Control And Display Elements; Control Knob; Keys And Setting Options - Hettich ROTINA 420 R Bedienungsanleitung

EN
14

Control and display elements

See figure on page 2.
Fig. 2: Display and control panel
14.1

Control knob

For setting the individual parameters.
Turning anticlockwise reduces the value. Turning clockwise increases the value.
14.2

Keys and setting options

 Running time, parameters t/hms.
TIME
h: hours. Adjustable from 1 h to 99 h, in 1 hour increments.
m: minutes. Adjustable from 1 min to 59 min, in 1 minute increments.
s: seconds. Adjustable from 1 s to 59 s, in 1 second increments.
 Continual running ""
 Set runtime timing This setting can only be made if the function "Dual time mode" is activated. See chapter
"Activate or deactivate function "Dual time mode". This function is activated ex works.
You can decide whether the runtime is timed immediately after the start of the centrifugation run or as
soon as the set speed is reached.
Timing begins at Start:
Timing begins at Speed: Runtime timing begins once the set speed has been reached.
If Timing begins at speed is set, this is shown in the display by the
 Revolution, parameters rpm.
RPM
Adjustable from 50 rpm to a maximum rotor speed of the rotor (Nmax), in increments of 10. For maximum
rotor speed, see chapter "Anhang/Appendix, Rotoren und Zubehör/Rotors and accessories".
 Relative centrifugal force, parameter RCF.
RCF
The RCF is shown in brackets  . The LED in the button lights up.
The figure that is adjustable is the figure that produces a revolution speed between 50 rpm and the
maximum rotor speed (Nmax). Adjustable in increments of 1.
 Centrifuging radius, parameters RAD.
Adjustable from 10 mm to 330 mm in 1 millimeter increments. For centrifuging radius, see chapter
"Anhang/Appendix, Rotoren und Zubehör/Rotors and accessories".
 Requesting information from integral RCF.
You can only query integral RCF if the integral RCF display is activated. See chapter "Activate or
deactivate integral RCF display".
Start-up and run-down parameters
 Run-in steps, parameters
Step 9 = shortest run-in time, ... Step 1 = longest run-in time.
 Start-up time, parameter
speed.
It is only possible to set start-up times if these have been activated. See the chapter "Activating or
deactivating start-up and run-down times".
 Braking stages, parameter
1-9 = Linear braking curve.
Step 9 = shortest run-out time, ... Step 1 = long run-out time, step 0 = non-braked run-out.
 Run-down time, parameter
set speed.
It is only possible to set run-down times if these have been activated. See the chapter "Activating or
deactivating start-up and run-down times".
 Brake switch-off revolution, parameters N Brake.
Adjustable from 50 rpm to the maximal rotor speed (Nmax) in increments of 10.
Once the rotor speed has been reached, non-braked run-out begins.
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Runtime timing begins immediately after the start of the centrifugation run.
.
. Can be set in 1-second steps. The adjustable time range depends on the set
t
.
t . Can be set in 1-second steps. The adjustable time range depends on the
icon, on the left, next to the time.