OHAUS Frontier FC5917RF Manuel D'instructions page 19

EN-10
ATTENTION:
Please also check the maximum permissible revolutions of your test tubes with the manufacturer.
3.3.2 Preselection of running time
The running time can be pre-selected in three different ranges from 10 seconds up to 99 hours 59 minutes.
1. Range from 10 seconds up to 59 minutes 50 seconds in steps of 10 seconds
2. Range from 1 hour up to 99 hours 59 minutes in steps of 1 minute.
3. The continuous run "cont", which can be interrupted by the key "Stop"(10) (refer to figure 20).
The running time can be pre-selected with the lid open or closed.
To activate the setting of the running time press the key "Time" (6).
In the display "Time/Prog" (A-3) flashes the indication "m : s" or "h : m", depending on the previous setting.
To set the desired value, use the adjusting knob (1). After exceeding 59 min 50 sec the indication changes
automatically into "h : m". After exceeding 99 hours 59 min the word "cont" appears in the display "Time/Prog"
(A-3). That continuous run can only be interrupted by pressing the key "Stop" (10). The time countdown starts as
soon as the set speed is reached.
The display always shows the remaining running time. (See figure 17)
3.3.3 Preselection of brake intensity and acceleration
This function is activated through the key "Accel/Decel" (5) (refer to figure 21).
By pressing the key once the word "accel" (M7) flashes in the display "Acc/Dec" (A-2). The desired acceleration
can be pre-selected by the adjusting knob (1). The value 0 is equivalent to the lowest and the value 9 to the highest
acceleration.
By pressing the key "Accel/Decel" (5) twice, the display "Acc/Dec" (A-2) indicates the word "decel"(M8). Now
the desired brake intensity can be pre-selected by the adjusting knob (1). The value 9 is equivalent to the shortest
and the value 0 to longest possible brake time. A value of 0 corresponds to a free run-out without an active
brake.
If the "accel/decel" button (5) is pressed three times, the term "decel" (M8) flashes in the "accel/decel" (A-2)
display field. Now the desired braking curve can be preselected with the adjustable knob (1). The code letter
"L" stands for a linear braking curve. This means that the rotor is braked evenly during the entire braking
phase. The braking curve with the code letter "A" allows a smooth braking. Its braking rate (rpm/s) is
dynamically adjusted, which means that sensitive samples are only slightly swirled during the braking phase.
This leads to a better separation result.
A-3
Figure. 20
TM
Frontier Centrifuges
1
10
6