
Warranty
Gems Warranty
Gems warrants to the original purchaser of its products that such products will be free from defects in material and
workmanship under normal use and service for a period which is equal to the shorter of one year from the date of
purchase of such products or two years from the date of manufacture of such products.
This warranty covers only those components of the products which are non-moving and not subject to normal wear.
Moreover, products which are modifi ed or altered, and electrical cables which are cut to length during installation are
not covered by this warranty.
Gems’ obligation under this warranty is solely and exclusively limited to the repair or replacement, at Gems’ option, of
the products (or components thereof) which Gems’ examination proves to its satisfaction to be defective. Gems SHALL
HAVE NO OBLIGATION FOR CONSEQUENTIAL DAMAGES TO PERSONAL OR REAL PROPERTY, OR FOR INJURY
TO ANY PERSON.
This warranty does not apply to products which have been subject to improper use, accident, negligence, abuse or misuse.
Abuse shall be assumed when indicated by electrical damage to relays, reed switches or other components. The warranty
does not apply to products which are damaged during shipment back to Gems’ factory or designated service center or
are returned without the original casing on the products. Moreover, this warranty becomes immediately null and void if
anyone other than service personnel authorized by Gems attempts to repair the defective products.
Equipment sold by Gems Sensors Inc. not intended for use in a nuclear installation, nor shall it be used as a “Basic Component” as same as defi ned under Part 21, Title 10 of the Code of Federal Regulations. In the event of such use, you
agree to indemnify and hold us harmless from any and all subsequent liabilities and responsibilities which might arise in
connection with such use.
Return Policy
Returns are accepted on stock items up to 30 days from date of order.
You must contact our Returns Department for a Return Authorization (RA) number. Return the goods – freight prepaid
– in the original container and include original packing slip. C. O. D. returns are not accepted. Gems reserves the right
to apply restocking charges.
Gems further reserves the right to unilaterally waive this warranty and to dispose of any product returned to Gems
where:
a. There is evidence of a potentially hazardous material present with or on the product.
b. The product has remained unclaimed at Gems for longer than 30 days after dutifully requesting disposition of
the product from the Customer.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE OF THIS WARRANTY. This warranty and the obligations and liabilities of Gems under it are exclusive and instead of, and the original
purchaser hereby waives all other remedies, warranties, guarantees or liabilities, express or implied. EXCLUDED FROM
THIS WARRANTY IS THE IMPLIED WARRANTY OF FITNESS OF THE PRODUCTS FOR A PARTICULAR PURPOSE
OR USE AND THE IMPLIED WARRANTY OF MERCHANTABILITY OF THE PRODUCTS.
Important Points:
• Gems products must be maintained and installed in strict accordance with the National Electrical Code and the
applicable Gems product instruction Bulletin that covers installation, operation and proper maintenance. Failure to
observe this information may result in serious injury or damages.
• The supply voltage to the sensor should not exceed 36 VDC, Max.
• Please adhere to the pressure and temperature limitations shown. These limitations must not be exceeded.
These pressures and temperatures take into consideration possible system surge pressures/temperatures and
their frequencies.
• Selection of materials for compatibility with the media is critical to the life and operation of Gems products. Take
care in the proper selection of materials of construction, testing is required.
• Avoid over tightening when mounting.
• Life expectancy of switch contacts varies with application. Contact Gems if life cycle testing is required.
• Ambient temperature changes do affect switch set points, since the gravity of a liquid can vary with temperature.
• Our sensors have been designed to resist shock and vibration. However, shock and vibration should be minimized.
• Electrical entries and mounting points in an enclosed tank may require liquid/vapor sealing.
• Our sensors must not be fi eld-repaired.
• Physical damage sustained by product may render it unserviceable.
This warranty may not be extended, altered or varied except by a written instrument signed by a duly-authorized offi cer
of Gems, Inc.
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© 2007 Gems, Inc.
All Rights Reserved
Made In USA
UCL-510
Part Number 225100
Manual

Level sensing at its best!
Thank you for purchasing Gems new innovative small tank solution. The
UCL-510 is a general purpose sensor that combines switch, controller and
transmitter capabilities for small tanks 49.2” (1.25 m) or less.
Confi guration
UCL-510 is confi gured through Confi guration, a PC software program. Confi guration is a free download from Gems website. You must download and
install Confi guration prior to plugging in the USB® Fob. Please go to http://
www.Gemssensors.com/software.
Confi guration Software
System Requirements
Windows® XP or 2000
10 mB hard drive space
256 mB RAM
1 USB® 2.0 port
Internet connection
Specifi cations
Range:
Accuracy:
Resolution:
Beam width:
Dead band:
Supply voltage:
Loop resistance:
Consumption:
Signal output:
Contact type:
Loop fail-safety:
Relay fail-safety:
Hysteresis:
Configuration:
Temp. comp.:
Process Temp.:
Ambient Temp.:
Pressure:
Enclosure:
Encl. material:
Strain relief mat.:
Trans. material:
Cable length:
Cable jacket mat.:
Process mount:
Mount. gasket:
Classification:
Approvals:
49.2” (1.25 m)
0.125" (3 mm)
0.019" (0.5 mm)
2" (5 cm)
2" (5 cm)
24 VDC (loop)
400Ω max
0.5W
4-20 mA , two-wire
(when loop powered)
(4) SPST relays 1A
4 mA, 20 mA, 21 mA,
22 mA or hold last
Power loss: Hold last
Power on: Open, close
or hold last
Selectable
Software, PC Windows®
USB 2.0
Automatic over range
F: 20˚ to 140˚
C: -7˚ to 60˚
F: -31˚ to 140˚
C: -35˚ to 60˚
MWP = 30 PSI
Type 6P
encapsulated, corrosion
resistant & submersible
PC/ABS FR
Santoprene
PVDF
48” (1.2 m)
Polyurethane
1" NPT (1" G)
Viton®
General purpose
CE, cFMus
Wiring
Dimensions
RoHS
Compliant
Safety
1. Installation should be done by properly trained staff
2. Supply voltage should never exceed a maximum of 24 VDC
3. Always use stepper relays between the sensor and external loads
4. Make sure the sensor is chemically compatible with your application
5. Design a fail-safe system that accommodates the possibility of sensor and/or power failure.
6. This sensor should not be used in classifi ed hazardous environments
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