Hitachi CR22N Instruction Manual page 58

2-3-5 RTC (real-time control) Operation
NOTE
1. You cannot make an RTC setting in any of the following cases:
(1) When the Run screen is set to HOLD (continuous run)
Set the run time (centrifugation time) not to HOLD but to a numerical value.
(2) When it is past the start time
Set the start time to a time later than the current time.
(3) When the start time is more than 20 days after the current time
Set the time to a time no more than 20 days afterwards.
2. To change the run time (centrifugation time) after making an RTC setting, cancel RTC and then set a
new run time.
3. To perform a combination of a programmed operation (including a step-mode operation) with an RTC
run, call a program, then set RTC.
The system calculates the total run times of all steps of the programmed operation and calculates the
start time for RTC.
Therefore, cannot call the program after setting RTC.
4. To stop this centrifuge in RTC operation, press the STOP button. The system then stops RTC and
stops the rotor.
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