Jon,
I believe you are correct. The latest version/revision of the CK25/30 manual (courtesy of KJ) states:
<font color="blue">1.The hour-meter indicates, in five digits, the hours that the tractor has been operated.
Records the hour, and portions of the hours that the tractor has been operated while the engine is running. Its operation is not based on engine RPM, but is electrically determined.
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big tractor...... here's what the Kioti website states for the 1000 rpm PTO:
<font color="blue"> Power Take-Off
Rear PTO Speeds(1st) 540 rpm
Rear PTO Speeds(2nd) 1000 rpm - Optional
Mid PTO Speeds 2000 rpm - Optional
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Don