Thank you sir, for this very helpful video. I was about to set forth on a diagnostic procedure to figure out what in the world is wrong with this tachometer i have. You have saved me who knows how much time.
Thanks for showing us this Shawn, I installed mine yesterday and couldn't find out why it was not working, After about a hour i thought it must run on 24 v as its marked up as dc8/24v, you just saved me a lot of time and head scratching, once again, Thanks from the uk.
Thanks for information, just received mine. In that case the JST plug has been wired back to front. So the label is printed wrong. I'll remove the wire's from the JST plug and put them in the right order. The blue wire is still pin 3. That should solve the problem.
Mine came through the post today, And i had a feeling that i should UA-cam it first, And boy im glad i came across your vid, or i would of wired it up wrong and may have burnt it out I am using a 12v psu and it works, so you don't need to get a 24v psu, that is it voltage limit Thank you ShawnMrFixitee
If you solder in a button on the bottom spot on the board you can change between 11 different modes including thermometer and counter, stopwatch, decimal place change and others.. theres a calibrate but dunno how to use that mode. But you can wire in a reset button on the middle 2 pins on the little 5 pin deal which is needed for some of the other modes. Not sure where the thermistor would go on the board but maybe where the reset switch goes .. may need to solder in some supporting components for that mode cuz it just reads 32°f or 0°c and doesnt change..
I hope, that you can help me, because the companies, producing this product do not answer satisfying. I need a tachometer, which provides a DC voltage which is growing with the speed. Can you measure with the speed a growing DC voltage between the ports 43 or 41? I need this voltage for another control to adjust the gas on a static diesel engine. It would be very nice, if you could provide me with this information.
@@shawnmrfixitlee6478 I will use the Mitsubishi-engine L2E and the control I use is called 16x2. It is from the Austrian company Technische Alternative. It uses a 0 to 10V signal for controlling. It is very kind of you to help me that much!👍
@@doliwsef www.ebay.com/itm/165293681166?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1QIyO8yd9QG6c4ffhHldszQ53&norover=1&mkevt=1&mkrid=711-166974-028196-7&mkcid=2&mkscid=101&itemid=165293681166&targetid=2259088259507&device=c&mktype=pla_with_promotion&googleloc=9033152&poi=&campaignid=20823268534&mkgroupid=155757790786&rlsatarget=pla-2259088259507&abcId=9347991&merchantid=263834315&gclid=Cj0KCQiAwvKtBhDrARIsAJj-kTicKXar-HsBDYVRsEzXvGYG0LdwiJEo0ylvB41oYnwSuPqN8Rm3UhYaAt8fEALw_wcB These work well !
Depends on the switch in the mill . But I would say find the output hot wire on the switch and hook a 12v power supply to the output on the switch and feed the tach off of that .
Please, does it work for an old diesel motor car ? I was thinking mounting it, thr sensor in front of the crankshaft pulley. Do you think it will work? Max revolutions about 3500 rpm. Thanks for your help. I hope and like very much you are happy to help,
Nice job on the video and wiring diagram Shawn. I would like to know how to calibrate the tachometer. I have a situation where the tach is mounted on the drive shaft and then on the other end of the drive shaft is a different size diameter pulley with each different test. I would like to introduce a potentiometer so I can adjust the tach on the drive motor so that it compensates for the different size diameter pulleys on the other end. It is not possible to mount the sensor and magnet on the other end. One of the resistors such as R5, R8, R12, or R21 should be able to be replaced with a potentiometer. What would you advice here?
Your way to deep in the tech for this simple china made device .. Sorry but it only will read the shaft RPM it is installed on ... Wish I could help you better but it has no way of being programmed .. Thanks !!
If your pulley is keyed and set screw to the shaft it will turn with the same RPM .... A 1" shaft turning at say... 1000 RPM and you have a 6" and a 10" Pulley on that shaft.... They will all turn at the same RPM.... Now the MPH of the surface will be different.
I was wondering, since these are sold on ebay as essentially having 3 functionality. I am interesting to wire as simple counter using either a contact switch or magnetic switch. Would connect between 1 and 5 or 3 and 5?
The speed range is stated on the label - 10 rpm to 9,999 rpm with an error of 0.1% - just how good it actually is right down at 10 rpm would need a little test with a stopwatch (on your phone) and simply count the number of times shaft turns in a minute.
