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IMT120-10

cp12115000

RECOMMENDED PRACTICES AND WARNINGS 

United Electric Controls Company recommends careful consideration 
of the following factors when specifying and installing UE pressure and temper-
ature units. Before installing a unit, the Installation and Maintenance instruc-
tions provided with unit must be read and understood. 

•  To  avoid  damaging  unit,  proof  pressure  and  maximum  temperature  limits 

stated  in  literature  and  on  nameplates  must  never  be  exceeded,  even  by
surges  in  the  system.  Operation  of  the  unit  up  to  maximum  pressure  or
temperature  is  acceptable  on  a  limited  basis  (e.g.,  start-up,  testing)  but 
continuous operation must be restricted to the designated adjustable range.
Excessive  cycling  at  maximum  pressure  or  temperature  limits  could  reduce
sensor life.

•  A  back-up  unit  is  necessary  for  applications  where  damage  to  a  primary

unit  could  endanger  life,  limb  or  property.  A  high  or  low  limit  switch  is
necessary  for  applications  where  a  dangerous  runaway  condition  could 
result.

•  The  adjustable  range  must  be  selected  so  that  incorrect,  inadvertent  or

malicious  setting  at  any  range  point  cannot  result  in  an  unsafe  system
condition.

•  Install  unit  where  shock,  vibration  and  ambient  temperature  fluctuations

will not damage unit or affect operation. Orient unit so that moisture does
not enter the enclosure via the electrical connection. When appropriate, this
entry point should be sealed to prevent moisture entry.

•  Unit  must  not  be  altered  or  modified  after  shipment.  Consult  UE  if

modification is necessary.

•  Monitor  operation  to  observe  warning  signs  of  possible  damage  to  unit,

such as drift in set point or faulty display.  Check unit immediately.

•  Preventative  maintenance  and  periodic  testing  is  necessary  for  critical

applications where damage could endanger property or  personnel.

•  For all applications, a factory set unit should be tested 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  delivery,  free  from 
defects in material and workmanship and that any such product which is found 
to be defective in such workmanship or material will be repaired or replaced by 
Seller  (Ex-works,  Factory,  Watertown,  Massachusetts.  INCOTERMS);  provided, 
however, that this warranty applies only to equipment found to be so defective 
within a period of 24 months from the date of manufacture by the Seller.  Seller 
shall not be obligated under this warranty for alleged defects which examination 
discloses  are  due  to  tampering,  misuse,  neglect,  improper  storage,  and  in 
any  case  where  products  are  disassembled  by  anyone  other  than  authorized 
Seller’s  representatives.  EXCEPT  FOR  THE  LIMITED  WARRANTY  OF  REPAIR 
AND  REPLACEMENT  STATED  ABOVE,  SELLER  DISCLAIMS  ALL  WARRANTIES 
WHATSOEVER  WITH  RESPECT  TO  THE  PRODUCT,  INCLUDING  ALL  IMPLIED 
WARRANTIES  OF  MERCHANTABILITY  OR  FITNESS  FOR  ANY  PARTICULAR 
PURPOSE. 

LIMITATION OF SELLER’S LIAbILITY

Seller’s  liability  to  Buyer  for  any  loss  or  claim,  including  liability  incurred  in 
connection  with  (i)  breach  of  any  warranty  whatsoever,  expressed  or  implied, 
(ii) a  breach  of  contract,  (iii)  a  negligent  act  or  acts  (or  negligent  failure  to
act) committed by Seller, or (iv) an act for which strict liability will be inputted
to  seller,  is  limited  to  the  “limited  warranty”  of  repair  and/or  replacement  as
so stated in our warranty of product.  In no event shall the Seller be liable for
any  special,  indirect,  consequential  or  other  damages  of  a  like  general  nature,
including, without limitation, loss of profits or production, or loss or expenses of
any nature incurred by the buyer or any third party.

UE specifications subject to change without notice.

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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