Flowline L U80, LU81, LU83, LU84 Operating Manual
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Ultrasonic Li
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uid Level Tra
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smitter
80, LU8
L
, LU83
LU84 S
ries Ma
ual
Flowli
e, Inc. | 10500 H
mbolt Street, Los
Alamitos, CA 907
0 p 562.598.301
f 562.431.8507
w flowline.com MN301550 Rev C
2
Introduction / Table of Contents Step One
The EchoSpan
®
is a general-purpose ultrasonic level transmitter that provides a loop powered 4-20 mA output.
The 4-20 mA output can be used to provide the proportional level of liquid in any tank or vessel. The signal can
be connected to any device that accepts a loop powered 4-20 mA signal, such as a PLC, SCADA, DCS,
display, controller, etc.
NEW FEATURES
Simple configuration with push button configuration
Adjustable Loop Fail-Safe, Hold Last, Empty, Full, 21 mA, 22 mA
Easy to reverse mA output, 4-20 mA to 20-4 mA
Increased output filtering
TABLE OF CONTENTS
Specifications: ……………. ............................................................................................... 3
Dimensions: ………. ......................................................................................................... 3
Safety Precautions: .......................................................................................................... 4
Components: ........................................................................................................ 5
Features Guide: ................................................................................................... 5
Getting Started: ................................................................................................................ 6
Getting Around the TOP-LEVEL MENU: ............................................................. 6
Descriptions: ........................................................................................................ 7
Configuration: ……………………………………………………………………………………9
Hot to Enter the TOP-LEVEL MENU: .................................................................. 9
How to Configure UNITS: .................................................................................... 9
How to Configure the Operational Range Using Height & Fill-H: ....................... 10
How to Configure the Operational Range Using Target Calibration: ................. 11
How to Select Fail-Safe (SAFE) Current Output/ LOST: .................................... 12
Wiring: …………………….. ............................................................................................. 13
Analog Output: ................................................................................................... 13
Common Wiring to Displays, Controllers & PLCs: ............................................. 14
Installation: ………….. .................................................................................................... 16
Mounting Guide: ................................................................................................. 16
Installation in Existing Fitting: ............................................................................. 16
Metal Tanks: ...................................................................................................... 16
Fitting Selection: ................................................................................................ 17
Appendix: ……………. .................................................................................................... 20
How to Configure the DISPLAY: ........................................................................ 20
How to Reverse the Current Output (Rev mA): ................................................. 20
SETUP: ............................................................................................................... 21
Diagnostic (DIAG) Parameters: ......................................................................... 21
Reset: ……….. .................................................................................................... 22
Troubleshooting: ................................................................................................ 23
Warranty: ....................................................................................................................... 24
| 2 MN301550 Rev C2
Specifications / Dimensions Step Two
Range
LU80: 4" to 9.8'
(10 cm to 3 m)
LU81: 8" to 18.0'
(20 cm to 5.5 m)
Accuracy: ± 0.2% of range
Resolution: LU80: 0.019” (0.5mm)
LU81: 0.039” (1mm)
LU83: 0.039” (1mm)
LU84: 0.078” (2 mm)
Dead band: LU80: 4” (10cm)
LU81/83/84: 8” (20 cm)
Beam width: LU80: 2” (5cm) dia.
LU81/83/84: 3" (7.6 cm)dia.
