LAMBDA POWDER DOSER - Automatic powder dosing and dispensing
Features of LAMBDA POWDER DOSER
- Automatic powder dispenser or feeder for laboratories
- Continuous or programmable addition of powders, powdery and crystalline substances without a spoon/spatula
- Reproducible dosing flow rates
- Perfect for GLP and safety Standards
- Easy to add carcinogens, corrosive chemicals, hazardous and active pharmaceutical powders
- Constant dosing of solids aseptically
- Addition of powders UNDER controlled ATMOSPHERE (Like Argon, Nitrogen,Oxygen..)
- RS-485 interface or RS-232 interface for remote control
- Controlled by foot switch
DOSER / HI-DOSER - Powder dosing instrument
LAMBDA powder dosing instrument offers safe, controlled and reproducible dosing or feeding of crystalline or powdery substances at laboratory scale. It allows the automatic or continuous addition of powders, powdery and crystalline substances. The dosing rates of the powder DOSER and Hi-DOSER can be selected over a large range (3 decades), e.g. dosing range of NaCl in DOSER: 50 mg/min to 50 g/min and Hi-DOSER: 250 mg/min to 250 g/min.
The powder dosing units can get delivered with 0.2 L vessel, ~ 1 L vessel or ~3 L vessel. DOSER & Hi-DOSER solid feeder / powder pump will modernize your laboratory!
Description of the LAMBDA DOSER- powder pump
This laboratory instrument, consisting of a dosing unit coupled to a digitally controlled stepping motor, allows the constant and reproducible dosing of solids. As the DOSER powder feeder offers different control options, it can also be used in automatically controlled processes.The LAMBDA DOSER powder feeder is a unique programmable powder pump for free-flowing solid substances. It allows the automatic or continuous addition of powders, powdery and crystalline substances without a spoon.
The LAMBDA DOSER solid feeder / powder pump will modernize your laboratory.
Dosing rate
The digital dosing speed range from 0–999 allows a precise and reproducible solid flow rate (e.g. 50 mg/min to 50 g/min for NaCl).
Programmable
Many number of dosing speeds and dosing times can be easily programmed.
Capacity
Approx. 200 ml glass vessel (corresponding to 250 g NaCl, 200 g NaHCO3 or 150 g sucrose). This capacity is optimal for most laboratory applications. A larger vessel of approx. 1 l volume is also available.
Safety
With the DOSER the additions of powdery chemicals become reproducible, safe and conform to modern safety and quality rules (GLP), as it is required for the laboratory manipulation of chemicals. The hermetic construction of the DOSER allows safe handling of dangerous and toxic solid substances.
Assembly and Cleaning
The dosing apparatus has been constructed for easy assembly and cleaning. The DOSER can be coupled to all common glass recipients having standard ground fittings NS 29/32 or SVL threaded connectors. All parts in contact with the powdery substances are made of chemically resistant materials.
Small dimensions and robust construction
Special attention has been paid to minimizing the dimensions of all parts of the powder DOSER. The DOSER can be adapted easily to complex laboratory installations. The robust construction and the use of high quality materials assure a long lifetime of the DOSER.
Controlled atmosphere
Several seals make the DOSER air-tight and it can be used with a slight over- or under-pressure. The glass vessel can also be flushed by a neutral gas, if it is necessary for a given reaction.
Economical
Automatic dosage frees technicians for other works. Due to better reproducibility and elimination of errors the number of experiments can be reduced. The DOSER offers an excellent price-performance ratio.
Remote controls
The speed of addition can be remotely controlled over the whole range by applying a voltage of 0 to 10 V and switch-ON/OFF is controlled through an external contact or 12 V signal. The RS-485 or RS-232 interface (optional) allows for enhanced PC control (variable flow rates, dosing gradients, etc.). A PC control software PNet is also available (optional).
Quantification of the dosed substances
The powder DOSER can be configured with the electronic LAMBDA INTEGRATOR (optional) and allows the quantification of the amount of powder added as a function of time. This provides important information on the processes or reactions, e.g. when the DOSER is controlled by a controller (pH-stat, thermostat, etc.)
