 sensor.
Here is a list I made of restive values using a LH2.4 temp sensor (Bosch # 0280130032 461 (050) sensor) it is a used sensor and I plan to do the testing again with a brand new one. I also will get some antifreeze to get higher than 100 deg temps. 0?C was measured in an DI water and ice slurry. Temps were stabilized until the resistive reading stabilized.
DATA REMOVED BECAUSE MY MEASUREMENTS WERE NOT TAKEN IN BETWEEN ONE PIN AND THE BODY OF THE SENSOR (thanks ZVLOV). I will update with proper data from 3 sensors when time allows.
Since I have access to some very high quality laboratory equipment I thought I'd get some good data. Resistance was read using a recently calibrated Fluke 87 series II multimeter. The 0-150 ?C thermometer's calibration is up to date and complies with all EPA and CDPH and what ever other regulatory industries control lab standards.
SS wire sensor holder:
http://i483.photobucket.com/albums/rr191/Magnumte/Volvo/Photo018.jpg
200mL beaker on hot plate:
http://i483.photobucket.com/albums/rr191/Magnumte/Volvo/Photo017.jpg
Calibrated thermometer on holder.
http://i483.photobucket.com/albums/rr191/Magnumte/Volvo/Photo019.jpg
Pretty snazzy eh? I will update the chart with values from 2 other old LH2.4 sensors as well as the new one.
From the Brick Board FAQ
Here is a list I made of restive values using a LH2.4 temp sensor (Bosch # 0280130032 461 (050) sensor) it is a used sensor and I plan to do the testing again with a brand new one. I also will get some antifreeze to get higher than 100 deg temps. 0?C was measured in an DI water and ice slurry. Temps were stabilized until the resistive reading stabilized.
DATA REMOVED BECAUSE MY MEASUREMENTS WERE NOT TAKEN IN BETWEEN ONE PIN AND THE BODY OF THE SENSOR (thanks ZVLOV). I will update with proper data from 3 sensors when time allows.
Since I have access to some very high quality laboratory equipment I thought I'd get some good data. Resistance was read using a recently calibrated Fluke 87 series II multimeter. The 0-150 ?C thermometer's calibration is up to date and complies with all EPA and CDPH and what ever other regulatory industries control lab standards.
SS wire sensor holder:
http://i483.photobucket.com/albums/rr191/Magnumte/Volvo/Photo018.jpg
200mL beaker on hot plate:
http://i483.photobucket.com/albums/rr191/Magnumte/Volvo/Photo017.jpg
Calibrated thermometer on holder.
http://i483.photobucket.com/albums/rr191/Magnumte/Volvo/Photo019.jpg
Pretty snazzy eh? I will update the chart with values from 2 other old LH2.4 sensors as well as the new one.
From the Brick Board FAQ
ECT resistance cold for LH2.4 systems should be around 6k ohms at 32 degrees F (0 deg C), 2300-2700 ohms at 68 degrees F (20 C), and 200 at 212 F (100 C).
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