Omega | LVRD10 Series | Owner Manual | Omega LVRD10 Series Owner Manual

Omega LVRD10 Series Owner Manual
2
INTRODUCTION
Section One
The senor utilizes TDR (Time Domain Reflectometry) technology. It is best described as low‐energy, high‐
frequency electromagnetic impulses, generated by the sensor’s circuitry that is propagated along the probe as
it is immerged in the liquid to be measured. Impulses hit the surface of the media and part of the impulse
energy is reflected back up the probe to the circuitry. Level Measurement is calculated from the time
difference between the impulses sent and the impulses reflected. The sensor analyzes the level output as a
continuous measurement reading from its analog output. TDR‐Sensors are also known as Guided Radars or
Guided Wave Radars (GWR).
New Features
 Precise continuous level measurement in one device
 Complete galvanic insulation of device electronics from its inputs/outputs and the tank potential (no
problems with electrochemical corrosion protection)
 Highly robust measurement due to 3‐wire design, innovative signal analysis and disturbance signal
suppression
Table of Contents
Introduction: ......................................................................................................................................................... 3
Specifications: .......................................................................................................................................... 4‐5
Dimensions:................................................................................................................................................. 6
About this Manual: ..................................................................................................................................... 7
Getting Started (Setup Overview):.......................................................................................................................... 8
Part Numbers: ............................................................................................................................................. 9
Probe length:............................................................................................................................................. 10
Measurement Range: ............................................................................................................................... 13
Height of Liquid vs. Volume of Liquid: ...................................................................................................... 15
Installation (Mounting Considerations): ............................................................................................................... 16
Installation tips: ................................................................................................................................... 18‐21
Wiring (Analog Output):........................................................................................................................................ 22
Common Wiring to Displays, Controllers & PLCs:..................................................................................... 24
Configuration: ....................................................................................................................................................... 25
USB Fob interface: .................................................................................................................................... 25
Sensor configuration: ................................................................................................................................ 26
Tank shape selection:................................................................................................................................ 27
Dimensional Entry: .................................................................................................................................... 27
Tank level configuration: .......................................................................................................................... 28
Write to unit:............................................................................................................................................. 28
Empty Signal Scan: ................................................................................................................................................ 29
Appendix: .............................................................................................................................................................. 31
Echo Curve: ............................................................................................................................................... 31
Sensor configuration: ........................................................................................................................... 32‐34
Tank shape selection:........................................................................................................................... 34‐35
Dimensional Entry: ............................................................................................................................... 35‐36
Tank Level Confirmation: .......................................................................................................................... 37
Write to unit:............................................................................................................................................. 38
Cutting the Probe: ................................................................................................................................ 39‐41
Troubleshooting: ...................................................................................................................................... 42
Warranty/Disclaimer: ........................................................................................................................................... 43
3
INTRODUCTION
Section One
Electrical
Analog output:
4 to 20mA, 3‐wire
Total load resistance: < 250Ω
Lower range value: 4.0mA (span 0%)
Upper range value: 20.0mA (span 100%)
Response time:
5s
Supply voltage:
10 to 30VDC (reverse‐polarity protected)
Current consumption: <50mA at 24VDC
Start‐up time:
<6s
Cable terminals:
terminal block for wires 16 to 26 AWG (solid or stranded)
Measurement
Reference condition:
Accuracy:
Repeatability:
Resolution:
Probe type:
Rod:
Cable:
Coaxial:
Probe length
Rod:
Coaxial:
Cable:
Custom Probe
Rod:
Cable:
Coaxial:
Probe loading
Rod:
Cable:
Coaxial:
Top dead band:
Bottom dead band:
(dielectric constant [εr] =80, water surface, tank 01m, DN200 metal flange)
±3mm
<2mm
<2mm
4mm
4mm, type 7x19
21.3mm (0.843”) ½” pipe
Standard Lengths
LVRD11:
9.84’ (3.0m)
LVRD11‐3FT: 3.0’ (0.91m)
LVRD11‐6FT: 6.0’ (1.82m)
LVRD12:
9.84’ (3.0m)
LVRD12‐3FT: 3.0’ (0.91m)
LVRD12‐6FT: 6.0’ (1.82m)
LVRD13:
18.0’ (5.5m)
[can be ordered in 5mm (0.2”) increments from the reference point]
2’ to 9.8’ (0.61 to 3.0m)
3.3’ to 18’ (1.0 to 5.5m)
2’ to 9.8’ (0.61 to 3.0m)
Maximum lateral load:
Maximum tensile load:
Maximum lateral load:
100mm (4”)
50mm (2”)
6Nm… (0.2kg at 3 m)
5kN
100Nm… (1.67kg at 6 m)
Application Specifications
Intended Installation:
Rod:
Metallic tank or below grade concrete basin
Cable:
Metallic tank or below grade concrete basin
Coaxial:
Non‐metallic, plastic, fiberglass or metallic tank or below grade concrete basin
Dielectric [εr]
>1.8
Conductivity:
no restrictions
Density:
no restrictions
4
INTRODUCTION
Section One
Application Specifications (continued)
Process temperature
Rod:
F: ‐40° to 302°
Cable:
F: ‐40° to 302°
Coaxial:
F: ‐40° to 266°
Ambient temperature
Operation:
F: ‐13° to 176°
Storage:
F: ‐40° to 185°
Application pressure: ‐14.5 to 250 psi
Rate of level change: 1”/s
C: ‐40° to 150°
C: ‐40° to 150°
C: ‐40° to 130°
C: ‐25° to 80°C
C: ‐40° to 85°C
‐1bar to 17.2bar
Mechanical Specifications
Wetted materials:
Rod:
1.4404 / 316L SS, PEEK
Cable:
1.4404 / 316 SS, PEEK
Coaxial:
1.4404 / 316L SS, PEEK
Housing materials
Housing body and cover:
Aluminum alloy EN AC‐AlSi9Cu3 (DIN EN 1706), epoxy spray
coating (~70μm) other alloys and coatings on request.
cover o‐ring:
silicone rubber (Elastosil R 750/50)
screws; cover locking screw;
1.4301 / 304 external earth terminal
screw:
tin plated stainless steel 1.4301 / 304
Housing rating:
IP66, NEMA 4
Cable entries:
Single cable entry ½” NPT
Cord grip:
½” NPT, Ferrite Bead included
Cord grip mat’l:
Nylon
Cord grip Cable
Minimum Size: 0.170” (4.3mm)
Maximum Size: 0.450” (11.4mm)
Process mount:
¾”NPT
Compliance:
CE: EN61326‐1: 2013 & EN55011 Class A Group 1
CRN
RoHS
5
INTRODUCTION
Section One
Dimensions:
Rod
Coaxial
6
Cable
INTRODUCTION
Section One
About this Manual: PLEASE READ THE ENTIRE MANUAL PRIOR TO INSTALLING OR USING THIS PRODUCT.
This manual includes information on the LVRD10 series Guided Wave Radar Level Transmitter from Omega
Engineering®. 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: Omega Engineering® 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. Never
over tighten the sensor within the fitting. Always check for leaks prior to system start‐up.
Wiring and Electrical: A supply voltage of 10 to 30 VDC is required to power the LVRD10 Series. 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 metal. Make sure that it is chemically compatible with
the application media.
Enclosure: While the sensor housing is liquid‐resistant the LVRD10 Series is not designed to be operational
when fully immersed. It should be mounted to insure the enclosure does not come into contact with the
application media under normal operational conditions. The probe is designed for full liquid contact.
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.
Make a Fail‐Safe System: Design a fail‐safe system that accommodates the possibility of switch and/or
power failure. Omega Engineering® recommends the use of a redundant backup system and alarm in addition
to the primary system.
Flammable, Explosive or Hazardous Applications: The LVRD10 Series sensor is not certified for application
in a hazardous locations.
7
GETTING STARTED
Section Two
Setup Overview
Below highlights the initial steps in setting up your sensor for operation.
1. Check Part Number (Section Two)
a. Confirm that the sensor’s part number matches the ordered part number and all components
are provided with the model delivered.
2. Measure Probe & Installation (Section Two)
a. Prior to installation, measure the length of the probe. Confirm that the probe length matches
the actual installation location.
b. If the probe length is too long, refer to Cutting the Probe in Section 8.
c. Understand the location of the sensor’s Measurement Range as well as Minimum Fill‐Height
and Maximum Fill‐Height settings.
3. Install the sensor (Section Three)
a. Section 3 contains information on the location and mechanical installation of the sensor.
4. Wire the sensor (Section Four)
a. Section 4 contains information on electrical wiring and power requirements for the sensor.
5. Configure Sensor with LVCN414‐SW Software (Section Five)
a. Section 5 contains information on using the LVCN414‐SW configuration software.
6. Perform an Empty Scan (Section Six)
a. Section 6 contains information on how to run an empty scan.
b. An empty scan may not be required on a sensor that has a coaxial probe.
8
GETTING STARTED
Section Two
Components: LVRD10 Series is offered in 12 different models. Depending on the model purchased, you may or
may not have been shipped the configuration component shown below.
Part
Number
LVRD11‐B
LVRD11
LVRD11‐3FT‐B
LVRD11‐3FT
LVRD11‐6FT‐B
LVRD11‐6FT
LVRD11‐B
LVRD11
LVRD11‐3FT‐B
LVRD11‐3FT
LVRD11‐6FT ‐B
LVRD11‐6FT
LVRD13‐B
LVRD13
Maximum
Range
9.8’
(3m)
3.0’
(0.91m)
6.0’
(1.82m)
9.8’
(3m)
3.0’
(0.91m)
6.0’
(1.82m)
18.0’
(5.5m)
Probe
Style
Probe
Mat’l
Thread
Rod
316L SS
¾” NPT
Coaxial
316L SS
¾” NPT
Cable
316 SS
¾” NPT

