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USR03
Installation Manual
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Omega Engineering USR03, UMR14, ULR30, UXLR50 Installation Manual

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U-Series Ultrasonic Sensors
Ultrasonic Distance Sensors
omega.com info@omega.com
Servicing North America:
Omega Engineering, Inc.
Tel: (203) 359-1660
Fax: (203) 359-7700
For Other Locations Visit omega.com/worldwide
U.S.A.
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and
Headquarters:
800 Connecticut Ave, Suite 5N01, Norwalk, CT 06854 Toll-Free: 1-800-826-6342 (USA & Canada only) Customer Service: 1-800-622-2378 (USA & Canada only) Engineering Service: 1-800-872-9436 (USA & Canada only)
e-mail: info@omega.com
reserves the right to alter specifications without notice.
2

Product Declarations

Related Products

OmegaVIEW for Windows

A setup tool for U-Series ultrasonic sensors series sensors, this software installs on a PC and is used to configure sensor options, select and calibrate outputs, view and analyze measurements, and save the result to a PC hard drive. Recalled configurations can restore or duplicate an application without recalibration. View, chart, log, and analyze sensor operation. Sensor firmware upgrades can be done easily through OmegaVIEW too. Download OmegaVIEW at no charge from: omega.com/en-us/ftp

Setup Kits

Used for bench viewing or configuring sensors, kits include power supply, terminal board, and cables to interconnect with your PC.

CE Compliance

U-Series ultrasonic sensors family of ultrasonic sensors are compliant with the CE Electromagnetic Compatibility Directives and Standards listed below:
Directives: Electromagnetic Compatibility (2004/108/EC) Low-Voltage (2006/95/EC) Standards: EMC: EN 61326-1:2006 Industrial Safety: EN 61010-1:2001
and search by model.
3

Table of Contents

PRODUCT DECLARATIONS ........................ 2
Document RevisionsError! Bookmark not defined. Related Products _________________________ 3
CE Compliance __________________________ 3
Table of Contents _________________________ 4
Terminology _____________________________ 5
ULTRASONICS OVERVIEW ........................................ 6
Introduction ______________________________ 6
Advantages _____________________________ 6
Typical Applications _______________________ 6
SENSOR OVERVIEW ................................................... 7
U-Series Ultrasonic sensor Product Features ___ 7
Startup Tips _____________________________ 8
Specifications ____________________________ 9
Mechanical Details _______________________ 13
Mounting and Installation __________________ 13
Rear Features __________________________ 14
Target Indicator _________________________ 15
Output Status Indicators ___________________ 16
INTERFACES ............................................................. 18
Wires Identification _______________________ 18
U-Series 3 &14 Output Selection ____________ 19
Analog Outputs __________________________ 20
Serial Data Interface ______________________ 26
Serial Parameters ________________________ 27
Serial Data Protocols _____________________ 29
OPERATION ............................................................... 31
Power Up ______________________________ 31
Measurement Activation ___________________ 31
Synchronization _________________________ 33
Operating Range ________________________ 34
Measurement Process ____________________ 34
Sensor Viewing _________________________ 35
Measurement Rate _______________________
Output Response Time ___________________ 37
Filters _________________________________ 38
Time Delays ____________________________ 41
Temperature Compensation ________________ 41
OMEGAVIEW SOFTWARE ........................................ 44
Install OmegaVIEW ______________________ 44
Application Setups _______________________ 44
Connect a Sensor ________________________ 45
Outputs & Indicators ______________________ 46
Sensor Adjustment _______________________ 49
37
TEACH ADJUST ......................................................... 50
APPENDIX A – LIST OF ADJUSTABLE FEATURES 53
Warranty ………………………………………………….57
LIST OF FIGURES
Figure 1 - Part Number Structure .................................. 7
Figure 2 - Mechanical Drawing, U-Series ultrasonic
sensors 3, 14 metric thread ......................................... 13
Figure 3 - Mechanical Drawing, U-Series ultrasonic
sensors 30, 50, and 50P ............................................... 13
Figure 4 - Sensor Orientation ...................................... 13
Figure 5 - Mounting ..................................................... 14
Figure 6 - Sensor Rear Features ................................... 14
Figure 7 - Target Indicator Functions .......................... 15
Figure 8 - Output Status Indicator Operations ............ 17
Figure 9 - RS-232 PC COM Port Connections ............... 19
Figure 10 - Voltage Output Wiring .............................. 20
Figure 11 - Sourcing Current Loop Wiring ................... 20
Figure 12 - Sinking Current Loop Wiring ...................... 21
Figure 13 - OmegaVIEW Analog Adjustments ............. 23
Figure 14 - Sinking Switch Output Wiring .................... 23
Figure 15 - Sourcing Switch Output Wiring ................. 24
Figure 16 - Switch Hysteresis & Window Modes ......... 25
Figure 17 - OmegaVIEW Switch Adjustment ............... 25
Figure 18 - RS-232 PC COM Port Connections ............. 26
Figure 19 - RS-232 Connections ................................... 27
Figure 20 - Serial-485 Connections .............................. 27
Figure 21 - RS-485 Network Wiring ............................. 27
Figure 22 - Measurement Activation Selections .......... 32
Figure 23 - OmegaVIEW Polling Controls .................... 32
Figure 24 - SYNC Wiring .............................................. 33
Figure 25 - SYNC Phases and Timing ........................... 33
Figure 26 - Measurement Process Diagram ................ 34
Figure 27 - OmegaVIEW Distance Displays ................. 35
Figure 28 - Filters Block Diagram ................................ 38
LIST OF TABLES
Table 1 - Wire Assignments ____________________ 18 Table 2 - Measurement Activation Summary ______ 31 Table 3 - Maximum Range vs. Measure Rate ______ 37 Table 4 - Filter Response Time __________________ 40 Table 5 - Pushbutton TEACH Features List _________ 52
4

