Flow Meters

Compatible with tubing to existing re-usable rotary flow meters on the market, our Disposable Rotary Flow Meters provide a low-cost alternative solution for filtration and chromatography processes. When connected to the Pendotech Flow Monitor, the flow meter’s rotor enables precision liquid measurement, value monitoring and data communication for streamlined data management.

Ordering Information:

• FM-22WV: Single-Use Rotary flow meter rotor, non-sterile, PVDF, 1/4inch hose barb
• FM-22WV-E: Electronic assembly for one PVDF rotor with1/4inch hose barb (includes one rotor)
• FM-23WV: Single-Use Rotary flow meter rotor, non-sterile, PVDF, 1/2inch hose barb
• FM-23WV-E: Electronic assembly for one PVDF rotor with 1/2 inch hose barb (includes one rotor)
• FMT-S: Pendotech Premium flow meter Monitor with LCD and white backlit display, 4-20mA output, serial port, 12-24VDC power input range

The LEVIFLOW® single-use flow meters are for ultrasonic flow measurements in many different applications in the Biopharm Industry. Figure 1 illustrates the operating principle. Two piezoelectric transducers, mounted in the sensor housing, generate and receive an ultrasonic wave. The wave going in direction of the flow (with-stream wave) is accelerated and the wave going against the flow direction (against-stream wave) is slowed down. The two waves are processed by the Pendotech Leviflow® Sensor Monitor. The difference of the transit time of both waves is proportional to the velocity of the fluid. The monitor has a digital LED display for the flow reading. It also has both a 4-20mA analog output and a digital frequency output. These outputs facilitate interface of the monitor to other systems for process control and data acquisition.

The standard configuration of the LEVIFLOW single-use flow meters (Figure 2) consists of a flow sensor and the Pendotech LEVIFLOW Sensor Monitor with a digital signal processor (DSP) for processing the sensor signals.
SYSTEM BENEFITS
• High precision (1%) flow measurement
• Flow sensor can be used as single use to prevent cross-contamination or re-used
• No moving parts -> no particle generation
• Improved bubble robustness due to DSP technology
• Easy integration into OEM equipment
• The wet materials of the single-use sensors fabricated from biocompatible (FDA, USP-VI,
BSE/TSE and Animal free) gamma sterilizable polypropylene (PP).

APPLICATIONS
• TFF filtrate flow
• Normal flow/depth filtration
• Chromatography

Pendotech’s Coriolis flow meter (PCFM) Series is a family of flow meters that rely on a unique sensor to measure mass flow rate. Containing two flow-sensitive elements that are vibrated relative to one another (similar to the tines of a tuning fork), the PCFMs are ideal for tangential flow filtration, depth filtration and chromatography.

Ordering Information:

• PCFM-31 Pendotech Coriolis Flow Meter with 3/8 inch OD with flow measurement from 12 – 1,500grams/min
• PCFM-32 Pendotech Coriolis Flow Meter with 3/8 inch OD with flow measurement from 12-4000mL/min

Data Sheets

• Pendotech Single-Use Rotary Flow meter
• Pendotech Single-Use Ultrasonic Flow meters
• Pendotech Coriolis Flow meter

Technical Notes

• Pendotech Flow meter Offerings and Suggested Applications
• Technical Note: Pendotech Sensors and Industry 4.0: Integrating a Pendotech Single-Use Sensor System with a Digital Highway

Application Notes

• Improve Perfusion Cell Culture with Controlled Pressure and Flow Rate Application Note