LU12, LU13, LU14
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 is
the Navigation Bar along the side of the home page.
If for some reason your product must be returned for factory service, contact Flowline Inc. at (562)598-3015 to receive a Material
Return Authorization number (MRA), providing the following
information:
®
MiniMe™ 2-Wire Ultrasonic
Level Transmitter
Model LU12/LU13/LU14
Owner’s Manual
1. Part Number, Serial Number
2. Name and telephone number of someone who can answer
technical questions related to the product and its application.
3. Return Shipping Address
4. Brief Description of the Symptom
5. Brief Description of the Application
Once you have received a Material Return Authorization number,
ship the product prepaid in its original packing to:
Flowline Factory Service
MRA _____
10500 Humbolt Street
Los Alamitos, CA 90720
To avoid delays in processing your repair, write the MRA on the
shipping label. Please include the information about the malfunction with your product. This information enables our service technicians to process your repair order as quickly as possible.
Version 0.2.1A
© 2002 FLOWLINE Inc.
All rights reserved.
Manual # LU900012
10/02
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.
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.
This warranty covers only those components of the products which
are non-moving and not subject to normal wear. Moreover, products
which are modified or altered, and electrical cables which are cut to
length during installation are not covered by this warranty.
Flowline further reserves the right to unilaterally wave 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.
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.
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
MERCHANT ABILITY 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.
SPECIFICATIONS
Step One
Range:
Overview:
MiniMe redefines performance for continuous non-contact ultrasonic
level measurement in bulk chemical, oil and waste storage tanks up to
40’ (12.2 m), and is ideally suited for challenging corrosive, coating or
waste liquids. The compact corrosion proof package is completely
sealed and stands only 1.7” above the tank top. The transmitter is
broadly selected for atmospheric bulk storage, day tank, process vessel
and waste sump applications. Media examples include ink and polymer.
The transmitter may be spanned in seconds using the calibration wire,
a DC power supply and flat reflective target. To set the 4 mA span,
attach the calibration wire to the return side of the power supply, hold
the transmitter at the desired range and turn power on until the
Flowline logo plate illuminates. To set the 20 mA span, connect the
calibration wire to the positive side of the power supply and follow
the same procedure.
Part Number
LU12-5001
LU12-5061
LU13-5001
LU13-5061
LU14-5001
LU14-5061
Max. Range
10’ (3m)
10’ (3m)
25’ (7.6m)
25’ (7.6m)
40’ (12.2m)
40’ (12.2m)
MiniMe - Side View
LU13 & LU14 Series
Operating Pressure (psi)
Red
Black
White
Shld
40
Unacceptable
Range
30
20
Acceptable
Range
10
00
-40
-20
00
20
40
Temperature (C°)
60
80
Flowline Electrical Loading Limits
800
600
Unacceptable
Range
400
Acceptable
Range
200
0
12
16
20
24
28
Supply Voltage (VDC)
2.4" (61 mm)
0.7"
(17 mm)
1.4"(37 mm)
10' Cable (3.0 m)
MiniMe - Side View
LU12 Series
Red
Black
White
Shld
Ambient Sensor Temperature (°C)
4.1" (105 mm)
1" NPT
(1" G)
Thread
1” NPT
1” G
2” NPT
2” G
2” NPT
2” G
Temperature/Pressure Derating
Max. Series Resistance (Ohms)
3.4" (86 mm)
2.4"(61 mm)
1.7"(44 mm)
10' Cable (3.0 m)
(2" G)
Beam
2”
2”
3”
3”
3”
3”
MiniMe - Top View
LU12, LU13 & LU14 Series
4.1" (105 mm)
2" NPT
Deadband
2” (5cm)
2” (5cm)
4” (10cm)
4” (10cm)
8” (20cm)
8” (20cm)
4.0" (102 mm)
4.1" (105 mm)
LU12: 0.16’ to 10’ (5 cm to 3m)
LU13: 0.33’ to 25’ (10 cm to 7.6m)
LU14: 0.66’ to 40’ (20 cm to 12.2m)
Accuracy:
± .15% of span in air
Resolution:
0.125” (3 mm)
Beam width:
LU12: 2” diameter
LU13: 3” diameter
LU14: 3” diameter
Dead band:
LU12: 0.16’ (5cm)
LU13: 0.33’ (10cm)
LU14: 0.66’ (20 cm)
LED indication:
Power, indication and echo-status
Memory:
Non-volatile
Supply voltage:
14 - 28 VDC
Loop resistance:
600 Ohms @ 24 VDC
Signal output:
4-20 mA, two-wire
Calibration:
Target, calibration wire
Fail-safety:
Reverts to 22 mA
Process temperature: F: -40º to 160º
C: -40º to 71º
Temp. compensation: Automatic
Electronics temp:
F: -40º to 160º
C: -40º to 71º
Pressure rating:
30 psi (2 bar) @ 25 °C., derated @ 1.667 psi
(0.113 bar) per °C. above 25 °C.
