22K or 47K foot pedal for iTig 200?

I've been using my Power I-Tig 200, that I purchased back in 2014, for a while, and I'd now like to add a foot pedal. The trouble is that the manual for the welder references both a 47K pedal, and a 22K ohm pedal, depending on what page you're looking at. I know this question has been asked before, but I haven't found a thread that clearly answers what the correct value should be. Can anyone say which one is correct?

It actually used both. Many more were 22k though I think. It will depend upon when you actually bought it.

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Originally Posted by performance

It actually used both. Many more were 22k though I think. It will depend upon when you actually bought it.

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is there a way to verify? For example, based on date of manufacture of the welder? serial number?