Configuration: Push button
Memory: Non-volatile
Display type: LCD, 6-digit
Display units: Inch, feet, cm, meters or
percent
Supply voltage: 14-28 VDC
Loop resist.: 500 Ohms @ 24 VDC
Signal output: 4-20 mA, two-wire
Signal invert: 4-20 mA / 20-4 mA
Signal fail-safe: 4mA, 20 mA, 21 mA, 22 mA,
hold last
Process temp.: F: -4° to 140°
C: -20° to 60°
Temp. comp.: Automatic
Ambient temp.: F: -4° to 140°
C: -20° to 60°
Pressure: MWP = 30 PSI
Enclosure rating: NEMA 4X (IP65)
Encl. material: PC
Encl. hardware: Brass and stainless
Enclosure vent: Water tight membrane
Conduit entrance: Dual, 1/2” NPT*
Trans. material: PVDF, Viton
Process mount: LU80: 1” NPT/1” G
LU81/83/84: 2” NPT/2” G
Mount. gasket: Viton
®
Classification: General purpose
Compliance: CE, RoHS
* If using the Flowline LM90-1001 (liquid tight fitting)
on the ½” conduit, the cable minimum is 0.170”
(4.3mm) and the maximum is 0.450” (11.4mm).
LU83: 8" to 26.2'
(20 cm to 8 m)
LU84: 8" to 32.8'
(20 cm to 10 m)
Side View
LU80 Series
Side View
LU81, LU83 & LU84 Series
Top View
All Models
MN301550 Rev C2 3 |
Safety Precautions Step Three
About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS
PRODUCT. This manual includes information on the EchoSpan
®
series Ultrasonic Level Transmitter 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 professional staff should install and/or repair this product. Install
the sensor with the included Viton gasket and never over tighten the sensor within the fitting. Always check
for leaks prior to system start-up.
Wiring and Electrical: A supply voltage of 12 to 28 VDC is used to power the EchoSpan®. Electrical wiring
of the transmitter 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 sensor housing is liquid-resistant the EchoSpan® 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 flat-headed 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.
Note: If using the Flowline LM90-1001 (liquid tight fitting) on the ½” conduit, the cable minimum is 0.170”
(4.3mm) and the maximum is 0.450” (11.4mm).
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.
Warning: Always use the Viton gasket when installing the EchoSpan®, and make sure that all electrical
wiring of the switch is in accordance with applicable codes.
| 4 MN301550 Rev C2
Safety Precautions Step Three
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.
Flammable, Explosive or Hazardous Applications: EchoSpan
®
should not be used within classified
hazardous environments.
COMPONENTS
EchoSpan® is offered in three different models. Depending on the model purchased, you may or may not have
®
been shipped all the components shown below. You do however, need an EchoSpan
configure, install and operate EchoSpan
®
.
P/N Max. Range Dead Band Thread Enclosure
LU80-5101
LU80-5161
9.8’ (3m) 4” (10cm)
1” NPT
1” G
Type 4X
and Viton® gasket to
LU81-5101
LU81-5161
LU83-5101
LU83-5161
18.0’ (5.5m) 8” (20cm)
26.2’ (8m) 8” (20cm)
2” NPT
2” G
2” NPT
2” G
Type 4X
Type 4X
LU84-5101
LU85-5161
32.8’ (10m) 8” (20cm)
2” NPT
2” G
Type 4X
Viton Gasket
o Part #220128 – for LU80 series only
o Part #220129 – for LU81, LU83 and LU84 series
QUICK START GUIDE
FEATURE GUIDE
FEATURE ACCESS BY
Easy to use TOP-LEVEL
MENU.
Press and hold SELECT key (approximately 5 seconds) until MENU is
displayed. The items in the TOP-LEVEL MENU will rotate through
display, press SELECT to change an item.
Many UNITS of
measurement.
No cumbersome measure
required. Set point
distances are relative to
the tank bottom.
In the TOP-LEVEL MENU, press SELECT when UNITS is displayed,
then select INCHES, CM (centimeter), FEET, METERS or PERCNT.
In TOP-LEVEL MENU, select TANK 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. All of the set points are from the bottom of the tank up.
Optional target calibration. Use this feature if the tank liquid level is at an empty or full volume. This
feature will accept the current liquid level as either empty (TG CAL
EMPTY) of full (TG CAL FULL).