Enclosure rating:
NEMA 6 (IP67)
Installed height:
1.7” (4.3 cm) above tank process mount
Enclosure material: Polycarbonate, PC/ABS FR
Transducer materials: PVDF Kynar®
Cable jacket mat’l: Polypropylene
Cable type:
3-conductor, shielded
Cable length:
10’ (3 m)
Process mount:
LU12: 1” NPT (1” G)
LU13/14: 2” NPT (2” G)
Mounting gasket:
Viton® (G version only)
Classification:
General purpose
CE compliance:
EN 50082-2 immunity
(pending)
EN 55011 emission
Maximum Temperature/Voltage
Derating @ Continuous 20 mA
100
Unacceptable
Range
80
60
Acceptable
Range
40
20
0
12
16
20
24
Operating Voltage (VDC)
28
SAFETY PRECAUTIONS
Step Two
TECHNOLOGY
Step Three
About this Manual:
About Digital Infinity:
PLEASE READ THE ENTIRE MANUAL PRIOR TO
INSTALLING OR USING THIS PRODUCT. This manual
includes information on the MiniMe™ Ultrasonic Level
Transmitter from FLOWLINE: LU12-50_1, LU13-50_1 and
LU14-50_1. Please refer to the part number located on the transmitter label to verify the exact model which you have purchased.
Digital Infinity provides unparalleled sensor performance and application benefits through advanced digital surface imaging and signal
processing technology.
User’s Responsibility for Safety:
FLOWLINE manufactures a wide range of liquid level sensors and
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:
Because this is an electrically operated device, only properlytrained staff should install and/or repair this product. Use a proper
sealant with all installations. Note: Always install the Viton gasket
with the LU1_-5061. The G threaded version of the MiniMe will
not seal unless the gasket is installed properly. Never overtighten
the transmitter within the fitting. Always check for leaks prior to
system start-up.
Wiring and Electrical:
A supply voltage of 14-28 VDC is used to power the
LU12/LU13/LU14 series transmitter. The sensor systems should
never exceed a maximum of 28 volts DC. Electrical wiring of the
sensor should be performed in accordance with all applicable
national, state, and local codes.
Material Compatibility:
The MiniMe™ enclosure is made of a flame retardant
Polycarbonate (PC/ABS FR). The transducer is made of
Polyvinylidene Fluoride (PVDF). Make sure that the model which
you have selected is chemically compatible with the application
liquids it will contact.
Enclosure:
While the transmitter housing is liquid-resistant when installed
properly, it is not designed to be immersed. It should be mounted
in such a way that the enclosure and transducer do not come into
contact with fluid.
Make a Fail-Safe System:
Design a fail-safe system that accommodates the possibility of
transmitter or power failure. In critical applications, FLOWLINE
recommends the use of redundant backup systems and alarms in
addition to the primary system.
Flammable, Explosive and Hazardous Applications:
The LU12/LU13/LU14 series transmitter systems should not be
used within flammable or explosive applications.
Warning
Always install the Viton gasket with all versions of the LU1_5061. The G threaded version of the MiniMe will not seal unless
the gasket is installed properly.
Performance Benefits:
Digital Infinity sensors are accurate
to ± 0.15% of measured span in air
with no accuracy degrading over
span. The powerful sensors are capable of ranges up to 40’ with only a 2”
transducer. The minimum dead band
is 2” for optimum tank filling capacity. The applied beam width is narrowed to an amazing 3” of minimum
required free space across the span for
use in restricted locations.
