Promotional price valid on web orders only. Your contract pricing may differ. Interested in signing up for a dedicated account number?
Learn More

Cole-Parmer™ Masterflex L/S Precision Process Drives

Easy-to-use Masterflex L/S Precision Process Drives offer precise speed control and digital display of rpm—NEMA 4X housings stand up to process and washdown applications

 View more versions of this product

Catalog No. 11-747-354

Add to cart

Includes: 6-ft (1.8-m) line cord with IEC 320/CEE22 socket.



  • Flow rate 0.06 to 3400 mL/min (depends on drive rpm and tubing size)
  • Four digit LED display shows motor rpm—confirm speed setting at a glance
  • Integrated open-head sensor stops drive motor when pump head is opened
  • Reversible motor—purge tubing before or after pumping; pump fluid in either direction
  • LED indicators confirm motor direction
  • Powerful motors let you stack 2 or 4 pump heads for increased flow rates and for multichannel applications
  • Separate speed and power (on/off) control—maintain speed setting while turning pump on/off
  • NEMA 4X (IP66) rated housing
  • Remote control capabilities via a watertight connector on back of drive
  • Speed control input: 4 to 20 mA or 0 to 10 VDC
  • Pump direction (CW/CCW) via open collector or contact closure
  • Start/stop via open collector or contact closure
  • Membrane keypad for easy up-front control of speed, direction, and start/stop
  • Amps Power 2.2 at 115 VAC; 1.1 at 230 VAC

Order Info

These models are shipped with country-specific plug/cord set; please specify ultimate destination when ordering.


CE; ETL(US & CA); IP66


ISO 9002 registered

Warranty and Services

2 Years



6 to 600 rpm
Masterflex L/S Precision Process Drive, Stainless Steel, with Open-Head Sensor; 600 rpm
Digital Variable Speed
6-ft (1.8-m) line cord with IEC 320/CEE22 socket. These models are shipped with country-specific plug/cord set; please specify ultimate destination when ordering.
90 to 260 VAC, 50/60 Hz
Stainless steel
27.8 lb
Digital Variable Speed
90 to 260 VAC
9.25 in.
9 in.
0.36 to 3400 mL/min, depending on pump head, tubing size, and rpm
2.2 A
Easy-Load II w/ Open-Head Sensor, Easy-Load II, Easy-Load, Standard, High-Performance, PTFE Tubing, PTFE Diaphragm
Fluid handling
75 W
Four digit LED
4 to 20 mA, 0 to 10 V, start/stop and direction via contact closure
IP 66
12 in.
Not included
±0.25% (1 rpm at 600; 0.1 rpm at 100 rpm)
Compatible with all L/S formulations
Provide Content Correction

We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.

Product Title

By clicking Submit, you acknowledge that you may be contacted by Fisher Scientific in regards to the feedback you have provided in this form. We will not share your information for any other purposes. All contact information provided shall also be maintained in accordance with our Privacy Policy.

Cancel Submit