FlowLine EchoSwitch LU71 Owner'S Manual Download Page 1

Warranty, Service & Repair

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

HA VE NO

OBLIGA TION FOR CONSEQUENTIAL

DAMAGES T

O PERSON-

ALOR 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.

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 waive 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 

W ARRANTIES 

WHICH EXTEND BEYOND

THE DESCRIPTION 

ON THE F

ACE OF THIS W

ARRANTY . 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 

W ARRANTY

IS THE IMPLIED

W ARRANTY

OF FITNESS OF THE PRODUCTS FOR 

AP

ARTIC-

ULAR PURPOSE OR USE AND 

THE IMPLIED W

ARRANTYOF

MERCHANTABILITY

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.

To register your product with the manufacturer, go to the Flowline
website for on-line registration.  The website address is as follows:

www.flowline.com

On-line Warranty Registration can be found under Contact Us in
the Navigation Bar along the side of the home page. 

If for some reason your product must be returned for factory ser-
vice, contact Flowline Inc. at (562)598-3015 to receive a Material
Return Authorization number (MRA), 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.

®

EchoSwitch Multi-Point
Ultrasonic Level Switch
Model LU71/72/73/75
Owner’s Manual

Version 2.1.5
© 2004 FLOWLINE Inc.
All rights reserved.
Manual # LU900014 - 0411-LU72M2_1_5

Summary of Contents for EchoSwitch LU71

Page 1: ...se 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...

Page 2: ...safety De energizes during echo signal loss Process temp F 4 to 140 C 20 to 60 Temp comp Automatic Electronics temp F 40 to 160 C 40 to 71 Pressure 30 psi 2 bar 25 C derated 1 667 psi 113 bar per C ab...

Page 3: ...l Switch from FLOWLINE 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 FLOWLINE manufac tu...

Page 4: ...nergize set point both relays will energize until the level reaches the de energize set point Alternation will automati cally fill or empty the tank with two pumps switching after each cycle PREPARATI...

Page 5: ...olid you may either re pro gram the channel with new set points or leave it inactive PROGRAMMING Set Point Calibration Box Insert Table Target Wall Tape Distance Set Point Cal Run High Low Select Echo...

Page 6: ...Low Level Out of Bounds Alarm Programming High Set Point Distance Low Set Point Distance Energize Energize De energize Out of Bounds D Programming Automatic Fill After having powered the switch with...

Page 7: ...Eleven PROGRAMMING Programming Duplexing Pump Control After having pow ered the switch with the appropriate supply voltage entered the CAL mode selected relay channel 1 and erased any previously inpu...

Page 8: ...process conditions prior to system start up Gasket Flange on Riser Height Inner Diameter Riser Bracket Stand Pipe Dead Band Ventilation Hole Operational Range Highest Liquid Level Lowest Liquid Level...

Page 9: ...acoustic signal strength Read the Maximum Applied Range Step 4 E and consider rein stalling the switch in a Stand Pipe Step 11 A 4 to dampen turbulence and or separate the point of measurement from s...

Page 10: ...ackup Primary Stop Duplexing Control Operation Alternating Control Operation OPERATION Step Sixteen Relay X Energize De Energize Start Stop Automatic Empty Operation Automatic Fill Operation Out of Bo...

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