Terminology

Terms listed here are shown in italics throughout this document. An asterisk (*) indicates a OmegaVIEW configurable parameter.
Analog An electrical output type that varies in proportion to
measured distance. Analog output types can be either current loop or voltage.
Analog High Value* The maximum (highest) value of an analog
output. For example, the Analog High Value for a 4-20 mA current loop analog output is 20 mA. Computer configurable models allow this value to be user-entered.
Analog Low Value* The minimum (lowest) value of an analog
output. For example, the Analog Low Limit value for a 0-10 VDC voltage output is 0 volts. Computer configurable models allow this value to be user-entered.
Analog Window* A range of distances between two endpoints,
within which the analog output will vary between the analog low value and analog high value proportional to measured distance.
Current Loop Output* An analog output type that drives an
electrical current proportional to measured distance. U­Series ultrasonic sensors provide 4-20 mA or OmegaVIEW customized output ranges in sourcing or sinking current.
Dead band The small distance near the sensor face within
which distance cannot be measured. See also Range MIN.
Endpoint* One of two end distances representing the outer
limits of the analog window.
Hysteresis* The distance between a switch’s Setpoint and OFF
Distance. It reverses direction about the Setpoint if the Polarity is reversed.
Ingress Rating An enclosure rating that identifies how
susceptible a product is to the entry (ingress) of external objects or liquids.
Measurement Rate* The repetitive rate that the sensor
measures distance (see response time).
Measurement Interval* The time between measurements [1 /
Measurement Rate].
Measurement Process* The measurement, filtering and time
delays that affect sensor outputs (p 34).
Maximum Range The maximum target detection distance of a
sensor model; may be overridden by Range MAX (p 34).
Near MIN A distance extending 0.25 in. farther than Range MIN
within which the Target Indicator will flash as a warning.
Operating Range* The range of distances between the range
MIN and range MAX values (p 34).
Optimum Range The range of target distances recommended
for optimum performance in varying environmental conditions.
Output Status Indicator An indicator at the rear of U-Series
ultrasonic sensors 3,, and 14 that shows the status of an analog, switch or serial data output. There is a separate output status indicator for output #1 (black wire) and output #2 (white wire).
Polarity* The behavior of a switch output at its setpoint, defined
as “on-closer” or “on farther”. A switch turns OFF in the reverse direction after the Hysteresis distance.
Range MAX* The farthest distance of the Operating Range;
user adjustable in OmegaVIEW.
Range MIN* The nearest distance of the Operating Range; a
target is not detected closer than the greater of Range MIN or the Dead band.
RS-232* An electrical interface standard used to transfer
information using serial data communications. This is a single ended interface with a specified maximum range of 50 feet (15 meters) that typically supports one device.
RS-485* An electrical interface standard used to transfer
information using serial data communications. This is a long-distance differential interface capable of supporting multiple addressable devices.
Response Time* The time required for sensor outputs to
respond to measurements; affected by measurement rate and filter selections.
Serial Data Distance data output over the serial interface as
opposed to the analog or switch lines
Setpoint* The distance a switch output turns ON. (see also OFF
distance, polarity and Hysteresis)
Sinking Switch* A switch where current flows into the sensor to
ground from an externally sourced load when turned ON (output voltage low when ON).
OmegaVIEW Omega PC–based software used to configure and
install U-Series ultrasonic sensors.
Sourcing Switch* A switch where current flows from the sensor
(sensor power input is the source) to the load when turned ON (output voltage high when ON).
Switch* An electrical output type that is either ON or OFF. U-
Series ultrasonic sensors® switches are solid state and can be either sinking or sourcing type.
SYNC* A wired configuration that synchronizes the timing of
two or more sensors to prevent crosstalk or ensure simultaneous measurements.
SYNC Interval The time interval of measurement of all SYNC
sensors. It equals the number of SYNC phases x
measurement interval.
Target Any object or material that reflects ultrasonic energy
back to the sensor thus allowing the sensor to measure its distance.
Target Indicator A rear indicator that shows the status of a
detected target and more.
Teach* A Omega product feature that uses a pushbutton to
to store a current target distance measurement into memory and automatically calibrate the output(s).
Time Delay* A time period triggered by a set of conditions and,
after those conditions persist for the entire period, cause a secondary event to occur. There are several user-selected time delay features available.
Ultrasonic A sound wave of a frequency greater than 20,000
Hz, typically above the range of human hearing.
Voltage Output* An analog output type that drives an
electrical voltage proportional to measured distance. U­Series ultrasonic sensors provide industry standard or OmegaVIEW customized output ranges.
5
( 2 ) U l t r
a
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r e t u r n s f r o m t a r g e t
( 1 ) U l t r a s o n i c p u l s e t r a n s m i t t e d f r o m s e n s o r