Coaxial style probe1 ‐ includes rod, threaded
½” pipe and spacers

Cable style probe2 ‐ includes counterweight

Manual
9
Fob
Included
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Components
Housing, feed‐through,
rod style probe
Housing, feed‐through,
coaxial style probe1
Housing, feed‐through,
cable style probe2
GETTING STARTED
Section Two
Understanding Sensor Height
This is a critical setting for LVRD10 Series. Sensor Height defines the height of the sensor above the bottom of
the tank. The height value must take into account the shape of the tank and any risers, fittings, structures or
extensions associated with the tank or the installation (see examples below). The reference point for
definition of the Sensor Height is always the bottom of the mounting nut.
Simple
Tank
Cone Bottom Raises
Sensor Height
Dome Top Raises
Sensor Height (SH)
Sensor Off Center
Changes SH
Mounting Fixture
Raises Sensor Height
Simple Open
Top Tank
Sensor Extends into
Sump Lowering SH
Simple
Tank
Riser Raises
Sensor Height
Understanding Probe Length
The reference point for definition of the probe length [Length] is always the bottom of the threads [bottom of
the feed through (see below)]. Note: This is a different reference location from the Sensor Height. The probe
Length is an important mechanical dimension which is needed to make sure the probe physically fits into the
tank at the anticipated mounting location. Probe length has an influence on the actual measuring range of the
sensor, but it is a different aspect of the sensor.
Rod Probe
(LVRD11 Series)
Coaxial Probe
(LVRD12 Series)
Cable Probe
(LVRD13 Series)
Note: Sensor Height and Probe Length have different reference points for measurement.
10
GETTING STARTED
Section Two
Understanding Install Location Length
Measure the space below the actual installation location for the sensor. This distance (install length) must be
greater than the probe length. In many tanks, the install length corresponds to the height of the tank. With
dome top, cone bottom and horizontal tanks, include the added height of the curved surface. Be sure to take
into account the height of fittings, risers, tank flats etc. which may be added for installation. All of the above
can raise the bottom of the probe higher in the tank than what was originally expected resulting in a reduced
lowest level of measurement (see Measurement Range).
Tank with Flat Top
& Flat Bottom
Tank with Dome Top
& Flat Bottom
Horizontal
Tank
Dome Tops and Cone Bottoms
The location of an LVRD10 Series installed along the top of a dome top tank may have an effect on the
installation of the sensor. Be sure to measure from the actual point of installation. Round or cone bottom
tanks will reduce the install height available, depending on install location. If this occurs, either the sensor can
be raised using fittings (see Adding a Riser to Avoid Cutting the Probe) or the probe’s length may be reduced
by cutting the probe (see Cutting the Probe in Section 7).
Install Height >
Probe Length
Install Height <
Probe Length
11
Install Height >
Probe Length
GETTING STARTED
Section Two
Adding a Riser to Avoid Cutting the Probe
In some conditions, a riser may be added to avoid cutting the probe.
Rod and Cable Probes
With the Rod and Cable versions of
the probe, the maximum height for
the riser is 12” (300mm). The
minimum diameter of the riser is
2” (50mm). The riser must be
metallic in construction using the
least
number
of
fittings
/connections. Note: An Empty
Signal Scan is a requirement so
that the EchoWave® can eliminate
the odd geometry created by the
riser.
Least number of fittings
Coaxial Probes
With the coaxial probe, there is no
maximum riser height or minimum
riser diameter. This is because the
coaxial shield isolates the physical
changes to the installation from
the sensor’s energy signal. In both
examples, the energy signal cannot
see
any
changes
to
the
fitting/connections or from being
installed in an extension that
exceeds the maximum height for
rod and cable probes.
12
Too many Fittings
GETTING STARTED
Section Two
Understanding Measurement Range
LVRD10 Series level transmitters have small dead band areas at both the top and bottom of the probe. It is
due to the presence of unavoidable signal disturbances at both ends of the probe. In these dead band areas
the measurements are non‐linear or have reduced accuracy. Therefore, it is not recommended to actually
measure level within those dead band areas. Their length depends on the probe type and the reflectivity (i.e.
dielectric constant) of the liquid to be measured.
The Measurement Range of LVRD10 series extends between the top and
bottom dead band areas; this is the area in which a sensor will have the
specified measurement performance. It is recommended that the
maximum and minimum levels to be measured in the tank are actually
within the Measurement Range of the sensor. The span between the
lower range value [4mA] and the upper range value [20mA] of the
current output is proportionally equal from 0 to 100% of your
continuous level measurement reading. It is recommended that the
span between these two range values stays within the Measurement
Range.
The [Top Dead Band], closest to the threads, is set to 4” (100mm). This
is measured from the bottom of the nut down to the probe. This is
consistent for all styles of probe. Note: the measurement location for
the Top Dead Band is different to the measurement location for the
probe length.
The [Bottom Dead Band], closest to the end of the probe, is set to 2”
(50mm). This is measured from the end of the probe on rod and coaxial
probes. For cable probes, it is measured from the top of the counter‐
weight. The counter‐weight must be included with the dead band as the
sensor’s inactive area.
13
GETTING STARTED
Section Two
Understanding Minimum Fill‐Height (putting it all together)
LVRD10 Series has a Minimum Fill‐Height (Min. Fill‐H), which is measured
from the bottom of the tank to the top of the Bottom Dead Band. As
shipped from the factory, Min. Fill‐H is where the 4mA current is located
and is the lowest point on the probe where the sensor can detect a liquid
level. Any point below this position will stop at 4mA. The Min. Fill‐H is
influenced by the Sensor Height (SH), Probe Length (P), Height of the
Threads [0.65” (16.5mm)] and Bottom Dead Band.
Min. Fill‐H = (SH) – [0.65” (16.5mm)] – (P) + (Bottom Dead Band)



