BRAND Dispensette S Instrucciones De Manejo página 52

2 Safety Instructions
2.3 Limitations of Use
This instrument is designed for dispensing liquids, observing the following physical limits:
•
Operating 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 liq-
uid from boiling
•
Kinematic viscosity up to 500 mm
density [g/cm
•
Density up to 2.2 g/cm
2.4 Operating Limitations
•
Liquids that form deposits (e.g., crystallizing solutions or concentrated alkaline solutions) may
make the piston difficult to move or may cause jamming. If the piston movement becomes slug-
gish or stiff, the instrument should be cleaned immediately. See also Cleaning, p. 70.
•
When dispensing inflammable media, make sure to avoid to buildup of static charge (e.g., do not
dispense into plastic vessels; do not wipe instruments with a dry cloth).
•
The instrument is designed for general laboratory applications and complies with the require-
ments of the relevant standards (e.g., DIN EN ISO 8655). Compatibility of the instrument for a
specific application (e.g., trace material analysis or food sector) must be checked by the user. Ap-
provals for specific applications (e.g., for the production and administration of food, pharmaceu-
ticals, or cosmetics) have not been given.
2.5 Operating Exclusions
2.5.1 Dispensette S
Never use Dispensette® S for:
•
Liquids that attack Al
FEP, PFA, and PTFE (e.g., dissolved sodium
azide*)
•
Liquids that attack borosilicate glass (e.g.,
hydrofluoric acid)
•
Liquids that are decomposed catalytically
by platinum-iridium (e.g., H
•
Hydrochloric acid > 20% and nitric acid >
30%
•
Tetrahydrofuran
•
Trifluoroacetic acid
* Dissolved sodium azide permitted up to a concentration of max. 0.1 %.
** Alternatively, ETFE/PTFE bottle adapters and ETFE/PTFE screw caps can be used (accessories from
Accessories/spare parts, p. 82). The suitability of ETFE/PTFE bottle adapters and ETFE/PTFE screw
caps must be checked by the user.
2.5.2 Dispensette S Organic
Never use Dispensette® S Organic for:
52
Operating manual
2
/s (dynamic viscosity [mPas] = kinematic viscosity [mm
3
])
3
-O -ceramic, ETFE,
2 3
O )
2 2
•
Explosive liquids
•
Carbon disulfide
•
Suspensions (e.g., activated charcoal) be-
cause solid particles may clog or damage
the instrument
•
Liquids that tend to polymerize sponta-
neously (e.g., adhesives and their compo-
nents)
•
Liquids that attack PP (screw cap and bottle
adapter)**.
2
/s] x
997490