I have found Fluke PM6306 RCL calibration command.
I decompiled the FW (PM6306_LCR_Meter_EPROM_v1.5.zip) , so I found Fluke PM6306 RCL calibration command.

Operation method (RS-232 interface):
step 1 : input HEX 1B 32 0A (ESC 2), go to remote control

step 2 : input command CAL 1(HEX: 43 41 4C 20 31 0A). format CAL number




Now, I have decompiled FW only a little. I look forward to decompile it together.