BrandTech Dispensette S Bottletop Dispenser - Fixed Volume with Standard Valve

Dispense most lab reagents: Choose the Dispensette® S for acids, bases, saline solutions, as well as many organic solvents.

Proven accurate and durable: Uses a floating piston design with no seals to wear or replace, minimizing service downtime.

Increase laboratory safety: Dispensers mount on reagent bottles to reduce poured reagent transfers. They include a number of safety features to reduce the risk of injury from inadvertent dispensing and splashes. Many accessories are available for remote, serial and drum dispensing.

Resist wear and damage: Unique design ensures smooth operation and eliminates wearing parts. Dispensers disassemble easily to simplify cleaning and maintenance. The new system eliminates seals for a lifetime of reliable dispensing.

Features:

• Fixed-volume for standardized applications
• The Dispensette® S is constructed using the "floating piston" principle that matched with precise tolerances to the cylinder of the instrument. A thin film of the dispensed liquid of just a few µm thick acts as a non-wearing seal that reduces friction, so dispensing is easy and convenient.
• The GL45mm standard thread, plus included adapters, fit most common lab bottles
• The valve block can be rotated 360° so that the bottle label always faces the user for safety
• A telescoping filling tube adjusts to different bottle sizes
• The instrument is easy to disassemble for cleaning
• Valves are replaceable for simple, economical service
• New valve design eliminates seals for trouble-free operation
• Olive-shaped filling valve for firmer attachment of filling tubes
• Autoclavable at 121ºC (250ºF) for use with sterile reagents
• Easy to calibrate and adjust in order to comply with ISO 9001 and GLP guidelines with included tool
• A positive indicator automatically indicates adjustment from factory settings
• An extensive line of accessories facilitates specialized dispensing tasks like sterile applications or dispensing from large containers

Dispensette S Bottletop Dispensers with Standard Valve are supplied with a Valve Mounting/Calibration Tool, Telescoping Filling Tube, Discharge Tube, Polypropylene Adapters, Operating manual, One-year warranty, and Certificate of performance.

Limitations of Use: This instrument is intended for the pipetting of liquids within the following limitations:

• Use between +15°C and +40°C (59°F and 104°F) of instrument and reagent
• Density up to 2.2 g/cm³
• Vapor pressure up to max. 600 mbar; aspirate slowly above 300mbar in order to prevent the liquid from boiling
• Kinematic viscosity up to 500 mm²/s (dynamic viscosity [mPas] = kinematic viscosity [mm²/s] x density [b/cm³])

Operating Exclusions: Never use this instrument with:

• Liquids attacking PP (screw cap), Al2O3-ceramic, ETFE, FEP, PFA and PTFE (e.g., dissolved sodium azide*)
• Liquids attacking borosilicate glass (e.g., hydrofluoric acid)
• Liquids which are decomposed catalytically by platinum-iridium (e.g., H2O2)
• Hydrochloric acid > 20% and nitric acid > 30%
• Tetrahydrofuran
• 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 max. concentration of 0.1%

*The value of Accuracy (A) and Coefficient of Variation (CV) are final test values referring to the delivered nominal volume, instrument and distilled water at equilibrium with ambient temperature (20°C/68°F) and with smooth operation.