LU77_78 Instruction Manual

LU77_78 Instruction Manual
EchoSwitch II
Manual – MN300650
09 JULY 08
Revision A
Flowline Inc.
10500 Humbolt Street
Los Alamitos, CA 90720
Tel: (562) 598-3015
Fax: (562) 431-8507
www.flowline.com
09 JUL 08
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Preface
This manual explains how to use the EchoSwitch II, LU77 and LU78 series controller.
Warranty, Service & Repair
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 service, go to the Flowline website
to receive a Material Return Authorization number (MRA), providing the following information:
1. Full Part Number, Full 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
On-line Material Return Authorization can be found under Contact Us in the Navigation Bar
along the side of the home page. Click on Return Authorization to begin the MRA request.
Once you have received a MRA 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 malfunction with your product. This information enables our service
technicians to process your repair order as quickly as possible.
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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 hare 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 products (or components thereof) which Flowline’s
examination proves to its satisfaction to be defective. FLOWLINE 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 electrical or chemical
damage due 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 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 service 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 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
PARTICULAR PURPOSE OR USE AND THE IMPLIED WARRANTY OF
MERCHANTABILITY OF THE PRODUCTS.
This warranty may not be extended, altered or varied except by a written instrument signed by a
duly-authorized officer of Flowline, Inc.
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Introduction:
The EchoSwitch II is a general-purpose ultrasonic level switch that provides the end user the
ability to control up to three unique devices (pump, valves and/or alarms) through an advanced
non-contact technology. EchoSwitch II features push button configuration that uses real
engineering values for setting up the relay operation(s). Each relay is a SPDT Form “C” contact
rated at 60 VA, 1A max and can be sued as an alarm set point (1 level for ON and Hysteresis) or
as pump or valve set points (1 level for ON and a separate level for OFF).
New Features
• Simple digital push button configuration, no more target calibration.
• Pump simplex, duplex and triplex option.
• Integrated timer for pump / valve delay and pump alternation.
• Available in a 2.5m (8.2’) or 7.5m (24.6’) maximum range.
Table of Contents
Introduction ............................................................................................................................5
About this manual ......................................................................................................................6
Specifications ............................................................................................................................8
Dimensions ............................................................................................................................8
Getting Started ...........................................................................................................................9
Getting Around ............................................................................................................10
Feature Guide ...............................................................................................................13
How to enter the MENU ..............................................................................................14
How to configure Units ................................................................................................14
How to configure the operational range.......................................................................15
How to set a HIGH Alarm ...........................................................................................16
How to set a LOW Alarm ............................................................................................17
How to FILL with a Pump ...........................................................................................18
How to EMPTY with a Pump ......................................................................................19
How to FILL with a Valve ...........................................................................................20
How to EMPTY with a Valve ......................................................................................21
How to Duplex .............................................................................................................22
How to Triplex .............................................................................................................22
How to Turn OFF M-PLEX.........................................................................................23
How to TIME Alternate ...............................................................................................22
Electrical
..........................................................................................................................25
Input Power ..................................................................................................................25
Relay Connection .........................................................................................................25
Installation
..........................................................................................................................27
Fitting Selection ...........................................................................................................27
Appendix
..........................................................................................................................31
SETUP .........................................................................................................................31
Reset ..........................................................................................................................31
Simulation Mode..........................................................................................................32
Test parameters ............................................................................................................32
Troubleshooting ...........................................................................................................33
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About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR
USING THIS PRODUCT. This manual includes information on the EchoSwitch II series
Ultrasonic Level 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 manufactures a broad range of level sensing
technologies. While each of these sensors is designed to operate in a wide variety of applications,
it is the user’s responsibility to select a sensor model that is appropriate for the application,
install it properly, perform tests of the installed system, and maintain all components. The failure
to do so could result in property damage or serious injury.
Proper Installation and Handling: Only properly trained staff should install and/or repair this
product. Install the switch with the included Viton gasket and never over tighten the switch
within the fitting. Always check for leaks prior to system start-up.
Wiring and Electrical: A supply voltage of 95-250 VAC is used to power the EchoSwitch II.
Electrical wiring of the switch should be performed in accordance with all applicable national,
state, and local codes.
Material Compatibility: The enclosure is made of Polycarbonate (PC). The transducer is made
of Polyvinylidene Fluoride (PVDF). Make sure that the model, which you have selected, is
chemically compatible with the application media.
