Flomotion Systems LT260 User manual

LT260
Ultrasonic Level Transmitter
Operation and Maintenance Manual

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TABLE OF CONTENTS
1. SYSTEM INTRODUCTION ................................................................................................. 4
1. Receiving and Inspection of Product and Packaging.......................................................... 4
2. Safety and Operation........................................................................................................... 4
3. Warranty ............................................................................................................................. 4
2. TECHNICAL SPECIFICATIONS ....................................................................................... 5
3. INSTALLATION.................................................................................................................... 6
1. General................................................................................................................................ 6
4. WIRING & POWER .............................................................................................................. 8
5. INITIAL START-UP & DISPLAY....................................................................................... 9
6. PROGRAMMING ................................................................................................................ 10
PROGRAMMING MODE ..................................................................................................... 12
[P01] Measurement Type.................................................................................................. 12
[P02] Unit of Measure ...................................................................................................... 12
[P03] Display Measurement Value................................................................................... 12
[P04] Empty Distance ....................................................................................................... 12
[P05] Dead Zone ............................................................................................................... 13
[P06] 4mA Set Point ......................................................................................................... 13
[P07] 20mA Set Point ....................................................................................................... 13
[P08] mA Fail-Safe Value ................................................................................................ 13
[P09] mA Fail-Safe Time.................................................................................................. 13
[P10] Dampening .............................................................................................................. 14
[P11] Detection Threshold Voltage .................................................................................. 14
[P12] Output Power .......................................................................................................... 14
[P13] Sound Velocity........................................................................................................ 15
[P14] Vapor Temperature Compensation ......................................................................... 15
[P15] Detection Algorithm ............................................................................................... 15
[P16] Detection Target...................................................................................................... 15
[P17] Current Output Simulation...................................................................................... 16
[P18] Password ................................................................................................................. 16
7. MAINTENANCE.................................................................................................................. 16

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1. SYSTEM INTRODUCTION
1. Receiving and Inspection of Product and Packaging
When opening the LT260 packaging, inspect all cartons for damage that may have
occurred during shipping. Carefully unpack equipment and inspect thoroughly for
damage or shortage. Report any damage to carrier and/or shortages to supplier. DO
NOT discard any boxes or packaging if damage has occurred.
2. Safety and Operation
In the interest of safety, the installation and operation of the LT260 shall be
performed by licensed or qualified professionals. Before powering the LT260, please
read his manual thoroughly. Flomotion Systems is not responsible for accidents
caused by misuse or modification of the product.
3. Warranty
Flomotion Systems, Inc. warrants the LT260 Series to be free of defects in material
and workmanship for a period of one year from date of sale. Under normal use, if the
LT260 becomes defective within the stated warranty time period, contact Flomotion
Systems, Inc. for return authorization prior to returning any product. Flomotion
Systems, Inc. reserves the right to make the final determination as to the validity of a
warranty claim, and sole obligation is to repair or replace only components, which
have been rendered defective due to faulty material or workmanship. No warranty
claim will be accepted for components which have been damaged due to mishandling,
improper installation, unauthorized repair and/or alteration of the product, operation
in excess of design specifications or other misuse, or improper maintenance.
Flomotion Systems, Inc. makes no warranty that its products are compatible with any
other equipment, or to any specific application, to which it may be applied and shall
not be held liable for any other consequential damage or injury arising from the use of
its products. This warranty is in lieu of all other warranties, expressed or implied.
No other person, firm or corporation is authorized to assume, for Flomotion Systems,
Inc., any other liability in connection with the demonstration or sale of its products.

