PendoTECH Single Use Rotary Flow Meter

The PendoTECH Single Use Rotary Flow Meter delivers cost-effective and accurate flow measurements in filtration processes, chromatography, and other biopharmaceutical processes. The Rotary Flow Meter is designed for flow ranges between 0.1 to 20L/min and has a pulse constant of either 4,500 or 100,000 pulses/L depending on the model. Two model sizes are available for scalability and despite being called "single-use" they are suitable for repeat or long-term use. The unit arrives non-sterile but may be sterilized via autoclave or gamma irradiation.

The flow sensor works by measuring the rotations of the rotor that is in the flow path. The rotor rotates on a ruby bearing and is the only moving part. The rotor blades reflect an infrared light beam and each rotation measured is converted to an electrical pulse that is received by the flow monitor which has a “pulse accumulator” that counts the pulses. The rotations per second are converted to volume/minute by a factor called the pulse constant. The nominal pulse constant is different for each rotor size and pre-calibrated pulse constants for each rotor are available. For best accuracy with fluids of viscosity much different than water, the pulse constant can be easily calculated by measuring a known volume and setting the monitor to count the pulses. The pulse constant is then calculated by the pulses counted divided by the volume.

These units are compatible with PendoTECH Flow Monitor, PendoTECH PressureMAT-PLUS, PendoTECH TFF Process Control System (DAQ), PendoTECH Data Acquisition System, or other qualified 3rd party monitors.

Optional electronic assembly Includes:

• 3ft length with integral 1/4in earphone plug
• 3 wires: 5VDC power, common ground, 34mA power output