Masterflex L/S EASY-LOAD II

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WARRANTY

Use only MASTERFLEX precision tubing with MASTERFLEX pumps to ensure

optimum performance. Use of other tubing may void applicable warranties.

The Manufacturer warrants this product to be free from significant deviations

from published specifications. If repair or adjustment is necessary within the

warranty period, the problem will be corrected at no charge if it is not due to

misuse or abuse on your part, as determined by the Manufacturer. Repair costs

outside the warranty period, or those resulting from product misuse or abuse,

may be invoiced to you.

The warranty period for this product is two (2) years from date of purchase.

PRODUCT RETURN

To limit charges and delays, contact the seller or Manufacturer for authorization

and shipping instructions before returning the product, either within or outside

of the warranty period. When returning the product, please state the reason for

the return. For your protection, pack the product carefully and insure it against

possible damage or loss. Any damages resulting from improper packaging are

your responsibility.

TECHNICAL ASSISTANCE

If you have any questions about the use of this product, contact the Manufacturer

or authorized seller.

Printed in U.S.A.

(US & Canada only) Toll Free 1-800-MASTERFLEX • 1-800-637-3739

(Outside

US & Canada) 1-847-381-7050

www.masterflex.com • techinfo@masterflex.com

*EN809 manufactured by:

Masterflex LLC

28W092 Commercial Avenue

Barrington, IL 60010

OPERATING MANUAL

EASY-LOAD

PUMP HEADS

A-1299-0620B

Edition 17

(US & Canada only) Toll Free 1-800-MASTERFLEX ● 1-800-637-3739

(Outside US & Canada) 1-847-381-7050

www.masterflex.com ● techinfo@masterflex.com

Need help?

Do you have a question about the Masterflex L/S EASY-LOAD II and is the answer not in the manual?

Summary

Safety Precautions

Product Use Limitation

Specifies limitations on product use, especially for patient-connected applications.

Tubing Handling Warnings

Warns about turning off the drive before changing tubing to prevent injury.

Explanation of Symbols

Explains the meaning of caution symbols related to danger and crushing risks.

Maintenance and Cleaning Procedures

Rotor Replacement

Details the steps for replacing the pump head rotor assembly.

Replacement Parts and Accessories

Lists order numbers for rotor assemblies and mounting hardware.

Product Specifications

Occlusion Adjustment

Describes how to adjust pump head occlusion for optimal performance.

Multi-Channel Mounting

Explains mounting pump heads in tandem and the required hardware.

Typical Flow, Pressure and Vacuum Data

Provides performance data for various tubing types and speeds.

Drive Compatibility and Setup

Tube Loading Procedure

Step-by-step guide for loading tubing into the pump head.

Two Channel Tube Loading

Specific instructions for loading two tubes in a dual-channel setup.

Overview

Function Description
Important Technical Specifications
Flow Rate and Pressure/Vacuum Data (Typical, tested with NORPRENE®, PHARMED® BPT, and TYGON® tubing)
Usage Features
Maintenance Features

The MASTERFLEX L/S EASY-LOAD® II Pump Head is a peristaltic pump system designed for simple, easy-to-use fluid transfer. It is compatible with MASTERFLEX L/S drives or other compatible systems that feature a standard tang interface. The pump head accommodates various tubing sizes, allowing for a wide range of flow rates. Its unique over-center cam design and automatic tubing retention facilitate quick tubing changes and reduce maintenance time.

Function Description:

The pump head operates by compressing and releasing tubing as rollers rotate, creating a peristaltic action that propels fluid. This design ensures that the fluid only contacts the inside of the tubing, preventing contamination of the pump head and simplifying cleaning. The EASY-LOAD II design allows for quick and easy tubing installation and removal. For multi-channel applications, up to four pump heads can be mounted in tandem, depending on the torque capabilities of the drive.

Important Technical Specifications:

Number of rollers: 4
Maximum pump speed: 600 rpm
Nominal torque load (Running): Up to 90 oz-in (6.5 kg·cm)
Housing materials: Polyphenylene sulfide (PPS), acetal, nylon
Roller materials: Cold-Rolled Steel (CRS) / Stainless Steel (SS)
Bearing materials: Cold-Rolled Steel (CRS) / Sealed Stainless Steel
Rotor materials: Stainless Steel (SS)
Operating Temperature: 32°F to 104°F (0°C to 40°C)
Storage Temperature: -49°F to 149°F (-45°C to 65°C)
Humidity: 0% to 90% (non-condensing)
Dimensions (W x H x D):
- Operating: 4 in x 4-3/4 in x 2-3/4 in (102 mm x 121 mm x 70 mm)
- Open: 4 in x 5-1/2 in x 2-3/4 in (102 mm x 140 mm x 70 mm)
Weight: 1.4 lb (0.6 kg)
Noise level: <70 dBA @ 1 meter
Compliance: EN809 (EU Machinery Directive)

