Pentax R-200 Series Instruction Manual page 96

Your desired points are deleted and found as described above.
After selecting desired point with arrow key, press [ENT] to view the RECT. DATA EDIT screen to edit.
You can edit data and save it.
1.PN
2.IH
3.TEMP
4.PRESS :+ 000000XX.000 m
5.ppm
31
:XXXX
:XXXX.XXX m
:+ 000000XX.000 m
:+ 000000XX.000 m