Ultrasonics Overview

Introduction

Omega sensors measure the distance or presence of a target object by sending a sound wave, above the range of hearing, at the object and then measuring the time for the sound echo to return. Knowing the speed of sound, the sensor can determine the distance of the object from the transducer element.

Advantages

• Non-contact
Measures through the air without touching the target object, at relatively large distances.
• Object Ranging
Object distance is measured rather than just the presence or proximity.
• Distance Proportional Output
The sensor’s outputs are proportional or affected by the measured target distance.

Typical Applications

Roll Diameter
Measure the size of a roll to control tension or speed or determine when full or empty.
Loop Control
Precisely control the position of material loops, including wires, tubes and webs.
Web Break
Rapidly detect a broken web in a printing press or paper machine.
Dimensioning
Determine the size of an object for information or to determine its volume or width.
• High Resolution
Precise discrimination of target position.
• Unaffected by Target’s Optical Characteristics
The sensor’s operation is not sensitive to ambient light levels, the color of the target, or target is optically transparency/reflectivity.
• Sensitive
Detects large and small objects (smaller objects must be closer)
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Proximity
Determine the presence of objects to count or control their movement.
Sort/Select
Sort or select objects based on differences in their physical dimensions.
Level Measurement
Measure or control the level of liquid or solid materials in tanks or bins for inventory or batching….
and many more...

Sensor Overview

U-Series Ultrasonic sensor Product Features

U-Series ultrasonic sensors measure distance without contact and are designed for tough industrial environments.

Rapid PC Setup & Control

PC setup gives you control over all sensor outputs and features. View, analyze and save sensor setups for rapid implementation or cloning.

Pushbutton “Teachable”

Some models utilize a rear TEACH button to make many common adjustments. See the Teach Adjust section. Rear indicators provide target and output status. The TEACH
button can be disabled for security using OmegaVIEW. The TEACH button is unavailable on the U-Series UXLR 50 models and serial-only models.

