Originally posted by Canada_Rockies I suggest you use a cable release instead.
The K-r only supports an IR release.
Although you can use darn near any kind of release if you modify the IR remote:
https://www.pentaxforums.com/forums/do-yourself/186110-make-wired-release-any...ir-camera.html
But I digress from the OP's original question ... I've not tried using CIF with the remote. I would guess though that Pentax didn't want to let the batteries go flat because the photographer forgot to turn things off when done. It may not be possible to use your K-r in the manner you describe. BUT, if you rigged a motion detection switch to the above DIY project, the shutter wouldn't be tripped in the first place until something was in range.
Hmmm, not that I have time right now, but you've got me thinking about something I could play with this winter as the snow piles up outside.