Is It Time To Replace Your Water Aspirator?

A water aspirator is a simple device capable of creating a low strength vacuum for many standard laboratory applications. Though they are inexpensive to purchase and easy to use, the long-term operating costs and environmental impact of laboratory water aspirators can be quite significant.

The above video from Lab Manager follows Linda the Lab Manager as she and her colleagues investigate the real costs of owning and operating a laboratory water aspirator.

Video: Choosing the Best Vacuum Pump for Your Lab Application

 

Are you in the market for a new laboratory vacuum pump? Perhaps you need more information on which pump to choose. A new video, produced by Lab Manager, may provide valuable insights. View the video directly above, or click here.

Trade Show Demo Features KNF Micro Vacuum Pump

Throughout the year, we’ve noticed a demonstration unit that caught our attention on the show floors of BIOMEDevice San Jose, SLAS and MD&M West. This demo – created and displayed by AllMotion – highlights the ability of their four-axis controller board, and utilizes a KNF Micro Gas Pump to create vacuum for stacking and unstacking marbles at a dizzying speed. AllMotion is a California-based manufacturer of stepper drives, stepper controllers, servo drives and servo controllers.

The demo illustrates the ability of the AllMotion board to run motors through four axis of movement and calculate the associated trajectories, while simultaneously running the KNF Micro Gas Pump, a vacuum switch, limit switches, and LEDs – all in a perfectly-timed ballet of motion.

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In Case You Missed It: KNF Neuberger Pump Used on PBS’ “NOVA”

“The global cyberwar is heating up and the stakes are no longer limited to the virtual world of computers.”

So says the voiceover talent, during a recent episode of “NOVA” on PBS. During the episode, real-world examples are provided to examine the science and technology behind today’s cyber warfare. Already, highly sophisticated, stealthy computer programs such as the notorious Stuxnet worm can take over the control systems that regulate food factories, pipelines, power plants, and chemical facilities—even our cars.

However, this blog isn’t written to put a scare into our readers; we just found it interesting that 23 minutes into the episode, a KNF air pump is used to pop a balloon! (episode available on PBS website via link below)

http://www.pbs.org/wgbh/nova/military/cyberwar-threat.html

Liam O’Murchu, Sr. Development Manager at Symantec, demonstrates how a PLC—or programmable logic controller—can be used with malicious code to override an intended program command. The air pump, KNF model N 828, inflates a balloon for three seconds, and then stops, as directed by the PLC. However, if infected, the PLC can be used to drive the pump continuously, thus leading to the balloon being inflated until…POP!

Enhanced Line of Liquid Laboratory Pumps

It’s day two here at #pittcon15 in New Orleans. If you are here at the conference and have not yet had a chance to stop by KNF booth #2211, please plan to do so. One of our features at this year’s show is the recently enhanced line of SIMDOS 10 liquid laboratory pumps.

KNF's SIMDOS 10 liquid laboratory pump

SIMDOS 10 pumps are ideal for metering and dosing applications in a number of professional and academic fields, including: chemistry, pharmaceutical, food research, and polymers, to name a few. SIMDOS 10 pumps offer lab personnel the ability to transfer liquids (up to 500 centistokes*) at flow rates of 1-100 mL/min, with dose volumes from 1 mL to 999 mL.

“While the SIMDOS 10 and SIMDOS 02 pumps can move liquids quickly and accurately, their real strengths are configuration and control options which can be matched to a user’s automation requirements and/or chemical profile” said Dan McDougall, Senior Manager of Laboratory Products at KNF. Indeed the SIMDOS pumps are designed to allow for convenient control of lab metering/dosing tasks which may be repetitive and redundant.

For example, new to this latest version of the SIMDOS 10 is a Cycle Metering Mode. “Say you’re performing an automated fill of vials on a conveyor belt…”, explains MacDougall. “You can program the SIMDOS to dispense a discrete volume into each vial with set pause durations in-between.” This new feature allows the user to set the number of cycles, the pause duration, and the dosing volume.

