FlowLine EchoSwitch II LU77 Series User manual

09 JUL 08 EchoSwitch II 1 of 33
Rev A MN300650
EchoSwitch II
Manual – MN300650
09 JULY 08
Revision A
Flowline Inc.
10500 Humbolt Street
Los Alamitos, CA 90720
Tel: [phone]
Fax: [phone]
www.flowline.com

2 of 33 EchoSwitch II 09 JUL 08
MN300650 Rev A

09 JUL 08 EchoSwitch II 3 of 33
Rev A MN300650
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.: Automatic
Electronics temp.: F: -40° to 140°
C: -40° to 60°
Pressure: MWP = 30 PSI
Enclosure rating: NEMA 4X (IP65)
Enclosure vent: Water tight
membrane
Encl. material: Polycarbonate
Encl. hardware: Brass and stainless
Trans. material: PVDF
Process mount: 2” NPT (2” G)
Mount. gasket: Viton®
Conduit entrance: Dual, 1/2” NPT
Classification: General purpose
Compliance: RoHS
Approvals: 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
oHEIGHT – Distance from the
transducer face to the bottom of the
tank.
oFILL-H – Maximum fill height of
the liquid from the bottom of the
tank.
•Set Points:
oYou 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:
oProvide 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.
oHEIGHT – Distance from the transducer face to the bottom of the tank.
oFILL-H – Maximum fill height of the liquid from the bottom of the tank.
oPress Exit to return to the Top level Menu
oNote: 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.
oPUMP – 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
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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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).
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.
oVALVE – 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
EMPTY – used to control a valve 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).
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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oALARM – 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)
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).
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).
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
oON – Energizes the relay when a fail-safe condition occurs
oOFF – De-energizes the relay when a fail-safe condition occurs
oHOLD – 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
oSETUP – Will display the setting for all functions of EchoSwitch II
oRESET – Will reset the EchoSwitch II back to its original factory setting
oSIM-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
oTEST 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 ACCESS BY
Easy to use MENU 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.
Many UNITS of
measurement. In the MENU mode, press select when UNITS is display, then select INCHES, CM (centimeter), FEET, METERS
or PERCENT.
No cumbersome measure
required. Set point
distances are relative to the
tank bottom.
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.
Easy PUMP programming 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.
DELAY Pump turn on. 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.
Easy ALARM
programming 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.
Easy ALTERNATE with
DUPLEX and TRIPLEX
pumps
Just program the least two relays as pumps and the M-
PLEX 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.
TIMED BASED
ALTERNATE pumps 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 Height Fill_H
LU77 Series 98.4” (250 cm) 94.4” (239.8 cm)
LU78 Series 295.2” (750 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.
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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How to set a LOW ALARM
Note: The hysteresis (HYSTER) setting can
be used to eliminate chattering of the relay.
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.