LAMBDA Dávkovač

LAMBDA Dávkovač

Unikátní pumpa pro sypké pevné látky

  • Umožňuje automatické nebo kontinuální dávkování pevných, práškových a krystalických látek bez lžičky.
  • Nezbytné pro dodržení požadavků "Správná laboratorní praxe" (GLP) a bezpečnostních standardů
  • Snadné sestavení.
  • Hermetická konstrukce umožňuje práci v ochranné atmosféře (Ar, N2,…).
  • Bezpečná manipulace s toxickými látkami.
  • Patentováno.
  • Programovatelné.
  • Řízení z PC (volitelně).
Typ: LAMBDA DOSER / HI-DOSER – microprocessor-controlled programmable powder dosing instrument
Programování: DOSER: up to 27 steps of speed and time; HI-DOSER: up to 99 steps of speed and time
Časové rozlišení: 0 to 999 minutes in 1 minute steps or 0 to 99.9 minutes in 0.1 minute steps: time resolution can be selected individually for each program step
Motor: DOSER: microprocessor controlled stepping motor; HI-DOSER: microprocessor controlled brushless long life BLDC motor with neodymium magnets
Rozsah rychlosti dávkování: 0 to 999
Rozhraní: RS-485 (optional) or RS-232 (optional)
Zdroj: DOSER: 95–240 V/50–60 Hz AC plug-in power supply with DC 12V/12W output; HI-DOSER: 95–240 V/50–60 Hz AC plug-in power supply with DC 12V/50W output; possible field operation on 12 V accumulator
Objem: Approx. 0.2 L, 1 L and 3 L glass vessels
Rozměry: DOSER motor unit: 6 (H) x 7 (W) x 13 (D) cm; HI-DOSER motor unit: 10.5 (W) x 9.5 (H) x 13 (D) cm; Glass vessel approx. 0.2 L: 30 (H) x12 (W) x 5 (D) cm; Glass vessel approx. 1 L: 30 (H) x 18 (W) x 14 (D) cm; Glass vessel approx. 3 L: 38 (H) x 21 (W) x 17.5 (D) cm
Bezpečnost: CE, meets IEC 1010/1 norm for laboratory instruments
Pracovní teplota: 0 - 40 °C
Pracovní vlhkost: 0-90% RH, not condensing
Dálkové ovládání: 0–10 V DC (dosing speed control), 3–12 V DC (ON/OFF control); (option 0-20 or 4-20 mA)
Software: PC control software PNet (optional)

famous doser

What is the lead time of Powder Doser?

We have DOSERs in stock and it can be delivered to you within a few days from order. Practically, it is only the time taken for shipping


Do you accept Credit Card payments?

You can pay using your credit card via PayPal. Most importantly, it is not necessary to have a PayPal account to make the payment via credit card.


Could you please confirm the particle size that can be fed by the dosing system?

The biggest particle size for powders that could be dosed with our DOSER is about 4 mm. A good dosing of powders depends essentially on the flowing properties of the respective powders to be dosed. In general, homogeneous and free-flowing powders can be dosed best.


How does the LAMBDA DOSER work with the substances which are prone to agglomeration?

The powder / granules / solid must be properly treated for good flowing properties It is also possible to allow a gas flow to pass through the Lambda dosing vessel in order to create a controlled atmosphere.
It is often possible to substantially improve the flowing properties of the respective powder / granules / solid by adding Aerosil (fumed silica – pure SiO2) to your powder (~0.1 - 2% by weight).


How the LAMBDA DOSER reacts to abrasive powders?

In the case of abrasive materials being used with the LAMBDA Powder DOSER, you will have an opportunity to replace the glass vessel and / or the distributors as needed.


What is the accuracy of the each dispensing?

The motor of the driving unit is controlled with quartz-driven electronics, similarly as it is done in electronic watches.Therefore, the accuracy depends mainly on the powder. For best accuracy and precise doses, the powder needs to be free-flowing and homogeneous.


Can the DOSER control the mass flow rate (g/min) of the powder being dispensed?

It is always possible to control the mass flow rate of the powder using the LAMBDA Doser. You could program the DOSER up to 27 pairs of speed and time settings to control your desired mass flow rate (g/min).


Is it possible to control the DOSER via Mettler Toledo titroprocessor to dispense NaF to the titration process when required?

Yes, the powder DOSER can be controlled by Mettler Titration Excellence T50/T70/T90 via RS-232 communication (most common type of connection with Mettler accessories), to dispense the desired amount of powder to the titration process.
The powder DOSER has to be included as RS-232 control in the titroprocessor unit and the desired activity can be selected (e.g.: the signal would switch off the DOSER or switch it on, etc.)
For integration of DOSER with your Mettler titroprocessor, you would need the RS-232 interface activated in the powder dosing unit and RS-232 connection cable.