Description
Bottle-top minispensor 250+500 µl is a fixed-volume bottle-top dispenser with two preset volumes of 250 µl and 500 µl for precise laboratory liquid handling. Finished in red for rapid visual identification, this high-quality precision instrument delivers accuracy of ±5 µl and a deviation of ±1 µl, with error limits better than the requirements of ISO 8655. Made in Germany by Witeg, it is an economical alternative to microlitre pipettes because disposable tips are not required. The universal dispenser resists most chemicals and employs a direct-displacement dosing system that is ideal for crystallising liquids. Volume selection is straightforward via the two fixed settings on each unit. A cannula rotatable through 180° provides fully drip-free dispensing, while automatic refilling enables convenient one-hand operation. The instrument is easy to clean and fully autoclavable at 121 °C, and carries DE-M marking in accordance with the German Weights and Measures Act. Scope of delivery comprises the minispensor, GL28/GL32 thread adapter, 100 ml reservoir bottle, operating instructions and an individual certificate.
This article is part of Bottle-top dispensers, in Liquid handling.
Key features
- Pack size: 1 pc
- Volumes: 250 µl and 500 µl
- Colour: red
- Accuracy: ±5 µl
- Deviation: ±1 µl
- Autoclavable: 121 °C
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Questions about Bottletop-Minispensor 250+500µl
What is this article?
Bottletop-Minispensor 250+500µl is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Bottle-top dispensers, inside Liquid handling, in Lab instruments.
A bottle-top dispenser meters a reagent directly from the bottle it is mounted on, by a piston. The volume range and the chemical compatibility of the wetted parts, glass, ceramic, PTFE, are the specification. It is for the same reagent again and again, not for changing liquids every sample.
A piston pipette delivers a set volume of liquid by air displacement or, for viscous and volatile liquids, by positive displacement. A single channel is the ordinary tool. A multichannel repeats the same volume across a row of a plate. A bottle-top dispenser meters reagent from the bottle it sits on. The accuracy is a property of the pipette and of how it is used, which is why calibration and a certificate exist. Piston-operated apparatus is treated under ISO laboratory apparatus. The volume unit sits with the BIPM and NIST.
Which category should I open next?
The category is Liquid handling. The sub-category is Bottle-top dispensers. The catalogue is Lab instruments.
Shelves beside this one are Pipette stands, calibration & accessories, Single-channel pipettes, Multichannel pipettes and Electronic pipettes.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.