BrandTech Dispensette S Trace Analysis Instrucciones De Manejo página 29

Limitations of Use
This instrument is designed for dispensing liquids,
observing the following physical limits:
– use temperature from +15 °C to +40 °C (from
59 °F to 104 °F) of instrument and reagent
– vapor pressure up to max. 600 mbar. Aspirate
slowly above 300 mbar, in order to prevent the
liquid from boiling.
– kinematic viscosity up to 500 mm
(dynamic viscosity [mPas] =
kinematic viscosity [mm²/s] x density [g/cm³])
– Density: up to 3.8 g/cm
Operating Exclusions
Dispensette S Trace Analysis must never be
®
used with:
– liquids attacking Al O
2
like ETFE, FEP, PFA, PCTFA
and PTFE (e.g., dissolved sodium azide*)
– liquids which are decomposed catalytically
by platinum-iridium (e.g., H
Depending on the construction of the instrument.
Take notice of the valve spring material of the
instrument version in use.
– organic solvents
– trifluoroacetic acid
– explosive liquids (e.g., carbon disulfide)
– suspensions (e.g., of charcoal) as solid particles
may clog or damage the instrument
* Dissolved sodium azide permitted up to a
concentration of max. 0.1%.
Functions and Limitations of Use
/s
2
3
sapphire or fluoroplastics
3
O ) or tantalum.
2 2
Operating Limitations
Liquids, which form deposits may accelerate wear
on the piston seal, and make the piston difficult
to move or may cause jamming (e.g., crystallizing
solutions or concentrated alkaline solutions). If the
piston becomes difficult to move, the instrument
should be cleaned immediately (see page 41).
The Dispensette S Trace Analysis is designed for
®
general laboratory applications and complies with
the relevant standards, e.g. DIN EN ISO 8655.
Compatibility of the instrument for a specific applica-
tion (e.g., trace material analysis, food sector etc.)
must be checked by the user. Approvals for specific
applications, e.g. for production and administration
of food, pharmaceuticals and cosmetics are not
available.
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