With a cable probe, include the height of the counter‐weight.
Switch output to volumetric will allow Min. Fill‐H to be set to (0).
If the 4‐20 mA output is reversed (20mA at bottom and 4mA at
top), then the level will max out at 20 mA when the level falls below the Min. Fill‐H.
Note: Because of the bottom dead band, the Minimum Fill‐Height can never be at the end of the probe.
Note: The configuration of the sensor (Distance or Volume) will affect the current output at Minimum Fill‐
Height. Upon selecting Distance, the current will be set to 4mA at Min Fill‐H. However, upon selecting volume,
the current at Min Fill‐H will be the calculated based upon 4mA being set at the bottom of the tank [see
Distance (Height of Liquid) vs. Volume of Liquid].
Understanding Maximum Fill‐Height
LVRD10 Series has a Maximum Fill‐Height (Max. Fill‐H), which is measured from
the bottom of the tank to the Top Dead Band. As shipped from the factory, Max.
Fill‐H defines the 20mA current depicting the highest point on the probe where
the sensor detects liquid level. Any point above this position will stop at 20mA.
The Max. Fill‐H is influenced by the Sensor Height (SH), Height of the Threads
[0.65” (16.5mm)] and Top Dead Band.
Max. Fill‐H = (SH) – [0.65” (16.5mm)] – (Top Dead Band)