Application Benefits:
Digital Infinity sensors are widely
installed in tank adapters, still wells
or flanges, and can even be located in
the center of parabolic dome top
tanks. The raw signal strength and
processing capacity enable the sensor
to measure through significant vapor
density. The digital surface imaging
creates a living process map that
rejects obstacle reflections from within the broader beam. The same imaging technology enables deep measurement into sloped cone tank bottoms. With various power modes, the
sensor is able to detect and adjust for
the presence of process foam. During
agitation, the digital surface imaging
maintains focus and accuracy. In the
event of acoustic signal loss, the sensor will invert to the safe state
and indicate a diagnostic string for use in troubleshooting.
Its level made simple!
ELECTRICAL
WIRING
Step Four
Step Five
Supply Voltage: The supply voltage to the LU12/LI13/LU14 series
transmitter should never exceed a maximum of 28 VDC. Flowline
controllers have a built-in 24 VDC power supply, which provides
power to all of Flowline’s transmitters. Alternative controllers and
power supplies, with a minimum output of 14 VDC up to a maximum
output of 28 VDC, may also be used with the LU12/LU13/LU14
series transmitter.
Wiring to a FLOWLINE Continuous Controller (LC52 Series):
Connect the Red wire to the positive 24 VDC, 25 mA terminal on the
LC52 series controller. Connect the Black wire to the GND terminal on
the LC52 series controller (See illustration below). Check the LC52’s
instruction manual for setting the LC52 for loop powered operation.
WHITE
Wire Stripping: Using a 10 gauge wire stripper, carefully remove
the outer layer of insulation from the last 1-1/4” of the transmitters
cable. Unwrap and discard the exposed foil shield from around the
signal wires, leaving the drain wire attached if desired. With a 20
gauge wire stripper, remove the last 1/4” of the colored insulation
from the signal wires.
Signal Outputs (4-20 mA Current Signal): The standard
method used by Flowline controllers and panel meters; this technology uses only the Red and Black wires from the MiniMe level transmitter. The White Wire is only used to calibrate the transmitter. The
transmitter is typically field programmed, such that the output is 4
mA for an empty tank and 20 mA for a full tank. The White wire is
only used to program the 4 mA and 20 mA settings and is not used
during normal
operation.
20 mA
R E L AY 1
INVERT
0%
R E L AY 2
RLY2A
DELAY
INPUT
RLY2B
LATCH
ON OFF
RLY1
P W R
RED
OFF SET
Required Cable Length: Determine the length of cable required
between the MiniMe and its point of termination. Allow enough
slack to ensure the easy installation, removal and/or maintenance of
the transmitter. The cable length may be extended up to a maximum
of 1000 feet, using a well-insulated, shielded wire from 14 to 20
gauge, depending on the overall cable run.
SPAN
BLACK
INVERT
DELAY
E A S Y CAL
100%
4
20
OP
UP
DOWN
SET
Wiring to a Two-Wire Loop Powered Indicator:
The MiniMe requires 14-28 VDC power and an indicator which
receives a 4-20 mA current input. Connect the Red wire of the MiniMe
level transmitter to the positive VDC terminal on the power supply.
Connect the Black wire on the LU12/LU13/ LU14 series to the (+) terminal on the loop indicator. Connect the (-) of the loop indicator to the
(-) of the power supply (See illustration below).
DC Power
Supply
WHITE
BLACK
14-28 VDC
RED
+
-
-
+
Wiring to a Typical PLC:
The MiniMe requires a PLC which provides a 14-28 VDC excitation
and receives a 4-20 mA current input. Connect the Red wire of the
LU12/LU13/LU14 series to the positive VDC power terminal.
Connect the Black wire on the MiniMe transmitter to the (+) channel
on the PLC. Connect the (-) of the PLC to the (-) of the power terminal (See illustration below).
4 mA
BLACK
RED
DC Power
Supply
6
14-28 VDC
4
+
5
3
-
2
1
Typical PLC
WHITE
0
A
Wiring to a Flowline Universal Panel Meter:
Connect the Red wire to the P+ (Positive 24 VDC) terminal on the LI1_
series panel meter. Connect the Black wire to the S+ (Signal Input) terminal on the LI1_ series panel meter. Jumper between the S- (Signal
return) terminal and the P- (Power return) terminal on the LI1_ series
panel meter (see illustration below).