My first one read ~double speed, second one worked fine. Switched sensors, same result, first one musta been a dud. I got 'em really cheap in Ph. My application is a toy cnc machine so not much room for the supplied sensor. I made my own from an obsolete Y3144 Hall switch glued to thin aluminum plate and added a 5.1k pullup resistor across pins 1 and 5, sorry, YT doesn't allow images. Actually pins numbered 3 and 4 are ground and power for the sensor. My first post was rejected, now it shows. . . . and now it's gone again. Pop off the back cover and extract the board for easy access to the back of the connector. edit: ua-cam.com/video/fG8W4fWDamE/v-deo.html More than one way to skin a cat.
Turn your magnet over they only read with it in the right pole position .. some of these wire differently than others , depends on the china company that built it ..
Yes i do not get it he wired it up just as the sticker said to. He just he just put the numbers in a different order. he has power to is 5 which is 1 on the sticker and so on.
I have flipped the magnet, replaced the magnet, checked the proximity distance, replaced the display with an identical one, checked the wiring and the damn thing refuses to give me a readout. I get 4 zeros until I start the lathe and then I get either four dashes or flashing high numbers that immediately disappear. I can't for the life of me see what I am doing wrong. I have a couple of them in my shop and they work perfectly. ????????
I am at a loss on this one , I do know the have counter displays that look the same as the RPM displays and they will give random #s . Let me know if you find out what is wrong . Got me curious !!
@@shawnmrfixitlee6478 Thanks, I am going to try a new magnet tomorrow, I am too frustrated to keep messing with it tonight. I had to break the original magnet that it came with and substituted one from my junk box so maybe it's no good.
@@shawnmrfixitlee6478 yeah I changed them to your diagram and the power polarity is correct so I am very frustrated. I will let you know how it pans out tomorrow.
many of them now come without a back plate, but you can look on Banggood or Aliexpress and get the wiring diagram. half of them now only have 3 or 4 wires
Thank you sir, for this very helpful video. I was about to set forth on a diagnostic procedure to figure out what in the world is wrong with this tachometer i have. You have saved me who knows how much time.
Sub up My friend I have many of these trick vids .. Thanks !!
Yes, 3.5 years after your video, you are still correct. Thank you for the info, much appreciated ;)
Yes sir & thanks ! I have had so many folks say I am wrong .. But this is what worked for me !
Thanks for showing us this Shawn, I installed mine yesterday and couldn't find out why it was not working, After about a hour i thought it must run on 24 v as its marked up as dc8/24v, you just saved me a lot of time and head scratching, once again, Thanks from the uk.
Just purchased one f these, will keep this in mind in case the same issues still exist, thanks
I've already had some fun with my digital tacho Shawn. You've proved that works.
Thank you very much for sorting out the proper connection for us. Appreciated wholeheartedly.
No prob , & Thanks !
Thanks for information, just received mine.
In that case the JST plug has been wired back to front. So the label is printed wrong.
I'll remove the wire's from the JST plug and put them in the right order. The blue wire is still pin 3.
That should solve the problem.
Mine came through the post today,
And i had a feeling that i should UA-cam it first,
And boy im glad i came across your vid, or i would of wired it up wrong and may have burnt it out
I am using a 12v psu and it works, so you don't need to get a 24v psu, that is it voltage limit
Thank you ShawnMrFixitee
Glad I could help , Thanks !!
Just got mine today! Thanks for the tip!
Thanks for making the DIY life easy bro !!
If you solder in a button on the bottom spot on the board you can change between 11 different modes including thermometer and counter, stopwatch, decimal place change and others.. theres a calibrate but dunno how to use that mode. But you can wire in a reset button on the middle 2 pins on the little 5 pin deal which is needed for some of the other modes. Not sure where the thermistor would go on the board but maybe where the reset switch goes .. may need to solder in some supporting components for that mode cuz it just reads 32°f or 0°c and doesnt change..
Great video Shawn!!!👌
Thanks ..
Do you remember where you got your light sensor and name please? @@shawnmrfixitlee6478
Thanks MrFixitLee - great help 👍🏼
Happy to help!
Super Tipp mit der Verkabelung Danke
Nice Video....Thanks for your help !
