IMP54 08
1
54 Series
Pressure Switches
Types:
Enclosed: J54, J54A, H54
Skeleton: J54S, J54AS, H54S
DUAL SEAL
CERTIFIED
Installation and Operation Instructions
Please read all instructional literature carefully and thoroughly before starting.
Refer to the final page for the Warranty.
GENERAL
MISUSE OF THIS PRODUCT MAY CAUSE DAMAGE TO
EQUIPMENT OR PERSONAL INJURY. THESE INSTRUCTIONS
MUST BE THOROUGHLY READ AND UNDERSTOOD BEFORE
DEVICE IS INSTALLED.
PRIOR TO INSTALLATION, CHECK THE WETTED PARTS
MATERIAL FOR COMPATIBILITY TO THE PROCESS MEDIA.
54 Series pressure switches are activated when a
bellows, diaphragm or piston sensor responds to a
pressure change. This response, at a predetermined
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 LISTED ON NAMEPLATE
MUST NEVER BE EXCEEDED, EVEN BY SURGES IN THE
SYSTEM. OCCASIONAL OPERATION OF UNIT UP TO PROOF
PRESSURE IS ACCEPTABLE, E.G., START-UP AND TESTING.
EXCESSIVE CYCLING AT MAXIMUM PRESSURE LIMIT COULD
REDUCE SENSOR LIFE. CONTINUOUS OPERATION SHOULD
NOT EXCEED THE DESIGNATED OVER RANGE **.
* Proof Pressure - the maximum pressure to which a pressure
sensor may be occasionally subjected, which causes no permanent
damage (e.g., start-up, testing). The unit may require re-gapping
(consult factory for re-gapping procedure).
** Over Range Pressure - the maximum pressure to which a pressure
sensor may be continuously subjected without causing damage and
maintaining set point repeatability.
THIS PRODUCT DOES NOT HAVE ANY FIELD REPLACEABLE
PARTS. ANY SUBSTITUTION OF COMPONENTS SHALL
INVALIDATE AGENCY CERTIFICATION(S).
DEVICE MUST NOT BE ALTERED OR MODIFIED AFTER
SHIPMENT. CONSULT UE IF MODIFICATION IS NECESSARY.
Please refer to product datasheet at www.ueonline.com
for product specifi cations.
Part I - Installation
Mounting
•
Adjustable Wrench
•
Screwdriver
INSTALL DEVICE WHERE SHOCK, VIBRATION AND
TEMPERATURE FLUCTUATIONS ARE MINIMAL. DO NOT
INSTALL DEVICE IN AMBIENT TEMPERATURES THAT EXCEED
PUBLISHED LIMITS ON THE NAMEPLATE.
DEVICE SHOULD BE MOUNTED TO PREVENT MOISTURE
FROM ENTERING THE ENCLOSURE. VERTICAL MOUNTING IS
RECOMMENDED.
CONSIDER THE USE OF A PRESSURE SNUBBER IF SEVERE
PRESSURE SURGES ARE EXPECTED.
FOR PRESSURE MODELS, MOUNT VIA PRESSURE CONNECTION.
ALWAYS USE A WRENCH ON PRESSURE CONNECTION HEX (SEE
FIGURE 1). DO NOT TIGHTEN BY TURNING THE ENCLOSURE AS
THIS WILL DAMAGE THE SENSOR AND WEAKEN WELDED JOINTS.
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 (see Figure 1 for J54, J54AS
& H54S. See Dimensions page for J54, J54A & H54).
Wiring
DISCONNECT ALL SUPPLY CIRCUITS BEFORE WIRING DEVICE.
WIRE DEVICE IN ACCORDANCE WITH LOCAL AND NATIONAL
ELECTRICAL CODES. MAXIMUM RECOMMENDED WIRE SIZE
IS 14 AWG AND RECOMMENDED TIGHTENING TORQUE FOR
FIELD WIRING TERMINALS IS 7 TO 17 IN-LBS.
DO NOT EXCEED ELECTRICAL RATINGS LISTED ON
NAMEPLATE. OVERLOAD ON A SWITCH CAN CAUSE
FAILURE EVEN ON THE FIRST CYCLE.
