Thread: Wow - huge price difference

G'Day,
After playing with a few sensors ,settled on the Omron EE-SPY 312, Diagram attached, see previous posts for photo. Power supply is a regulated 12 volt D.C. 1 Amp (ex telephone answering machine).
Regards,
MartinScan1.JPG

Originally Posted by toolman49

G'Day,
After playing with a few sensors ,settled on the Omron EE-SPY 312, Diagram attached, see previous posts for photo. Power supply is a regulated 12 volt D.C. 1 Amp (ex telephone answering machine).
Regards,
MartinScan1.JPG

Hi Martin, been to the Uxcell website and can't find a Omron EE-SPY, do you have a link to it, thanks shane.

Hi,
Link here Light Opto Sensor EE-SPY302 Photo Micro Switch Control | eBay I notice the price has gone up I paid $9.50,
Regards,
Martin

Originally Posted by toolman49

Hi,
Link here Light Opto Sensor EE-SPY302 Photo Micro Switch Control | eBay I notice the price has gone up I paid $9.50,
Regards,
Martin

Hi Martin, is the 302 the same as the 312 that you used, thanks Shane.

G'Day Shane,
The SPY 302 and 312 are electrically identical, the only difference is the mounting holes,
Regards,
Martin

Originally Posted by toolman49

G'Day Blokes, (& Blokesses)Attachment 232975Attachment 232977
Setup the Omron EE-SPY reflective sensor and am most impressed, dead stable, almost instant response, no need for a sector plate, just a bit of black electrical tape on the spindle,(will add a stripe of black paint eventually). Hookup dead easy, it needed a pullup resistor, the case is from Jaycar, cut in half so you get 2 for the $18.00. Total cost tacho $12.00, sensor $9.25, case $9.00. not bad for $30.00 all up. Have fun playing with your versions.
Regards,
Martin

Hi Martin, just one more silly question, the black tape, does it cover 1/2 the circumference of the shaft, thanks Shane.

Yep

I finally got around to assembling my tacho. I used the same setup as shown in Martin's circuit above, only I substituted a 10K resistor for RL. I'm running 22v and 200 ohms seemed a bit low. I've only tried it with the sensor (Omron EE-SPY312) held in my hand, but it works very well. These optical sensors seem very tolerant of mounting distance and surface finish. To test mine I simply wrapped a strip of black electrical tape half way around the body of my ER40 collet.

I also found an eBay seller who sells the special sockets for connecting the EE-SPY series of sensors. $3.99 for 2 of them with free postage. Search eBay for "E1001".

Chris