ThermistorCalibration

From John Clarke Mills Project Wiki

Revision as of 00:08, 22 July 2006 (edit) Millsj (Talk | contribs) ← Previous diff		Current revision (04:58, 26 July 2006) (edit) (undo) Millsj (Talk | contribs) m
(One intermediate revision not shown.)
Line 1:		Line 1:
-	Temperature sensors:	+	The temperature sensors were ordered from my local independent BMW parts dealer. OEM part number 62110788115. They are just the simple one wire-hookup type, the housing is the ground. They were very easy to calibrate actually. A lot easier than I thought. Just get yourself a known working thermometer and freeze and boil some water measuring the Ohm's at 3 three known intervals. Here are my results:
	{|		{|
	| <b>F</b>		| <b>F</b>
	| <b>Ohms</b>		| <b>Ohms</b>
		+	|-
		+	|44
		+	|1.300
	|-		|-
	|80		|80
	|0.568		|0.568
-	|-
-	|44
-	|1.300
	|-		|-
	|185		|185
	|0.73		|0.73
	|}		|}
		+
		+	I then plugged them into my MegaSquirt and they all checked out. That simple.
		+
		+	[[Image: Thermistor calibaration.JPG]]

---

Current revision

The temperature sensors were ordered from my local independent BMW parts dealer. OEM part number 62110788115. They are just the simple one wire-hookup type, the housing is the ground. They were very easy to calibrate actually. A lot easier than I thought. Just get yourself a known working thermometer and freeze and boil some water measuring the Ohm's at 3 three known intervals. Here are my results:

F	Ohms
44	1.300
80	0.568
185	0.73

I then plugged them into my MegaSquirt and they all checked out. That simple.