You are most welcome
Thanks so much great help👍
Glad it helped , Thanks !
I hope, that you can help me, because the companies, producing this product do not answer satisfying. I need a tachometer, which provides a DC voltage which is growing with the speed. Can you measure with the speed a growing DC voltage between the ports 43 or 41? I need this voltage for another control to adjust the gas on a static diesel engine. It would be very nice, if you could provide me with this information.
sorry others have ask that same thing and it can't be done with this unit ..
@@shawnmrfixitlee6478 Thank you very much with this information. Do you know a tachometer providing this benefit?
let me look for ya .. what make of diesel you got there ?@@doliwsef
@@shawnmrfixitlee6478 I will use the Mitsubishi-engine L2E and the control I use is called 16x2. It is from the Austrian company Technische Alternative. It uses a 0 to 10V signal for controlling. It is very kind of you to help me that much!👍
@@doliwsef www.ebay.com/itm/165293681166?chn=ps&_trkparms=ispr%3D1&amdata=enc%3A1QIyO8yd9QG6c4ffhHldszQ53&norover=1&mkevt=1&mkrid=711-166974-028196-7&mkcid=2&mkscid=101&itemid=165293681166&targetid=2259088259507&device=c&mktype=pla_with_promotion&googleloc=9033152&poi=&campaignid=20823268534&mkgroupid=155757790786&rlsatarget=pla-2259088259507&abcId=9347991&merchantid=263834315&gclid=Cj0KCQiAwvKtBhDrARIsAJj-kTicKXar-HsBDYVRsEzXvGYG0LdwiJEo0ylvB41oYnwSuPqN8Rm3UhYaAt8fEALw_wcB These work well !
How can these be hooked up its power source to the mills startup power. So it comes on when the mill is started.
Depends on the switch in the mill . But I would say find the output hot wire on the switch and hook a 12v power supply to the output on the switch and feed the tach off of that .
Please, does it work for an old diesel motor car ? I was thinking mounting it, thr sensor in front of the crankshaft pulley. Do you think it will work?
Max revolutions about 3500 rpm. Thanks for your help. I hope and like very much you are happy to help,
Sure it would work on any rotating shaft ! Thanks .
Great tip Shawn.
Thanks Harold !
Nice job on the video and wiring diagram Shawn. I would like to know how to calibrate the tachometer. I have a situation where the tach is mounted on the drive shaft and then on the other end of the drive shaft is a different size diameter pulley with each different test. I would like to introduce a potentiometer so I can adjust the tach on the drive motor so that it compensates for the different size diameter pulleys on the other end. It is not possible to mount the sensor and magnet on the other end. One of the resistors such as R5, R8, R12, or R21 should be able to be replaced with a potentiometer. What would you advice here?
Your way to deep in the tech for this simple china made device .. Sorry but it only will read the shaft RPM it is installed on ... Wish I could help you better but it has no way of being programmed .. Thanks !!
If your pulley is keyed and set screw to the shaft it will turn with the same RPM .... A 1" shaft turning at say... 1000 RPM and you have a 6" and a 10" Pulley on that shaft.... They will all turn at the same RPM.... Now the MPH of the surface will be different.
@@pbc1951 Yes sir . It takes some figuring but they work well !
Very accurate and useful too.
I was wondering, since these are sold on ebay as essentially having 3 functionality. I am interesting to wire as simple counter using either a contact switch or magnetic switch. Would connect between 1 and 5 or 3 and 5?
not sure on that . I would try both one at a time and see how it works ! I had to mess with this one before I figured it out . Thanks..
Cool Shawn if you are cutting left hand threads does the tach read negative 816 ?? Very handy thing to have on a lath I have one on my drill press..
Nope it will read the same forward or backward , Thanks Dan !
Thank you 👍
Indeed useful video
thanks man !!
Could this work on a diesel truck?
I don't see why not .. thanks !
How accurate are they in a low rpm application? Let's say between 10 to 50 rpm? Thanks for posting the video!
they seem to work fine at any RPM , Thanks !!
the ones i see have a refresh rate of 0.2 - 0.5 seconds, so thats 120 rpm probably the low end with any accuracy
The speed range is stated on the label - 10 rpm to 9,999 rpm with an error of 0.1% - just how good it actually is right down at 10 rpm would need a little test with a stopwatch (on your phone) and simply count the number of times shaft turns in a minute.
