FlowLine EchoSwitch LU74 Series User manual

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Model: LU74 & LU78
EchoSwitch®II
Quick Start
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 in
accordance with instructions furnished by Flowline 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. Flowline's obligation under this warranty is
solely and exclusively limited to the repair or replacement, at Flowline's option, of the
products or components, which Flowline's examination determines to its satisfaction to
be defective in material or workmanship within the warranty period. Flowline must be
notified pursuant to the instructions below of any claim under this warranty within thirty
(30) days of any claimed lack of conformity of the product. Any product repaired or
replaced under this warranty will be warranted only for the remainder of the original
warranty period.
Returns
Products cannot be returned to Flowline without Flowline's prior authorization. To
return a product that is thought to be defective, go to www.flowline.com, and submit a
customer return (MRA) request form and follow the instructions therein. All warranty
and non-warranty product returns to Flowline must be shipped prepaid and insured.
Flowline will not be responsible for any products lost or damaged in shipment.
Limitations
This warranty does not apply to products which: 1) are beyond the warranty period or
are products for which the original purchaser does not follow the warranty procedures
outlined above; 2) have been subjected to electrical, mechanical or chemical damage
due to improper, accidental or negligent use; 3) have been modified or altered; 4)
anyone other than service personnel authorized by Flowline have attempted to repair;
5) have been involved in accidents or natural disasters; or 6) are damaged during
return shipment to Flowline. Flowline reserves the right to unilaterally waive this
warranty and dispose of any product returned to Flowline where: 1) there is evidence
of a potentially hazardous material present with the product; or 2) the product has
remained unclaimed at Flowline for more than 30 days after Flowline has dutifully
requested disposition. This warranty contains the sole express warranty made by
Flowline in connection with its products. ALL IMPLIED WARRANTIES, INCLUDING
WITHOUT LIMITATION, THE WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, ARE EXPRESSLY DISCLAIMED. The remedies of
repair or replacement as stated above are the exclusive remedies for the breach of
this warranty. IN NO EVENT SHALL FLOWLINE BE LIABLE FOR ANY INCIDENTAL
OR CONSEQUENTIAL DAMAGES OF ANY KIND INCLUDING PERSONAL OR
REAL PROPERTY OR FOR INJURY TO ANY PERSON. THIS WARRANTY
CONSTITUTES THE FINAL, COMPLETE AND EXCLUSIVE STATEMENT OF
WARRANTY TERMS AND NO PERSON IS AUTHORIZED TO MAKE ANY OTHER
WARRANTIES OR REPRESENTATIONS ON BEHALF OF FLOWLINE. This warranty
will be interpreted pursuant to the laws of the State of California. If any portion of this
warranty is held to be invalid or unenforceable for any reason, such finding will not
invalidate any other provision of this warranty.
Technical Support
For complete product documentation, video training, and technical
support, go to www.flowline.com.
For phone support, call 562-598-3015 from 8am to 5pm PST, Mon - Fri.
(Please make sure you have the Part and Serial number available.)
QS300650 Rev.D
©2010 Flowline, Inc.
All Rights Reserved
Made in USA
10500 Humbolt Street, Los Alamitos, CA 90720 USA
Tel: [phone] Fax: [phone] www.flowline.com

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We Do Your Level Best
Thank you for purchasing Flowline’s EchoSwitch®II. The sensor provides integrated
LCD and three push-button configuration. This Quick Start includes everything you’ll
need to get the sensor up and running. For complete information, please refer to
EchoSwitch®II documentation located at www.flowline.com.
Components
Depending on how the sensor model that was shipped, you should have the
EchoSwitch®II and Viton®gasket which are required to install the EchoSwitch®II.
Select Fail Safety Output
In the event the sensor does not receive an echo, the Select Fail Safety Output
setting can be set to turn each relay ON< OFF or HOLD last state to achieve the
desired fail-safe condition. During fail-safe, the display will read LOST.
1) Enter the configuration menu (as discussed previously).
2) Select SAFE from the menu and press SELECT to choose the relay you want to
configure.
3) Select an output option, such as ON, OFF or HOLD.
4) Select EXIT to return to the Configuration menu.
Troubleshooting
If you face any issues not addressed in this quick start, please refer to the
EchoSwitch®II Manual located on Flowline website at www.flowline.com.
Information on how to set a LOW or HIGH alarm, as well as how to FILL or
EMPTY a tank with a pump, can also be found in the EchoSwitch®II Manual
located on Flowline website at www.flowline.com.
EchoSwitch® II
LU74, LU78
Viton®gasket
Part # 200129 (2”)
Welcome to the EchoSwitch®II Quick Start
The EchoSwitch®II Quick Start is meant to show some of the more
common setup solutions to getting the EchoSwitch®II up and running
quickly. If you run into an issue that is not addressed here or wish to
install or set up with a non-standard configuration, please address the
EchoSwitch®II Manual or refer to the Flowline website at
www.flowline.com.

