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BULLETIN:  44-604.17
EFFECTIVE:  January 2015
SUPERSEDES:  May 2010

Service Policy

Owners of MAGNETROL may request the return of a con-
trol  or  any  part  of  a  control  for  complete  rebuilding  or
replacement.  They  will  be  rebuilt  or  replaced  promptly.
Controls returned under our service policy must be returned
by  Prepaid  transportation. MAGNETROL  will  repair  or
replace  the  control  at  no  cost  to  the  purchaser  (or  owner)
other than transportation if:

1.  Returned within the warranty period; and
2.  The factory inspection finds the cause of the claim to

be covered under the warranty.

If the trouble is the result of conditions beyond our control;
or, is NOT covered by the warranty, there will be charges
for  labor  and  the  parts  required  to  rebuild  or  replace  the
equipment.

In  some  cases  it  may  be  expedient  to  ship  replacement
parts;  or,  in  extreme  cases  a  complete  new  control,  to
replace the original equipment before it is returned. If this
is desired, notify the factory of both the model and serial
numbers of the control to be replaced. In such cases, credit
for the materials returned will be determined on the basis of
the applicability of our warranty.

No claims for misapplication, labor, direct or consequential
damage will be allowed.

Return Material Procedure

So  that  we  may  efficiently  process  any  materials  that  are
returned,  it  is  essential  that  a  “Return  Material
Authorization” (RMA) number be obtained from the factory,
prior  to  the  material's  return.  This  is  available  through
MAGNETROL’s  local  representative  or  by  contacting  the
factory. Please supply the following information:

1.  Company Name
2.  Description of Material
3.  Serial Number
4.  Reason for Return
5.  Application

Any  unit  that  was  used  in  a  process  must  be  properly
cleaned  in  accordance  with  OSHA  standards,  before  it  is
returned to the factory.

A  Material  Safety  Data  Sheet  (MSDS)  must  accompany
material that was used in any media.

All shipments returned to the factory must be by prepaid
transportation.

All replacements will be shipped F.O.B. factory.

ASSURED QUALITY & SERVICE COST LESS

705 Enterprise Street • Aurora, Illinois 60504-8149 • 630-969-4000 • Fax 630-969-9489
[email protected] • www.magnetrol.com

Copyright © 2015 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.

Magnetrol and Magnetrol logotype are registered trademarks of Magnetrol International.
CSA logotype is a registered trademark of Canadian Standards Association

Summary of Contents for T20 Series

Page 1: ...Installation and Operating Manual Liquid Level Switches Top Mounting T20 and T21...

Page 2: ...r the area is known to be non hazardous Low Voltage Directive For use in Category II installations If equipment is used in a manner not specified by manufacturer protection provided by equipment may b...

Page 3: ...nce Information 5 1 Troubleshooting 12 5 1 1 Check switch mechanism 12 5 1 2 Check complete unit 13 5 2 Agency Approvals 14 5 3 Specifications 15 5 3 1 Physical 15 5 4 Replacement Parts 16 5 4 1 Model...

Page 4: ...o a pivoted switch actuator and adjustment screw As the float rises following the liquid level it raises the attraction sleeve into the field of the magnet which then snaps against the non magnetic en...

Page 5: ...ution This instrument is intended for use in Installation Category II Pollution Degree 2 Adjust the process connection as required to bring control to a vertical position MAGNETROL controls must be mo...

Page 6: ...d by first following Steps 1 2 and 3 NOTE A switch or circuit breaker shall be installed in close proximity to equipment and within easy reach of operator It shall be marked as the disconnecting devic...

Page 7: ...s been furnished with an explosion proof or moisture proof switch housing it must be sealed at the conduit outlet with a suitable compound or non harden ing sealant to prevent entrance of air 9 Test s...

Page 8: ...electrical circuit s through the control is deactivated Close operating medi um supply valve on controls equipped with pneumatic switch mechanisms 1 Determine what change in differential is necessary...