The Max. Fill‐H may be decreased to lower the 20mA location, but it
cannot be raised above its original setting.
If the 4‐20 mA output is reversed (20mA at bottom and 4mA at top), then
the level will max out at 4 mA when the level rises above the Max. Fill‐H.
Note: Because of the top dead band, the Maximum Fill‐Height can never be at the bottom of the threads.
14
GETTING STARTED
Section Two
Distance (Height of Liquid) vs. Volume of Liquid
With the LVCN414‐SW software, the LVRD10 series can be configured to operate as a device that reads the
distance (height of liquid) or volume of a liquid. The location of the empty current will adjust depending on
which configuration method is selected. Note: The empty (4mA) location is placed at a different location
based upon selecting liquid height or liquid volume.
Distance (Height of Liquid): When the LVRD10 Series is configured to
read the height of the liquid, the default for the sensor Empty will be at
the bottom of the measurement range (end of the probe minus the
bottom dead band). This is where 4mA will be set. The default for
sensor Full will be at the top of the measurement range (Top Dead
Band), where 20mA will be set. The 20mA can be set by the Maximum
Fill‐Height.
Volume of Liquid: When the LVRD10 series is configured to read the
volume of liquid, the output will track the volume of the tank as the level
increases and decreases. Like Distance, the Empty and Full settings will
default to the low and high end of the Measurement Range. The
location of the 20 mA can be adjusted with the Maximum Fill‐Height
settings. However, the shape of the tank can influence the current
output, depending upon the tank being linear or non‐linear (see below).
Linear Tank Example
Non‐Linear Tank Example
Note: In the above illustration, 10” of liquid will
always be equal to 100 gallons of liquid (1” = 10
gallons).
Note: In the above illustration, 1” of liquid does not
equal 10 gallons. The 10” at the bottom represents a
rise of 62.8 gallons. As a change between 10” and
20” represents an increase of 109.6 gallons (i.e. 172.4
gallons – 62.8 gallons).
15
INSTALLATION
Section Three
LVRD10 series is mounted vertically into the tank via its connection thread. It is then
screwed directly into a standard threaded tank connection, i.e. tank adapter, bushing, weld‐
in socket, or it can be screwed into a flange which is connected to a tank nozzle.
The sensor should not be welded directly into the tank. Neither should flanges be welded
onto the sensor. Welding on the metal parts of LVRD10 Series will cause serious damage to
the transmitter.
Do not lift or handle the LVRD10 series by its probe: this will cause excessive stress on the
probe connection. LVRD10 Series should be handled by the hexagon or the lower section of
the housing. Do not screw in the sensor by its housing. It should be tightened only via its
hexagon (wrench size 32mm).
The end user has to ensure proper sealing of the sensor connection; based upon process
conditions, i.e. temperature, pressure and resistance against the process liquid’s
atmosphere.
For NPT thread connections, pressure‐tight joints require a sealant directly on the threads.
In the case that the sensor is delivered with a detached probe (cable version only), attach the probe onto the
small threaded stud below the hexagon. Make sure to avoid cross threading or misaligning the threads.
Mounting Considerations
The probes should be installed so that they are not directly impacted by liquids flowing out of the filling inlet.
They should neither touch nor sway towards other objects inside the tank or the tank/nozzle walls; e.g. by
agitator or mixer swirls. In applications with very strong fluid movements which can also cause excessive
lateral force on the probe, it is recommended to anchor the probe. The anchoring fixtures are end user
supplied.
16
INSTALLATION
Section Three
Mounting Considerations (continued)
The rod and cable probes are suitable for a very wide range of applications in
liquids. However, the signal has a wider detection radius around the rod/cable.
Therefore, it is more responsive for measurement signal disturbances that are
overcome by a few Mounting Considerations (see below) as well as simple
configuration adjustments to the sensor. In most cases it is enough to activate
and utilize the powerful LVRD10 series empty signal scan feature. It works
most efficiently on stationary interference targets like tall and narrow nozzles
or close‐by objects.
In case a non‐stationary interference target is close to the rod probe, like slowly
rotating agitator blades causing problems with the measurement, it is
recommended to use the coaxial probe. In any case, the rod and cable probes
should never get in direct contact with the tank/nozzle wall or other objects in the
tank.
Rod
>2” (50mm)
Cable
>2” (50mm)
Coaxial
+(1)
nozzle height
<12” (300mm)
<12” (300mm)
clearance to tank wall or other internal objects
>4” (100mm)
>4” (100mm)
+
+
clearance between probe end and tank bottom
>0.1” (2mm)
>0.1” (2mm)
+
diameter of bypass chamber / stilling well
>1” (25mm)
>1” (25mm)
+(2)
+
+
+
nozzle diameter
metallic tank or below grade concrete basin
Non‐metallic or plastic tank
NR
NR
+
+
= recommended
+(1) = enough diameter to fit in the coaxial tube (0.843” / 21.3mm)
+(2) = enough diameter to fit in the coaxial tube (0.843” / 21.3mm) with allocated room around the
probe for liquid flow through the bypass chamber / stilling well
NR = Not Recommended
The rod probe is also the recommended probe type for mounting the LVRD10 series into bypass chambers or
stilling wells. In this case, plastic centering spacers are needed to prevent the probe from contacting the wall.
The cable probe is recommended for installations in tall tanks where limited installation headroom is
available. Its performance characteristics and mounting considerations are similar to the rod probe.
The coaxial probe does not have restrictions regarding mounting position, tank connection, proximity to the tank
wall and other objects inside the tank. The coaxial probe is recommended for installing LVRD10 series into a
non‐metallic tank or open pit
17
INSTALLATION
Section Three
Installation Tips
Tall and Narrow Risers
Rod and Cable probes can be installed in tall and narrow risers
under the following criteria:
 Nozzle Diameter must be >2” (50mm),
 Nozzle Height must be <12” (300mm),
 Riser must be metallic,
 An empty signal scan is required after installation.
Coaxial probes are not affected by tall and narrow risers.
Difficult Tank or Riser Geometries
Rod and Cable probes must follow the criteria below:
 Tall and Narrow Risers criteria must be
followed,
 Nozzle diameter remains the same diameter,
 Nozzle Diameter does not decrease,
 Nozzle Diameter may get larger, but a empty
signal scan is required.
Coaxial probes are not affected by the shape of the
tank or the geometry of the nozzle as the above is not
applicable.
Close to Side Wall or Internal Obstructions
Rod and Cable probes must follow the criteria below:
 >4” (100mm) from the side wall,
 >4” (100mm) from any objects or obstructions within the
tank,
 A empty signal scan may be required after installation.
Coaxial probes are not affected by the distance from the side
wall or from other objects / obstructions within the tank.
Moving Probe
Rod and Cable probes must follow the criteria below:
 Avoid applications where the movement of the tank will cause the
probe to swing or touch objects and obstructions in the tank or the side
wall of the tank.
 Avoid applications where the tank is truck/vehicle mounted.
Coaxial probes are not affected by the movement of liquid within a stationary
tank.
18
INSTALLATION
Section Three
Installation Tips (continued)
Liquid Spray
Rod and Cable probes must avoid any liquid that sprays or pours
onto the probe.
Coaxial probes are not affected by liquid spraying on parts that
are above the liquid surface. However, avoid installing probe
where liquid will pour onto the probe.
Non‐Stationary objects
Rod and Cable probes follow the criteria below:
 >4” (100mm) from any objects or obstructions within the
tank,
 An empty signal scan may be required after installation,
 Non‐stationary objects must not be moving when empty
signal scan is preformed.
Coaxial probes are not affected by the movement of non‐
stationary objects, such as mixer blades or pump lifting chains.
Note: All probes (rod, cable and coaxial) can be affected by any
liquid vortex created by a mixer.
Measurement readings at the very top or bottom of the tank
Rod and Cable probes do not have the outer tube and must
adhere to all mounting requirements, specifically:
 >4” (100mm) from any objects or obstructions within the
tank, including the bottom of the tank,
 Criteria for difficult tank or riser geometries must be
followed.
Coaxial probes can easily be mechanically mounted to ensure the
measurement of liquid up to a full or empty tank. Because the
coaxial is encased within the outer tube, the sensor is self‐
contained so other objects or obstructions are not an issue. This
makes raising or lowering the sensor simple and straight forth.
19
INSTALLATION
Section Three
Installation Tips (continued)
Non‐metallic tanks
Unlike coaxial, rod and cable probes have no containment
mechanism. This energy must be contained by the tank wall,
requiring that all rod and cable probe sensors be installed in
metallic tanks or within below grade concrete sumps.
Coaxial probes can be installed in any type of tank, including
non‐metallic tanks. This is because the outer tube acts as an
insulator preventing the sensor’s energy emanating beyond the
probe.
Stilling Wells / Bypass Chambers
Installations within a stilling well or a bypass chamber are
recommended with a rod probe. A metallic pipe is required. A coaxial
probe can be used in a stilling well or bypass chamber if required.
Note: Never use a cable probe within a stilling well or bypass chamber.
 Make sure that the probe does not come into contact with the
inner wall of the stilling well or bypass chamber
o Non‐metallic spacers may be required to keep the probe
within the center of the stilling well or bypass chamber
 Make sure the liquid is able to freely fill, empty and that no
residue remains within the stilling well or bypass chamber.
 All other mounting criteria must be observed
 A empty signal scan may be required after installation
Limited headroom
When installing in a tank where there is limited space above the top of
the tank, the cable probe is the recommended solution. The cable
probe design allows for the probe to be installed through a small space
above the tank.
The rod and coaxial probes may be installed as long as the probes are
not damaged or bent and as long as the sensor is not held by the probe
(sensor must be held by the head).
 All other mounting criteria must be observed.
20
INSTALLATION
Section Three
Installation Tips (continued)
Tall Tanks
The rod and coaxial probes have a maximum insertion length of
9.8’ (3m). For metal or concrete tanks that are taller/deeper, the
cable probe can be used for lengths up to 18.0’ (5.5m).
 The maximum length is based from the bottom of the
threads.
o Note: the coaxial probe consists of a rod probe
with a metal outer tube installed around the
original rod. The bottom of the mounting threads
are used as the reference point for measurement.
Side Mount Brackets (LMV‐30 Series)
Rod and Cable probes can be installed with the side mount bracket under the
following criteria:
 The side wall or any object / obstructions do not come within 4”
(100mm) from the probe
 Any movement of the liquid will not cause the probe to swing into the
side wall or any object / obstruction
 The tank must be metallic or a below grade concrete basin
 An empty signal scan may be required after installation
 A metal plate of 6” in diameter may be required if there is no roof to the
tank/basin
Coaxial probes are not affected by the side mount bracket.
Probe Too Long
For information on cutting the probe, see Cutting the Probe within the Appendix, Section 7.
21
WIRING
Section Four
Analog Output (4‐20 mA): The analog output of the LVRD10 Series is a sourced 4‐20 mA control circuit. The
typical way to use this feature is to connect a positive supply to the (+) input terminal, a negative supply to the
(‐) input terminal and to connect the current output out of the 420 (+) terminal. The device that accepts the 4‐
20 mA current signal must reference the same negative supply listed above (see diagram below).
Sample Wiring Diagram
Diagram will change based upon
the sensor’s configuration, use
LVCN414‐SW software to view
appropriate wiring diagram.
The cabling should be shielded and twisted to minimize EMI interference. Its shield should be connected at either
end and never connected at both ends. Typically 18 to 24 gauge wire is used in this application.
General Notes for electrical connections, usage and safety:
 Where personal safety or significant property damage can occur due to a spill, the installation must
have a redundant backup safety system installed.

