WPI MityFlex Manuel utilisateur
Instrumenting scientific ideas
WORLD
PRECISION
INSTRUMENTS
www.wpiinc.com
INSTRUCTION MANUAL
051316
MityFlex
Peristaltic Pump
Serial No._____________________
MityFlex
World Precision Instruments i
Copyright © 2016 by World Precision Instruments, Inc. All rights reserved. No part of this publication
may be reproduced or translated into any language, in any form, without prior written permission of
World Precision Instruments, Inc.
CONTENTS
ABOUT THIS MANUAL ................................................................................................................... 1
INTRODUCTION .............................................................................................................................. 1
SPECIFICATIONS.............................................................................................................................. 2
OPERATING INSTRUCTIONS......................................................................................................... 3
Installation .................................................................................................................................. 3
Roller/Tubing Selection............................................................................................................ 3
Variable Speed........................................................................................................................... 3
Tubing Installation .................................................................................................................... 4
Alternate Tubing Installation Procedure........................................................................ 4
Fuse Installation ....................................................................................................................... 5
Motor Brush Replacement ..................................................................................................... 5
DECLARATION OF CONFORMITY ................................................................................................ 6
WARRANTY ....................................................................................................................................... 7
Claims and Returns .................................................................................................................. 7
Repairs......................................................................................................................................... 7
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MityFlex
World Precision Instruments 1
ABOUT THIS MANUAL
The following symbols are used in this guide:
This symbol indicates a CAUTION. Cautions warn against actions that can cause
damage to equipment. Please read these carefully.
This symbol indicates a WARNING. Warnings alert you to actions that can cause
personal injury or pose a physical threat. Please read these carefully.
NOTES and TIPS contain helpful information.
INTRODUCTION
MITYFLEX™ variable speed drive is powered by DC gearmotors. A specially designed
electronic speed control system provides smooth acceleration control over the entire
ow range. The three position on/o switch allows the user to maintain speed setting
when unit is turned o or reversed. This unit is designed for continuous operation at
any speed.
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SPECIFICATIONS
ELECTRICAL: 115 VAC, 60 Hz
PRIMING: Unit is self priming and will hold vacuum when o.
OPERATION: Pump can run dry without damaging the motor or drive unit, however
the tubing life will be reduced.
CONSTRUCTION: High impact plastic and long lasting alloy metals housed in a steel
enclosure.
MAX. HEAD PRESSURE: 40 PSI. Normal pressure 18 PSI varies depending on tubing
used.
MAX. SUCTION LIFT: 29 feet (8.8m) with H2O.
RATING: 100% continuous operation at maximum of 40°C ambient.
FLOW RATE: Variable speed drive system - reversible.
FUSE: Located in the inlet receptacle. Uses 5 X 20mm - 1.0 amp. (See page 4 for
replacement procedure.)
DC MOTOR BRUSHES: Replaceable (See page 4 for replacement procedure.)
WEIGHT: 13 lb
Included with MityFlex are four short lengths of Norprene™ tubing to t into the roller
mechanism — 1/16”,1/8”,3/16”,1/4”— and black rollers for use with 3/16”to 1/4”tubing. The
optional MITY-KIT includes replacement tubing and a set of red rollers for use with
1/16”and 1/8”tubing.
FLOW RANGE:
Tubing ID Flow (mL/min)
1/16”(0.062”/1.6mm) 1.7 - 48.0
1/8”(0.125”/3.1mm) 7.0 - 190.0
3/16”(0.187”/4.8mm) 16.0 - 456.0
1/4”(0.250”/6.4mm) 28.0 - 800.0
Flow range based on pumping water at 25°C and 0 PSI using 60 durometer
thermoplastic elastomer tubing.
MityFlex
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OPERATING INSTRUCTIONS
Installation
POWER REQUIREMENTS: Voltage and frequency of power supply must be the same
as shown on unit.
WIRING CONNECTIONS: All wiring and electrical connections must comply with local
and national electrical codes.
MOUNTING: Place on any at surface. Ensure that space is provided at the back
of the case for air circulation through ventilation holes. Do not allow tubing to be
crimped.
MOUNTING LOCATION: Pump should be placed in a dry location with adequate
cooling provided. The ambient temperature should not exceed 40°C. This unit should
not be used outdoors or in hazardous locations.
Roller/Tubing Selection
Use the following color coded rollers with the appropriate tubing I.D. Your unit is
assembled with black rollers. Red rollers are included in the optional MITY-KIT. See
separate instructions for roller replacement enclosed in your tube kit.
Roller Tubing ID Tubing OD mL/Revolution
Black 1/4” (0.250) 7/16” (0.438”/11.1mm) 3.5
Black 3/16” (0.187) 3/8” (0.375”/9.5mm) 2.1
Red 1/8” (0.125) *3/8” (0.375”/9.5mm) 0.8
Red 1/16” (0.062)*3/8” (0.375”/9.5mm) 0.21
* Red rollers for use with 1/8” and 1/16” tubing are included in the optional MITY-KIT.
NOTE: The 1/16” ID tubing is actually a small piece of tubing inside a larger piece.
Variable Speed
Variable speed control may be set at any level before turning unit on.
Unit is designed for continuous operation at any speed.
CAUTION: Avoid prolonged operation in the stalled position to ensure longer
motor life.
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Tubing Installation
Inspect all tubing regularly and replace if any sign of deterioration occurs. Always wear
safety glasses and protective clothing when working with chemicals.
1. Disconnect power to the pump.
2. Disconnect the suction and discharge tubing from the
pump tubing.
3. Remove four thumb screws and pump cover.
4. Pull out old pump tubing and discard.
5. Clean roller race, removing any particles that could damage tubing.
6. Using extra bracket (Fig. 1), rotate roller bracket assembly until it is in position as
in Fig. 2. (Be sure power is disconnected.)
7. Push new tubing into inlet port, anchoring the tubing in grippers (see Fig. 3).
If using 9” piece of tube, 11/2” should be extended outside of inlet port.
8. Continue to rotate the roller bracket assembly using the extra bracket, while
pushing the tubing into the roller race (Fig. 4).
9. Insert the tubing into the outer port (Fig. 5) and replace the cover and screws.
Alternate Tubing Installation
Procedure
Without removing the pump cover, run the unit
at high RPM. Pull the old tubing out from outlet
port of pump. Install new tube by inserting into
inlet port; continue feeding tube 1/4” in at a time
allowing the roller assembly to push tubing
through. When tubing is half way around the race,
put your nger over the inlet hole of the tube and
continue to feed tubing 1/4” at a time; this should
make installation easier. Continue until desired tubing extension is obtained. Run unit
one minute.
INLET PORT
OUTLET PORT
Fig. 6
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Fuse Installation
1. Disconnect power to pump.
2. Find the power socket on the back of the case.
3. Pull the power cord out.
4. Slide the drawer below the receptacle out toward you.
5. Remove old fuse and replace with new fuse.
6. Push drawer in until it locks in place.
Motor Brush Replacement
1. Disconnect power to pump.
2. Remove case cover by removing 8 screws.
3. With a at head screw driver, remove the brush caps on both sides of the DC motor.
4. Remove old brush and replace with new brush. (Slide in horizontally)
5. Push metal plate on the end of the brush inside. Hold it while replacing brush cap.
6. Replace case cover.
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DECLARATION OF CONFORMITY
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