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| mill spindle speedo.. |
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| stirling lad:
John, Andrew,, thanks for your quick replies,,, So you reckon it's do-able even for an electrophobe like me... thats encouraging... It says=detected objects- magnet. so would i just fit one of those neodymium magnets somewhere on top of my pulley with the sensor facing it and just bring it in closer until the sensor picks it up? or does it mean the sensors magnetic and i have to put a piece of ferrous metal on top of the pully..? ..m. |
| John Rudd:
My interpretation is that the probe detects the presence of a magnetic body, in which case you will need to attach a magnet to the main spindle pulley, then mount the probe in such a fashion that it can be adjusted in relation to the magnet... I asssume the display units counts rpm's based on one pulse per rev? Else you would need more than one magnet.. |
| chipenter:
I have one and the sensor is magnetic and will detact iron , so iff your pully is ally fit a peice of steel or drill a hole if the pully is steel , two magnets will only work up to about 900 rpm on mine . |
| John Rudd:
From the sellers bumf... -Hall proximity model:NJK-5002C . -Detected objects: Magnet. -Detection range: 1mm-10mm. -Proximity output current: 20mA(For the sensor). -Operating temperature: -10 to 60°C. -Sensor wiring:brown(Power+),blue(Power-),black(signal). -Sensor size: 37 x 12 x 10mm. So, needs a magnet.... Try it, what have you to lose? Either works or not.... :) :D |
| awemawson:
Read Normans thread - it does not need or want a magnet as such, just what is is detecting needs to be able to be attracted BY a magnet. A simple hole or sticking out bolt head will do fine. |
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