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2. TECHNICAL SPECIFICATIONS
Dimensions 7.4d x 11.2h in. (188d x 284h mm)
Process Connection 3” NPT or Flanged
Housing Material Aluminum Alloy
Sensor Material PVDF
Weight 6.2 lbs (2.8 Kg)
NEMA Rating NEMA 6
Temperature -4°F to 158°F (-20°C to 70°C)
Measurement Range 26ft. (8m)
Accuracy 0.2% of F.S.
Display Resolution 0.04 in (1mm)
Beam Angle 8° at -3dB
Damping Rate Adjustable
Temperature Compensation Built-in
Analog Output 4-20mA, 550Ωat 24VDC
Display 5 Digit Numeric LCD
Power Supply 20 to 30VDC
Supply Current 0.022A
Certification CE

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3. INSTALLATION
1. General
•Remove any obstacles between the sensor and measurement point.
•The bottom of the sensor should be perpendicular to the measurement point.
•Avoid mounting the sensor too close to a wall.
•Avoid setting a maximum level into the Dead Zone range.
•Avoid the exposure to direct sunlight.
•Avoid high voltage or high current lines.
•Install on solid, non-vibrating surface.
•LT260 shall be used in accordance with manufacturer’s specifications.
The bottom of the sensor should be
perpendicular to the surface of water.
When mounting the sensor, keep the distance
to the tank wall into consideration.

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Installation with mounting bracket
Installation with threaded flange
NOTE: Do not exceed maximum nozzle length for recommended nozzle diameter. Nozzle
material must be seamless.
Nozzle Diameter (D) Maximum Nozzle Length (L)
3” (80mm) 9” (240mm)
4” (100mm) 12” (300mm)
6” (150mm) 17” (430mm)
8” (200mm) 22” (570mm)

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4. WIRING & POWER
When powering the LT260 use 20-30Vdc. Wiring and power diagram for proper installation
below.
16A Connector
Cable
Terminal
block
1/2” Nipple
-
(+24V)
+

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5. INITIAL START-UP & DISPLAY
The LT260 has two display modes; a measurement mode for displaying level and a programming
mode for application set-up.
Measure Mode:
In measurement mode, 4 LED’s are seen on the front panel of the LT260, shown below. A
Flashing “0” on the display is shown when it is in fault condition (Lost Echo).
LED Condition Function
Detect & Level Flashing together Indicates Normal Operation
Mode selected = Level
Detect & Distance Flashing together Indicates Normal Operation
Mode selected = Distance
Detect & Space Flashing together Indicates Normal Operation
Mode selected = Space
Level or
Distance or
Space
Flashing alone
Indicates that LT260 is detecting an
echo but checking if the value is
correct.
None All Off
Display indicates “E-Err”
Indicates that LT260 has gone into Fail
condition.
Reasons:
- There is no reflected echo received.
- Transducer and electronic part are
disconnected

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6. PROGRAMMING
The “MENU” button is used to enter the programming mode. It is located below the LED
function on the display. In programming mode, a program number is shown on the LCD such as
P01, P02.
Programming Buttons
To enter the Program Mode simply press the “MENU” button >1 sec. Once in Program Mode,
The Level, Distance, and Space LED’s turn off. The software version will display and the Menu
P01 will appear. Use the Up/Down buttons to access each parameter.
Enter Program Mode
Enter specific parameter mode
Exit from programming mode and put into operating mode.
Accepts parameter settings when in programming mode.
Changes parameter option.
Increase a specific parameter setting.
Changes parameter option.
Decrease a specific parameter setting.

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Programming Example
Press “MENU” button for 1 second in measuring mode.
Software version displays for 2 second.
After showing the S/W version, the parameter number displays.
Use “UP” and “DOWN” button go change parameter.
Press “menu” button, the first digit flickers. Press up/down
buttons to change parameter setting.
After the first digit is set, press “MENU “button to move the
second digit.
Once value is entered, press “RUN” to save the value. Display
will return to measuring mode.
If you press “ESC” button instead of “RUN” button, it returns to
the programming mode and the parameter setting value is saved.

