Rtc (Real-Time Control) Operation - Hitachi CR22N Instruction Manual

High-speed refrigerated centrifuges
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2-3-5 RTC (real-time control) Operation

This centrifuge contains an internal clock, allowing you to run the machine at a specified start or
finish time for centrifugation. This feature for running the machine at a specified time is called the
RTC (real-time control) feature. The feature saves you the trouble of calculating the delay time for
"delayed-start operation".
Explained below is how to perform an RTC operation, with an example.
e.g.) If you wish to install your rotor on the centrifuge under the run conditions listed below on the
evening of January 10 and to take out the samples around 8:00 the next morning;
(1) Rotor: R22A4
(2) RPM: 22,000 rpm
(3) Separation time: 60 minutes
(4) Acceleration mode: 9
(5) Deceleration mode: 9
22,000
4:30
In this example, you set the above run conditions (2) through (5), set the start time for RTC operation to
7:00, January 11 and start the centrifuge.
(You can make an identical setting by setting the finish time to 8:00 instead of setting the start time to
7:00.)
January 10
Fig. 2-3-5 A typical RTC Operation
2-3-5 RTC (real-time control) Operation
60 minutes
7:00
January 11
8:00
2-40
8:04

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