Enclosure: While the switch housing is liquid-resistant the EchoSwitch II is not designed to be
operational when immersed. It should be mounted in such a way that the enclosure and
transducer do not come into contact with the application media under normal operational
conditions.
The enclosure has a flip cover with dual 1/2” NPT female conduit ports and an internal terminal
strip for wiring. To open the enclosure, you will need a small insertion tool such as a
screwdriver. Loosen the locking screw located at the top front of the enclosure. Rotate the
hinged cover up for 135° access to the faceplate and terminal strips. Before closing the
enclosure, make sure that the enclosure gasket is properly seated, and that any conduit fittings,
cable connectors or plugs are installed correctly and sealed.
Handling Static-Sensitive Circuits/Devices: When handling the transmitter, the technician
should follow these guidelines to reduce any possible electrostatic charge build-up on the
technician’s body and the electronic part.
1. Always touch a known good ground source before handling the part. This should be
repeated while handling the part and more frequently after sitting down from a standing
position, sliding across the seat or walking a distance.
2. Avoid touching electrical terminals of the part unless making connections.
3. DO NOT open the unit cover until it is time to calibrate.
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Make a Fail-Safe System: Design a fail-safe system that accommodates the possibility of
switch and/or power failure. FLOWLINE recommends the use of redundant backup systems and
alarms in addition to the primary system.
The switch has (3) relay channels. Each relay is a SPDT (single pole, double throw) type rated at
60 VA, 1A Max. Normally open (NO) or normally closed (NC) operation is user selected based
on the desired system control and fail-safe logic. Always design a fail-safe system that
accommodates for the possibility of relay and/or power failure. The "normal" relay state is
where the relay coil is de-energized and the Red relay LED is OFF. Therefore, if power is cut
OFF to the switch it will de-energize the relay. Make sure that the de-energized state is the safe
state in your system design. As such, if switch power is lost, a pump will turn OFF if it is
connected to the normally open side of the relay.
Flammable, Explosive or Hazardous Applications: EchoSwitch II should not be used within
classified hazardous environments.
Warning: Always use the Viton gasket when installing the EchoSwitch II, and make sure that all
electrical wiring of the switch is in accordance with applicable codes.
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Specifications:
Range:
LU77: 4" to 8.2'
(10 cm to 2.5m)
LU78: 8" to 24.6'
(20 cm to 7.5m)
Repeatability:
0.25" (6.35 mm)
Effective Beam width: 3" (7.6 cm) dia.
Dead band:
LU77: 4” (10 cm)
LU78: 8” (20 cm)
LCD indication:
Level and relay
status
Configuration:
Push button, digital
(3)
Supply voltage:
95-250 VAC
Contact type:
(3) SPDT relays
Contact rating:
60 VA, 1A max
Contact fail-safety:
Programmable /
selectable
Temp. comp.:
Electronics temp.:
Pressure:
Enclosure rating:
Enclosure vent:
Encl. material:
Encl. hardware:
Trans. material:
Process mount:
Mount. gasket:
Conduit entrance:
Classification:
Compliance:
Approvals:
Automatic
F: -40° to 140°
C: -40° to 60°
MWP = 30 PSI
NEMA 4X (IP65)
Water tight
membrane
Polycarbonate
Brass and stainless
PVDF
2” NPT (2” G)
Viton®
Dual, 1/2” NPT
General purpose
RoHS
CE
Dimensions:
Side View / LU77 Series
Top View / All Models
Side View / LU78 Series
Rear View / All Models
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Getting Started:
EchoSwitch II can be configured before installation. The switch features non-volatile memory,
so the set points configured before installation will not be lost when the switch is powered down.
To start, all you need is the following information:
• Basic Tank Information
o HEIGHT – Distance from the
transducer face to the bottom of the
tank.
o FILL-H – Maximum fill height of
the liquid from the bottom of the
tank.
• Set Points:
o You will need the measured
distance from the bottom of the
tank to each set point. These values
will all be in the same distance
value (inches, centimeters, feet or
meters) and will all be measured
from the bottom of the tank.
• Power:
o Provide input power to the
EchoSwitch II.
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Getting around:
EchoSwitch II is configured by the use of three push buttons (UP, DOWN and SELECT) and a
LCD display. As a lockout feature, the buttons are inactive until the SELECT button is held
down for 5 seconds, and then the display will begin to scroll through the top level of the
configuration menu.
