Adaptor or fitting for m12x1.5 temp sensors?
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- Posts: 19
- Joined: Tue Apr 19, 2011 1:46 am
Adaptor or fitting for m12x1.5 temp sensors?
Has anyone found a place that sells adapters or t fittings to plug the m12x1.5 temp sensors into?
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- Posts: 19
- Joined: Tue Apr 19, 2011 1:46 am
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- Posts: 19
- Joined: Tue Apr 19, 2011 1:46 am
I potted a LM19 temperature sensor into a VDO brass case for temp sensors. The LM19 is ~$1 each at Digikey and the VDO sensor is ~$9 or so. Use a torch to melt out the guts then use a high metal content epoxy to glue the sensor in the bottom of the brass case. I used stiff heat shrink to provide some strain relief to the wires.
The two I have installed have lasted ~5 years in service.
The nice thing about the LM19 is that it has a decent range and resolution, it linear, is three wire (power, ground and signal - don't need to mess with a resistor pull up network) and it's cheap. There are others available as well.
The two I have installed have lasted ~5 years in service.
The nice thing about the LM19 is that it has a decent range and resolution, it linear, is three wire (power, ground and signal - don't need to mess with a resistor pull up network) and it's cheap. There are others available as well.
BMW 2000 M Coupe
I'm with osborni - I get my senders from egauges.com (actually not too far from me). I tend to prefer the VDO senders, based on my success (durability) with them in my Porsche (OEM fitment).
Likewise, yes, for adapters, local HW store if brass is OK, or either Pegasus or even McMaster-Carr for lighter and aluminum stuff. Or sometimes weld-on bungs are preferable, I find HRP Racing has a pretty good selection - just got a coolant temp switch and Al bung from them for a warning light (though it's a bit of a monster at 1/2 NPT!).
Likewise, yes, for adapters, local HW store if brass is OK, or either Pegasus or even McMaster-Carr for lighter and aluminum stuff. Or sometimes weld-on bungs are preferable, I find HRP Racing has a pretty good selection - just got a coolant temp switch and Al bung from them for a warning light (though it's a bit of a monster at 1/2 NPT!).
Also note, if you have access to a lathe or even a local engineering shop, a 12 x 1.5mm can be turned down and re-threaded to 1/8NPT.
Surprisingly, most engineering text will show that it wont work since the theoretical minor diameter of a 12 x 1.5 thread is smaller than the major diameter of 1/8NPT, however I have machined many bosch sensors this way and they all clean up with perfect threads.
Surprisingly, most engineering text will show that it wont work since the theoretical minor diameter of a 12 x 1.5 thread is smaller than the major diameter of 1/8NPT, however I have machined many bosch sensors this way and they all clean up with perfect threads.
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