Is one of the pots or low level and the other for high level?
I'm not absolutely sure which is which, the photos were only to show the adjusters themselves and where they are situated in the meter unit. I also haven't adjusted any of these Kiev meters, I'll try that soon when I power this meter up and see if it works first. I have five of them, I can fiddle with all of them till I get a good one out of all five.
There was a camera that I did successfully adjust the meter on, and that was a Pentax KM. After removing the top cover, the two meter adjusters were staring me in the face at the rear of the prism. I knew nothing about adjusting those either, but had a go anyway.
To start, I turned each adjuster to establish what they did. One adjuster (the left one) moved the needle quite a lot, the other moved it just a little. I guessed then that the left one was for daylight possibly, and the right one was for dull light. Stepping out into the day light, I adjusted the left one until the needle matched my good hand-held meter. Then I stepped back into the house and saw the the meter reading was off according to the hand-held meter, so I turned the right adjuster till the reading was good for dull light. Each time, the top cover must be sat back on the camera, and light blocked from getting into the viewfinder by having your eye covering it.
After that, I went back out into the daylight and found that the meter reading was very close to being spot on, even after adjusting the right one for dull light. From memory, I only went through this procedure twice to finally get fairly accurate readings in both bright and dull light ... Pheww! that KM meter was out 2 stops before I started. Now it's all good again.
To adjust the Kiev meter, I will do much the same as I did with the Pentax KM, but it will be harder because the Kiev has red lights instead of a meter needle. So after turning one adjuster slight amounts, I'll be checking to see whether I can get the first red light to come on precisely according to the accurate reading of the hand-held meter. If I can achieve that, I'll then turn the other adjuster to see what happens with that. I'll try to get back with some results. The job will be tricky because there's not a lot of room to get in and turn the adjusters, but there are holes in the adjusters for a needle to turn them.