Top Level
• The Configuration menu will continue to scroll through the items below until the SELECT
button is pressed.
• UNITS – TANK – RELAY 1 – RELAY 2 – RELAY 3 – SAFE – (MPLEX) - HELP RUN
• To return to the Operational mode of EchoSwitch, press SELECT while RUN appears in the
display.
• UNITS – Allows end user to select the units for configuration and operation. Select between
Inches, Centimeters, Feet, Meters or Percent. Press EXIT to return to the Top Level menu.
• TANK – Allows the end user to configure the operational range for the switch.
o HEIGHT – Distance from the transducer face to the bottom of the tank.
o FILL-H – Maximum fill height of the liquid from the bottom of the tank.
o Press Exit to return to the Top level Menu
o Note: if UNITS is set to Percent, then TANK will not appear. To view TANK, set
UNITS to any of the following: Inches, Centimeters, Feet or Meters
• RELAY 1, 2 or 3 – Allows end user to configure the function and operation of each relay.
Each relay has a small black circle that appears when the relay is energized. When the relay
is de-energized, the black circle disappears.
o PUMP – Pump operation allows for two separate level set points (Relay ON and
Relay OFF). Choose between the EMPTY or FILL operation. Both operations
require setting a level for ON and another level for OFF
ƒ EMPTY – used to control a pump that empties a tank.
Typically, Relay ON is the HIGH set point and Relay OFF the LOW set point.
Relay will energize at the high set point (ON) and remain on until the level
reaches the low set point (OFF) and will remain off until the level returns to
the high set point (ON).
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ƒ
FILL – used to control a pump that fills a tank.
Typically, Relay ON is the LOW set point and Relay OFF the HIGH set point.
Relay will energize at the low set point (ON) and remain on until the level
reaches the high set point (OFF) and will remain off until the level returns to
the low set point (ON).
ƒ DELAY – used as a start pump delay when the ON setting is reached. The
delay pump (in seconds) will delay the start of the value for this period.
o VALVE – Valve operation allows for two separate level set points (Relay ON and
Relay OFF). Choose between the EMPTY or FILL operation. Both operations
require setting a level for ON and another level for OFF
ƒ EMPTY – used to control a valve that empties a tank.
ƒ
ƒ
ƒ
09 JUL 08
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Typically, Relay ON is the HIGH set point and Relay OFF the LOW set point.
Relay will energize at the high set point (ON) and remain on until the level
reaches the low set point (OFF) and will remain off until the level returns to
the high set point (ON).
FILL – used to control a valve that fills a tank.
Typically, Relay ON is the LOW set point and Relay OFF the HIGH set point.
Relay will energize at the low set point (ON) and remain on until the level
reaches the high set point (OFF) and will remain off until the level returns to
the low set point (ON).
DELAY – used as a start valve delay when the ON setting is reached. The
delay value (in seconds) will delay the start of the value for this period.
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o ALARM – Alarm operation allows for a single set point (Relay ON and OFF at the
same level). Choose between HIGH and LOW operation. Both operations will
require a single set point and a setting for the Hysteresis (HYSTER)
ƒ
•
•
•
•
HIGH – used to control a High Level alarm. Relay will energize (ON) when
the level is above the setting and will de-energize (OFF) when the level falls
below the setting plus the added distance from the hysteresis (HYSTER).
ƒ LOW – used to control a Low Level alarm. Relay will energize (ON) when
the level is below the setting and will de-energize (OFF) when the level rises
above the setting plus the added distance from the hysteresis (HYSTER).
ƒ HYSTER – Used to reduce chatter by creating a hysteresis or differential for
the Alarm set point. The HYSTER value will adjust the OFF position of the
Alarm setting by the HYSTER value.
SAFE – Each relay can be individually configured to its independent fail-safe setting.
Choose between ON, OFF or HOLD
o ON – Energizes the relay when a fail-safe condition occurs
o OFF – De-energizes the relay when a fail-safe condition occurs
o HOLD – Keeps the relay in its current state when a fail-safe condition occurs
M-PLEX – when two or three relays are configured as pumps, they can be inter–connected
to alternate between each cycle. M-PLEX is only available when 2 or more relays are set for
pumps. M-PLEX will not appear when only 1 relay is set for a pump or when the relay
functions do not match (ex: Relay 1 set for a filling pump and Relay 2 set for an emptying
pump). Selecting NO-ALT will turn OFF the M-PLEX.