Industry Standard Interfaces

Multiple simultaneous outputs, each with many OmegaVIEW adjustable features.

Part Numbers

Packaging

U-Series ultrasonic sensors models are housed in rugged 316 stainless steel or durable PVC, with permanently attached interface cables. Sensors are potted and sealed to operate in wide humidity and temperature ranges.
Figure 1 - Part Number Structure

Identification

The U-Series ultrasonic model number and serial number are printed on the label on the side of the housing.
7

Startup Tips

New or first-time users can use this condensed guide for assembly, connection to a PC, and basic sensor changes from default values before installation The sensor communicates with a Windows PC through the serial port or USB port. A UAN-Kit from Omega is recommended for connecting to your PC. It includes a termination board, power supply and cables.
Install the Software
Download OmegaVIEW and install to your PC. Open OmegaVIEW Version 3.6.xxx Setup.exe to install. Start OmegaVIEW.
.
>User Preferences…> Connection/ Starting COM port: and enter new start number. Return to
Connect Sensor
and repeat connection with any available green ports. For more detail, see “
OmegaVIEW Quick Tour
Connect a Sensor”, page 45.
Once a sensor is connected, it can be viewed in the SENSOR view. Any changes are done in the WORKSPACE view and transferred to the sensor. Basic layout of the main screen:
a. Range and basic setup values, all editable. b. Workspace and Sensor views c. File saving and retrieval button d. Dialog screens for additional setup e. Analysis tools f. Output setup and simulated meters (editable)
Connect the Components
The sensor uses colored wires for power, communication, and outputs. For a basic terminal board connection, we’ll use 4 of the sensor’s wires:
a. Brown for DC power (DC+) b. Blue for ground (GND and digital reference)
c. Gray and Yellow for digital communication. Connect them to the labeled Omega terminal board. Protect all bare wires from contacting one another whether connected or not. Ensure the terminal grips the stripped wire, not its colored jacket. Plug the data communication cable into the terminal board RJ jack and your serial port (-232 models), or into the USB adapter (optional for -232 and required for -485 models). (For USB adapters see page 14) Put the DC power supply cable into the jack on the terminal board, and the supply into an AC source. All sensors will faintly tick when powered.
Connect to Your Sensor (using serial port)
Start OmegaVIEW. Menu bar: Sensor >Connect for a dialog box. All new sensors have network address 1. Use Baud rate 9600. The serial port is generally identified COM 1. Click Connect.
OR Connect to Your Sensor (using a USB port)
Start OmegaVIEW. Menu bar: Sensor >Connect for a dialog box. All new sensors have network address 1. Use Baud rate 9600. Select the COM port from the choices or run Com Port Survey. If COM port is higher than the 12 shown. Edit
Setup Basics (advanced description starts page 21)
When sensor is found, answer YES to copy sensor setup to the Workspace. You are left in Sensor View showing the sensor reading and its current setup. To make changes, click the WORKSPACE button.
-To change a Range, Endpoint, or output value, just click on the value and enter a new one.
-To reverse the analog slope, right-click the High- or Low-value endpoint.
-To assign outputs, click WIRING and assign black and white wires as needed. Any changes in Workspace make it different than the Sensor, shown by the unequal symbol. Transfer WORKSPACE to SENSOR.
Save the Setup to the Sensor
To move changes to sensor, right click and drag
WORKSPACE to SENSOR. Any changes not sent to the sensor will be lost when closing OmegaVIEW
Save the Setup to the PC.
.
Right click WORKSPACE and drag it to FILE.
Mounting Tips
Sensor must be mounted perpendicular to the object to be measured for sound echoes to return. The sensor cannot sense in a space less than the default Minimum Range value. The sensor will ignore targets or surfaces beyond the Max Range value. Avoid echoes from pipe fittings, welds, and fixed objects with careful placement. The sensor will return a distance value from the first surface found within range. Contact Omega technical support for setup assistance.
8
Model Name
USR03
xxx
UMR14
Maximum Range
3 ft (91cm)
14 ft. (4.3 m)
Optimum Range (small Two outputs: OmegaVIEW selectable as 0-10 VDC (or custom), 4-20 mA (or custom)
Switches: 150 mA, OmegaVIEW configured as PNP (@ input voltage) or NPN
Voltage: 0-10 or OmegaVIEW configured, 10 mA max (min 15 VDC input for full 10
Current Loop: 4-20 mA or OmegaVIEW configured, 450Ω max @ >15VDC, 250Ω
Round LED: Power/Target. Square & Rectangular LEDs: Data, switch or analog Serial-only models: Round LED Power/Target
Serial interface,
Modbus slave, ASCII, or SYNCH. RS-232 or RS-485 interface, depends on model. RS-
Power Input
10-30 VDC @ 55 mA max
DC Current @ typical 24VDC input DC Current, Serial-only
Typical 30 mA @ 24VDC
Typical 35 mA @ 24VDC
Ingress: IP-68, NEMA-4X Humidity: 0-100% (avoid heavy condensation) Temp: -40 to
Transducer frequency
240 kHz
120 kHz