Wiring should always be completed by a licensed electrician.

Protect the sensor from excessive electrical spikes by isolating the power, whenever possible.

Supply voltage should never exceed 30 VDC.

Make sure that the power supply does not have a current more than 2A or that there is 2A rated fuse
in the electrical circuit that energizes the device.

The sensor materials must be chemically compatible with the liquids to be measured.

Design a fail‐safe system for possible sensor and/or power failure.

Never use the sensor in environments classified as hazardous.
22
WIRING
Section Four
Wire Connections
The housing has single cable entry and can be attached to screw plugs, cord grips or conduit with the ½” NPT
thread. Note: the customer must confirm the suitability of those connectors for the specific application
requirements and cabling; and replace them when necessary. IP66‐rated screw plugs and cord grips have to
be properly mounted and tightened around cable of suitable type and diameter to ensure the IP66 rating of
the housing.
Note: A liquid‐tight cord grip and ferrite bead are included with the Ferrite Bead
sensor (see Specification Section for cord grip data).
Liquid‐Tight Cordgrip
Note: Always include the ferrite bed when using the cord grip or
when using non‐metallic conduit.
Note: Always shield the signal wire per instructions on the wiring diagram.
Conduit Connection
Cable Gland (Liquid Tight) w/ Washer
Avoid Condensation in the Conduit
You can give your instrument additional
protection against moisture penetration
by leading the conduit connection or cable
downward in front of the cable entry.
Condensation in the conduit will thus not
enter the sensor enclosure.
23
WIRING
Section Four
Common Wiring to Display, Controllers & PLC’s (continued)
Generic Loop
Powered Display
Generic PLC
DataPoint™ LVCN‐51 Series
Level Controller
JWB mode
Note: LVCN‐51 shipped from factory with jumper in JWA mode. Jumper must be switched to JWB mode for
operation with the LVRD10 Series.
Note: 4‐20 mA signal wire requires shielding (power supply wires may use the same shielding as the signal
wire). Shield wire can be connected at either end. Never connect shield wire at both ends.
Note: LVRD10 Series is a 3‐wire sensor and should never be treated as a 2‐wire loop powered device. Follow
the illustrations above for wiring to the most common devices.
24
CONFIGURATION
Section Five
LVRD10 Series is configured through a free PC software program (LVCN414‐SW, version 6.5 or greater). The
software is a free download from Omega Engineering®’s website. You must download and install the
software prior to plugging in the USB® Fob.

Please go to http://www.omega.com/ftp.

Click on Flow, Level, pH, Environmental, and Pressure Section and press on Products.

Select the installer – LVCN414InstallerVerXpXX.zip.
o This will download the installer onto your computer.
o Once completed, run the installer.
LVCN414‐SW Software System Requirements
Windows® 2000, XP, Vista, 7, 8
32 or 64‐bit system
1 USB® 2.0 port
10 mB hard drive space
256 mB RAM
Internet connection
USB® Fob Interface: LVRD10 Series communicates with the LVCN414‐SW software through a USB® interface
called a Fob. Before plugging your Fob into your computer’s USB® port, be sure that you have installed the
software onto your computer.
Connect the red, green, white and black terminals on the Fob to the corresponding terminals within the
LVRD10 Series. Tighten the screws on the terminals and plug your Fob into the USB® port of your computer.
Wiring is identical for all series of LVRD10 Series

The maximum cable distance between the computer and LVRD10 Series is 15’. This only applies when
configuring the LVRD10 Series.

Once LVRD10 Series is configured and prior to installation, disconnect all wires from the center two
terminals to prevent a short of the configuration circuit

