United Electric Controls 54 Series User manual

IMP54-05
www.ueonline.com
Pipe Mounting
Mount the switch directly to the line via the NPT pressure connection.
Vertical Surface Mount
Two holes for #10 screws are provided in the bracket plate.
Conduit Connection
A 7/8” diameter hole has been provided in the bracket plate for mounting a
conduit fitting.
Skeleton Versions J54S, J54AS H54S
Pipe Mounting
Mount the switch directly to the line via the NPT pressure connection.
Vertical Surface Mount
Two openings for #6 screws are provided in the rear of the bracket plate.
(See Figure 1).
WIRING
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING UNIT.
WIRE UNITS ACCORDING TO NATIONAL AND LOCAL ELECTRICAL
CODES. MAXIMUM RECOMMENDED WIRE SIZE IS 14 AWG. THE
RECOMMENDED TIGHTENING TORQUE FOR FIELD WIRING TERMINALS IS 7 TO
17 IN-LBS.
ELECTRICAL RATINGS STATED IN LITERATURE AND ON NAMEPLATES
MUST NEVER BE EXCEEDED - OVERLOAD ON A SWITCH CAN CAUSE
FAILURE ON THE FIRST CYCLE.
Bring wires up to the terminals from the rear, so that wires lay along insulator.
The three switch terminals are clearly labeled “common”, “normally open” and
“normally closed”. For optional switches supplied with leadwires, the following color
coding applies:
GENERAL
BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FOR
COMPATIBILITY BETWEEN THE PROCESS MEDIA AND THE SENSOR
AND WETTED PARTS.
54 Series pressure switches are activated when a bellows, diaphragm or
piston sensor responds to a pressure change. This response, at a pre-deter-
mined set point, actuates one or two snap-acting switch(es), converting the
pressure signal into an electrical signal. Control set point may be varied by
turning the adjustment hex on “J” types or a reference adjustment dial on
“H” types. (See Adjustment -PART II).
PROOF PRESSURE* LIMITS STATED IN THE LITERATURE AND ON
NAMEPLATES MUST NEVER BE EXCEEDED, EVEN BY SURGES IN
THE SYSTEM. OCCASIONAL OPERATION OF UNIT UP TO PROOF
PRESSURE IS ACCEPTABLE (E.G., START-UP, TESTING). CONTINUOUS
OPERATION SHOULD NOT EXCEED THE DESIGNATED OVER RANGE PRESSURE.
*PROOF PRESSURE
THE MAXIMUM PRESSURE TO WHICH A PRESSURE SENSOR MAY BE OCCA-
SIONALLY SUBJECTED, WHICH CAUSES NO PERMANENT DAMAGE (E.G., START-
UP, TESTING). THE UNIT MAY REQUIRE RE-GAPPING.
THESE PRODUCTS DO NOT HAVE ANY FIELD REPLACEABLE PARTS.
Please refer to product bulletin for product specifications. Product bulletins
may be found at www.ueonline.com
Part I - Installation
Tools Needed
Adjustable Wrench
Screwdriver
MOUNTING
LOCATE SWITCH WHERE VIBRATION, SHOCK, AND AMBIENT
TEMPERATURE FLUCTUATIONS ARE MINIMAL. TO AVOID DAMAGE TO
SWITCH, ALWAYS HOLD THE WRENCH ON THE WRENCH FLATS OR HEX
PORTION OF THE PRESSURE CONNECTION WHEN TIGHTENING.
The switch can be mounted in any position.
Enclosed Versions J54, J54A, and H54
Remove cover first by removing the one captive screw located on the front of
the cover.
Figure 1
54 Series
Pressure Switches
Types
Enclosed: J54, J54A, H54
Skeleton: J54S, J54AS, H54S
UNITED ELECTRIC
CONTROLS
Installation and Maintenance
Instructions
Please read all instructional literature carefully and thoroughly before starting. Refer to the final page for the listing of Recommended
Practices, Liabilities and Warranties.
IMP54-05
Manual Reset (Option 1530)
SPDT
Common Violet
Normally Open Blue
Normally Closed Black

