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K2 Medidor kv / rpm con Ajuste de la velocidad del motor

K2 Medidor kv / rpm con Ajuste de la velocidad del motor

Discontinued Product

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Stock:
OUT OF STOCK
Peso:
53 g
SKU:
AKM-210
Descripción
del

Este medidor kv / rpm tiene algunas características únicas, incluyendo un potenciómetro que significa que no es necesario un ajuste de la radio o de servo para controlar y ajustar la velocidad del motor. Hay también una característica única que permite poner a prueba 1s ~ 12s impulsados ​​motores sin escobillas, por lo que casi no hay límite en el tamaño del motor esta gran pequeña herramienta puede manejar. El K2 tiene una función de lectura máxima, que es práctico para los datos que recuerdan y viene con una ventaja completa con clips de cocodrilo por lo que no se requiere soldadura, una herramienta indispensable para los aficionados que utilizan energía eléctrica.

Especificaciones:
Pantalla: LCD
Temp de trabajo: -20C ~ 50C
Peso: 21g
Dimensiones: 33mm x 69mm x 11mm
Rango de voltaje de funcionamiento: 5.5V ~ 42v
Medición de voltaje: 42v 0v ~

Product
Specifications

Información adicional

  • SKU (Número de Referencia):
    AKM-210
  • Brand:
    No
  • Peso ( g)
    53.00
  • Longitud
    100.00
  • Ancho:
    5.00
  • Altura:
    78.00
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It took me a while to figure out how to use this device. I was especially confused with the requirement that I enter in the "number of magnet pairs". This is because my test motor has six magnets but 9 poles. But, after experimenting with my laser tachometer, I was able to figure out that the magnet count is what matters and the value that I need to enter is the total number of magnets divided by 2, hence the term "pairs".

So, after "playing around" with this device using my test setup and my tachometer, I've discovered that this device is extremely accurate. As an example, this device gave 30,848 max rpm and my laser tach gave 30,867. That's a deviation of around 0.06 percent. Note that I didn't write "6.0" percent, I wrote "0.06" percent. I found the same kind of accuracy for KVM as well. This device has now become a very valuable addition to my hobby toolbox!
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Apologies to AEO for earlier review - seems it pays to READ THE INSTRUCTIONS!!



I had not set the requisite number of magnet pairs for the motors so the default setting of 6 pairs (12 magnets) accounts for the error in RPM and researching on the rc forums revealed that correct Kv is determined only at 100pcnt throttle.



Having set the correct magnet pair counts for each motor - the RPM is spot on with the laser and whether I use a 3S, 4S or 6S I get the same Kv value at 100pcnt throttle and guess what - they correlate with the motor specs..



Again, my apologies but i limit to 4 stars for the short cable and wandering pot..



Enjoy, it does the job and remember the hold feature which is handy for keeping post-experiment notes.



Oh, and another tip from the forums you can also use the potentiometer to check servo operation by plugging a servo into the esc port :)
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K2 KVM/RPM Manual download now [238kb]

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