Note: When using the Fob, do not add VDC power. The Fob, when connected to the computer, will provide
the required power to the LVRD10 Series.
25
CONFIGURATION
Section Five
With LVRD10 Series connected to your computer, open the LVCN414‐SW software by clicking on the
software’s icon. Follow steps A to D to configure the transmitter. Click “Help” in the lower right hand corner
and open the help menu for additional instructions on the software. If you need additional assistance using
the LVCN414‐SW software, please contact an Omega Engineering® application engineer.
Configuring LVRD10 Series with the LVCN414‐SW Software
A. Sensor Configuration
1. Configures Loop Fail‐Safe, Output at Empty, Startup Condition & Dielectric Range for the sensor.
2. Also confirm Probe Type (Rod, Coaxial or Cable) in the pull down menu.
B. Dimensional Entry
1. Distance Mode (default)
i. Basic information for operation (Sensor Height, Probe Length & Maximum Fill‐Height).
2. Volumetric Mode
i. Defines the shape of the tank as well as the dimensional information for the tank with
respect to the sensor’s location on the tank.
C. Tank Level Confirmation
1. Confirm the values are accurate for the application.
D. Write to Unit
1. Uploads configuration into the sensor.
2. Access to a customer wiring diagram specific to the relay configuration.
A. Sensor Configuration:
26
CONFIGURATION
Section Five
B. Dimensional Entry:
1. Distance Mode (default): Output of sensor is based on the distance (height of liquid) in the tank.
Any change in liquid level will reflect linearly to the current output. Note: Most applications will fall
into this category. The three settings you must enter for Distance Mode are Sensor Height, Probe
Length and Maximum Fill‐Height. All three settings can be entered on the main configuration screen.
2. Volumetric Mode: Allows the end user to switch from the standard distance output to an output
based upon the volumetric shape of the tank. In Volumetric Mode, the shape of the tank is first
selected followed by the entry of dimensional information for the tank with respect to the sensor’s
location on the tank.
Enter the operational dimensions for the sensor and tank within the defined application. All of the
shown dimensions are required and will adjust depending on tank shape whether the operation is for
volume or distance. Press Apply when information is completed.
Note: While in Volumetric Mode, the sensor may be switched between Distance and Volumetric
outputs (under Sensor Output Units). When Distance is selected the units are inches, cm, feet or
meters. When Volume is selected, the units are Gallons or Liters. The type of configuration
output (Volumetric or Distance) and the measured units may be changed under Sensor Output
Units.
27
CONFIGURATION
Section Five
D. Tank Level Confirmation: Verify the Height Units, Sensor Height, Probe Length, Maximum Fill‐Height,
Minimum Fill‐Height, Capacity as well as the Max./Min. Volume and Max./Min. Current. All values were
calculated in the previous Dimensional Entry window. To adjust these settings, click on Volumetric Modes.
E. Write to Unit – This operation uploads configuration into the sensor. Other features in the section include
providing a custom wiring diagram specific to the signal output and saving the configuration file to your hard
drive.
Volumetric Sensor Output
The Volumetric Mode button will
be highlighted in Blue when a
volume output is selected.
28
EMPTY SIGNAL SCAN
Section Six
Empty Signal Scan
The empty signal Scan is a powerful disturbance signal suppression feature of LVRD10 Series. The sensor
scans its entire probe length for any disturbance/interference signals within the application that could
potentially be misinterpreted as level readings by memorizing and suppressing them during operation.
Therefore, the LVRD10 series only recognizes the actual level signals caused by the liquid being measured.
The empty signal scan is intended for the rod & cable probe, since its signal has a wider detection
radius around the probe making it more responsive for measurement signal disturbances.
The empty signal scan works most efficiently on stationary interference targets like tall and narrow risers or
close‐by objects/obstructions. To enable an empty signal scan, the LVRD10 series has to be mounted in its
final position. The tank has to be completely empty. This will ensure a reliable identification of the actual
disturbance signals only. In case there are non‐stationary interference targets close to the rod probe (slowly
rotating agitator blades or streams of liquid filling into the tank), it is recommended to use the coaxial probe.
Activate Empty Signal Scan
When LVRD10 Series is shipped, this feature is deactivated. To initiate a
empty signal scan, use the following instructions:
1. Make sure the LVRD10 series is installed in its final installation
position.
2. Make sure the liquid is at its lowest level (empty).
a. Performing an empty signal scan when the tank is not
empty will create an incorrect scan. It can affect the
sensors performance especially at liquid levels below the
empty signal scan tank level.
3. Press and hold the SCAN button for 6 seconds.
a. The LED will begin to flash Orange indicating the empty
signal scan has begun, release the button.
b. Upon completion of the empty scan, a solid green LED will return
c. If the empty scan is not successful. The LED will flash red
Erase Empty Signal Scan
If there is a need to erase or turn off the empty signal scan, perform the following: First remove power to the
LVRD10 Series. Next, hold down the SCAN button while applying power to the sensor. When the LVRD10
series acquires a signal (LED will flash Green), the disturbance signal scan will be erased.
 No other setting or functions will be affected when this step is preformed.
 The empty signal scan cannot be retrieved once erased.
 A new disturbance signal scan must be preformed for this function to operate again.
The empty signal scan can also be erased using the LVCN414‐SW software. Please refer to the instructions in
the Appendix.
29
EMPTY SIGNAL SCAN
Section Six
Viewing the Empty Signal Scan
The Empty Signal Scan can be viewed with the LVCN414‐SW software (version 6.5 and greater). Note: Always
consult a Omega Engineering® representative for reviewing of the signal data. To view, follow the directions
below:
1. Activate an empty signal scan (see instructions in Empty Signal Scan, Section 6).
2. Connect LVRD10 Series to LVCN414‐SW software via Fob
3. Click on Diagnostics Tab on the main screen
4. In the Select Signal Data pull down, select Empty Scan.
5. The empty signal scan will be displayed in the window.
Erase Empty Signal Scan with LVCN414‐SW Software
If there is a need to erase or turn off the empty signal scan, perform the following:
1. Disconnect the sensor from the application wiring.
2. Connect LVRD10 Series to LVCN414‐SW software via Fob.
3. Click on Diagnostics Tab on the main screen.
4. Click on Erase Empty Signal Scan.
30
APPENDIX
Section Seven
Echo Curve
This function displays the primary echo return(s) that the sensor is seeing graphically as well as the location
and amplitude of the return(s). It can be used to confirm the correct level reading by the sensor or to
troubleshoot any false signals. There is a two step process involving the creating and viewing of an echo
curve. Note: Always consult a Omega Engineering® representative for reviewing of the signal data.
#1 ‐ Create an Echo Curve
To create an echo curve, use the following instructions:
1. Make sure the LVRD10 series is installed within the actual
application.
a. Echo curve will not provide any useful information when
placed outside of the application.
2. Press and hold the SCAN button for 1 second (LED will turn off),
then release.
3. Echo curve is completed.
a. To view, you must connect the sensor to the LVCN414‐SW
software.
Note: LVRD10 series can store up to a total of three empty signal scans and/or echo curve. Example: If an
empty signal scan is active, LVRD10 Series will only store two echo curves. If an empty signal scan is not active,
three echo curves can be stores. Echo curves follow a first in first out logic.
#2 ‐ Viewing the Echo Curve
The echo curve(s) scan can be viewed with the LVCN414‐SW software (version 6.5 and greater). To view,
follow the directions below:
1. Create an echo curve (see
instructions above).
2. Connect LVRD10 Series to the
LVCN414‐SW software via Fob
3. Click on Diagnostics Tab on
the main screen
4. In the Select Signal Data pull
down, select Echo Curve.
5. The echo curve will
displayed in the window.
be
31
APPENDIX
Section Seven
A. Sensor Configuration
Loop Fail‐Safe
This feature allows you to select the fail‐safe current output if the sensor
looses echo confidence (LOST). When the sensor regains echo
confidence, the output current will revert back to the current level
condition.

Hold Last Value ‐ The output will remain in the same state as
the last confident echo detected. Example: If the output was
6.7mA just prior to the lost signal, the sensor will continue to
output 6.7mA until echo confidence is regained.

Empty ‐ The output will revert to the current value for an
empty condition. When 4 mA at Bottom is selected, the sensor
will output 4 mA during a fail‐safe condition. If 20 mA at
Bottom is selected, the sensor will output 20 mA during a fail‐
safe condition.

Full ‐ The output will revert to the current value for a full
condition. When 4 mA at Bottom is selected, the sensor will
output 20 mA during a fail‐safe condition. If 20 mA at Bottom
is selected, the sensor will output 4 mA during a fail‐safe
condition.

Overfill (21mA) ‐ The sensor will output 21mA during a fail‐safe
condition.

Overfill (22mA) ‐ The sensor will output 22mA during a fail‐safe
condition.
Output at Empty
This feature allows you to select the orientation of the 4 to 20mA output
(4 to 20 mA or 20 to 4 mA). Choose which output setting best fits the
application. Typical applications are set with 4 mA at Bottom. Factory
default is 4mA at bottom and 20mA at top. When connecting your
sensor to a display, you must account for your output orientation setting.

4mA at Bottom ‐ The output current will be 4mA when the
sensor measures an empty tank and 20mA when the sensor
measures a full tank.

20mA at Bottom ‐ The output current will be 20mA when the
sensor measures an empty tank and 4mA when the sensor
measures a full tank.
Note: Right click on any item to open the help menu.
Note: To reset the configuration table, press the Clear Screen button
32
APPENDIX
Section Seven
A. Sensor Configuration
Startup Condition
This feature allows you to select the startup current when power is first
applied to the sensor. The sensor will consume the selected power
while it is acquiring the liquid level. When the correct level has been
identified, the output will adjust to the level output. Use this feature
to avoid false alarms with the controller when power is first applied to
the sensor.

Empty ‐ The current output will revert to the selected current
value for an empty condition.
o 4 mA at Bottom ‐ The sensor will output 4 mA while the
sensor powers up.
o 20 mA at Bottom ‐ The sensor will output 20 mA while the
sensor powers up.

