FlowLine LU20 Owner's Manual

FlowLine LU20 Owner's Manual

Ultrasonic level transmitter

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Warranty, Service & Repair
To register your product with the manufacturer, fill out the enclosed
warranty card and return it immediately to:
Flowline Inc.
10500 Humbolt Street
Los Alamitos, CA 90720.
If for some reason your product must be returned for factory service,
contact Flowline Inc. to receive a Material Return Authorization
number (MRA) first, providing the following information:
1. Part Number, Serial Number
2. Name and telephone number of someone who can answer
technical questions related to the product and its application.
3. Return Shipping Address
4. Brief Description of the Symptom
5. Brief Description of the Application
Once you have received a Material Return Authorization number,
ship the product prepaid in its original packing to:
Flowline Factory Service
MRA _____
10500 Humbolt Street
Los Alamitos, CA 90720
To avoid delays in processing your repair, write the MRA on the
shipping label. Please include the information about the malfunc-
tion with your product. This information enables our service tech-
nicians to process your repair order as quickly as possible.
WARRANTY
Flowline 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 modified or altered, and electrical cables which are cut to
length during installation are not covered by this warranty.
Flowline's obligation under this warranty is solely and exclusively
limited to the repair or replacement, at Flowline's option, of the prod-
ucts (or components thereof) which Flowline's examination proves to
its satisfaction to be defective. FLOWLINE SHALL HAVE NO
OBLIGATION FOR CONSEQUENTIAL DAMAGES TO PERSON-
AL OR REAL PROPERTY, OR FOR INJURY TO ANY PERSON.
This warranty does not apply to products which have been subject to
electrical or chemical damage due to improper use, accident, negli-
gence, 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 ship-
ment back to Flowline's 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 ser-
vice personnel authorized by Flowline attempts to repair the defective
products.
Ultrasonic Level Transmitter
Model LU20

Owners Manual

NRTL/C
Version 3.0A
© 1999 FLOWLINE Inc.
All rights reserved.
Manual # LU900005
Products which are thought to be defective must be shipped prepaid
and insured to Flowline's factory or a designated service center (the
identity and address of which will be provided upon request) within
30 days of the discovery of the defect. Such defective products must
be accompanied by proof of the date of purchase.
Flowline further reserves the right to unilaterally wave this warranty
and to dispose of any product returned to Flowline where:
a. There is evidence of a potentially hazardous material present
with product.
b. The product has remained unclaimed at Flowline for longer than
30 days after dutifully requesting disposition of the product.
THERE ARE NO WARRANTIES WHICH EXTEND BEYOND
THE DESCRIPTION ON THE FACE OF THIS WARRANTY. This
warranty and the obligations and liabilities of Flowline 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 PARTIC-
ULAR PURPOSE OR USE AND THE IMPLIED WARRANTY OF
MERCHANT ABILITY OF THE PRODUCTS.
This warranty may not be extended, altered or varied except by a writ-
ten instrument signed by a duly-authorized officer of Flowline, Inc.
File Name: Flowline_Transmitter_LU20_om_D499
4/99
®

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Summary of Contents for FlowLine LU20

  • Page 1: Owners Manual

    Flowline’s obligation under this warranty is solely and exclusively 30 days after dutifully requesting disposition of the product. limited to the repair or replacement, at Flowline’s option, of the prod- ucts (or components thereof) which Flowline’s examination proves to THERE ARE NO WARRANTIES WHICH EXTEND BEYOND its satisfaction to be defective.
  • Page 2: Specifications

    Acceptable Acceptable Range Range Warning The LU20 is a loop powered device. The load should never exceed 900 Ohms. Operating Voltage (VDC) Operating Voltage (VDC) LU20-50_1-IS must be installed in accordance with drawing Flowline 4 or 20 mA Flowline 4 or 20 mA...
  • Page 3: Safety Precautions

    LU20-50_1-IS. The sensor systems should never exceed a maxi- second. In the [SLOW] mode, the LU20 will average signal returns mum of 36 VDC for the LU20-50_1 and 32 VDC for the LU20- over the preceding 10 seconds. When used with [SAF 1/2/3], the time 50_1-IS.
  • Page 4 Step Four Step Five EC4: The LU20-50_1 requires 12-36 VDC power with at least 25 mA sup- ply in order to operate. 1. Hold [MENU] key until EC4 appears in display. 2. Release [MENU] key and wait until a value appears. This value is 1.
  • Page 5 3. Wiring to a Two-Wire Loop Indicator Maximum Application Range HAZARDOUS NON-HAZARDOUS The maximum range of LU20 is 18 feet at 110 dB. Under less than LOCATION LOCATION ideal conditions, a number of factors can reduce the overall quality of...
  • Page 6: Troubleshooting

    If the output of the LU20 is always reading 4 mA or 20 mA, check the input values for the LU20.

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