HELP – Provides setup information, the ability to reset the EchoSwitch II and a simulation
mode to test the relay function
o SETUP – Will display the setting for all functions of EchoSwitch II
o RESET – Will reset the EchoSwitch II back to its original factory setting
o SIM-T – SIM(ulation)-T(est) will allow the end user to simulate changes to level to
verify the relay settings. Using the UP and DOWN buttons will increase
o TEST P – This is a production test feature used by the factory to confirm operation.
This mode should only be used when supervised by a Flowline representative.
RUN – Returns the unit to normal measurement and control mode
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Feature Guide
FEATURE
Easy to use MENU
Many UNITS of
measurement.
No cumbersome measure
required. Set point
distances are relative to the
tank bottom.
Easy PUMP programming
DELAY Pump turn on.
Easy ALARM
programming
Easy ALTERNATE with
DUPLEX and TRIPLEX
pumps
TIMED BASED
ALTERNATE pumps
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ACCESS BY
Press and hold SELECT key until MENU is displayed
approximately 5 seconds. The menu items will rotate
through display, press SELECT to change an item.
In the MENU mode, press select when UNITS is display,
then select INCHES, CM (centimeter), FEET, METERS
or PERCENT.
In MENU mode, select the TANK item and set the
HEIGHT of the tank from the transducer face to the
bottom of the tank. Set the Fill Height (FILL-H) to the
maximum fill height of the liquid from the bottom of the
tank. Now all of the set points are from the bottom of the
tank up.
In MENU mode, when the relay you wish to program is
showing, press SELECT, then select PUMP, then FILL
or EMPTY, then set the ON or OFF points. The DELAY
is a start pump delay used in batch processing
applications.
In MENU mode, select relay and set the pump actions
desired, when the DELAY menu item is displayed press
and set the turn on delay time in seconds. The pump will
now delay after the set point is reached before turn on.
In MENU mode, when the relay you wish to program is
showing, press SELECT, then when ALARM appears
select it, then select HIGH or LOW, then set the ON
point. The hysteresis (HYSTER) sets the OFF point the
distance set in HYSTER away form the ON point.
Just program the least two relays as pumps and the MPLEX menu item will appear in the top menu, select it
and then select either NO ALT (No alternation),
DUPLEX (two pumps) or TRIPLEX (three pumps). Note
you can have three pumps programmed and only duplex
two of them. This is useful during servicing.
In MENU mode, program at least two relays as pumps
and select M-PLEX menu. Select either DUPLEX or
TRIPLEX and then select A-TIME. Change the values
(in hours) to the time you which the pumps to alternate.
The cycle-by-cycle alternation will be disabled and the
time base will take over.
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How to enter the MENU
1. Press and hold SELECT key (approximately 5 seconds) until MENU is displayed.
2. The menu items will rotate through display.
3. Press SELECT to change an item.
How to configure UNITS
1. In the MENU mode, press select when UNITS is display.
2. Press SELECT to choose between INCHES, CM (centimeter), FEET, METERS or
PERCENT.
3. Select EXIT to return to the Top Level Menu.
Note: Reading the level of liquid in Percent
• Flowline recommends that when selecting PERCENT, configure the Height and Fill_H
settings before selecting PERCENT in order to span the EchoSwitch II for your
application requirements.
• When in PERCENT, the operational span will be based upon the last TANK settings,
typically the factory settings for Height and Fill_H.
EchoSwitch II
LU77 Series
LU78 Series
•
Height
98.4” (250 cm)
295.2” (750 cm)
Fill_H
94.4” (239.8 cm)
287.2” (729.7 cm)
When PERCENT is selected, the TANK settings (Height and Fill_H) will be disabled.
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How to configure the Operational range of EchoSwitch II
No cumbersome measurement is required
via Target Calibration to establish set
points. Set point distances are relative to
the tank bottom
1. In MENU mode, select the TANK
item
2. Select HEIGHT.
3. Using the UP and DOWN buttons,
set the HEIGHT of the tank from
the transducer face to the bottom of
the tank.
4. To enter the value, press and hold
SELECT (Approximately 2
seconds) until SAVED is displayed.
5. When FILL-H appears, press
SELECT.