Specifications

A summary of sensor specifications and features is shown in the following table.
Part number, Metric
Part number, NPT
Photo
Deadband (minimum)
targets, dry materials, hot)
Outputs, full-featured models:
Outputs, Serial-only: NONE
USR03-30MM-
USR03-1NPT-xxx
UMR14-30MM-xxx
UMR14-1NPT-xxx
1.75 in (4.4 cm)
1.75 in (4.4 cm) to 24 in (61cm)
sourcing, PNP or NPN switches
(external 40 VDC max.), setpoint mode or window mode
VDC output)
max @ 10 VDC
4 in. (10.2 cm) to 10 ft (3m)
4 in. (10.2 cm)
Indicators
Interface protocol
+I/O
Environmental
status (configurable)
485 models are 2-wire multi-drop addressable (addresses 1-247). Baud rates 9600 ­115200, none or even parity, 8 bits, one stop bit. OmegaVIEW configured.
Typical 45 mA @ 24VDC input +I/O
+158 F (-40 to +70 C)
9
Model Name
Part number, Metric
USR03
xxx
UMR14
xxx
Rugged piezoelectric, Rugged piezoelectric, nominal beam width ~12
Default: 50 msec (20 Hz)
Adjustable from 5 msec to 2.8 hours; faster rates limit max target distance
Repeatability: Greater of +/-0.03 in. (0.76 mm) or 0.25% of target distance in stable
4100 steps over 0-10 VDC and 3279 steps over 0-20 mA (scaled between user-set Resolution (serial data)
0.0034 in. (0.086 mm)
-40 to +158F (-40 to +70C) Temperature Compensated by internal sensor or external Adjustments
Pushbutton Teach (except in serial-only version) or OmegaVIEW software (included)
Cable, full outputs
6.5-ft (2m) 6-wire with shield, tinned ends, PUR. Longer cables available. M12
6.5-ft (2m) 4-wire with shield, tinned ends, PUR. Longer cables available. M12 Max serial cable length
RS-232: 50ft (15 m), RS-485: 3937ft (1200m).
Weight
10.3 oz. (0.29 kg)
Housing material,
Dimensions
Default: RangeMIN
1.75 in. (4.4 cm)
4 in. (10.2 cm)
Options Interface:
RS-232 or RS-485
m30x1.5 or 1-in NPT thread
Two outputs
Part number, NPT
Transducer, Beamwidth
Measurement rate
Performance
Resolution (analog)
Temperature
USR03-30MM-
USR03-1NPT-xxx
nominal beam width ~12 degrees @ -3 dB, approx.
conical shaped pattern
environment Accuracy: Better than 0.5% of target distance in stable, homogeneous air environment; affected by temperature gradients, target echo strength, speed of sound in air or vapors.
distance endpoints)
Reference Target
degrees @ -3 dB, approx. conical shaped pattern
UMR14-30MM-
UMR14-1NPT-xxx
(embedded)
Cable, serial-only
Mount
(Dia x Length)
RangeMAX Switch #1 Setpoint Switch #2 Setpoint Analog Low Endpoint Analog High Endpoint
Mount method:
connector on 18” cable available with extension cables available
connector on 18” cable available with extension cables available
316 Stainless, M30x1.5 mm thread OR 316 Stainless, 1-in NPT thread
1.2 in. (30.4mm) x 4.064 in. (103mm)
36 in. (91 cm)
12 in. (30.5 cm)
18 in. (46 cm)
1.75 in. (4.4 cm) 24 in. (61 cm)
168 in. (427 cm)
12 in. (30.5 cm)
24 in. (61 cm)
4 in. (10.2 cm)
120 in. (305 cm)
Outputs:
10
&
UXLR50-15NPT-RM-xxx
Maximum Range / Dead
30 ft. (9.1m) /
Optimum Range (small
only:
Five Outputs: 0-10 VDC, 4-20 mA sourcing, 4-20 mA sinking, two switches
Switches: 150 mA, OmegaVIEW configured as PNP (@ input voltage) or NPN
Voltage: 0-10 or OmegaVIEW configured, 10 mA max (min 15 VDC input for full 10
Current Loop: 4-20 mA or OmegaVIEW configured, 450Ω max @ >15VDC, 250Ω
Round LED: Power/Target. Square & Rectangular LEDs: Data, switch or analog Serial-only models: Round LED Power/Target (except UXLR50RM)
Serial interface,
Modbus slave, ASCII, or SYNCH. RS-232 or RS-485 interface, depends on model.
