Masterflex L/S Variable-Speed Drive with Remote I/O; 600 rpm

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Item # EW-07528-10

Easy-to-use drives offer precise speed control and digital display of rpm—ideal for metering applications

SKU: UNH50334INUN Category:


Masterflex L/S Variable-Speed Drive with Remote I/O; 600 rpmMasterflex L/S Variable-Speed Drive with Remote I/O; 600 rpmTwo year warrantyMasterflex L/S Variable-Speed Drive with Remote I/O; 600 rpm

Masterflex L/S Variable-Speed Drive Includes:

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.

Key Features

  • Flow rate 0.06 to 3400 mL/min (depends on drive rpm and tubing size)
  • Three digit LED display shows motor rpm — confirm speed setting at a glance
  • 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
  • Stackable, splash-resistant ABS plastic housing; IP33 rated
  • Remote control capabilities via a DB9 female 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

More About this Item

These accurate analog console drives have powerful motors, speed display, and ±0.25% speed control for precise flow regulation—ideal for metering applications. Remote speed control requires DB9 male connector 07595-45 or cable assembly 07595-47. Use remote connector for control of start/stop via contact closure or open collector (5 V TTL); control start/stop via footswitch 77595-35 or handheld remote 07528-80.



Masterflex® tubing pump systems are made to exact specifications using a proven process developed over more than 50 years. This is key to Cole-Parmer's promise to deliver solutions you trust.

Customer Input

Before we create any Masterflex® tubing pump, we define the unique needs of our customers through product performance surveys, as well as input from use in actual applications. We then develop new products and features based on reliability, ease of use, and product function.


During the concept stage, we consider all the factors vital in creating durable products that provide our customers with the best results possible. This is where we put our nearly 50 years of experience in developing more than 5,000 products to work. It's where we consider all the possibilities, including specific applications, product adaptability, and costs, as well as our requirements for safety, environmental needs, service, reliability, and noise specifications.


Once a product is conceptualized, proven procedures are defined and maintained to control and verify its design to ensure that specified requirements are met. Controls are put in place to ensure that the product is producible and results verifiable. The product is then designed using the latest technology, and its operation is verified through testing.


The results of our information gathering, product-concept development, and the application of our engineering expertise is the prototype Masterflex pump system. Once developed, thorough testing and refining of this working model ensure that the product will produce the result that we—and our customers— can rely on.


On-time delivery of durable, trouble-free products with superior service are rights our customers deserve. Therefore, before any Masterflex pump hits the market it undergoes countless hours of testing to ensure that it performs to our high standards. Each product is scrutinized under actual application conditions to ensure that it meets specific requirements.


Our products are made in a facility certified to ISO 9001:2000 standards. Masterflex pumps meet U.S. and international standards, and we warrant the accuracy and integrity of every pump we sell.


An international company, Cole-Parmer distributes fluid handling products all over the world. Our distribution center uses the latest tracking systems to process thousands of products, so you can be assured of timely delivery— whether you order one pump or a hundred—across the street or around the world.

Customer/Application Services

Our partnership with you doesn't end with the sale. We are available for follow-up, technical support, and service to ensure you are completely happy with your product. If you are not satisified, we'll fix the problem or replace the product. Also, our maintenance staff is available to quickly handle repairs and can help you identify replacement parts. Finally, our expert Application Specialists can help you with product selection and maintenance, and offer you continuous support. Whether you are setting up a complicated system or just have a quick question, their advice is absolutely free. Delivering Complete Solutions... From Engineering to Manufacturing, Distribution to Applications Assistance.

Additional information

Dimensions27.4 × 21.1 × 21.6 cm

  • Pump SeriesL/S
  • Control TypeDigital Variable Speed
  • Min RPM (rpm)6
  • Max RPM (rpm)600
  • SpeedVariable
  • Speed Control±0.25% (1 rpm at 600 and 300 rpm; 0.1 rpm at 100 rpm)
  • Max Flow Rate (mL/min)3400
  • Min Flow Rate (mL/min)0.36
  • Reversible MotorYes
  • No. of Pump Heads Accepted2
  • Type of Pump Heads AcceptedStandard, Easy-Load, Easy-Load II, Easy-Load 3, High Performance, Cartridge, Multichannel, PTFE Tubing, PTFE Diaphragm
  • Motor (watts)75
  • Drive IP ratingIP 33
  • Power (VAC)90 to 260
  • Power (amps)2.2
  • Power (Hz)50/60
  • Drive Length (in)10.7968
  • Drive Width (in)8.3125
  • Drive Height (in)8.5
  • Drive Length (mm)274
  • Drive Width (mm)211
  • Drive Height (mm)216
  • Open-Head SensorNo
  • Housing MaterialABS Plastic and Aluminum
  • Motor hp1/10
  • Remote I/O4 to 20 mA, 0 to 10 V, start/stop and direction via contact closure
  • DescriptionVariable-Speed Drive w/ Remote I/O; 600 rpm