
SAFE WORKING CONDITIONS
17
4.9 Maximum load
In order to avoid overloading of the rotor the operator shall observe the maximum
permitted load, which is specified on every rotor. Maximum permissible load is
reached when all test-tubes are filled with the fluid with 1.2 g/cm
3
density or less.
If density of the centrifuged liquid is higher than 1.2 g/cm
3
, then test tubes can only
be filled partially. Alternatively the operator can adjust the speed of the centrifuge by
using the following formula.
n perm = n max *
;
g
= specific gravity
; n max
[maximum rotational
speed – r.p.m.]
4.10 Storage
If your Kestrel is stored away for more than 12 months, we recommend that the
centrifuge be inspected by an authorised engineer before use.
g
2
,
1
úû
ù
êë
é
3
cm
G