Power Input
10-30 VDC @ 70 mA max
DC Current @ DC Current, Serial-only
55 mA max, Typical 35 mA @ 24VDC
Ingress: IP-68, NEMA-4X Humidity: 0-100% (avoid heavy condensation)
Transducer,
Rugged piezoelectric, nominal beam width ~12 degrees @ -3 dB, approx. conical Transducer frequency
75 kHz
50 kHz
50 kHz
Default: 100 msec Adjustable from 5 msec to 2.8 hours; affected by filter selections
Photo
Model Name
Part Number
ULR30
ULR30-15NPT-xxx
UXLR50 (clamped)
UXLR50-CM-xxxx
(Rear mounted)
UXLR50 (PVC)
UXLR50-25NPT-FR-xxx
band
targets, dry materials, hot)
Outputs, full-featured models:
Outputs, Serial­NONE
Indicators
Interface protocol
10 in. (25.4cm)
50 Ft. (15.2m) / 12 in. (30.5cm)
20 ft (6.1 m) 33 ft (10.1 m)
(external 40 VDC max.)
VDC output)
max @ 10 VDC
status (configurable) UXLR50RM : None
RS-485 models are 2-wire multi-drop addressable (addresses 1-247). Baud rates 9600 - 115200, none or even parity, 8 bits, one stop bit. OmegaVIEW configured.
typical 24VDC input +I/O
Environmental
Beamwidth
Measurement rate
Typical 45 mA @ 24VDC input +I/O
Temp: -40 to +158 F (-40 to +70 C)
shaped pattern
(10 Hz)
Default: 200 msec (5 Hz)
11
Model Name
ULR30
UXLR50 (clamped)
xxxx &
(Rear mounted)
UXLR50 (PVC)
Performance
Repeatability: 0.2% of target distance in stable environment
4100 steps over 0-10 VDC and 3279 steps over 0-20 mA (scaled between user-set Resolution (serial data)
0.0068 in. (0.172 mm)
0.0135 in. (0.343mm)
-40 to +158F (-40 to +70C) Temperature Compensated by internal sensor or
Pushbutton Teach
Cable, full outputs
6.5-ft (2m) 9-wire with shield, tinned ends, PUR. Longer cables available. M12
Cable, serial-only
6.5-ft (2m) 4-wire with shield, tinned ends, PUR. Longer cables available. M12 Max serial cable length
RS-232: 50ft (15 m), RS-485: 3937ft (1200m).
Weight
22.6 oz. (0.64 kg)
29.9 oz (0.82 kg)
29.1 oz (0.82 kg)
Housing material,
316 Stainless cylinder,
Dimensions
50: 2.3 in (59mm) x 4.8 in
50RM: 2.5 in (63 mm) x 5.9
Default: RangeMIN
10 in. (25.4 cm)
12 in. (30.5 cm)
12 in. (30.5 cm)
RS-232 or RS-485
Clamp. ( UXLR50RM: Five outputs
Part Number
Resolution (analog)
Temperature
Adjustments
(embedded)
ULR30-15NPT-xxx
UXLR50-CM-
UXLR50-15NPT-RM-xxx
UXLR50-25NPT-FR-xxx
Accuracy: Better than 0.5% of target distance in stable, homogeneous air environment; affected by temperature gradients, target echo strength, speed of sound in air or vapors.
distance endpoints)
external Reference Target
(except on serial-only models) or OmegaVIEW software (included)
OmegaVIEW software (included)
connector on 18” cable available with extension cables available
embedded
Mount
(Dia x Length)
connector on 18” cable available with extension cables available
316 Stainless, Dual 1.5 in NPT
1.2 in. (30.4mm) x 4.064 in. (103mm)
Clamp to mount UXLR50RM: rear 1.5 in NPT
(122 mm)
in (150mm)
RangeMAX Switch #1 Setpoint Switch #2 Setpoint Analog Low Endpoint Analog High Endpoint
30 ft. (9.1 m) 36 in. (91.4 cm) 48 in. (121.9 cm) 10 in. (25.4 cm) 240 in. (609 cm)
50 ft. (15.2 m) 36 in. (91.4 cm) 48 in. (121.9 cm) 12 in. (30.5 cm) 400 in. (1016 cm)
Options Interface:
Mount method:
Outputs:
1.5 in NPT both ends rear thread 1.5-in NPT)
12
PVC, Dual 2.5 in NPT
2.5 in (63.5 mm) x 5.0 in (127 mm)
50 ft. (15.2 m) 400 in. (1016 cm) 18 in. (45.7 cm) 400 in. (1016 cm) 12 in. (30.5 m)
2.5 in NPT either end
DIRECTION
OF MEASUREMENT
ULR30:
1.5 in. NPT thread (both ends)
Diameter
ULR30:
4.3 (109)
5.0 (127)

