Brandtech's Dispensette S Organic fixed volume bottletop dispensers are available with either 5ml and 10ml fixed dispense volumes, and are ideal for organic solvents, including combinatorial chemistry solvents, concentrated acids such as HCl and HNO3, trifluoroacetic acid (TFA), tetrahydrofuran (THF), and peroxides. 

Dispensette S Product Line

Applications

• Improve speed and accuracy for routine chemical handling,  

• Eliminates hazardous manual tasks like pouring, dispensing and transferring dangerous chemicals to improve safety in working with highly aggressive chemicals, fuming acids and highly alkaline solutions,

• Reduced waste of solutions which tend to crystallize in storage bottles.

• Filling reagent tubes or small glass vessels for microbiology, 

• Maintains sterility of liquids, especially in microbiology or cell culture applications in a biosafety cabinet, which can require a quick withdraw, dispense and reseal of the medium bottle after each use,

• Reduce danger of spillage within biosafety or chemical safety cabinets.  

Features

• Fixed volume dispensers deliver accurate, precise volumes every time, making them ideal for standardized applications,

• Calibration adjustments are simple with included tool,

• The "floating piston" design of the Dispensette S forms a zero-wear sealing system by using a thin film of the dispensed liquid, a few µm thick, to act as a non-wearing seal while reducing friction. This provides a smooth, easy and convenient cartridge slide which resists wear and damage, simplifies cleaning and maintenance, and provides a lifetime of reliable dispensing. 

• Smooth dispense action makes one-handed operation safe and simple, even with a nearly-empty reagent bottle,

• Easy to calibrate and adjust in order to comply with ISO 9001 and GLP guidelines using simple tool included with dispenser,

• Simple to mount discharge tube available with or without integrated recirculation valve,

• Replaceable discharge valve with safety valve,

• Olive-shaped filling valve for firmer attachment of filling tubes,

• The valve design eliminates seals and is replaceable for simple, economical service and trouble-free operation,

• A telescoping filling tube adjusts to different bottle sizes, with no measuring or cutting required,

• Valve block rotates 360° so that the bottle label always faces the user for safety,

• Improved flow technology results in faster priming,

• Easy to disassemble for cleaning or full replacement of the dispensing cartridge,

• Bottletop dispensers increase laboratory safety by mounting reagent bottles to minimize manually poured reagent transfers and reduce the risk of injury from inadvertent dispensing and splashes. 

• An extensive line of accessories facilitates specialized dispensing tasks like sterile applications or dispensing from large containers.

Specifications

• Use between +15°C and +40°C (instrument and reagent)

• Vapor pressure up to max. 600 mbar (Aspirate slowly above 300 mbar, in order to prevent the liquid from boiling)

• Max. kinematic viscosity:  500 mm²/s

• Max. dynamic viscosity [mPas] =kinematic viscosity [mm²/s] x density [g/cm³])

• Max . density: 2.2g/cm³,

• Autoclavable at 121°C for use with sterile reagents. 

• Accuracy and CV test parameters:  

• Delivered nominal volume of distilled water,

• Instrument and distilled water at temperature equilibrium, 

• Ambient temperature (20°C/68°F)

• Perform a smooth operation.

• Calibration mechanism includes a visible flag to automatically indicate when calibration has been adjusted from factory specifications.  

• Dispensette® S Organic package includes:

• Certificate of performance

• Discharge tube

• Valve mounting/calibration tool

• Operating manual

• One-year warranty

• Adapters and filling tube 

• Filling tube length, mm:  125-240, 

• Adapters:  Standard GL45mm thread, plus included adapters, for bottle thread (mm): 24, 28, 33, 38, S40* to fit most common lab bottles, 

• Operating exclusions - Never use with the following:  

• Bases and saline solutions

• Liquids which attack Al2O3 sapphire or fluoroplastics (ETFE, FEP, PFA, PCTFE, PTFA and PTFE)

• Dissolved sodium azide permitted up to a maximum concentration of 0.1%,

• Liquids which attack borosilicate glass (e.g., hydrofluoric acid)

• Explosive liquids (e.g., carbon disulfide)

• Liquids attacking PP (screw cap)

• Suspensions as solid particles (e.g., of charcoal) may clog or damage the instrument,

• Liquids which form deposits may make the piston difficult to move or may cause jamming (e.g., crystallizing solutions or concentrated alkaline solutions), 

• When dispensing inflammable media, make sure to avoid the buildup of static charge, (e.g., do not dispense into plastic vessels; do not wipe instruments with a dry cloth).

• Designed for general laboratory applications and complies with the relevant standards, e.g., DIN EN ISO 8655. Compatibility of the instrument for a specific application (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.

Optional Accessories

• Flexible discharge tubes for Dispensette S, part number BT 708132, 

• Dispensing Cartridge/Dosing Element:  If the piston seal is worn after a long period of use, the entire dispensing cartridge can easily be replaced without tools by the user. The cartridge is fully adjusted at the factory and delivered with a performance certificate and factory calibration, part number BT 708035, 

• Remote Dispensing System (dispenser not included), part number BT 704261, 

• Miscellaneous accessories for sterile applications, remote, serial, and dispensing from large containers (drums) dispensing. 

• Contact LabGear USA at 800-229-6509 for more details.

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