In addition to the added convenience of the Cycle Metering Mode, there are a few new control type options now available for the  SIMDOS 10. First, the SIMDOS 10 is now available in an RCP-version, which includes a RS 232 interface, enabling ASCII character control of virtually all pump functions, plus the ability to use programmable lab control software such as LABVIEW, or KNF’s free PC control software (available for download at knfusa.com). Next, an RC-version is available, which includes an RC cable for external control options such as a foot switch, or analog PC control. Finally, the standard S-version of the SIMDOS relies on the manual on-board interface with back-lit display for intuitive, push-button operation.

For a demonstration of the SIMDOS 10 and 02 lab liquid pumps, click the video below courtesy of Jean Delteil, KNF Liquid Pumps Product Manager; or stop by PITTCON booth #2211 for a live demo.

* Please visit knfusa.com/SIMDOS10 for detailed performance specifications.

KNF Demo to Debut at SLAS 2015

In just a few short days, some of us here at KNF will be leaving for our nation’s capital to attend the 4th annual SLAS Conference and Exhibition, being held from February 8th-10th. We are particularly excited about this year’s SLAS event as we will be unveiling a brand new demonstration at the KNF Neuberger booth (# 1511).

The new KNF demonstration effectively showcases a number of real-world pump applications, including: direct liquid transfer, vacuum aspiration, and pneumatics via 3 unique KNF pumps. When initiated, the demo cycles continuously through three separate stages. Light-up placards provide clarity for the viewer by explicitly stating which of the following processes is being performed in the demo:

KNF Pump Applications Demo

The KNF demo cycles through Vacuum Aspiration, Onboard Pneumatics, & Direct Liquid Transfer.

1) Vacuum Aspiration– The first process (pictured right) shows fluid being aspirated by the suction created from a powerful vacuum pump. You may notice the system’s ability to generate vacuum-over-liquid easily and quickly – this is due to the selection of a pump with a high gas flow rate, and the ability to handle moist gas with slugs of liquid.

2) Onboard Pneumatics– The next stage demonstrates high pneumatic performance in a compact, quiet and energy-efficient manner. The system employs a micro gas pump to pressurize a pneumatic cylinder which, in turn, raises a tube – a similar function to needle aspiration which is performed for various medical applications.

3) Direct Liquid Transfer– The 3rd process demonstrates direct liquid transfer, using a diaphragm liquid pump. Here, direct transfer of liquid media is made possible using a specially-designed, two-headed pump with high self-priming ability, and smooth flow – ideal for demanding, real-world applications, such as direct handling of liquid waste.

While each stage of the demo illustrates a unique application, it’s important to note the commonalities amongst the stages: First, each pump/stage includes chemically-resistant materials, which allow for the transfer of aggressive media. Each pump also utilizes a brushless DC (BLDC) motor. The BLDC motor (available for most KNF pumps) enables more precise speed control, lowers audible noise and vibration, and promotes a longer lifetime of operation. Also, a new KNF Digital Control provides enhanced programmable features over previous analog controllers while promoting consistent performance and reliability. Tested to over 1.6 million on/off cycles and 100,000+ hours in pump life tests, the KNF Digital Controller offers superior performance in demanding applications.


If you’re going to be at SLAS next week please stop by the KNF Neuberger booth (#1511) to check out our new demo, and to learn more about KNF’s range of gas and liquid OEM pumps.

Closer Look: KNF USA Process and Industrial Pumps

Our “About KNF USA” series comes to a close with its fourth and final chapter, a video snapshot of the Process and Specialty Products division. Richard Aerts, Process Products Engineer, walks you through options for reliable transfer, sampling, evacuation and recirculation of liquid and gas in critical—and often hazardous—industrial applications.

To explore further, download our Process Pump Catalog, or see our Process product line.

You can view the entire KNF Neuberger video library here.