Mid Tank (12 mA) – The sensor will output 12 mA while the
sensor powers up.

Full ‐ The output will revert to the selected current value for a full
condition.
o 4 mA at Bottom ‐ The sensor will output 20 mA while
powering up.
o 20 mA at Bottom ‐ The sensor will output 4 mA while the
sensor powers up.

Overfill (22mA) ‐ The sensor will output 22mA while the sensor
powers up.
Probe Type
This feature allows you to select the type of probe attached to the
feed‐through. It is critical to select the correct type of probe.

Rod ‐ Recommended for installations in liquids, in bypass
chambers and stilling wells (when combined together with the
rod emulate a coaxial probe).

Cable ‐ Recommended for installations in tall tanks and where
limited headroom is available.

Coaxial ‐ Recommended for the use with clean liquids only. It
cannot be used with viscous, crystallizing, adhesive, coating, or
sticky liquids; fibrous liquids, sludge, slurry, pulp or any liquids
containing solid particles.
Note: Only change the probe type when the probe has been physically changed. Never change this setting to
improve sensor performance. This will only cause issue with the operation of LVRD10 Series.
Note: Right click on any item to open the help menu.
Note: To reset the configuration table, press the Clear Screen button
33
APPENDIX
Section Seven
A. Sensor Configuration
Dielectric Range
This feature allows you to select the dielectric range, which sets the
amplitude threshold within the sensor.



Water based media (water, H2SO4, HCl)
o 40 to 100
o 20 to 39.9
o 10 to 19.9
Varying dielectrics (Alcohols, Ethyl Acetate, Caster Oil)
o 9 to 9.9
o 5 to 5.9
o 8 to 8.9
o 4 to 4.9
o 7 to 7.9
o 3 to 3.9
o 6 to 6.9
Typical Hydrocarbons (Diesel Fuel, Mineral Oil, Solvents)
o 2 to 2.9
Note: It is very important to select the correct range for the dielectric value of the liquid. Choosing an
incorrect range will affect the performance of the sensor.
Note: Right click on any item to open the help menu.
Note: To reset the configuration table, press the Clear Screen button.
B. Tank Shape Selection
The sensor may be configured in
volumetric units (Gallons or Liters) or
Distance (Height of Liquid) units (inches,
cm, feet or meters).
LVCN414‐SW
software will default in Distance (Height of
Liquid) with units of Inches. To change the
units or to change from Distance to
Volume, press the Volumetric Mode
button located near the center of the
window.
Note: The Volumetric Mode button will be
highlighted in Blue when a volume output is
selected.
34
APPENDIX
Section Seven
Shape Selection Window: This window will shows the different tank shape options available.
 Vertical Cylinder

Vertical Cylinder with Cone Bottom

Horizontal Cylinder with End caps

Horizontal Cylinder with Spherical Ends

Spherical

Rectangular

Strapping Table – Use this feature for manual entry
of measured tank distances and volumes.
Select any of the above tank shapes and press OK to
confirm.
C. Dimensional Entry – Vertical Cylinder Example: Choose the Sensor Output Units as Distance or Volume.
After choosing the Sensor Output Units, select the units of measurement in the pull down to the left.
Units of Measurement
Distance
Volume
Inches
Cm
Gallons
Feet
Liters
Meters
Distance – Sensor Output Units (Vertical Cylinder Example):
Enter the dimensions of the tank. You must
enter data in all fields shown.
Sensor Height: Distance from the bottom of
the tank to the top of the threads.
Max. Fill Height: Distance from the bottom
of the tank to the operational full level of
liquid (20mA). This setting defines the
location of full current output and is the top
of the sensor’s measurement range.
Min. Fill Height: Distance from the bottom of
the tank to the operational empty level of
liquid (4mA). This setting defines the location
of empty current output and is the bottom of the sensor’s measurement range.
Probe Length: Distance of the probe from the bottom of the threads (feed through) to the end of the probe.
35
APPENDIX
Section Seven
Volume – Sensor Output Units (Vertical Cylinder Example):
Enter the dimensions of the tank. You must
enter data in all fields shown.
Sensor Height: Distance from the bottom of
the tank to the top of the threads.
Max. Fill Height: Distance from the bottom
of the tank to the operational full level of
liquid (20mA). This setting defines the
location of full current output and is the top
of the sensor’s measurement range.
Min. Fill Height: Distance from the bottom of
the tank to the operational empty level of
liquid (4mA). This setting defines the location
of empty current output and is the bottom of the sensor’s measurement range.
Tank Height: Distance from the bottom of the tank to the top of the straight side wall.
Diameter: Distance of the inside tank diameter.
Probe Length: Distance of the probe from the bottom of the feed through to the end of the probe.
Volume – Tank Capacity (Vertical Cylinder Example): After entering the dimensions, press the Capacity
button to show the Calculated Capacity of the tank. If the Calculated Capacity is slightly different than the
expected capacity, click on the Adjust Capacity box and enter the expected capacity of the tank. If the
Adjusted Capacity is more than 10% of the Calculated Capacity, recheck the dimensions information entered
above.
When all dimensions are entered, press the Apply button to return to the previous Configuration window.

Apply – Transfers the dimensions to the original Configuration window.

Tanks – Returns to the previous Shape Selection window.

Cancel – Returns to the Configuration window without saving any information.

Help – Jumps to the Help menu.
36
APPENDIX
Section Seven
D. Tank Level Confirmation: This section of the LVCN414‐SW software is where you confirm the values set in
the previous step. The values were entered under the Dimensional entry window. To edit these settings, you
must go back to the Dimensional entry window via the Volumetric Mode button.










