Hettich 4701 - Page 19

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Rev.: 05 / 11.2023
AB4701en_SA
Device overview
Fig. 10: [Mains switch]
Fig. 11: [Ramp-up and ramp-
down parameters] button
Fig. 12: [Cooling] button
Fig. 13: [PROG] button
Fig. 14: [RCF] button
■ Switch the device on and off.
■ Ramp-up levels, parameters
Level9=shortest ramp-up time, Level1=longest ramp-up time.
■
Ramp-up time, parameters
Adjustable in 1second increments.
■ Brake levels, parameters
1-9=Linear braking curve
Level9=shortest ramp-down time, ...Level1=long ramp-down time,
Level0=unbraked ramp-down.
■ Ramp-down time, parameters
Adjustable in 1second increments.
■
Brake cut-off speed, parameter NBrake
Adjustable from 50RPM to the maximum rotor speed (N
max
), in incre-
ments of 10. Unbraked ramp-down takes place after reaching this
speed.
■
Start centrifugation run to pre-cool the rotor (only for devices with
cooling).
■
Centrifugation run, for pre-cooling of the rotor, takes place automatically
with the PREC program (PRECOOLING).
■
Retrieve programs and program links, parameter RCL (Recall).
Programs: Program locations 1to99. Program links: Program locations
AtoZ.
■
Save programs and program links, parameter STO (Store).
99programs can be stored (program locations 1to99).
Program location0 serves as a buffer for the centrifugation data of
the last centrifugation run. No programs can be stored in this program
location.
25program links can be stored (program locations AtoZ, program
location J does not exist). A program link can consist of 20 programs.
■
Link programs, parameter EDIT.
■
Open the ‘Machine Menu’ .
■ Scroll forward in the menus.
■ Relative centrifugal force, parameter RCF.
The RCF is displayed in brackets ñá.
A numerical value can be set that gives a speed between 50RPM and
the maximum rotor speed (Nmax).
Adjustable in 1 second increments.
■ Centrifuging radius, parameter RAD.
Adjustable from 10mm to 330mm, in 1millimetre increments.
■ Querying the integral RCF.
The integral RCF can only be queried if the integral RCF indicator is
enabled.
■ Switch to RCF value.