United Electric Controls ONE Series, Инструкция по установке и обслуживанию

Страница: 6 / 32

$
IN HIGH SHOCK AND VIBRATION APPLICATIONS, SECURE THE ENCLOSURE AS DETAILED
BELOW. DO NOT MOUNT VIA THE PROCESS CONNECTION ONLY.
The One Series product may be mounted in any position providing the electrical conduit
connection is not facing up. See Diagrams 1 and 2 on pg. 24/25. Ensure the process connection
is sealed to the process port to prevent leakage.
Electronics Housing
For products beginning with D1A, D1B & D1C, mount the unit using the two (2)¼" clearance holes
in the mounting ears. Plumb sensor to the process port.
For products beginning with D1D - Mount the unit to a flat surface using the 1/4" diameter bolt
holes shown in Diagram 3 (pg. 25). Maximum diameter of the screw head is 0.285”. Attach
conduits to insure a water proof NEMA 4X system. Conduit fitting should be sealed if condensation
or water entry is a possibility.
Process Connections
PRESSURE AND DIFFERENTIAL PRESSURE MODELS
To pipe mount. Thread the pressure connection onto the pressure port. Use a wrench on the hex
pressure connection to tighten. For differential pressure models (dry only), connect to 1/4"-18 NPT
fitting or use barb fitting kit #62169-19 (2 required). Test for leaks. IN HIGH SHOCK AND VIBRATION
APPLICATIONS, SECURE THE ENCLOSURE AS DETAILED ABOVE. DO NOT MOUNT VIA THE PRESSURE
CONNECTION ONLY.
LOCAL AND REMOTE TEMPERATURE MODELS
For surface sensing (models H & R): Secure the 2½" sensor housing to the pipe or vessel using
an adhesive or strapping method suitable for the application.
For immersion sensing (models L, H or R): 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 compression fitting or union connector.
For ambient sensing (model L): 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.
For best temperature measurements, the sensor housing must be in full contact with the surface
or media being measured. Heat transfer compound may be used to aid in fully transferring the
media temperature to the sensor housing. Locate where the temperature is most representative
of the system. Minimum insertion depth is 2½".
For remote sensors, route the extension wire to avoid contact with live components. Avoid kinks,
or excessive flexing.