Mechanical Details

Dimensions are inches (mm). Distance is measured between the ultrasonic transducer face (the end opposite the cable) and the target.
Figure 2 - Mechanical Drawing, U-Series ultrasonic
sensors with metric thread

Mounting and Installation

Precautions

Only hand tighten the sensor and never apply a wrench to the body. When tank mounting to a domed or round tank, mount the sensor perpendicular with the target surface. Mount the sensor directly to the tank ceiling at a flanged opening. If a riser is added, it must be smooth­walled and a minimum 3-in diameter. The sensor beam width is nominally 12-14 degrees at the -3dB boundary, however surfaces outside that can return echoes as well. Round off the lower ID of the riser to prevent detection. Provide shade for outside installations to prevent erroneous measurements due to artificial heating of the sensor when temperature compensation is active. Mount the sensor away from the inner walls of tanks. Seams and fixtures can interfere with measurements.

Orientation

Orient the sensor perpendicular to the target object for best results as shown in Figure 4.
Mechanical Drawing, U-Series ultrasonic sensors with
NPT thread
UXLR50:
UXLR50 (PVC):
Not threaded
2- ½ in. NPT thread (both ends)
ULR30:
UXLR50:
UXLR50 (PVC):
UXLR50:
4.8 (121)
Figure 3 - Mechanical Drawing, U-Series ultrasonic
sensors 30 and 50
1.88 (48)
2.31 (59)
2.75 (70)
Figure 4 - Sensor Orientation
Ultrasound energy must return to the sensor or the sensor will not detect a target. Curved or spherical objects generally reflect a portion of the energy back to the sensor but with lower reflected energy. A flat surface, however, is detectable at a greater distance. Foreground interfering objects can be ignored by setting the Range MIN value in OmegaVIEW.

Maintenance & Cleaning

Dust accumulation on the sensor face can be cleaned by blowing pressurized air across the sensor face. Dust does not affect performance unless it builds on the transducer. Positioning the sensor
13
degree mounting,
NUT30-SS316
Cable
TEACH
button
Square Indicator
(green)
Rectangular
Indicator
(green)
Target Indicator (red or green)
Configuration and Communication
Configure, test and clone sensors.
facing downward rather than upward will minimize material accumulation in some applications. The sensor face can be cleaned with isopropyl alcohol or window cleaner. DO NOT use solvents such as MEK or acetone on U-Series ultrasonic sensors.

