BRAND Dispensette S Instrucciones De Manejo página 53

4.2 Priming
Follow during every use, especially with hazardous media
> Wear protective clothing, eye protection and appropriate hand protection!
> Never press down the piston when the screw cap is screwed on!
> Avoid splashing the reagent!
> To avoid splashes dispense slowly.
> Liquid may accumulate in the screw cap. Open the screw cap slowly in order to pre-
vent splashing.
> Follow all safety instructions and comply with the operating exclusions and limita-
tions of use; see Limitations of use, p. 46 and Operating exclusions, p. 46.
Before using the instrument for the first time, ensure it is rinsed carefully and discard the first few
samples dispensed. To avoid splashes dispense slowly. Carry out cleaning for trace analysis, depend-
ing on requirements (Cleaning for trace analysis, p. 66).
Instruments with recirculation valve
a.
b.
c.
d.
997491
WARNING
NOTICE
a.
Open the screw cap of the dispensing tube. To avoid
splashes, hold the discharge tube orifice on the inner
wall of a suitable receiving vessel.
b.
Turn valve to 'Recirculate'.
c.
For deaeratinggently pull up the piston approx. 30 mm
and push it down rapidly until the lower stop. Repeat
30 mm
this process at least 5 times.
d.
Turn valve to 'Dispense'.
4 Assembly
53
Operating manual