Omega LVU-700, Руководство пользователя

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8
Introduction
(continued)
Step One
About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS
PRODUCT. This manual includes information on the LVU700 series Ultrasonic Level Transmitter from
OMEGA ENGINEERING. Please refer to the part number located on the switch label to verify the exact model
configuration, which you have purchased.
User’s Responsibility for Safety: OMEGA ENGINEERING manufactures a broad range of level sensing
technologies. While each of these sensors is designed to operate in a wide variety of applications, it is the
user’s responsibility to select a sensor model that is appropriate for the application, install it properly, perform
tests of the installed system, and maintain all components. The failure to do so could result in property
damage or serious injury.
Proper Installation and Handling: Only professional staff should install and/or repair this product. Never
over tighten the sensor within the fitting. Always check for leaks prior to system start-up.
Wiring and Electrical: A supply voltage of 14 to 28 VDC is used to power the LVU700 series. Electrical
wiring of the transmitter should be performed in accordance with all applicable national, state, and local codes.
Material Compatibility: The enclosure is made of Polypropylene (PP). The transducer is made of
Polyvinylidene Fluoride (PVDF). Make sure that the model, which you have selected, is chemically compatible
with the application media.
Enclosure: While the sensor housing is liquid-resistant the LVU700 series is not designed to be
operational when immersed. It should be mounted in such a way that the enclosure and transducer do not
come into contact with the application media under normal operational conditions.
Handling Static-Sensitive Circuits/Devices: When handling the transmitter, the technician should follow
these guidelines to reduce any possible electrostatic charge build-up on the technician’s body and the
electronic part.
1. Always touch a known good ground source before handling the part. This should be repeated while
handling the part and more frequently after sitting down from a standing position, sliding across the seat
or walking a distance.
2. Avoid touching electrical terminals of the part unless making connections.
3. DO NOT open the unit cover until it is time to calibrate.
Make a Fail-Safe System: Design a fail-safe system that accommodates the possibility of switch and/or
power failure. OMEGA ENGINEERING recommends the use of redundant backup systems and alarms in
addition to the primary system.
Flammable, Explosive or Hazardous Applications:
LVU700 series should not be used within classified hazardous environments.
Warning: Always use the FKM gasket when installing “G” threaded versions of LVU700 series.
Warning: Make sure that all electrical wiring of the switch is in accordance with applicable codes.