Flow Rate and Pressure/Vacuum Data (Typical, tested with NORPRENE®, PHARMED® BPT, and TYGON® tubing):

L/S® 13: 0.06 mL/Rev, 36 mL/min @ 600 rpm, 40 psig (2.7 bar) max discharge pressure, 26 in (660 mm) Hg vacuum, 29 ft (8.8 m) H₂O suction lift.
L/S® 14: 0.22 mL/Rev, 130 mL/min @ 600 rpm, 40 psig (2.7 bar) max discharge pressure, 26 in (660 mm) Hg vacuum, 29 ft (8.8 m) H₂O suction lift.
L/S® 16: 0.80 mL/Rev, 480 mL/min @ 600 rpm, 40 psig (2.7 bar) max discharge pressure, 26 in (660 mm) Hg vacuum, 29 ft (8.8 m) H₂O suction lift.
L/S® 25: 1.7 mL/Rev, 1000 mL/min @ 600 rpm, 35 psig (2.4 bar) max discharge pressure, 26 in (660 mm) Hg vacuum, 29 ft (8.8 m) H₂O suction lift.
L/S® 17: 2.8 mL/Rev, 1700 mL/min @ 600 rpm, 20 psig (1.4 bar) max discharge pressure, 20 in (510 mm) Hg vacuum, 22 ft (6.7 m) H₂O suction lift.
L/S® 18: 3.8 mL/Rev, 2300 mL/min @ 600 rpm, 5 psig (1.0 bar) max discharge pressure, 20 in (510 mm) Hg vacuum, 22 ft (6.7 m) H₂O suction lift.
L/S® 15: 1.7 mL/Rev, 1000 mL/min @ 600 rpm, 40 psig (2.7 bar) max discharge pressure, 26 in (660 mm) Hg vacuum, 29 ft (8.8 m) H₂O suction lift.
L/S® 24: 2.8 mL/Rev, 1700 mL/min @ 600 rpm, 40 psig (2.7 bar) max discharge pressure, 26 in (660 mm) Hg vacuum, 29 ft (8.8 m) H₂O suction lift.
L/S® 35: 3.8 mL/Rev, 2300 mL/min @ 600 rpm, 35 psig (2.4 bar) max discharge pressure, 26 in (660 mm) Hg vacuum, 29 ft (8.8 m) H₂O suction lift.
L/S® 36: 4.8 mL/Rev, 2900 mL/min @ 600 rpm, 20 psig (1.4 bar) max discharge pressure, 24 in (610 mm) Hg vacuum, 27 ft (8.3 m) H₂O suction lift.

Usage Features:

Tubing Compatibility: Designed for use with MASTERFLEX precision tubing to ensure optimum performance. Use of other tubing may void warranties.
Easy-Load Mechanism: The pump head features a loading lever that, when rotated to the left, opens the pump for easy tubing installation. Rotating the lever to the right closes the pump, securing the tubing.
Multi-channel Mounting: L/S EASY-LOAD II Pump Heads can be mounted in tandem (up to four) using special mounting hardware (sold separately). The tubing on the inside pump head(s) can be changed.
Occlusion Adjustment (on 77201-60, -62 models only): An occlusion adjustment knob allows users to fine-tune performance. Settings include "4" for nominal performance, "5" for increased pressure/vacuum with reduced tubing life, and "2" or "3" for longer tubing life with less pressure and vacuum. It is recommended to turn the knob to "1" after loading and adjust until the pump primes. Occlusion usually does not need to be readjusted when changing tubing.
Safety Precautions:
- This product is not intended for patient-connected applications, including medical and dental use, and has not been submitted for FDA approval.
- Always turn the drive off before removing or installing tubing to prevent fingers or loose clothing from being caught in the rollers.
- Stop the drive when changing tubing or its position in the rotor mechanism (the rotor is partially exposed when the loading lever is open).
- Do not over-tighten screws or wing nuts during multi-channel mounting.
- Ensure tubes do not cross inside the pump head.

Maintenance Features:

No Lubrication Required: The L/S EASY-LOAD II Pump Head does not require lubrication.
Cleaning: The pump head can be cleaned with a mild detergent solution. It should not be immersed, and excessive fluid should not be used.
Rotor Replacement: The rotor assembly is replaceable. To disassemble the pump head for cleaning or rotor replacement:
1. Remove the pump head from the drive.
2. Remove the rear cover of the pump head.
3. Remove the two screws securing the rotor.
4. Remove the old rotor assembly.
5. Install the new rotor assembly and secure it with two screws.
6. Reinstall the rear cover.
Warranty: The manufacturer warrants the product to be free from significant deviations from published specifications for two (2) years from the date of purchase. Repairs due to misuse or abuse will be invoiced.
Product Return: For returns, contact the seller or manufacturer for authorization and shipping instructions. Pack the product carefully and insure it against possible damage or loss.
Technical Assistance: Contact the manufacturer or authorized seller for any questions regarding product use.