Fail-Safety Use the SAFE function to preset the output to either Empty (4 mA), Full
(20 mA, 21 mA or 22 mA) or Hold Last Value in case the transmitter
loses it’s signal (LOST).
MN301550 Rev C2 5 |
Getting Started Step Four
®
EchoSpan
®
can be configured before installation. The transmitter 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 (optional):
o If the sensor is to be used to provide
feedback to the control of pumps, valves
or alarms, you will need the measured
distance from the bottom of the tank to
each of the device’s set point(s).
Power:
o Provide input power to the EchoSpan
®
Note: The HEIGHT and Fill-Height (FILL-H) settings also determine the 4 to 20 mA current span. The HEIGHT
setting determines the 4mA position and the FILL-H setting determines the 20 mA position.
Getting Around the TOP-LEVEL MENU: EchoSpan
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 MENU
The TOP-LEVEL MENU will continue to scroll
through the items listed to the right until the
SELECT button is pressed.
To return to the Normal / Operational mode of
EchoSpan
®
, press SELECT while RUN appears
in the display.
| 6 MN301550 Rev C2
Getting Started Step Four
TOP-LEVEL MENU DESCRIPTIONS
UNITS – Allows end user to select the units for configuration and operation. Additional function allows the
display to show liquid level or air gap.
o Select between INCHES, CM (Centimeters),
Air Mode
Liquid Mode
FEET, METERS or PERCNT (Percent).
o Select between AIR or LIQUID for the display.
AIR configures display to show the air gap
in the tank.
LIQUID (factory default) configures display
to show the level of liquid in the tank.
This function does not influence the
current output, just the display on the
sensor.
o Press EXIT to return to the TOP-LEVEL MENU.
Note: Flowline recommends that when selecting PERCNT, configure the HEIGHT and FILL-H settings before
selecting PERCNT in order to span the EchoSpan
®
for your application requirements. If UNITS is set to
PERCENT, then TANK will not appear. To view TANK, set UNITS to any of the following: INCHES, CM
(Centimeters), FEET or METERS.
Note: Flowline recommends that when selecting PERCNT, keep the Display mode in LIQUID and to never
use the Display mode in AIR.
TANK – Allows the end user to configure the operational range for the switch as well as the 4-20 mA
output signal. Additional function allows the output current to be reversed.
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 Note: The 4 and 20 mA points are set by setting these
two points.
Fill-H sets the 20 mA set point and Height sets
the 4 mA set point. This is the factory default.
Use the REV MA setting to reverse the 4 and
20 mA set points.
o REV MA – Allows the current output to be reversed.
In NORM mode (factory default), 4mA is at bottom and 20mA is at top of the tank.
In REV mode, 4mA is at top and 20mA is at bottom of the tank.
o Press EXIT to return to the TOP-LEVEL MENU.
MN301550 Rev C2 7 |
Getting Started Step Four
SAFE – In the event the sensor does not receive an echo, the Fail-Safe Current Output or LOST setting
can be set to output a current of 4mA, 21mA or Hold (last known value).
o 22mA – Overfill fail-safe setting.
o 21mA – Overfill fail-safe setting.
o 20mA – Full fail-safe setting.
o 4mA – Empty fail-safe setting.
o HOLD – Keeps the current output at the last reading
when fail-safe condition occurs.
Note: During fail-safe, the display will read LOST.
TG CAL – Target Calibration (allows for the sensor to accept as either EMPTY or FULL the liquid level at
that moment. Liquid level must be at either the required EMPTY or FULL levels of liquid.
VALUES – Provides setup information, a diagnostic to be used in conjunction with a Flowline
®
Representative and the ability to reset the EchoSpan
o SETUP – Will display the setting for all functions of EchoSpan
.
®
.
o DIAG – 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.
o RESET – Will reset the EchoSpan
®
back to its original factory setting.
HELP – Provides information for contacting Flowline on-line.
RUN – Returns the unit to normal measurement and control mode.
| 8 MN301550 Rev C2
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