A. Application:
The general-purpose ultrasonic transmitter pro-
vides non-contact level detection up to 26.2' or 8 m. The transmitter
is well suited for a wide range of corrosive, waste and slurry type
media, and is broadly selected for atmospheric bulk storage, day tank
and waste sump applications.
B. Part Number:
The part and serial numbers are located on the
wrench flat. Check the part number on the product label and confirm
which of the below model configurations you have purchased:
Part Number
Range
Supply
Mount
UCL-520
26.2’ (8 m)
12-28 VDC
2” NPT
C. NEMA 4X Enclosure:
The NEMA 4X (IP65) enclosure has
a flip cover with two 1/2” NPT female conduit ports and an internal
terminal strip for wiring. To open the enclosure, you will need a small
small screwdriver. Insert the tool into the hole located at the top edge
of the enclosure and turn counter-clockwide. Rotate the hinged cover
up for 135° access to the faceplate screen and terminal strip.
Step Two
SAFETY
Step Three
OVERVIEW
About this Manual:
PLEASE READ THE ENTIRE MANUAL
PRIOR TO INSTALLING OR USING THIS PRODUCT. This
manual includes information on the UCL-520 Ultrasonic Level
Transmitter from Gems. Please refer to the part number located on
the transmitter label to verify the exact model configuration which
you have purchased.
User’s Responsibility for Safety:
Gems manufactures a
broad range of level sensing technologies. While each of these sen-
sors 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 properly trained
staff should install and/or repair this product. Install the transmitter
with the Viton gasket and never overtighten the transmitter within
the fitting. Always check for leaks prior to system start-up.
Wiring and Electrical:
A supply voltage (loop power) of 12
-28 VDC is used to power the UCL-520 transmitter. The sensor
circuit should never exceed a maximum of 28 volts DC. Electrical
wiring of the sensor should be performed in accordance with all
applicable national, state, and local codes.
Material Compatibility:
The UCL-520 transmitter enclosure
is made of a flame retardant Polycarbonate (PC/ABS FR). The
transducer is made of Polyvinylidene Fluoride (PVDF). Make sure
that the model which you have selected is chemically compatible
with the application media and it’s environment.
Enclosure:
While the transmitter housing is liquid-resistant the
UCL-520 transmitter 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.
Make a Fail-Safe System:
Design a fail-safe system that
accommodates the possibility of transmitter and/or power failure.
Gems recommends the use of redundant backup systems and
alarms in addition to the primary system.
Flammable, Explosive or Hazardous Applications:
Do not use the UCL-520 transmitter of general purpose transmit-
ters within classified hazardous environments.
Warning
Always use the Viton gasket when installing the UCL-520 trans-
mitter in its fitting, and always connect the shield wire to the
common ground.
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 technicians 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.
Before closing the enclosure, make sure that the enclosure gasket is
properly seated, and that any conduit fittings, liquid tight cable con-
nectors and/or plugs are properly installed and sealed.
Closed
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