Velp Scientifica OV 725 Digital Manual De Instrucciones página 10

5. Dispersing tools
Insertion of the dispersing tool into the disperser
Unscrew the knob (B) until its head is no more visible through the hole. Slide the dispersing tool from the bottom into the
disperser, up to the stop. The dispersing tool enters with an audible click if you insert it with enough force. It's fitted correctly
when the notch on the dispersing tool is aligned with the bottom of the disperser.
Now fix the dispersing tool by tightening the knob (B).
If the dispersing tool is not inserted into disperser and the control knob is pressed to start the dispersion, the display shows
" " and the unit does not start.
" "
Note: before turning on the unit, make sure that the dispersing tool is inserted in the liquid and that the receptacle is well
fixed with the vessel holder with safety belt (D).
ABBREVIATIONS
All D20 series tools are allowed (it means with a 20mm diameter head).
Material: stainless steel AISI 316L.
Head of disperser:
D20 For drive unit with a head of 20mm as diameter
Diameter and type of stator:
S20C Coarse stator diam. 20 mm
S20F Fine stator diam. 20 mm
S25C Coarse stator diam. 25 mm
S25F Fine stator diam. 25 mm
S40C Coarse stator diam. 40 mm
Type of gasket:
P PTFE
Diameter and type of rotor:
R20S Standard rotor diam. 20 mm
R20C Caorse rotor diam. 20 mm
R20E Emulsifying rotor diam. 20 mm
R20M Mixing rotor diam. 20 mm
R25C Caorse rotor diam. 25 mm
R25E Emulsifying rotor diam. 25 mm
R25M Mixing rotor diam. 25 mm
Example of dispersing tool configuration
D20-S20C-P-R20S Velp code: A00000478
AVAILABLE DISPERSING TOOLS
See all dispersing tools (accessories) in Chapter 9 or go to www.velp.com.
Use only the original Velp Scientifica dispersing tools after reading their instruction manual with more information about
applications and technical data.
TO OBTAIN BETTER RESULTS
Diameter of the receptacle with the sample
It is better to disperse using a container slightly larger than the dispersing tool in order to obtain a faster and more
homogeneous solution.
(only for mixtures up to 20.000 rpm)
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