|
|
DOSER |
Hi-DOSER |
|
Type |
LAMBDA DOSER – microprocessor-controlled programmable powder dosing instrument |
LAMBDA Hi-DOSER – microprocessor-controlled programmable powder dosing instrument |
|
Programming |
Up to 27 steps of speed and time |
Up to 99 steps of speed and time |
|
Time resolution |
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 |
Microprocessor controlled stepping motor |
Microprocessor controlled brushless long life BLDC motor with neodymium magnets |
|
Power supply |
95–240 V/50–60 Hz AC plug-in power supply with DC 12V/12W output; possible field operation on 12 V accumulator (plug type: AU, EU, UK, US) |
90–240 V/50–60 Hz AC plug-in power supply with DC 12V/50W output; possible field operation on 12 V accumulator (plug type: AU, EU, UK, US) |
|
Volume |
Approx. 0.2 l, 1 l and 3 l glass vessel |
Approx. 1 l and 3 l glass vessel |
|
Dimensions |
Motor unit: 6 (H) x 7 (W) x 13 (D) cm
Glass vessel 0.2 l: 30 (H) x12 (W) x 5 (D) cm Glass vessel 1 l: 30 (H) x 18 (W) x 14 (D) cm Glass vessel 3 l: 38 (H) x 21 (W) x 17.5 (D) cm |
Motor unit: 10.5 (W) x 9.5 (H) x 13 (D) cm
Glass vessel 1 l: 30 (H) x 18 (W) x 14 (D) cm Glass vessel 3 l: 38 (H) x 21 (W) x 17.5 (D) cm |
|
Speed control range |
0 to 999 |
|
|
Non-volatile memory |
Storage of all settings |
|
|
Interface |
RS-485 or RS-232 |
|
|
Remote control |
0-10 V (dosing speed control); 3-12 V DC (ON/OFF control); option 0-20 or 4-20 mA; foot switch |
|
|
Operation humidity |
0-90% RH, not condensing |
|
|
Operation temperature |
0 - 40 °C |
|
|
Safety |
CE, meets IEC 1010/1 norm for laboratory instruments |
|
A short reference of pulications
1. Copper chloride fed into the quartz reactor by LAMBDA Powder Feeder for producing carbon-coated copper nanoparticles by vapor-phase reduction
Eiroma, K.; Forsman, J.; Hult, E.-L.; Auvinen, A.; Sipiläinen-Malm, T.; Alastalo, A.; Tapper, U.; Leppäniemi, J.; Mattila, P.; Lyyränen, J.; Sarlin, J.; Jokiniemi, J.; Mössmer, S.. Water-Based Carbon-Coated Copper Nanoparticle Fluid—Formation of Conductive Layers at Low Temperature by Spin Coating and Inkjet Deposition. Journal of Imaging Science and Technology, Volume 56, Number 4, July 2012 , pp. 40501-1-40501-10(10)
Keywords: Sedimentation, deposition, copper chloride, nanoparticles, Ethylene glycol, carbon, vapour phase reduction, porous alumina, CNT
2. Continuous feeding of Copper chloride powder on alumina (Al2O3) pellet bed within a quartz glass nanoparticle reactor to develop Carbon coated copper nanoparticle Inkjet Fluid
Eiroma, Kim; Auvinen, Ari; Forsman, Johanna; Hult, Eva-Lena; Jokiniemi, Jorma; Koskela, Pirjo; Sarlin, Juha; Sipiläinen-Malm, Thea; Tapper, Unto. Development of Conductive Carbon Coated Copper Nanoparticle Inkjet Fluid. NIP & Digital Fabrication Conference, 2011 International Conference on Digital Printing Technologies. Pages 418-826. , pp. 458-461(4)
Keywords: continuous, flow reactor, copper chloride, nanoparticles, gas phase, aluminium oxide, carbon nanotubes, CNT, inkjet, spin coating
3. Timed particle additions using LAMBDA Powder DOSER to study the fabrication and evaluation of the ferroelectric reinforced metal matrix composites (FR-MMCs)
Poquette, Ben David. Understanding Ferroelastic Domain Reorientation as a Damping Mechanism in Ferroelectric Reinforced Metal Matrix Composites
Virginia Polytechnic Institute and State University in Blacksburg, Virginia
Keywords: Metal Matrix Composites, Damping, Ferroelectric, Ferroelastic, Twinning, Domain Reorientation, Electroless Plating, Electrodeposition, Electroforming, Dispersion Strengthening
4. LAMBDA Powder DOSER used as a particle feeder for Drop Tube Reactor (DTR)
Hampp F., Janajreh I., Development of a Drop Tube Reactor to Test and Assist a Sustainable Manufacturing Process. Advances in Sustainable Manufacturing, pp 141-148. 2011.
Department of Mechanical Engineering, Masdar Institute of Science and Technology, Abu Dhabi, UAE
Keywords: Gasification, Drop Tube Reactor, Sustainable Product, Development, Small Scale Experiments, Simulation Assisted Design
5. Pre-treated (over dried at 60%, moisture content 2.38%) lignocellulosic biomass feeding operation for fed-batch enzymatic hydrolysis was controlled by programmed LAMBDA powder DOSER
Chao Tai, Deepak R. Keshwani, Diego S. Voltan, Pankaj S. Kuhar, Aaron J. Engel. Optimal control strategy for fed-batch enzymatic hydrolysis of lignocellulosic biomass based on epidemic modelling, Biotechnol Bioeng. 2015 Feb 5. doi: 10.1002/bit.25552
University of Nebraska-Lincoln, USA; São Paulo State University, Brazil and CAPES Foundation, Brazil.
Keywords: Biofuels; Enzymatic hydrolysis; Epidemic model; Fed-batch; Optimal control
Read More