Brand Dispensette S Bottle-Top Dispenser, Digital, 2.5-25 ml, without Recirculation Valve, DE-M, 4600350
€440.00
- Volume range 2.5 to 25 ml
- Digital counter, graduation 0.1 ml
- Accuracy 0.5 %/125 µl, coefficient of variation 0.1 %/25 µl
- without recirculation valve, simple design
- Media compatibility red, standard version
- autoclavable at 121 °C, 2 bar
- DE-M marked
Product information "Brand Dispensette S Bottle-Top Dispenser, Digital, 2.5-25 ml, without Recirculation Valve, DE-M, 4600350"
Anyone in the laboratory who repeatedly needs to prepare larger quantities of buffer wants to be able to read the volume without estimating the scale by eye. With 2.5 to 25 ml, the Dispensette S Digital covers exactly this need and shows the set value on the mechanical counter. The colour code red stands for the standard version, suitable for a wide range of acids, alkalis and solvents, but not for hydrofluoric acid, hydrochloric acid above 20 percent or nitric acid above 30 percent.
Distinction within the Dispensette S standard series
Compared with the Fix version of the same series, the Digital variant allows the volume to be chosen freely within the stated range, read from the counter rather than from a scale as with Analog. For workstations with constantly changing target volumes this is the more practical route, whereas for a single fixed value the simpler Fix version is sufficient.
Accuracy and graduation
Accuracy is 0.5 %/125 µl, the coefficient of variation figure 0.1 %/25 µl, the graduation 0.1 ml. These values apply to all volumes set within the range 2.5 to 25 ml and were determined according to the general test procedure for piston-stroke devices.
Digital counter
The digital counter allows fine, reproducible volume setting via the setting wheel. Unlike a Fix version, the volume can be chosen freely within the stated range, which saves time with changing batches in the same volume window because no second device is needed.
Without recirculation valve
This version works without a recirculation valve. The design is therefore simpler, with one less moving part in the dispensing path. For applications where every dispensed volume goes directly into the target vessel and no return is needed, this slimmer design is sufficient.
Mounting and handling
After screwing on the matching bottle adapter and shortening the telescopic filling tube to the bottle height, the next step is venting: draw in and dispense into a waste container several times until no more air bubbles are visible. The mounting key supplied is used for later valve changes.
Media compatibility
The red standard version tolerates a wide range of reagents: concentrated acids such as phosphoric acid and sulphuric acid, concentrated alkalis, salt solutions and numerous organic solvents. Excluded are hydrofluoric acid as well as hydrochloric acid above 20 %, nitric acid above 30 %, THF, trifluoroacetic acid, carbon disulphide and explosive liquids. Anyone who regularly dispenses concentrated hydrochloric or nitric acid should choose the yellow Dispensette S Organic; for hydrofluoric acid, Brand recommends the Dispensette S Trace Analysis with platinum-iridium valve spring.
Autoclavability
The complete device is autoclavable: sterilisation to DIN EN 285: 121 °C, 2 bar, holding time at least 15 minutes, followed by around 2 hours of cooling time in the closed device. This means the Dispensette S Digital can also be used where sterile conditions are required for reagent dispensing, for example with microbiological culture media.
Frequently asked questions
Can the counter be reset to zero?
Yes, the setting wheel allows any volume within the stated range to be set, and the counter shows the value currently set.
Which bottle sizes fit the Dispensette S Digital?
According to the accessories table, the adapters GL 32-33, GL 38, S 40 fit. The telescopic filling tube can be shortened to the respective bottle height.
For which work step is the volume range 2.5 to 25 ml intended?
Typical uses include reagent addition for larger sample series, the range thus covers an application window in which a smaller or larger volume of the Digital series would no longer fit.
Typical applications
- Preparing larger quantities of buffer
- Dilution series in the ml range
- Reagent addition for larger sample series
Technical details
| Line | Brand Dispensette S, Digital |
| Volume | 2.5 to 25 ml |
| Graduation | 0.1 ml |
| Accuracy | 0.5 %/125 µl |
| Coefficient of variation | 0.1 %/25 µl |
| Recirculation valve | no |
| Media compatibility | Standard version, red, not for hydrofluoric acid, hydrochloric acid above 20 percent, nitric acid above 30 percent |
| Materials of wetted parts | Borosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, platinum-iridium and PP on screw cap and bottle adapter |
| Autoclavability | Sterilisation to DIN EN 285: 121 °C, 2 bar, holding time at least 15 minutes, followed by around 2 hours of cooling time in the closed device |
| Marking | DE-M |
| Manufacturer article no. | 4600350 |
Scope of delivery
- Bottle-top dispenser for GL45 threaded bottles
- Discharge tube
- Telescopic filling tube
- Mounting key
- Bottle adapter matching the volume
- Quality certificate
- Operating manual
Individual requirements and procurement service
For additional bottle adapters, replacement valves or further volumes from the Dispensette S Digital series, LT Laborhandel provides support through its own procurement service at lt-laborhandel.com/service.
| Display type: | Digital |
|---|---|
| Operation: | mechanical |
| Recirculation valve: | without recirculation valve |
| Volume range: | 2.5 ml - 25 ml |
| Volume setting: | variable |