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Riser Mounting
Side Mounting
Empty a Tank with a Pump or Valve
The relays can also be used to empty a tank vessel when the level inside gets too
high. To set the sensor to automatically empty a tank:
1) Enter the configuration menu (as discussed
previously), and press SELECT when the
relay being set appears.
2) Select PUMP from the Menu,
3) Select EMPTY from the Menu,
4) Select ON from the Menu,
5) Using the UP and DOWN buttons, set the
ON set point for the relay. The ON set point
is the level at which the relay begin
emptying the tank. This is the higher of the
two set points. Enter this value by pressing and holding the SELECT button
down for
approximately two seconds, until the display
reads SAVED,
6) Select OFF from the Menu,
7) Using the UP and DOWN buttons, set the OFF set point for the relay. The
OFF set point is the level at which the relay will cease emptying the tank.
This is the lower of the two set points. Enter this value by pressing and
holding the SELECT button down for approximately two seconds.
If you wish to add a delay when the pump starts, continue to step 8. Otherwise, select
EXIT to return to the Configuration Menu.
8) Select DELAY from the Menu,
9) Using the UP and DOWN buttons, set the DELAY time in seconds. This
pump delay can range from 0 to 600 seconds. Enter this value by pressing
and holding the SELECT button down for approximately two seconds, and
10) Select EXIT to return to the Configuration Menu.
Mounting the EchoSwitch®II
The sensor should always be mounted perpendicular to the liquid surface using the
provided Viton®mounting gasket. Insure that there are no restrictions or obstacles in
the path of the ultrasonic signal. Further mounting information can be found on the
Flowline website at www.flowline.com.
Mounting with a Tank Adapter: Select a tank adapter fitting, such as the LM52-
2890.
Mounting with a Riser: As installations with tall, narrow risers can impede the
acoustic signal. 2" diameter risers should be no taller than 4". Larger diameter risers
should be no taller than 12".
Mounting with a Side Mount Bracket: Use Flowline's LM50-1001 side mount
bracket.

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Mounting with a Stand Pipe:
A standpipe may be used to dampen turbulence, separate surface foam from the point
of measurement or increase performance in heavy vapor. When mounting the sensor,
a pipe no bigger than 3” should be used. This should be attached with a coupling and
reducer bushing. The pipe length should run the measurement span and the bottom of
the pipe should remain submerged at all times to prevent foam from entering the pipe.
Cut the bottom end of the pipe at 45° and drill a 1/4”pressure equalization hole high in
the dead band. The pumps should not drive liquid past the open end of the standpipe
which causes the liquid in the pipe to oscillate.
IMPORTANT MOUNTING GUIDELINES:
1) Never mount the sensor at an angle.
2) Liquid should never enter the dead band.
3) Mount at least 3”from the side wall.
4) Never mount in a vacuum.
5) Do not obstruct the sensor’s beam width.
Fill a Tank with a Pump or Valve
The relays can also be used to fill a tank when the level inside drops too low. To set
the sensor to automatically fill a tank:
1) Enter the configuration menu (as discussed
previously), and press SELECT when the
relay being set appears.
2) Select PUMP from the Menu,
3) Select FILL from the Menu,
4) Select ON from the Menu,
5) Using the UP and DOWN buttons, set the
ON set point for the relay. The ON set point
is the level at which the relay will trigger the
refill of the tank. This is the lower of the two
set points. Enter this value by pressing and
holding the SELECT button down for approximately two seconds, until the
display
reads SAVED,
6) Select OFF from the Menu,
7) Using the UP and DOWN buttons, set the OFF set point for the relay. The
OFF set point is the level at which the relay will cease the refill of the tank.
This is the higher of the two set points. Enter this value by pressing and
holding the SELECT button down for approximately two seconds.
If you wish to add a delay when the pump starts, continue to step 8. Otherwise, select
EXIT to return to the Configuration Menu.
8) Select DELAY from the Menu,
9) Using the UP and DOWN buttons, set the DELAY time in seconds. This
pump delay can range from 0 to 600 seconds. Enter this value by pressing
and holding the SELECT button down for approximately two seconds, and
10) Select EXIT to return to the Configuration Menu.
Stand Pipe Mounting

