GENERAL
BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FOR
COMPATIBILITY TO THE PROCESS MEDIA IN CONTACT WITH THE
SENSOR AND WETTED PARTS.
J6 pressure switches are activated when a bellows or piston sensor responds
to a pressure change. This response, at a pre-determined set point, actuates
a single snap-action switch, converting the pressure signal into an electrical
signal. Set point may be varied by turning the internal adjustment screw. (See
Part II – Adjustments).
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 occasionally
subjected, which causes no permanent damage (e.g., start-up, testing). The
unit may require re-gapping.
**Over Range Pressure
The maximum pressure to which a pressure sensor may be continuously
subjected without causing damage and maintaining set point repeatability.
THESE PRODUCTS DO NOT HAVE ANY FIELD REPLACEABLE PARTS.
Please refer to product bulletin for product specifications. UE product bulletins
may be found at www.ueonline.com
Part I - Installation
Tools Needed
-Adjustable wrench
- Phillips head screwdriver
MOUNTING
J6 pressure switches may be mounted and operated in any position. They may
be surface mounted via the two mounting ears on either side of the enclosure,
or mounted directly to a rigid pipe by using the pressure connection.
ALWAYS LOCATE UNITS WHERE SHOCK, VIBRATION AND
TEMPERATURE FLUCTUATIONS ARE MINIMAL. DO NOT MOUNT UNIT
IN AMBIENT TEMPERATURES EXCEEDING PUBLISHED LIMITS.
UNIT MAY BE MOUNTED IN ANY POSITION PROVIDED THE ELECTRICAL
CONDUIT IS NOT FACING UP. THE RECOMMENDED MOUNTING
POSITION IS VERTICAL (PRESSURE CONNECTION FACING DOWN),
SPECIFICALLY WHERE HEAVY CONDENSATION IS EXPECTED.
ALWAYS HOLD A WRENCH ON THE PRESSURE HOUSING
HEX WHEN MOUNTING UNIT. DO NOT TIGHTEN BY TURNING
ENCLOSURE. THIS WILL DAMAGE SENSOR AND WEAKEN
SOLDER OR WELDED JOINTS.
On models supplied with an external manual reset button, be sure to leave
sufficient finger space over the reset button for the operator to reset the
switch.
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 NAMEPLATE
SHOULD NEVER BE EXCEEDED. OVERLOAD ON A SWITCH CAN CAUSE
FAILURE ON THE FIRST CYCLE.
Remove the four screws retaining the cover and cover gasket. A 1/2” NPT
conduit connection is provided on the upper left hand side of the enclosure.
The three switch terminals are clearly labeled common, normally open and
normally closed.
For optional switches supplied with lead wires, the following color coding
applies:
Manual Reset (Option 1530)
SPDT
Common
Violet
Normally Open
Blue
Normally Closed
Black
A threaded grounding boss, tapped #10-32, is provided in the lower left
corner of the enclosure. Keep the wires as short as possible to prevent
interference with the plunger, or the optional manual reset button or
adjustable deadband switch wheel.
6 Series
Pressure Switch
Type J6
IM6-08
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.
IM6-08
