Accessories - BRAND Dispensette S Mode D'emploi

f.

5.2 Accessories

5.2.1 Flexible discharge tube with recirculation valve
With the exception of HF, the flexible discharge tube can be used for serial dispensing (Accessories/
spare parts, p. 55).
The specified accuracy and coefficient of variation of the instrument are only obtained for volumes >
2 ml and by gently approaching the upper and lower stops. The coil of the tubing can be stretched to a
maximum length of 800 mm. Before use, the tube must lie in regular loops and must not be twisted.
The operating exclusions for the respective instrument in use apply.
Assembly
Use only undamaged tubing
There should be no visible damage to the discharge tube (e.g. kinks, etc.). Each time you
are going to use the tubing, examine it carefully.
> To dispense aggressive liquids, you should take safety measures in addition to the
normal precautions. We recommend use of a protective shield.
> The bottle must be supported using a bottle stand.
> To help avoid reagent splashing from the tube, always grip the tube firmly by the
handle and replace into the holder after use.
> For cleaning rinse the tube carefully.
> Do not dismantle!
Unsuitable for hydrofluoric acid (HF)
The flexible discharge tube must never be used to dispense HF (hydrofluoric acid)!
Checking for the correct valve marking
Always take note of the valve marking! (See Replacing the discharge valve, p. 51).
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e.
Wipe off the discharge tube against the inner wall of the
receiving vessel.
f.
Seal the dispensing tube with the screw cap.
After using the piston, always press it down to the lower stop
(parking position). If the piston is not pressed down to the
lower stop, unintentional media leaks may occur.
The filled status of the instrument must be specially marked
during cleaning.
WARNING
NOTICE
NOTICE
Operating manual
5 Operation
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