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IMT120-10

Dimension A

Model 

Inches  

mm 

npT

120,121 

9.12 

231,4 

Immersion stem

1bs-8bs 

8.47 

214,8 

bulb & capillary  

Internal Set Point Adjustment, Types C120, F120

External Set Point Adjustment, Types B121, B122, E121, E122, E122P

Dimension A

Model 

Inches  

mm 

npT

120,121 

10 

254,0 

Immersion stem

2bs-8bs 

9.3 

237,0 

bulb & capillary

13272, 13322 

10 

254,0 

Immersion stem (freeze protection)

13273, 13321 

9.3 

237,0 

bulb & capillary (heat Tracing)

Type 820E single switch 

Dimension A

Model 

Inches  

mm

1bs 

3-3/4

95,3

2bs 

2-5/8

66,7

3bs 

2-1/8

54,0

4bs 

6-3/4

171,5

5bs 

127,0

6bs 

4-1/2

114,3

7bs 

76,2

8bs 

3-1/4

82,6

 

3-1/2 [88.9mm]

3-3/16 [81.0mm]

7" [177.8mm]

6-3/8 [161.9mm]

1-3/16

[30.2mm]

 9" [228.6mm]

14-11/16 

[373.1mm]

 4-11/16 [119.3mm]

1-11/16 

[43.2mm]

2-1/4 

[57.5mm]

1-17/32 

[38.9mm]

3/8

[9.5mm]

"A"

7/8

[22.2mm]

BULB

SET POINT 

ADJUSTMENT 

KNOB

SET POINT

INDICATING

POINTER

(RED)

CLEARANCE 

FOR 1/4 SCREW 

4 MT'G HOLES

TEMPERATURE

INDICATING

POINTER 

(BLACK)

3/4 NPT E/C

BOTH SIDES

BLU

BLK 

RED

VL

T

ORN

YEL

SWT

 #1

SWT

 #2

N.C.

COM.

N.O.

N.C.

COM.

N.O.

5/64 (2mm)

SOCKET

COVER-LOCK

SCREW

GROUND

SCREW

3/4 NPT E/C

PLUGGED

ADJUSTMENT “D”

Type 822E dual switch 

Dimensions

Summary of Contents for 120 Series

Page 1: ...om Date code format on nameplate is YYWW for year and week TOOLS NEEDED Screwdriver Adjustable Wrench to 1 1 2 MOUNTING The connection of the device shall be made by cable entries or a stopping box certified in type of explosion protection flameproof enclosure d suitable for the conditions of use and correctly installed to prevent ignition seal all conduit runs within 18 inches of enclosure Always...

Page 2: ...C 2 N O 1 N O 2 COM 1 COM 2 Plunger RED YEL ORN OPTION 1010 1190 1195 FOR TYPE B121 C120 E121 F120 ONLY DPDT N C N O COM N C N O COM TYPE 822E 1 2 NC NO COM NC NO COM SWT 2 SWT 1 BLK BLU VLT RED ORN YEL Breather Drain Option M450 Types C120 F120 Mount with breather drain facing down See Figure 1 The conduit connec tion must be properly sealed potted for this type of installation Breather Drain Opt...

Page 3: ...bly movement Connect test lights to indicate switch operation or listen for the switch to click Loosen adjustment A and move the Adjustment Pointer until it agrees with the Indicating Pointer When the switch clicks re tighten the screw NOTE Type 822E has a single knob and pointer for both switches Both switches are standardly factory set together within 5 of the dial range Turning the knob positio...

Page 4: ...ove to the left if capillary is to be added to the process or to the right if capillary is to be removed from process Type E121 E122 E122P F120 Models 1BS 8BS Remote Mount Temperature Assembly Type B121 B122 C120 Models 120 121 Direct Mount Temperature Assembly Added to or taken away from the process Model Number Range Cap Length Division 1 180 to 120 F 2 ft 2 125 to 350 F 1 1 2 ft 3 125 to 500 F ...

Page 5: ... Model Inches mm 1BS 3 3 4 95 3 2BS 2 5 8 66 7 3BS 2 1 8 54 0 4BS 6 3 4 171 5 5BS 5 127 0 6BS 4 1 2 114 3 7BS 3 76 2 8BS 3 1 4 82 6 3 1 2 88 9mm 3 3 16 81 0mm 7 177 8mm 6 3 8 161 9mm 1 3 16 30 2mm 9 228 6mm 14 11 16 373 1mm 4 11 16 119 3mm 1 11 16 43 2mm 2 1 4 57 5mm 1 17 32 38 9mm 3 8 9 5mm A 7 8 22 2mm BULB SET POINT ADJUSTMENT KNOB SET POINT INDICATING POINTER RED CLEARANCE FOR 1 4 SCREW 4 MT G...

Page 6: ... before use Electrical ratings stated in literature and on nameplate must not be exceeded Overload on a switch can cause damage even on the first cycle Wire unit according to local and national electrical codes using wire size recommended in installation sheet Do not mount unit in ambient temp exceeding published limits LIMITED WARRANTY Seller warrants that the product hereby purchased is upon del...

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