WHITE
BLACK
RED
Universal Panel Meter
LI1_ Series
A H C
C L O
S D M S+ S- P- P+ L
L
VAC
Power
INSTALLATION
CALIBRATION
Step Six
Step Seven
FLOWLINE’s LU12/LU13/LU14 transmitter is commonly installed
in either a Tank Adapter or Flange. Installation requires a 1" NPT (G)
tank adapter or flange for the LU12 series and a 2” NPT (G) tank
adapter or flange for the LU13 or LU14 series.
Introduction:
1. Install the appropriate fitting (tank adapter or flange) in the top
wall of the tank. Prior to installation, make sure that the fitting
has been installed properly and checked for leaks. Use a proper
sealant at the time of installation to ensure a liquid-tight seal.
Secondly, make sure that the threads are not damaged or worn.
The MiniMe is typically calibrated in two steps, when the tank is empty
and when the tank is full. Either step can be done first and can be
changed at any time. Please note that the MiniMe can only be set at the
exact distance for the empty or full levels of liquids. The MiniMe can
be targeted at either the actual liquid or at a fixed object such as a wall
or mirror. Also note that the calibration time will increase as the measurement distance increases. At the maximum range of the transmitter,
calibration times can approach 30 seconds or longer.
2. Insert the Transmitter into the fitting and tighten to hand tight.
Empty Calibration - 4 mA Setting:
3. Always check for leaks prior to system start-up. To ensure proper installation, a complete leak test and simulation of actual
process conditions should be preformed.
1. Power down the LU12/LU13/LU14 series transmitter.
2. Position the transmitter at the exact distance for a 4 mA or empty
setting (see illustration below).
Tank Adapter
Tank Adapter Installation:
Choose a fitting which minimizes
interference to sound pulses. Fittings
with two sets of threads (T x T) will
increase interference and could
reduce the overall range of MiniMe.
Flange
4 mA
Red
White
Black
(+)
(-)
3. Connect the White Wire to the Black Wire (low side) - Negative
Terminal (see illustration above).
4. Add power to the transmitter.
LED
5. Wait until you see a the LED flash on the
LU12/LU13/LU14 series transmitter.
6. Power down the transmitter
7. Remove the White Wire from the
Red
(+)
Black Wire (low side) - Negative
White
Black
Terminal (see illustration). Secure the
(-)
White wire is a safe position so it can
Not Used
never come into contact with the
exposed Red or Black wires during normal operation.
8. Return power to the LU12/LU13/LU14 series transmitter for normal operation.
MiniMe
Flange Installation:
For optimum installation, choose the
Tank Adapter installation method. If
the MiniMe is installed in a Flange,
use a flange with a maximum height
of 12 inches (30.5 cm) and a minimum Inner Diameter of 3 inches (80
mm) for best results.
Depth
Inner Diameter
Warning
Full Calibration - 20 mA Setting:
Do not install the Minime™ in pressurized applications above 30 psi.
Always install the Viton gasket with all versions of the LU1_-5-61.
The G threaded version of the Minime will not seal unless the gasket
is installed properly and checked for leaks.
Use a proper sealant at the time of installation to ensure a liquidtight seal. Secondly, make sure that the fittings threads are not
damaged or worn.
Do not install
MiniMe at an
angle
Avoid installing
less than 2” from
side of tank
Avoid installing
MiniMe directly
above obstructions in tank
MiniMe will not
operate in
vacuum
1. Power down the LU12/LU13/LU14 series transmitter.
2. Position the transmitter at the exact distance for a 20 mA or full
setting (see illustration below).
20 mA
Red
White
Black
(+)
(-)
3. Connect the White Wire to the Red Wire (high side) - Positive
Terminal (see illustration above).
4. Add power to the transmitter.
LED
5. Wait until you see the LED flash on the
LU12/LU13/LU14 series transmitter.