Page 9: ...the field Switch actuation levels have been set at the factory to meet specific customer specifications Variations in actual conditions from design conditions usually requires special control modific...

Page 10: ...e housing cover or any seals become damaged or misplaced obtain a replacement immediately 4 1 2 Inspect switch mechanisms terminals and connections monthly 1 Switches should be inspected for excessive...

Page 11: ...ontrol longer than necessary to make routine inspections 2 Never place a jumper wire across terminals to cut out the control If a jumper is necessary for test purposes be certain it is removed before...

Page 12: ...1 1 Check switch mechanism 1 Pull disconnect switch or otherwise disconnect power to the control 2 Remove switch housing cover 3 Disconnect power wiring from switch assembly 4 Swing magnet assembly i...

Page 13: ...he set points Magnets should pull in on rising level On Model T21 the lower float actuates the upper switch and the upper float actuates the lower switch If magnets fail to pull in lower the level and...

Page 14: ...iv 1 Groups C D listed as TYPE 4X 7 9 Class II Div 1 Groups E F G All with an electric switch mechanism and a housing Class I Div 1 Groups B C D listed as TYPE 4X 7 9 Class I Div 1 Group B Class II Di...

Page 15: ...ith Series T20 units only 1 81 45 Ref B 7 94 201 A Distance to actuating level 4 min Actuating level 6 25 158 Model T20 with flange These dimensions increase by 2 19 55 when unit is supplied with an H...

Page 16: ...7 8 10 2 4 Item Description 1 Housing cover 2 Housing base 3 Switch mechanism 4 Attraction sleeve 5 Jam nuts 6 Guide washer s 7 Float stem 8 Float 9 Adaptor bushing guide tube assembly 10 Enclosing tu...

Page 17: ...cludes items 4 5 6 7 Consult factory Float 3 00 5 00 Z07 1202 003 3 50 6 00 Z07 1202 009 4 00 Z07 1102 008 4 50 Z07 1102 009 Adaptor bushing guide tube assembly Consult factory Float stem Consult fact...

Page 18: ...over 2 Housing base 3 Switch mechanism 4 Upper attraction sleeve 5 Jam nuts 6 Guide washer s 7 Upper stem assembly 8 Lower float 9 Lower attraction sleeve stop tube and washers 10 Retaining rings 11 U...

Page 19: ...004 Z04 5840 014 Z04 5840 019 004 5840 024 004 5840 029 Important When ordering spare parts please specify A Model and serial numbers B Name and part number of replacement part or assembly All replace...

Page 20: ...F 38 C 750 F 399 C 900 F 482 C 1000 F 538 C 3 00 x 5 00 76 x 127 500 34 377 26 353 24 335 23 4 00 102 600 41 483 33 465 32 459 32 3 50 x 6 00 89 x 152 500 34 403 27 388 26 383 26 4 50 114 500 34 403 2...

Page 21: ...Sealed Snap Switch 50 to 750 46 to 399 SPDT 1 FKP FKT FAC FKQ FSS FA9 DPDT 1 FNP FNT FBC FNQ FNS FB9 Series HS Hermetically Sealed 5 amp Snap Switch with Wiring Leads 50 to 550 46 to 288 SPDT 1 HMC H...

Page 22: ...4 00 102 4 50 114 4 125 lb C I flange H2A 4 150 lb F S flange H3A 5 125 lb C I flange J2A J2B J2C 5 150 lb F S flange J3A J3B J3C 6 125 lb C I flange K2A K2B K2C 6 150 lb F S flange K3A K3B K3C 6 300...

Page 23: ...K FG9 Series HS Hermetically Sealed 5 amp Snap Switch with Wiring Leads 50 to 550 46 to 288 SPDT 2 HMN HMP HMN HMP DPDT 2 HMY HMZ HMY HMZ Series R High Temperature Snap Switch 40 to 750 40 to 399 SPDT...

Page 24: ...is of the applicability of our warranty No claims for misapplication labor direct or consequential damage will be allowed Return Material Procedure So that we may efficiently process any materials tha...

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