User Manual SuperVarioN
Page 7 of 15 Issue dd. 28.07.2004
4. Informations about using
Following some questions and answers that may occur.:
- How to charge head A?
Head A has 36 places. When using butyrometers of measuring method
(1 stopper) all 36 positions can take a butyrometer. When centrifuging
butyrometers of weighing method (2 stoppers) or Babcock bottles max.
18 positions can be used (every second one).
- What is happening when centrifuge starts and brakes?
The centrifuge need approx. 30 sec. for reaching 600 rpm and up to 70
sec. for reaching 1100 rpm with head A fully loaded. Due to
construction a higher speed than the set one is not possible - neither
when starting nor when centrifuging.
The brake is electrically activated and therefore smooth and nearly
shock-free.
- How is the heating acting?
The heating is only active at a desired speed of 1000 rpm and above
regardless whether centrifuge stops or is running. At the beginning at
least 30 minutes are necessary for reaching 65 °C.
Notice! During standby the centrifuge reduces the heating to avoid local
overheat. The amount of reduction is 10 °C.
- How to open centrifuge at failure of current supply?
On the bottom side of the front part there is a black cap. In case of
emergency loosen this cap by a sturdy screw driver and pull the cord
fastened inside.
Attention! This should be done only in case of emergency. The cap is
mostly destroyed after it and has to be exchanged. Using the centrifuge
User Manual SuperVarioN
Page 8 of 15 Issue dd. 28.07.2004
with cord lying open is forbidden.
- Why is the last decimal point of temperature lighting
sometimes?
This lighting point indicates that heating is actually activated.
- Centrifuge does not correspond to key START. What may be
the reason?
The lid locking is not wholly catched. Press again. The catching can be
heard. When the centrifuge is braking no key can be used. This is a
fact.
Further, the centrifuge cannot be started while setup is in process.
(please see point 2.2.1).
- After start centrifuge brakes immediately. What may be the
reason?
The centrifuge is not placed horizontally or is unbalanced. This can be
tested by holding the tommy screw and moving the freely mounted
motor slightly into all directions. There should be a space of 3 to 5 mm.
- Are there fuses and are they exchangeable?
Yes, the centrifuge has one (from 2/95 two) main fuse (6,3 ampere,
delay action) and a fuse for the electronics (0,16 ampere, medium delay
action). Both fuses are mounted on the print board in the lower part of
the centriuge.
In order to exchange the fuses the centrifuge is to be disconnected
from the mains and to be put gently on its side. Then the base plate
can be screwed off (6 screws). Now the fuses are accessible.
- While setting the centrifuge sometimes only points are
visible. What is the meaning of that?
When the centrifuge features are to be set up and one of the keys