6. Using the UP and DOWN buttons,
set the Fill Height (FILL-H) to the
maximum fill height of the liquid
from the bottom of the tank.
7. Press and hold SELECT (2
seconds) to enter the value.
8. Select EXIT to return to Top Level
Menu.
Note:
• Flowline recommends that when selecting PERCENT, configure the Height and Fill_H
settings before selecting PERCENT in order to span the EchoSwitch II for your
application requirements.
• When PERCENT is selected, the TANK settings (Height and Fill_H) will be disabled.
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How to set a HIGH ALARM
Note: The hysteresis (HYSTER) setting can
be used to eliminate chattering of the relay.
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1. In MENU mode, when the relay
you wish to program is appears,
press SELECT.
2. When ALARM appears, press
SELECT.
3. When HIGH appears, press
SELECT.
4. Using the UP and DOWN buttons,
set the HIGH (ON) set point for the
relay.
5. To enter the value, press and hold
SELECT (Approximately 2
seconds) until SAVED is displayed.
6. When HYSTER appears, press
SELECT.
7. Hysteresis [HYSTER] is the
distance away from the original ON
setting where the Alarm will turn
OFF.
8. Using the UP and DOWN buttons,
set the HYSTER (OFF) set point
for the relay.
9. Press and hold SELECT (2
seconds) to enter the value.
10. Select EXIT to return to Top Level
Menu.
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Rev A
How to set a LOW ALARM
Note: The hysteresis (HYSTER) setting can
be used to eliminate chattering of the relay.
09 JUL 08
Rev A
1. In MENU mode, when the relay
you wish to program is appears,
press SELECT.
2. When ALARM appears, press
SELECT.
3. When LOW appears, press
SELECT.
4. Using the UP and DOWN buttons,
set the LOW (ON) set point for the
relay.
5. To enter the value, press and hold
SELECT (Approximately 2
seconds) until SAVED is displayed.
6. When HYSTER appears, press
SELECT.
7. Hysteresis [HYSTER] is the
distance away from the original ON
setting where the Alarm will turn
OFF.
8. Using the UP and DOWN buttons,
set the HYSTER (OFF) set point
for the relay.
9. Press and hold SELECT (2
seconds) to enter the value.
10. Select EXIT to return to Top Level
Menu.
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How to Fill a tank/vessel with a pump.
1. In MENU mode, when the relay
you wish to program is appears,
press SELECT.
2. When PUMP appears, press
SELECT.
3. When FILL appears, press
SELECT.
4. When ON appears, press SELECT.
5. Using the UP and DOWN buttons,
set the ON set point for the relay.
The ON setting is always the level
where the relay will energize and
will be the lower level between the
two set points.
6. To enter the value, press and hold
SELECT (Approximately 2
seconds) until SAVED is displayed.
7. When OFF appears, press SELECT.
8. Using the UP and DOWN buttons,
set the OFF set point for the relay.
The OFF setting is always the level
where the relay will de-energize
and will be the higher level between
the two set points.
9. Press and hold SELECT (2
seconds) to enter the value.
If you want to add a delay when the
PUMP starts, continue on to step 10. If
no delay is required, jump to step 13.
10. When DELAY appears, press
SELECT.
11. Using the UP and DOWN buttons,
set the DELAY time in seconds.
Pump delay can be set from 0 to
600 seconds.
12. Press and hold SELECT (2
seconds) to enter the value.
13. Select EXIT to return to Top Level
Menu.
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How to Empty a tank/vessel with a pump.
1. In MENU mode, when the relay
you wish to program is appears,
press SELECT.
2. When PUMP appears, press
SELECT.
3. When EMPTY appears, press
SELECT.
4. When ON appears, press SELECT.
5. Using the UP and DOWN buttons,
set the ON set point for the relay.
The ON setting is always the level
where the relay will energize and
will be the higher level between the
two set points.
6. To enter the value, press and hold
SELECT (Approximately 2
seconds) until SAVED is displayed.
7. When OFF appears, press SELECT.
8. Using the UP and DOWN buttons,
set the OFF set point for the relay.
The OFF setting is always the level
where the relay will de-energize
and will be the lower level between
the two set points.
9. Press and hold SELECT (2
seconds) to enter the value.
If you want to add a delay when the
PUMP starts, continue on to step 10. If
no delay is required, jump to step 13.