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PROGRAMMING MODE
[P01] Measurement Type
[Default: 1 (Level)]
Option Value Description
1 Level Displays how full the tank is with respect to the Empty (0% of
Span)
2 Distance Displays the distance from the transducer face to the water surface.
3 Space Displays how an empty the tank is with respect to Full (100% of
Span) i.e. how much space is available in the tank.
[P02] Unit of Measure
[Default: 2 (Feet)]
Option Unit
1 Meter
2 Feet
[P03] Display Measurement Value
[Default: 1 (Level)]
Option Unit
1 Measuring Type
2 mA (Current Value)
3 % (Percentage)
[P04] Empty Distance
[Sets the maximum distance from the face of the transducer to the bottom distance of an empty
tank.
Setting range Default
00.00 - 26.0ft. (0 - 7.92m) 26.00ft

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[P05] Dead Zone
Sets the distance from the face of the transducer to the closest readable level.
Setting Default
Minimum 01.00 - 26.00ft (0.30 - 7.92m) 01.00ft
[P06] 4mA Set Point
[Default: 00.00ft]
Sets the 4mA value for the measurement type selected to P01. 4mA typically is Empty (0% of
Span)
Setting Default
Minimum 00.00 - 26.00ft (0 - 7.92m) 00.00ft
[P07] 20mA Set Point
[Default: 26.00ft]
Sets the 20mA value for the measurement type selected in P01. 20mA typically is Full (100% of
Span).
Setting Default
Minimum 00.00 - 26.00ft (0 - 7.92m) 26.00ft
[P08] mA Fail-Safe Value
[Default: 1 (3.8mA)]
Upon Loss of Echo, the mA output can be set to indicate a fault condition.
Option
1 3.8 mA: Fault condition (LOE) indicated by 3.8mA
2 Hold: Last know measured value
3 22mA: Fault condition (LOE) indicated by 22mA
[P09] mA Fail-Safe Time
Sets the time the Fail-Safe value is held.
Setting Default
Minimum 20 - 900 sec 300 sec

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[P10] Dampening
[Default: 001.00]
Sets the display value response time.
Option Description
000.01 Slowest Slowest response to level change.
Minimum: 000.01 - Maximum: 100.00
100.00 Fastest Fastest response to level change.
[P11] Detection Threshold Voltage
[Default: 03 and is acceptable for most applications]
Sets the detection of the returned echo. For noisy applications increase the detect threshold. For
detection of weak signals, decrease the detect threshold value.
Range: 03 (Low) - 15 (High)
[P12] Output Power
[Default: 2]
Option Level Description
1 Low Power Use for short range applications
2 Normal Power Use in normal conditions
3 High Power Use in long range measurement
4 Maximum Power Use in dusty, steamy or turbulent applications.

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[P13] Sound Velocity
[Default: 331.5, Air, most common setting]
Sets the sound velocity to be changed according to the atmosphere the transducer is operating in.
Range: 150 - 500
Medium Sound speed (sec)
Chlorine 206
Carbon dioxide 259
Argon 308
Oxygen 316
Air 331.5
Ammonia 415
Ethane 430
Neon 435
Helium 965
[P14] Vapor Temperature Compensation
[Default: 060]
Range: 000 - 200
[P15] Detection Algorithm
[Default: 1 (Automatic)]
Option Description
1 Automatic
2 Effective only for the first signal
[P16] Detection Target
[Default: 1 (Liquid)]
Option Description
1 Liquid
2 Bubble Liquid
3 Solid
4 Powder

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[P17] Current Output Simulation
[Default: 10.00ft]
Simulates a mA value for the measurement type selected in P01.
Setting Default
Minimum 00.00 - 26.00ft (0 - 7.92m) 10.00ft
[P18] Password
[Default: 0000] It is not recommended to change. If password is changed and forgotten, the
transmitter will need to be sent back to the factory to be unlocked.
Range: 0000 - 9999
7. MAINTENANCE
Inspect sensor face for dirt or debris and wipe clean if necessary.

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FLOMOTION SYSTEMS Inc.
3 N. Main St., Middleport, NY 14105
Toll Free: [phone] (U.S. & Canada)
Tel: [phone]
Fax: [phone]
[e-mail]
www.flomotionsystems.com
www.flomotionsystems.com
DECEMBER 2019