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15

44-604 Top Mounting Liquid Level Switches

5.3

Specifications

5.3.1 Physical  

inches (mm)

B

7.94*

(201)

A

2.44

(61)

1" NPT

Distance to

actuating level

(4" min.

Actuating

level

 6.25*

(158)

Housing 

A

B

Conduit Connections

TYPE 4X/7/9,

5.93

3.87

1" NPT dual entry

Group B

(151)

(98)

NEMA 1 

4.70

5.00

1

4

" NPT single entry

Pneumatics

(119)

(127)

Model T20 with 1" NPT

➀  

All housings rotatable 360°.

➁  

Pneumatic switches available with 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 HS switch with terminal block.

10.12
(257)

8.46

(214)

B

A

Distance

to lower

actuating 

level

Distance to

upper actuating 

level (4" min.)

Actuating

level

Actuating

level

1.81 (45) Ref.

8" min.

Model T21 with flange

NOTE:

On Model T21 the lower float actuates
upper switch mechanism. The upper float
actuates the lower switch mechanism.

Distance To

Maximum

Minimum

Upper level

40" (1016)

4" (102)

Lower level

48" (1219)

12" (305)

Содержание T20 Series

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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