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Set a High Alarm Relay
A high alarm relay will notify you when the tank level
gets too high. To set a high alarm relay:
1) Enter the configuration menu (as discussed
previously), and press SELECT when the
relay being set appears.
2) Select ALARM from the Menu,
3) Select HIGH from the Menu,
4) Using the UP and DOWN buttons, set the
HIGH (ON) set point for the relay. This is the
high point where the alarm will sound. Enter this value by pressing and
holding the SELECT button down for approximately two seconds, until the
display reads SAVED,
5) Select HYSTER from the Menu. HYSTER (or hysteresis) is the distance below
the HIGH (ON) set point that turns off the high alarm relay.
6) Using the UP and DOWN buttons, set the HYSTER (OFF) point, Enter this
value by pressing and holding the SELECT button down for approximately two
seconds, and
7) Select EXIT to return to the Configuration Menu.
Set a Low Alarm Relay
A low alarm relay will notify you when the tank level
gets too low. To set a low alarm relay:
1) Enter the configuration menu (as discussed
previously), and press SELECT when the relay
being set appears.
2) Select ALARM from the Menu,
3) Select LOW from the Menu,
4) Using the UP and DOWN buttons, set the LOW (ON) set point for the relay.
This is the low point where the alarm will sound. Enter this value by pressing
and holding the SELECT button down for approximately two seconds, until the
display reads SAVED,
5) Select HYSTER from the Menu. HYSTER (or hysteresis) is the distance above
the LOW (ON) set point that turns off the low alarm relay,
6) Using the UP and DOWN buttons, set the HYSTER (OFF) point, Enter this
value by pressing and holding the SELECT button down for approximately two
seconds, and
7) Select EXIT to return to the Configuration Menu.
Wiring the EchoSwitch®II
The following wiring diagrams can be used when wiring the EchoSwitch®II.
Some notes on safety:
Where personal safety or significant property damage can occur due to a
spill, the installation must have a redundant backup safety system installed.
Wiring should always be completed by a licensed electrician.
The sensor must be chemically compatible with the application.
Design a fail-safe system for possible sensor and/or power failure.
Never use the sensor in classified hazardous environments.

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Setting Units
Configuring the Sensor
The sensor features non-volatile memory, and can be configured prior to installation.
Your configuration will not be lost when the transmitter is powered down.
Before configuring, be sure to have the following
information:
Height. This is the distance from the transducer
face to the bottom of the tank.
Fill Height (Fill-H). This is the distance from
the highest level of liquid to the bottom of the
tank
Configuration Menu
The sensor is configured with the three button's on the
sensor face (UP, DOWN and SELECT) and the sensor’s
LCD. To access the sensor’s configuration menu, simply
hold down the SELECT button for five seconds or until the
menu is displayed. The display menu will automatically
begin to scroll through the uppermost level of the
configuration menu.
When the menu scrolls to an item you wish to configure, simply press the SELECT
button again when that item appears. Once you've made your configuration changes,
press SELECT again to scroll through the options and once more while RUN appears
in the display. This will return the sensor to its operational mode.
To go up one level, press SELECT when EXIT appears.
Set Units
The EchoSwitch®II displays information
in either inches, feet, centimeters, meters
or percentages. This can also be displayed
to represent the amount of air or liquid in a
tank.
Air Display Mode shows the distance from the
bottom of the sensor to the liquid surface. Liquid Display
mode show the distance from the liquid
surface to the bottom of the tank.
Follow these instructions to set how units are displayed:
1) Enter the Configuration menu (as discussed previously),
2) Select UNITS from the menu,
3) Select the type of unit or the type of DISPLAY you desire, and
4) Select EXIT to return to the Configuration menu.
Set Height and Fill Height
This setting customizes the reading for your installation. Follow these instructions to
set the height and fill height for your tank:
1) Enter the Configuration menu (as discussed previously), and press SELECT
when TANK appears.
2) Select HEIGHT. Use the UP and DOWN buttons to set the height of your
tank. Then, hold down the SELECT button to save this setting.
3) Select FILL-H for the fill height. Use the UP and DOWN buttons to set the fill
height of your tank. Then, hold down the SELECT button to save this setting.
4) Select EXIT to return to the Configuration menu.
The EchoSwitch II®
Interface
Height and Fill Height