10. When DELAY appears, press
SELECT.
11. Using the UP and DOWN buttons,
set the DELAY time in seconds.
Pump delay can be set from 0 to
600 seconds.
12. Press and hold SELECT (2
seconds) to enter the value.
13. Select EXIT to return to Top Level
Menu.
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How to Fill a tank/vessel with a valve.
1. In MENU mode, when the relay
you wish to program is appears,
press SELECT.
2. When VALVE appears, press
SELECT.
3. When FILL appears, press
SELECT.
4. When ON appears, press SELECT.
5. Using the UP and DOWN buttons,
set the ON set point for the relay.
The ON setting is always the level
where the relay will energize and
will be the lower level between the
two set points.
6. To enter the value, press and hold
SELECT (Approximately 2
seconds) until SAVED is displayed.
7. When OFF appears, press SELECT.
8. Using the UP and DOWN buttons,
set the OFF set point for the relay.
The OFF setting is always the level
where the relay will de-energize
and will be the higher level between
the two set points.
9. Press and hold SELECT (2
seconds) to enter the value.
If you want to add a delay when the
VALVE starts, continue on to step 10.
If no delay is required, jump to step 13.
10. When DELAY appears, press
SELECT.
11. Using the UP and DOWN buttons,
set the DELAY time in seconds.
Valve delay can be set from 0 to
600 seconds.
11. Press and hold SELECT (2
seconds) to enter the value.
12. Select EXIT to return to Top Level
Menu.
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How to Empty a tank/vessel with a valve.
1. In MENU mode, when the relay
you wish to program is appears,
press SELECT.
2. When VALVE appears, press
SELECT.
3. When EMPTY appears, press
SELECT.
4. When ON appears, press SELECT.
5. Using the UP and DOWN buttons,
set the ON set point for the relay.
The ON setting is always the level
where the relay will energize and
will be the higher level between the
two set points.
6. To enter the value, press and hold
SELECT (Approximately 2
seconds) until SAVED is displayed.
7. When OFF appears, press SELECT.
8. Using the UP and DOWN buttons,
set the OFF set point for the relay.
The OFF setting is always the level
where the relay will de-energize
and will be the lower level between
the two set points.
9. Press and hold SELECT (2
seconds) to enter the value.
If you want to add a delay when the
VALVE starts, continue on to step 10.
If no delay is required, jump to step 13.
10. When DELAY appears, press
SELECT.
11. Using the UP and DOWN buttons,
set the DELAY time in seconds.
Valve delay can be set from 0 to
600 seconds.
12. Press and hold SELECT (2
seconds) to enter the value.
13. Select EXIT to return to Top Level
Menu.
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How to Duplex two relays
Duplex enables EchoSwitch II to use two relays to alternate after each cycle while performing a
lead lag operation. Example below shows two relays (A and B) used to Auto Empty a tank:
1. Make sure at least two relays are in the same mode for pumps. (ex: two relays are set as
PUMPs that FILL or two relays are set as PUMPs that EMPTY. If this is not true, then
M-PLEX will not appear.
2. When M-PLEX appears, press SELECT.
3. When DUPLEX appears, press SELECT.
If three relays are configures in the same mode, continue to step 4. If not, jump to step 5.
4. EchoSwitch II will allow you to select which two of three relays you would like to
duplex. When the correct combination of relays (R1_R2, R2_R3 or R1_R3) is shown,
press SELECT.
5. Select EXIT to return to Top Level Menu.
How to Triplex three relays
Triplex enables EchoSwitch II to use three relays to alternate after each cycle while performing a
lead lag-lag operation. Example below shows two relays (A, B and C) used to Auto Empty a
tank:
1. Make sure all three relays are in the same mode. (ex: three relays are set as PUMPs that
FILL or three relays are set as PUMPs that EMPTY. If this is not true, then TRIPLX will
not appear.
2. When M-PLEX appears, press SELECT.
3. When TRIPLX appears, press SELECT.
4. Select EXIT to return to Top Level Menu.
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How to turn off DUPLEX or TRIPLEX.
1. When M-PLEX appears, press SELECT.
2. When NO ALT appears, press SELECT.
3. Select EXIT to return to Top Level Menu.
How to Time Alternate relays
This function is only operational when two or more relays are configured as pumps performing
the same function (either filling or emptying).