6. Power down the transmitter
7. Remove the White Wire from the Red
Red
(+)
Wire (high side) - Positive Terminal
White
Black
(see illustration). Secure the White
(-)
wire is a safe position so it can never
Not Used
come into contact with the exposed
Red or Black wires during normal operation.
8. Return power to the LU12/LU13/LU14 series transmitter for normal operation.
MiniMe
VACUUM
CALIBRATION
MAINTENANCE
Step Eight
Step Nine
The Minime™ is factory calibrated with a pre-programmed measurement span. The 4 mA position is located at the maximum distance
from the transducer face of the LU12/LU13/LU14 series. The 20 mA
position is located at the dead band distance from the transducer face.
Refer to the chart below for the exact distances.
General:
Transmitter
EC4 setting
EC20 setting
LU12 series
LU13 series
LU14 series
120” (304.8 cm)
300” (762 cm)
480” (1219.2 cm)
2” (5 cm)
4” (10 cm)
8” (20 cm)
Testing the MiniMe:
1. Connect a multimeter in series to read the current output.
2. Verify that the current signal decreases as the distance from the
liquid to MiniMe increases.
3. Verify that the current signal increases as the distance from the
liquid to the MiniMe decreases.
Power
Supply
4
5
6
Power
Supply
19
20
21
The LU12/LU13/LU14 series transmitter itself requires no periodic
maintenance except cleaning as required. It is the responsibility of the
user to determine the appropriate maintenance schedule, based on the
specific characteristics of the application liquids.
Cleaning Procedure:
1. Power: Make Sure that all power to the transmitter, controller
and/or power supply is completely disconnected.
2. Transmitter Removal: In all installations, make sure that the tank
is drained well below a safe level prior to removal. Carefully,
remove the transmitter from the installation.
3. Cleaning the Sensor: Use a soft bristle brush and mild detergent,
carefully wash the transducer of the MiniMe. Do not use a harsh
abrasive such as steel wool or sandpaper, which might damage the
transmitter's surface. Do not use incompatible solvents which may
damage the PVDF transducer or the transmitters PP body.
4. Sensor Installation: Follow the appropriate steps of installation as
outlined in the installation section of this manual.
Factory Reset:
MiniMe can be reset to its original factory settings. The factory settings are reset individually (4 mA or 20 mA) and follow a similar procedure listed in Calibration. To reset MiniMe:
mA
1. Power down the LU12/LU13/LU14 series transmitter.
Black
Red
Black
Red
mA
2. Connect the White Wire to either the Red Wire (20 mA reset) or
to the Black Wire (4 mA reset).
4. Add power to the transmitter for approximately 2 seconds and
then power down.
5. To reset the other setting, switch the White Wire to the other terminal and repeat Step 4.
20 mA
6. Remove the White Wire from the Red or Black Wire. Secure the
White wire is a safe position so it can never come into contact
with the exposed Red or Black wires during normal operation.
7. Return power to the LU12/LU13/LU14 series transmitter for normal operation.
Unlike the Calibration procedure, the Blue LED will not flash when
doing the factory reset.
4 mA
LED Indication:
The Minime™ features a single LED indicator which is used for fail-safe and programming indication. During normal operation,
the LED will be OFF.
Factory Settings for LU12/LU13/LU14 Series Transmitter
LED
Calibration:
During calibration, the LED will flash once
when the 4 mA or 20 mA distance has been set within the MiniMe.
Please note that the calibration time will increase as the measurement
distance increases. At the maximum range of the transmitter, calibration times can approach 30 seconds or longer.
Fail-Safe Operation:
During normal operation, the LED will turn ON when the transmitter
does not receive a signal return (Loss of Signal), forcing the transmitter into a fail-safe mode. During the fail-safe mode, the current
will increase up to 22 mA and hold until the acoustic signal is reacquired. Once re-acquired, the LED will turn OFF and the current
will indicate the appropriate measured value. A flashing LED indicates that the distance the transmitter is reading is out of range with
respect to the 4 mA and 20 mA settings.
Transmitter
EC4 setting
EC20 setting
LU12 series
LU13 series
LU14 series
120” (304.8 cm)
300” (762 cm)
480” (1219.2 cm)
2” (5 cm)
4” (10 cm)
8” (20 cm)
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