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10 turn potentiometer w/ counting dial for 22 mm hole? 3

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PaulKraemer

Electrical
Jan 13, 2012
155
Hi,
I am trying to find a potentiometer with the following specifications:

[ol]
[li]10 turn[/li]
[li]Has a "counting dial" that indicates how many full rotations it has been turned[/li]
[li]Mounts in a 22 mm diameter hole[/li]
[li]Range 100 ohm to 100k ohm[/li]
[li]Screw terminals rather than solder terminals[/li]
[/ol]

The closest I have found to what I would like is the following part from Schneider Electric ...


.. This Schneider Part can be mounted in a 22 mm hole and it has screw terminals, but it does not appear to be 10 turn and Schneider does not offer a counting dial. The counting dial I am envisioning would look something like this...

CountingDial_d2kvxc.png


... If anyone here can suggest a manufacturer that might have something like what I have described, I would greatly appreciate it.

Thanks in advance,
Paul
 
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I have never seen a precision 10T with screw terminals.
My hunch is that you will need to use a remote terminal block and solder connections to the pot.
All of the ones that I have are 0 ohms at the bottom end.
If you really need a minimum of 100 ohms you will just need to add a resistor in series.
10k and 100k should be standard ranges.
Like these:
And knobs like these

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P.E. Metallurgy, consulting work welcomed
 

There are some with the exact same photo, but they're slightly different IRL. Nothing about screw terminals; the worst case would be to solder some screw terminals on to the solder terminals.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! faq731-376 forum1529 Entire Forum list
 
Hi EdStainless and IRStuff,

Thank you for your replies. My original thought was that the machines my company builds usually have several three button or four button enclosures in which we mount 22 mm pushbuttons and selector switches. Occasionally (but far less often) when the application requires it, we mount a potentiometer in one of these enclosures. As these machines get older and our customers request upgrades or modifications, I sometimes find myself having to remove a potentiometer from a location and replacing it with a pushbutton or selector switch, or vice versa. I just thought (if it existed), a potentiometer that mounts in a 22 mm diameter hole and had screw terminals would make it very easy for me to do this in the field.

I don't always require a 10 turn precision potentiometer (sometimes single turn is fine), so in many cases I can use the Schneider part I included the link for in my original post. In the application that prompted my question, I would like 10 turns and a counting dial. Now that you have made it clear that I'm unlikely to find this with screw terminals, it's not that big of a deal. I have no problem soldering and I can make a smaller hole.

I appreciate your help. Thank you again!

Best regards,
Paul
 
Paul, you can buy standard bushings to adapt hole sizes. This is a common issue.

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P.E. Metallurgy, consulting work welcomed
 
You buy one of these:
22mm Potentiometer, Single Turn, 10k ohm

Which inside is a normal solder-to pot already soldered to. You remove the knob then purchase a standard gear-drive multi-turn counting pot-driver and install it instead of the single turn one.
Knobs & Dials 22mm 0-15 Turns CHROME 1/4"SHAFT
That's a 15 turn pot but you get the idea.

The multi-turn aspect is a bolt-on add-on made by companies that don't usually make the pots.

Keith Cress
kcress -
 
I've never found a 10 turn that fits in a 22mm or 30mm knockout. Changing the pot in a 1-turn device is the only option I've seen.
 
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