BrandTech Scientific Dispensette III - Manual (Page 51)

S
R
b
d
d'
1
English
51
Autoclaving
R = seal S = elastic O-ring
Note:
This instrument is autoclavable at 121 °C (250 °F), 2 bar absolute (30 psi) with a holding time of at least
15 minutes according to DIN EN 285.
1.
Prior to the first autoclaving
2.
Preparation for autoclaving
Remove built-in inelastic PTFE-sealing ring (R) and replace with the
supplied elastic sealing ring made of FKM (S).
Do not reassemble the instrument until it has cooled down to room
temperature (Cooling time approx. 2 hours).
After every autoclaving, inspect all parts for deformities or dam-
age. If necessary, replace them.
It is the user's responsibility to ensure effective autoclaving.
Note:
FKM has limited chemical resistance!
a) Before autoclaving, the instrument must be cleaned carefully
(page 48-50). Lift the piston completely out of the cylinder
(page 49). For autoclaving with mounted filling tube, the filling
valve with olive-shaped nozzle is recommended (page 55).
b) Loosen screw connections (Fig. b).
c) Pull out the recirculation tube and the telescoping filling tube.
d) Check that the filling valve is securely seated (Fig. d). If the
rigid PFTE ring has been installed, the filling valve must also be
loosened.
In the digital model, also check that the piston mount is se-
curely seated (Fig. d’).
e) Autoclave the instrument with the piston pushed all the way
downward. Avoid contact with metallic surfaces. The mounting
tool can also be autoclaved.