Masterflex Ultrasonic Flow Sensors Datasheet

Masterflex® Ultrasonic Flow Sensors

Ensure accurate flow
rates without affecting
working fluid

– Noninvasive design eliminates contact with

working fluid—ideal for applications with
strict hygienic standards

– Provides accurate readings not affected by

fluid color, tube color, or electromagnetic
properties of liquids

– Integrated electronics—no external

electronic board is needed

– Continuously monitor peristaltic pump

flow rates and send data directly to your
computer with optional communications
package

– Ready to use out of the box—calibrated

for use with Masterflex L/S® and I/P®
platinum-cured silicone tubing

– Easily adapt settings for your application

using optional communications package

Compact aluminum sensor body

clamps around the tubing

Masterflex ultrasonic flow sensors accurately and
noninvasively measure the flow rate of liquid in
tubing used with peristaltic pumps. Since the
sensor never contacts the working fluid, it is
reusable in single-use applications providing
significant recurring savings. The clamp-on sensor
design makes setup easy—simply place the tubing
in the sensor channel and close the clamp lid.

Each sensor is optimized for Masterflex tubing
sizes, and comes calibrated to national measure­ment standards for Masterflex platinum-cured
silicone tubing when water is the working fluid and
across the full flow range. Adapt for use with other
working fluids or Masterflex tubing materials of
the same size with the optional communications
package. For best accuracy, the sensor should be
calibrated for the specific working fluid.

ColeParmer.com

Specifications

Accuracy: ±2 to 4% after using calibration software

Repeatability: ±2 to 4% after using calibration software

Output: RS-485, 4 to 20 mA, 0 to 20 kHz, or PNP-NPN

Sensor housing material: aluminum

Max operating temperature: 140°F (60°C)

Enclosure rating: IP65

What’s included: flow sensor, cable, and calibration report.

For Masterflex tubing size

Engineered for L/S Precision tubing

13 0.57 36 0.48 30 1.73" x 1.73" x 1.10" (44 x 44 x 28 mm)
14 2.06 130 0.48 30 1.73" x 1.73" x 1.18" (44 x 44 x 30 mm)
16 7.61 480 0.48 30 1.73" x 1.73" x 1.26" (44 x 44 x 32 mm)
25 15.85 1000 0.48 30 1.73" x 1.73" x 1.42" (44 x 44 x 36 mm)
17 26.95 1700 0.48 30 1.73" x 1.73" x 1.34" (44 x 44 x 34 mm)
18 36.46 2300 0.48 30 1.73" x 1.73" x 1.38" (44 x 44 x 35 mm)

Engineered for L/S High-Performance Precision tubing

15 14.4 1100 0.48 30 1.73" x 1.73" x 1.34" (44 x 44 x 34 mm)
24 28.53 1800 0.48 30 1.73" x 1.73" x 1.38" (44 x 44 x 35 mm)
35 41.21 2600 0.48 30 1.73" x 1.73" x 1.42" (44 x 44 x 36 mm)
36 53.89 3400 0.48 30 1.73" x 1.73" x 1.42" (44 x 44 x 36 mm)

Engineered for I/P Precision tubing

26 63.4 4000 0.48 30 1.73" x 1.73" x 1.42" (44 x 44 x 36 mm)
73 126.8 8000 0.48 30 1.73" x 1.73" x 1.50" (44 x 44 x 38 mm)

*Higher flow rates can be measured; the stated maximum flow rate is that of the tubing.

Maximum flow rate* Minimum flow rate

GPH mL/min GPH mL/min

Masterflex Flow Sensor Communications Package

– Calibrate flow sensors to your requirements

– Get direct access to settings and fine-tune parameters

The optional communications package lets you adapt the flow
sensor for your application, then monitor and record data.
Adjust sensor parameters including tubing material, working
fluid and temperature to calibrate for your application. Then
monitor your data in real-time graphically, or capture and export
to analyze your process. Connect sensors directly to a computer
or to any meter or controller that accepts RS-485, 4 to 20 mA, 0 to
20 kHz, or PNP-NPN push-pull inputs.

Dimensions (L x W x H) Catalog number

MK-33501-13
MK-33501-14
MK-33501-16
MK-33501-25
MK-33501-17
MK-33501-18

MK-33501-15
MK-33501-24
MK-33501-35
MK-33501-36

MK-33501-26
MK-33501-73

MK-33501-96 Communications package for Masterflex ultrasonic flow sensors.

Includes software for data capture and calibration on USB drive and connector cable.

4420.1

In the US

625 E. Bunker Court
Vernon Hills, IL 60061
Call toll-free: 1-800-323-4340
Phone: [phone]
Fax: [phone]

www.coleparmer.com

In Canada

Call toll-free: 1-800-363-5900
www.coleparmer.ca

In China

Call: [phone]
www.coleparmer.com.cn

In Germany

Call: [phone]
www.coleparmer.de

In India

Toll-free: 1-800-266-1244
www.coleparmer.in

In the United Kingdom

Call: [phone]
www.coleparmer.co.uk

International customers

Call: 1-847-549-7600 to reach our
International Sales Department.