1. Make sure at least two relays are in the same mode. (ex: two relays are set as PUMPs
that FILL or three relays are set as PUMPs that EMPTY. If this is not true, then MPLEX will not appear.
2. When M-PLEX appears, press SELECT.
3. Choose between DUPLEX or TRIPLX and press SELECT.
4. When A-TIME appears, press SELECT.
5. When HOURS appears, press SELECT.
6. Using the UP and DOWN buttons, set the Alternating Time in Hours. Alternating Time
can be set from 0 to 600 hours.
7. Press SELECT to enter the value.
8. Select EXIT to return to Top Level Menu.
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Electrical
Input Power
The EchoSwitch II is powered from 95 to 250 VAC power. Power is applied to the L1 and L2
terminals. Typically, Hot is applied to L1 and Neutral to L2. The power terminals are
mechanically isolated so the inputs can be reversed.
Relay Connection
The EchoSwitch II features three 60 VA, 1A max SPDT relays. All three relays are isolated and
can be wired to switch either Normally Open (NO) or Normally Closed (NC). The example
below shows Relay 2 wired NC and Relay 3 wired NO. Make sure to select a relay state that is
fail-safe and takes into account when power is lost to the EchoSwitch II.
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Installation
Warning - Flowline Ultrasonic transmitters have been optimized for use in non-metallic fittings.
For best performance, avoid the use of metallic fittings. Install the appropriate installation
fitting. Make sure that the fitting and transmitter threads are not damaged or worn. Install the
transmitter with the included Viton mounting gasket. Hand-tighten the transmitter within the
fitting. Perform an installed leak test under normal process conditions prior to system start up.
Do not install at
angle relative to the
liquid.
Do not install within
3” of tank sidewall.
Do not install with
objects in the beam.
Do not install in
applications with
vacuum.
Fitting Selection: Check the part number to determine the required fitting mount size and thread
type. EchoSwitch II is commonly installed in tank adapters, flanges, brackets or standpipes.
Note: Always include the gasket when installing the EchoSwitch II.
1. Tank Adapter: Select a tank adapter fitting with minimal height so as to ensure that the
installed transducer will not be substantially elevated into the fitting such as the Hayward
2” Tank Adapter (socket by thread). For the LU77-5005 version s, add a Reducer
Bushing such as the Spears 2” x 1”, thread x thread, Reducer Bushing (series 839-249,
Flowline p/n LM52-1001). Avoid tank adapter (thread x thread) styles and/or pipe stops
forward of the installed transducer.
2” Tank Adapter
Socket x Thread
Tank Adapter
w/ 2”x1” Reducer Bushing
Tank Adapter
Thread x Thread
Do not use thread x thread
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2. Riser: Installations with tall, narrow risers can impede the acoustic signal. Select a
fitting with the right riser height versus inner diameter geometry.
3. Flange: If installing on a flange, select a flange with a thread that is above the plane of
the flange, such as the Spears 2” One Piece Flange (series 852-020). Avoid the use of
blind flanges with tapped threads or flanges where the threads are even with the plane of
the flange, such as the Banjo 2" Poly ANSI Flange (series AF200).
2” Flange w/
thread out of plane
2” Flange w/
thread in plane
2” Flange w/
Reducer Bushing
Do not use thread in plane
If the installation requires the use of a blind flange, tap a thread 1” larger than the sensors
thread and add a Reducer Bushing such as a Spears thread x thread Reducer Bushing [Use
the 839-338 (3” x 2”) for LU78 series or 839-249 (2” x 1”) for LU77 series].
4. Side Mount Bracket: The LM50-1001 side mount bracket or equivalent can be used for
open tank top installations against the sidewall. For the LU77 series, order the LM501001-1, which includes a 2”x 1” Reducer Bushing.
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5. Stand Pipe: A standpipe maybe used to dampen turbulence. Flowline recommends
using a standpipe when foam is present in the application. Select a 2” pipe or larger for
the LU77 series and a 3” pipe or larger for all other models. The pipe length should run
the measurement span. Cut a 45°notch at the bottom of the pipe and drill a 1/4”pressure
equalization hole high in the dead band.
6. Reducer Bushings: A reducer bushing can be used to decouple the EchoSonic II from
metallic fittings or flanges with threads in the plane or to connect the transmitter to a
larger stand pipe.