Wired like yours I get LLLL on the screen , when passed over the magnet the LLLL dims a little but records no speed. Any ideas?
have you tried flipping the magnet ! Also double check your wires to be sure they are right ..
@@shawnmrfixitlee6478 I did yeah. Even a stronger magnet, wiring all checked and found the unit to be faulty.
@@union310 They are cheap china goods ! many have failed I am sure .. Hope you get a good one as they are nice to have ! Thanks ..
I've got a doubt here sir. Should we put a magnet or the sensor of tachometer has the magnet integrated in head of sensor?
Thanks!
NOPE .. the sensor is just that , It picks up the pulse of the magnet! You need both to make it work .. Thanks !
@@shawnmrfixitlee6478 does all of these stuf comes with this tachometer? I mean for tachometer with these wires that you connect? Thanks for replies.
@@RinorBislimi yes sir , Comes with the whole kit !
Does the sensor need a dot?
no the sensor uses a magnet , thanks
How did you power the tachometer?
I just used a 12v wall adapter and found + & - with a meter and wired it in .. Thanks !!
Does this get wired to some power source?
Yes .. I used a simple wall wart adapter in 12v .. Thanks !
Thanks a lot men!
Very cool Bud!! Hopefully they're both not equally inaccurate eh!!☺
no the one I use for testing is very good . Thanks King !
My first one read ~double speed, second one worked fine. Switched sensors, same result, first one musta been a dud. I got 'em really cheap in Ph. My application is a toy cnc machine so not much room for the supplied sensor. I made my own from an obsolete Y3144 Hall switch glued to thin aluminum plate and added a 5.1k pullup resistor across pins 1 and 5, sorry, YT doesn't allow images.
Actually pins numbered 3 and 4 are ground and power for the sensor.
My first post was rejected, now it shows. . . . and now it's gone again. Pop off the back cover and extract the board for easy access to the back of the connector.
edit:
ua-cam.com/video/fG8W4fWDamE/v-deo.html
More than one way to skin a cat.
Will this work On a Chinese moped
I would not use it on one..
I'm confused, you have changed the terminal #s but the color code order remains the same, I have wired it both ways and still no rpm
Turn your magnet over they only read with it in the right pole position .. some of these wire differently than others , depends on the china company that built it ..
Yes i do not get it he wired it up just as the sticker said to. He just he just put the numbers in a different order. he has power to is 5 which is 1 on the sticker and so on.
Kudos bro!!
It fits in a car???
Never tried one on a car .. Not sure ??
THANKS DUDE
No Prob ! Glad to help ..
Cool.
Thanks !!
Thank you
No problem , Thanks for stopping by !!
I have flipped the magnet, replaced the magnet, checked the proximity distance, replaced the display with an identical one, checked the wiring and the damn thing refuses to give me a readout. I get 4 zeros until I start the lathe and then I get either four dashes or flashing high numbers that immediately disappear. I can't for the life of me see what I am doing wrong. I have a couple of them in my shop and they work perfectly. ????????
I am at a loss on this one , I do know the have counter displays that look the same as the RPM displays and they will give random #s . Let me know if you find out what is wrong . Got me curious !!
I was hoping for some advice.
@@oldsloane I know , Sorry man !! Sounds like you hit all the things I would try .. Are you sure the wires are all right ??
@@shawnmrfixitlee6478 Thanks, I am going to try a new magnet tomorrow, I am too frustrated to keep messing with it tonight. I had to break the original magnet that it came with and substituted one from my junk box so maybe it's no good.
@@shawnmrfixitlee6478 yeah I changed them to your diagram and the power polarity is correct so I am very frustrated. I will let you know how it pans out tomorrow.
where to buy?
EBAY. Thanks !
How I wish that you make a video on diesel cars. Thanks
Thanks, typical Chineese, cant be bother to include a wiring diagram
for sure , And if the did we could not read it ..LOL.. Thanks ..
its probably because the market was mostly aimed for chinese people and chinese people are smart that they dont need a manual in the first place
many of them now come without a back plate, but you can look on Banggood or Aliexpress and get the wiring diagram. half of them now only have 3 or 4 wires
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