BRAND Titrette Instrucciones De Manejo página 51

2.2.1 Operation
When the instrument is correctly used, the dispensed liquid comes into contact with only the follow-
ing chemically resistant materials:
Borosilicate glass, AI O
2
comes equipped with a recirculation valve.
2.3 Limitations of Use
This instrument is intended for titrating liquids within the following physical limitations:
•
operating temperature from +15 °C to +40 °C (from 59 °F to 104 °F) of instrument and reagent
•
vapor pressure up to 500 mbar
•
viscosity up to 500 mm
•
altitude: max. 3,000 m above sea level
•
relative humidity: 20 % to 90%
2.4 Operating Limitations
•
Chlorinated and fluorinated hydrocarbons or chemical combinations which form deposits may
make the piston difficult to move or may cause jamming.
•
When working with crystallizing media, follow the cleaning instructions (see Cleaning).
•
Compatibility of the instrument for the intended application (e.g., trace analysis) must be care-
fully checked by the user. Contact the manufacturer, if necessary.
2.5 Operating Exclusions
2.5.1 Titrette
Never use the instrument for:
•
liquids that attack borosilicate glass, Al
drofluoric acid).
•
suspensions (e.g., of charcoal), as solid particles may clog or damage the instrument.
•
concentrated acids and bases as well as nonpolar solvents that have a strong swelling effect on
plastics (e.g., toluene, benzene).
•
carbon disulfide, as this media is highly flammable.
•
Autoclaving the instrument is not permitted!
•
The instrument must never be exposed to an aggressive atmosphere (e.g., HCl fumes).
2.6 Battery specifications
2 micro-batteries, 1.5 V (AAA/UM4/LR03), not rechargeable!
997469
, ETFE, PFA, FEP, PTFE, platinum-iridium, PP (screw cap). The instrument
3
2
/s
O
2
, ETFE, PFA, FEP, PTFE or platinum-iridium (e.g., hy-
3
2 Safety Instructions
51
Operating manual