Flowline P/N
LM52-1400
Hayward P/N
439-249
LM52-1410
438-249
LM52-2400
439-338
LM52-2410
438-338
Thread x Thread
Reducer Bushing
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Description
2" Thread x 1" Thread,
PVC, Sch 40
2" Socket x 1" Thread,
PVC, Sch 40
3" Thread x 2" Thread,
PVC, Sch 40
3" Socket x 2" Thread,
PVC, Sch 40
Socket x Thread
Reducer Bushing
EchoSwitch II
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Appendix
Setup:
You can view how the EchoSwitch II is configured.
1. From the main MENU level, press SETUP when HELP appears.
2. When SETUP appears, press the SELECT key.
3. Setup will display the following information:
a. Units, Height, Fill_H, Relay 1, Relay 2, Relay 3
b. The following will be shown for each relay
i. Relay Function, On Setting, Off Setting, Safe Setting and Delay
4. When completed, press SELECT when appears EXIT to return to the main program
level.
Reset:
EchoSwitch II enables the end user to reset specific relays or the entire configuration within the
level controller.
R All – Resets the entire EchoSwitch II
RST R1 – Resets only the settings associated with Relay 1
RST R2 – Resets only the settings associated with Relay 2
RST R3 – Resets only the settings associated with Relay 3
Follow the instructions below to reset EchoSwitch II
1. From the main MENU level, press SETUP when HELP appears.
2. When RESET appears, press the SELECT key.
3. Select the type of Reset required (Rall, RST 1, RST 2 or RST 3) and press SELECT
4. When completed, press SELECT when appears EXIT to return to the main program
level.
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Simulation (SIM-T)
This mode enables the end user to simulate changes in level without having the level of liquid
move. The display will simulate level of liquid and will turn the relays ON and OFF according
to how they were configured. For example, if Relay 1 is set as a High Alarm with an ON setting
for 100.0 inches and a Hysteresis of 2.0 inches, then when the display goes above 100.0, Relay 1
will energize and when the level falls below 98.0, Relay 1 will de-energize. This function can be
used to test the wiring and to verify if the configuration is set accordingly.
Please note: Simulation mode will energize and de-energize all configured relays. Any devices
wired to the relays will become active during simulation mode.
Follow the instructions below to begin the Simulation mode (SIM-T)
1. From the main MENU level, press SETUP when HELP appears.
2. When SIM-T appears, press the SELECT key.
3. The display will start at 0.0. Press the UP button to begin increasing the level of liquid.
Use the DOWN button to simulate the lowering of liquid in the tank.
4. To increase speed, hold the SELECT button while hold the UP or DOWN keys.
5. To exit, press and hold the SELECT key.
6. Press SELECT when appears EXIT to return to the main program level.
Test Parameters
This mode runs diagnostic tests that confirm operation of EchoSwitch II. This mode should
only be used when supervised by a Flowline representative.
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Troubleshooting
PROBLEM
TANK does not appear on
the main menu
M-PLEX does not appear
on the main menu
Display shows FULL
Display shows EMPTY
Pumps or Valves do not
alternate
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SOLUTION
Units function is set for PERCENT on EchoSwitch II:
When Units is set for PERCENT, the TANK function is
disabled. To re-enable TANK, change units to INCHES,
CM, FEET or METERS.
None of the relays are configured the same: M-PLEX
will only appear when 2 or 3 relays are configured as the
same function. For example, two or more relays are
configured as Pumps that Auto Fill. M-PLEX will not
appear if a relay is configured as an Auto Empty Pump
and an Auto Empty Valve.
Level of liquid is above the FILL_H setting: Check the
FILL_H setting, making sure the FILL_H setting is high
enough so the level of liquid is below the FILL_H setting
Level of liquid is beyond the HEIGHT setting: Check
the HEIGHT setting, making sure the HEIGHT setting is
low enough so the level of liquid is above the HEIGHT
setting
M-PLEX is set for NO-ALT or A-TIME is set above 0:
1) If M-PLEX is set for NO-ALT, then the relays will not
alternate. Change M-PLEX to either DUPLEX or
TRIPLX to begin alternation.
2) If A-TIME is set for anything above 0 hours, then the
pumps will only alternate after the A_TIME set has been
reached. For example, if A-TIME is set for 3 hours, then
the relays will only switch after each 3 hour period. To
alternate after each cycle, change A-TIME to 0 hours
EchoSwitch II
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