UE ONE Series, Installation & Maintenance Instructions Manual

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1
IM1-02
ONE SERIES
Electronic Pressure and
Temperature Switches
with "I AM WORKING" Signal
UNITED ELECTRIC
CONTROLS
Installation & 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 Warrantees.
GENERAL
One Series electronic switches utilize a ceramic pressure
sensor or 100
Ω
RTD to measure the process variable and
provide local alarm or shutdown actuation along with local
and remote system status indication. A unique IAW™ circuit
provides the local and remote indication of the output status
and the “health” of the product. An internal solid-state
switching device allows for long switch life with no arcing or
contact wear, providing years of reliable operation. The
local process and status indication, as well as a proprietary
remote status signal, provide a clear indication that the One
Series product is functioning properly.
SIMPLE TO USE AS 1, 2, 3…
1.
Mount
the One Series using the process connection or
two mounting ears.
2.
Wire
the One Series using the convenient conduit
connection. Color coded lead wires or optional terminal
block allow field connections to be made in seconds.
3.
Configure
the One Series using the simple four key
keypad and helpful display prompts. Remove cover,
choose an
operating mode, set point and deadband. Replace
cover.
MOUNTING
Tools
1 1/16” wrench for hex fitting
Screwdriver for mounting screws
2 mounting screws (1/4” Max.)
FOR PRESSURE AND LOCAL TEMPERATURE
MODELS ALWAYS HOLD A WRENCH ON THE
HOUSING HEX WHEN MOUNTING UNIT. DO
NOT TIGHTEN BY TURNING ENCLOSURE.
THIS WILL DAMAGE THE CONNECTION BETWEEN
THE SENSOR AND HOUSING.
INSTALL UNITS WHERE SHOCK, VIBRATION
AND TEMPERATURE FLUCTUATIONS ARE
MINIMAL. ORIENT UNIT TO PREVENT
MOISTURE FROM ENTERING ENCLOSURE. IT
IS IMPERATIVE TO USE PROPERLY RATED SEALING
FITTINGS FOR ELECTRICAL WIRE ENTRY. DO NOT
MOUNT UNIT IN AMBIENT TEMPERATURES
EXCEEDING PUBLISHED LIMITS. THIS IS ESPECIALLY
CRITICAL FOR LOCAL MOUNT TEMPERATURE UNITS.
The One Series product may be mounted in any position
providing the electrical conduit connection is not facing up.
See Diagrams 1 and 2. Ensure the process connection is
sealed to the process port to prevent leakage.
Process Connections
PRESSURE MODELS
To pipe mount. Thread the pressure connection onto the
pressure port. Use a wrench on the hex pressure connection
to tighten. Test for leaks. IN HIGH SHOCK AND
VIBRATION APPLICATIONS, DO NOT MOUNT VIA THE
PRESSURE CONNECTION ONLY.
LOCAL TEMPERATURE MODELS
For immersion sensing. Use of a thermowell is highly
recommended to aid in maintenance, testing and
preservation of the system integrity. Insert the sensor
housing (0.25 diameter) into the well, insuring that the
housing bottoms out and will be completely immersed in the
media (1.5” min.). Secure the sensor using an appropriately
sized compression fitting. Test for leaks. IN HIGH SHOCK
AND VIBRATION APPLICATIONS, DO NOT MOUNT VIA
THE PROCESS CONNECTION ONLY.
For ambient sensing. Mount using the mounting ears on the
electronics housing. Mount the product to ensure that the
sensor housing will not be damaged and where the
measured temperature is representative of the surrounding
environment.
REMOTE TEMPERATURE MODELS
For surface sensing. Secure the 2½” sensor housing to the
pipe or vessel using an adhesive or strapping method
suitable for the application.
For immersion sensing. Use of a thermowell is highly
recommended to aid in maintenance, testing and
preservation of the system integrity. Insert the sensor
housing (0.25 diameter) into the well ensuring that the
housing bottoms out and will be completely immersed in the
media (2.5” min.) Secure the sensor using an appropriately
sized union connector. Test for leaks.
For best temperature measurements, the sensor housing
must be in full contact with the surface or media being
measured. Locate where the temperature is most
representative of the system. Minimum insertion depth is
2½”.