Thermo Scientific RC 3BP Plus, Instruction Manual

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5
Advanced Features
Advanced Features
Thermo Scientific Sorvall RC 3BP Plus 5-5
• The profiles are numbered for ease of selection, with number 1 being the slowest, most gradual
rate, and each successive rate being incrementally faster up to number 10.
•
After SLOW START selections are completed, SELECT SLOW STOP? will appear in the set display.
SLOW STOP
• SLOW STOP chooses gentle deceleration from 500 to 0 rpm. SLOW STOP offers ten different
acceleration rates.
•
The profiles are numbered for ease of selection, with number 1 being the slowest, most gradual
rate, and each successive rate being incrementally faster up to number 10.
• Selection of BRAKE OFF will have an affect on SLOW STOP (see the NOTE under BRAKE
OFF).
BRAKE OFF
•
BRAKE OFF deactivates normal deceleration braking for a coasting stop from any specified speed
(in rpm).
•
The time it takes for the rotor to stop, depends on the transition speed, windage and inertia of the
rotor.
•
BRAKE OFF transition speed is set independently of set run speed, and is not affected by change
to set run speed. If the transition speed is set higher than the set run speed, at run termination, the
centrifuge will coast to a stop from set speed.
•
After BRAKE OFF selections are completed, CHANGE OVERTEMPERATURE LIMIT? will appear in
the set display.
CHANGE OVERTEMPERATURE LIMIT
•
CHANGE OVERTEMPERATURE LIMIT allows changing the maximum allowable sample
temperature to establish a new overtemperature offset value.
• The centrifuge calculates the difference between the set and the maximum temperatures. This
value is used as an offset to apply to future runs, until it is changed. The retained offset will apply
to any normal (manual entry) run.
Note If SLOW STOP and BRAKE OFF are both selected:
•
If the BRAKE OFF transition speed is set to 500 rpm or higher, the SLOW STOP selection
will be ignored.
• If the BRAKE OFF transition speed is set below 500 rpm, the centrifuge will decelerate with
full braking to 500, transition to the specified SLOW STOP rate, then change to a coasting
stop when the specified BRAKE OFF transition speed is reached.