Gems Sensors & Controls UCL-520 Owner's Manual

Two-wire ultrasonic level transmitter

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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 manufac-
ture 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
modified 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 defined
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.
Warranty, Service & Repair
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 li-
abilities 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 Bul-
letin 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 field-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 officer of Gems, Inc.
UCL-520 Two-Wire
Ultrasonic Level Transmitter
Owner's Manual
Part Number 225200
IP
67
Version C
© 2008 Gems Inc.
All rights reserved.
Manual # 226009

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Summary of Contents for Gems Sensors & Controls UCL-520

  • Page 1 UCL-520 Two-Wire This warranty covers only those components of the products which are non-moving and not subject to normal wear. Moreover, products which are...
  • Page 2: Specifications

    SPECIFICATIONS Step One Side View Range: 8” to 26.2’ (20 cm to 8 m) 5.2” (133mm) Accuracy: +/- 0.2% of span in air Resolution: 0.039" (1 mm) Beam width: 3” (7.6 cm) dia. Dead band: 8” (20 cm) Display type: LCD, 6-digit Display units: Inch, cm or percentage...
  • Page 3: Material Compatibility

    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.
  • Page 4: Menu Items

    4 mA units of air or units of liquid. Factory default is units of air. 26.2' or 8 m, the UCL-520 should be calibrated with 4 mA at it’s H. TANK: Menu through which the 4-20 mA span is adjusted.
  • Page 5 V. DIAG (Diagnostics): Allows the user to view the present val- Note: When PROG mode is active, the UCL-520 will hold the ues of LEVEL, TEMP, ECHO, POWER, MOUNT and VER. last current value. The value will not change until the transmit- W.
  • Page 6 Factory default is the same as the unit’s maximum range. height of 100” will display 40.0, which represents 40.0” of air in Example UCL-520 = 314” maximum range which is also the same the AIR Mode. In the Liquid Mode, the display will change to 4 mA set point under factory default.
  • Page 7 PROGRAMMING PROGRAMMING Step Ten Step Eleven I. Programming REV mA (Optional): In factory default, the G. Programming HEIGHT: To change HEIGHT 4 mA value. SELECT FAST SELECT SELECT 20 mA 4 mA FAST FAST DOWN 4 mA 20 mA 1. Press the SELECT/FAST button and hold it for 5 seconds until Normal mA Mode Reverse mA Mode PROG appears.
  • Page 8 PROGRAMMING PROGRAMMING Step Twelve Step Thirteen J. Programming SAFE Mode: L. Programming TG CAL EMPTY Tank: To change SAFE mode. With the tank EMPTY or the liquid in a low level state, apply power to the transmit- SELECT ter. Begin programming after WARMUP. FAST SELECT FAST...
  • Page 9: Installation

    INSTALLATION WIRING Step Fourteen Step Fifteen A. Wiring to a Typical Two-Wire Loop Powered Indicator Do not install at Do not install DC Power angle relative within 3” of Supply to the liquid tank side wall SHIELD 12-28 VDC B. Wiring to a Typical PLC Do not install Do not install DC Power...
  • Page 10: Troubleshooting

    D. Testing the Transmitter B. Viewing DIAGNOSTICS: Factory Set Points SELECT Transmitter 4 mA Setting 20 mA Setting FAST UCL-520 26.2’ (8m) 8” (20 cm) SELECT 1. Connect a multi-meter in transmitter with the black wire to read FAST the current output. SELECT 2.

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