Height Units: Units selected for configuration. When used as a device to measure the height of liquid,
the options are inches, cm, feet or m. When used as a device to measure the volume of liquid, the
options are gallons or liters.
Sensor Height: Distance from the bottom of the tank to the bottom of the top of the threads.
Max. Fill‐Height: Distance from the bottom of the tank to the operational full level of liquid (20mA).
This setting defines the location of full current output and is the top of the sensor’s measurement
range.
Min. Fill‐Height: Distance from the bottom of the tank to the operational empty level of liquid (4mA).
This value defines the location of empty current output and is the bottom of the sensor’s
measurement range.
Probe Length: Total length of the probe from the bottom of the probe to the bottom of the threads
(feed through).
o Cable version only: The height of the counter‐weight is included in this measurement.
Capacity: The total volume of the tank. Only shown when gallons or liters are selected.
Maximum Current: Displayed value of the largest operational current of the sensor’s measurement
range. Typically 20mA when Output @ Empty is set to 4mA.
Maximum Volume: Displayed value of the largest operational volume of the sensor’s measurement
range. This is the calculated volume of liquid at the Max. Fill‐Height. This feature is only shown when
the sensor is selected to measure the volume of liquid in the tank.
Minimum Current: Displayed value of the smallest operational current of the sensor’s measurement
range. This value is dependent on the location of the Min. Fill‐Height.
Minimum Volume: Displayed value of the smallest operational volume of the sensor’s measurement
range. This is the calculated volume of liquid at the Min. Fill‐Height. This feature is only shown when
the sensor is selected to measure the volume of liquid in the tank.
Note: By extending the empty (4mA) to the bottom of the tank, the 4‐20 mA output will track the volume of the tank.
This allows any local display to read the actual volume of liquid without the need for any unique configuration. This
feature is very useful with any non‐linear tanks such as horizontal, spherical or tanks with cone bottoms.
Height Units
Sensor Height
Probe Length
Max. Volume
Max. Fill‐H
Max. Current
Min. Fill‐H
Min. Current
Capacity
Min. Volume
37
APPENDIX
Section Seven
E. Write to Unit ‐ After you have entered
configurations, selected and configured the Tank
Shape and entered the Tank Values, click “Write to
Unit” and load the configuration into the memory of
the sensor. When completed, this configuration will
remain inside the sensor memory and will not change
unless the sensor is connected to the LVCN414‐SW
software and a new configuration is written to the
sensor. Loss of power will not change or lose the
configuration within sensor memory.
Write to Unit
Wiring diagram
Save Config File
Next, use the file management features to save your configuration by clicking “Save Config File” and print your
wiring diagram by clicking “Wiring Diagram.”
“Save Config File” will save this configuration as a text file which can be loaded back into the LVCN414‐SW
software by pressing the “Open Config File” button. It is good practice to save the configuration file for each
different configuration with a unique name for easy identification. If using multiple sensors in identical
applications, then use of a single configuration file is recommended.
“Wiring Diagram” will display a PDF file showing the unique wiring for the specific configuration created in the
LVCN414‐SW software. The PDF can be printed or emailed. It is good practice to save the wiring diagram as a
backup.
38
APPENDIX
Section Seven
Cutting the Probe
If the length of the probe is too long (touches bottom of tank, prevents the sensor from being threaded into
the tank or a shorter length is required for the application), the probe can be cut to length in the field. Note:
The most important requirement for cutting the probe is to protect the housing from being dropped, banging
into other objects or swinging freely. Follow the instructions for the appropriate probe style.
Rod (LVRD11 Series)
 Place the probe on a sturdy surface.
 Measure and mark the location for the cut.



Secure the rod to prevent it from moving during cutting.
o Be sure to secure the housing to prevent it from moving when the probe is cut.
Use a saw with a blade designed to cut 316L SS to cut the probe.
o Examples include hack saw, diamond wheel rotary tool, etc.
o Once the probe is cut, trim/file the fresh cut.
Install the probe per mounting instructions.
Coaxial (LVRD12 Series)
 Place the probe on a sturdy surface.
 Measure and mark the location for the cut on the coaxial shield.

Unthread the coaxial shield from the GWR sensor.
39
APPENDIX
Section Seven

Measure and mark the location for the cut on the exposed rod.
o Use the coaxial shield as a guide to confirm both cuts are at the same length.

Cutting the rod
o Secure the rod to prevent it from moving during cutting.
 Be sure to secure the housing to prevent it from moving when the probe is cut.
o Use a saw with a blade designed to cut 316L SS to cut the probe.
 Examples include hack saw, diamond wheel rotary tool, etc.
 Once the probe is cut, trim/file the fresh cut.
o Attach a spacer to the end of probe.
 Offset the spacer approx. 1/8” (3mm) from the end of the probe.
 Make sure the remaining spacers are no further than 39.4” (1m) apart.
 Secure retaining rings on each side of the spacer.



Cutting the coaxial shield
o Secure the coaxial shield to prevent it from moving during cutting.
o Use a pipe cutter with a blade designed to cut 316L SS to cut the coaxial shield.
 A hack saw can be used to cut the coaxial shield if the pipe cutter is too difficult.
 Use the initial cut of the pipe cutter as a score line for the hack saw.
 Once the coaxial shield is cut, trim/file the fresh cut.
Slide the coaxial shield over the rod making sure not to move the spacers.
Thread the coaxial shield to the GWR sensor.

Install the probe per mounting instructions.
40
APPENDIX
Section Seven
Cable (LVRD13 Series)
 Place the probe on a sturdy surface.
 Measure the location for the cut on the cable.
 Wrap the cable with electrical tape along the area of the cut.
o This will prevent the cable from fraying while being cut.


Mark the location of the cut on the electrical tape.
Loosen the (¼–20, ⅛ Hex) set screws in the counterweight and remove from the cable.


Secure the cable to prevent it from moving during cutting.
o Be sure to secure the housing to prevent it from moving when the probe is cut.
Using a wire cutter or a rotary tool, cut the cable.
o Once the probe is cut, remove the tape keeping the cable intact.
Insert the freshly cut cable into the counterweight and tighten the (¼–20, ⅛ Hex) set screws.

Install the probe per mounting instructions.

41
APPENDIX
Section Seven
Factory Settings:
Probe Style
Rod
(LVRD11 Series)
Coaxial
(LVRD12 Series)
Cable*
(LVRD13 Series)
Sensor
LVRD11
Series
LVRD11‐3FT
Series
LVRD11‐6FT
Series
LVRD12
Series
LVRD12‐3FT
Series
LVRD12‐6FT
Series
LVRD13 Series
From Bottom
(Lowest point of probe)
4mA
20mA
2.0”
114.8”
(50.8mm)
(2915mm)
2.0”
32”
(50.8mm)
(812.8mm)
2.0”
68”
(50.8mm)
(1727.2mm)
2.0”
114.8”
(50.8mm)
(2915mm)
2.0”
32”
(50.8mm)
(812.8mm)
2.0”
68”
(50.8mm)
(1727.2mm)
7.9”
219.1”
(200.7mm)
(5566mm)
From Top
(Bottom of Mounting Nut)
4mA
20mA
116.8”
3.4”
(2966mm)
(85.1mm)
34”
3.4”
(862.6mm)
(85.1mm)
70”
3.4”
(1778.0mm)
(85.1mm)
116.8”
3.4”
(2966mm)
(85.1mm)
34”
3.4”
(862.6mm)
(85.1mm)
70”
3.4”
(1778.0mm)
(85.1mm)
216.2”
3.4”
(5145mm)
(85.1mm)
Cable ‐ includes counter‐weight
Note: Cable versions of the LVRD13 series must account for the counterweight attached to the end of the
probe.
Note: When clicking on the Factory Config. Button in the configuration software, this will return the sensor to
its based factory configuration which is for the full length sensor (i.e. LVRD11, LVRD12 or LVRD13) and not any
of the shorter length configurations (i.e. LVRD‐11‐3FT, LVRD‐12‐6FT, etc.).
Troubleshooting:
PROBLEM
No LED
LED flashes Red
Sensor is locked on a level
above the true level.
SOLUTION
Sensor is not receiving power (10 to 30 VDC). Check wiring to the
sensor as well as the power supply.
Sensor cannot acquire a valid level reading. Make sure the sensor is
installed properly within the application and the probe is touching
liquid.
Sensor is likely acquiring a false echo from some interference close to
the probe. Running an Empty Signal Scan should address this issue.
42
43
44
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising