Pharmaceutical companies worldwide race against time to discover and develop new drugs for diseases ranging from cancer to HIV to heart disease.  In this pursuit, it is essential that they utilize the most time efficient tools and scientific techniques without compromising accuracy.  Perhaps the most commonly used analytical technique in the pharmaceutical industry is HPLC.  The FlowCal 5000 Liquid Flow Meter is an indispensable tool for analytical chemists, metrologists, and validation specialists responsible for HPLC calibration and qualification.  Manual calibration of HPLC flow rates by gravimetric or volumetric measurements is tedious, labor intensive, and prone to error.  Nevertheless, the majority of laboratories in the U.S. that calibrate HPLC flow rates currently use manual techniques.  Use of a digital liquid flow meter offers improvements in speed, accuracy, and reproducibility.  The FlowCal 5000 digital liquid flow meter is designed specifically to simplify HPLC flow rate calibration. The digital flow meter speeds up HPLC troubleshooting by making it easy to diagnose common pump problems like poorly functioning check valves or leaking pump seals.

The FlowCal 5000 is durable, certified, and accurate at low flow rates. It measures flows accurately to 1¼l/minute and is guaranteed to be linear from 50µL/min to 25mL/min. Traceable and certified, all FlowCal 5000 flow meters are calibrated to the end user's specifications.  They are supplied with standard single-point calibration at 1 mL/min, standard three-point calibration at 0.5, 1.0, and 2.0 mL/min, or custom calibration.

The principle of operation is the repeated and accurate measurement of the transit time of a meniscus between two optical sensors.  To enable very low flow rates to be measured rapidly, the measuring volume is about 0.14 mL and all bores have been reduced to a minimum. At a flow rate of 2mL/min the flow meter reading is updated every 15 seconds. Flow rate is independent of liquid type up to a viscosity of 10 centipoise.  The unit is suitable for measurement of all common HPLC solvents. 

The FlowCal 5000 is compact and lightweight, with a weight of only 12 ounces.  The data is displayed on a large 4-digit Liquid Crystal Display and can be output to a printer or computer via the RS232 interface to the full 6-digit reading. A miniature thermal printer is available as an option.

For more information about the FlowCal 5000 Digital Liquid Flow Meter, visit http://www.tovatech.com/liquid_flow_meter.html .

Tovatech LLC is a distributor of laboratory equipment to the US, Canada, and Mexico.  Tovatech is staffed entirely by scientists with expert knowledge in the field of Digital Liquid Flow Meters.  What sets Tovatech apart is our willing technical and customer support staff.  Please give us a call and we'll help you find the product that best fits your needs.  You can reach us at 973 913 9734 or info@tovatech.com.  Our knowledgeable representatives are available 8AM-9PM EST to answer any questions that you may have about the FlowCal 5000 product line.

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