Brand Dispensette S Bottle-Top Dispenser, Digital, 5-50 ml, without Recirculation Valve, DE-M, 4600360
€475.00
- Volume range 5 to 50 ml
- Digital counter, graduation 0.2 ml
- Accuracy 0.5 %/250 µl, coefficient of variation 0.1 %/50 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, 5-50 ml, without Recirculation Valve, DE-M, 4600360"
Anyone in the laboratory who repeatedly needs media portioning in the microbiology laboratory wants to be able to read the volume without estimating the scale by eye. With 5 to 50 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.
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
The bottle adapter from the scope of delivery is screwed onto the stock bottle, and the telescopic filling tube can be shortened to the bottle height. Before first use, the device is drawn up and dispensed into a waste container several times until the system is free of air bubbles. The mounting key is needed later when changing the valve or discharge tube.
Media compatibility
Suitable for aggressive reagents, concentrated alkalis and acids such as phosphoric acid or sulphuric acid, salt solutions and many organic solvents. Not suitable for hydrofluoric acid, hydrochloric acid above 20 %, nitric acid above 30 %, THF, trifluoroacetic acid, carbon disulphide and explosive liquids. The yellow Dispensette S Organic is intended for concentrated hydrochloric and nitric acid, THF and trifluoroacetic acid; for hydrofluoric acid, Brand recommends the Dispensette S Trace Analysis with platinum-iridium valve spring.
Autoclavability
The complete device is autoclavable: steam sterilisation at 121 °C and 2 bar overpressure for at least 15 minutes to DIN EN 285, followed by about 2 hours of cooling time in the closed autoclave. This means the Dispensette S Digital can also be used where sterile conditions are required for reagent dispensing, for example with microbiological culture media.
Distinction within the Dispensette S standard series
Within the Dispensette S standard series, Digital, Analog and Fix differ mainly in volume setting. Digital shows the set volume on the mechanical counter and is suitable when different values are often needed within the range. Analog achieves the same accuracy via a scale on the cylinder without a counter. Fix dispenses only a single, factory-adjusted volume and thus rules out accidental changes. Anyone who constantly needs the same volume range and no variation gets by more cheaply and with simpler handling with a Fix version.
Accuracy and graduation
Accuracy is 0.5 %/250 µl, the coefficient of variation figure 0.1 %/50 µl, the graduation 0.2 ml. These values apply to all volumes set within the range 5 to 50 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.
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 5 to 50 ml intended?
Typical uses include the preparation of culture solutions and buffers in larger batches, the range thus covers an application window in which a smaller or larger volume of the Digital series would no longer fit.
Typical applications
- Media portioning in the microbiology laboratory
- Filling larger quantities of reagent
- Preparing culture solutions and buffers in larger batches
Technical details
| Line | Brand Dispensette S, Digital |
| Volume | 5 to 50 ml |
| Graduation | 0.2 ml |
| Accuracy | 0.5 %/250 µl |
| Coefficient of variation | 0.1 %/50 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 | steam sterilisation at 121 °C and 2 bar overpressure for at least 15 minutes to DIN EN 285, followed by about 2 hours of cooling time in the closed autoclave |
| Marking | DE-M |
| Manufacturer article no. | 4600360 |
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: | 5 ml - 50 ml |
| Volume setting: | variable |