IMP54-05
www.ueonline.com
Part II - Adjustments
Tools Needed
1/4” open end wrench
Flatblade screwdriver
Uncalibrated Single Switch Versions J54, J54S
Mount switch onto a calibrated pressure source (vacuum source for model 22
and 126). Secure fitting to source tight enough to prevent leaks. Use pipe
sealant or Teflon®tape to ensure tight seal. Apply tightening torque to the
fitting only.
USING THE SENSOR HOUSING OR BRACKET TO TIGHTEN THE FITTING
TO THE SOURCE WILL RESULT IN DAMAGE TO THE SWITCH.
Using a 1/4” open end wrench, turn main adjustment screw counterclockwise
(out of sensor plunger) to lower set point or clockwise (into sensor plunger) to
raise set point. (See Figure 2).
ALWAYS RECHECK SET POINTS AFTER ANY ADJUSTMENTS ARE
MADE.
Calibrating Single Switch Versions H54, H54S
Turn the reference dial to desired set point by aligning setting on dial with
dowel pin. (See Figure 3).
Calibrating All Dual Switch Versions J54A, J54AS
Mount switch via an NPT pressure connection onto a calibrated pressure
source (vacuum source for model 22 and 126). Secure fitting to source tight
enough to prevent leaks. Use pipe sealant or Teflon®tape to ensure tight
seal. Apply tightening torque to the fitting only.
USING THE SENSOR HOUSING OR BRACKET TO TIGHTEN THE FITTING
TO THE SOURCE WILL RESULT IN DAMAGE TO THE SWITCH.
High Set of Range
Using a 1/4” open end wrench, turn main adjustment screw counterclockwise
(right) to lower set point or clockwise (left) to raise set point. Turning the 1/4”
hex screw clockwise until “high set” switch transfers at the target pressure
point provides a pressure rise set point. (See Figure 4).
Low Set of Range
Usinga 1/4”open endwrench, turn“low set”adjustment screw counterclockwise
(right) to lower set point or clockwise (left) to raise set point. Turn screw until
both “high set” and “low set” switches transfer together on or near the target
pressure on rise. Turn the “low set” switch adjustment screw clockwise (left)
until the “low set” switch transfers at the desired pressure on fall (unless
required otherwise). Raise the pressure source to the “high set” pressure
value to check the set point pressure. Adjust the 1/4” hex screw accordingly
if further fine adjustments are needed. Lower pressure to check the set point
of the “low set”. Fine adjust if necessary. (See Figure 4).
Manual Reset Button
Control types with option code 1530 incorporate a snap switch which when
actuated, remains actuated until the pressure drops sufficiently to allow the
reset button (located on top of the control) to be manually depressed to
reset the switch.
Adjustable Differential Models
Control types with option code 1520 incorporate a snap switch with internal
adjustment wheel. Turning this wheel raises or lowers the pressure rise set
point. The fall set point remains constant. Consult factory for additional infor-
mation.
Figure 4
Figure 2
Figure 3
Teflon®is a registered trademark of E. I. Dupont.
(m)

IMP54-05
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Type J54S models 610-614Type J54S models 22-28
Type H54, J54 & J54A models 22-28
Type H54S models 22-28 Type J54 models 610-614
Dimensions
Dimensional drawings for all models may be found at www.ueonline.com.
Type H54, J54, & J54A models 126-164

IMP54-05
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SP07085000
UNITED ELECTRIC
CONTROLS
180 Dexter Avenue, P.O. Box 9143
Watertown, MA 02471-9143 USA
Telephone: [phone] Fax: [phone]
http://www.ueonline.com
RECOMMENDED PRACTICES AND WARNINGS
        
         
         

          



          

 


           
           

 
           
          

            

 

         

 
  


 
LIMITED WARRANTY
           


      
             
          
       
            

         
        
       

LIMITATION OF SELLER’S LIAbILITY
          



           
         


        


UE specifications subject to change without notice.