Metric U-Series ultrasonic sensors 3 and 14

These sensors are shipped with two 30mm stainless nuts. The sensor mounts through a 1.18-in (31mm) hole in a mounting plate as shown in Figure 5. This hole may be a component of the user equipment or a Omega bracket and must be rigid for best performance. Position the sensor in the hole and fasten it to the plate with the two nuts provided. The sensor position can be altered a couple of inches depending on the nut positions. If accurate close­range distance is important, position the sensor so the closest target is always beyond the dead band (also see
Range MIN on page 34).

NPT U-Series ultrasonic sensors 3 and 14

These sensors have 1-in NPT male threads at the front end to install in a 1-in NPT threaded hole, flange or 90-degree adapter. The sensor can also be held by clamp.

Mounting Hardware & Accessories

Metric U-Series ultrasonic sensors 3 and 14 series
Figure 5 - Mounting
MB30-SS90
Stainless steel, 90­non-adjustable angle
One pair (SS316). stainless steel m30x1.5 nuts
(Included with new sensor)

Software and Interconnection

The following accessories are available.
OmegaVIEW
Software
KIT-USB-232 KIT-USB-485
Compatible with all U-Series ultrasonic sensor models. Download free from www.Omega.com
PC Interface kits. Choose RS-232 or RS-485 to match sensor. Converter, terminal block, power supply, data cable included.

Rear Features

Figure 6 - Sensor Rear Features. There are four control
features available:
The
TEACH button can be used to make sensor
adjustments on USR03, 14, and 30 series sensors (or can be disabled using OmegaVIEW). Teach features are described on page 50.
The
target indicator (round) shows the target
status and other conditions. It is always ON when power is applied and will be either RED or GREEN.
The
square status indicator and rectangular
status indicator
show sensor outputs status as described in Target Indicator on page 16. Status Indicator assignments can be changed using OmegaVIEW. The factory defaults by model are:
• USR03 and 14: Square = Analog, Rectangular = data TX
• U-Series 30: Square = Switch #1, Rectangular = Switch #2
• U-Series 50: Square = Switch #1, Rectangular = Switch #2
• U-Series 50 with rear thread: No pushbutton or LEDs
• U-Series 50 in PVC: Square = data RX, Rectangular = data TX
No pushbutton
14
Figure 7 - Target Indicator Functions

Target Indicator

As shown in the figure above, the a bi-color LED and provides status for the following purposes:
• Power ON
• Target status & near MIN
• Data communications
• “No SYNC” warning
• Unlocked status
• TEACH feedback (U-Series 3,14, and 30)

Power ON Status

When sensor power is ON the target indicator will be RED or GREEN. It may also be flashing at a slow or fast rate under other conditions described below and shown in figure 7.

Target Status & Near MIN

This is the primary operational purpose of the target
indicator
. The target status displays as follows:
• GREEN is a normal indication, indicating a target is detected within the sensor’s
operating range
• RED indicates no target is detected within the sensor’s
• FAST FLASH GREEN warns that the target is within 0.25 in. (6.4 mm) of
operating range.
target indicator is
range MIN.

Unlocked Status (U-Series 3, 14, and 30)

The sensor must be unlocked for TEACH adjustment. When unlocked the indicate target status (Red or Green) but will blink slowly on and off to signify TEACH readiness. ALT­Teach status is indicated by an alternating “double blink”. All filters are turned OFF when unlocked.
target indicator will continue to

TEACH and ALT-Teach Feedback (U-Series 3, 14, and 30)

When using the TEACH features to make sensor adjustments the BLINK RED (unless the TEACH functions are disabled using OmegaVIEW and the sensor is not a SYNC master or slave) as operator feedback while the
Target Status Indicator will SLOW
TEACH button is pressed. The user must count these
flashes, then release the specific number of flashes to complete a particular TEACH feature. ALT-Teach feedback is indicated by a slow “double blink”.
TEACH button after a

“No SYNC” Warning

If the SYNC feature is used (see page 33) and a slave sensor does not detect a master SYNC input, the slave will stop measuring and the indicator will slowly alternate between RED and GREEN until SYNC is restored (or the TEACH button is used on certain models).
Target Status
15

Output Status Indicators

Some U-Series ultrasonic sensors have two output status indicators at the rear of the sensor. These indicators can each show status of the analog, switch or serial data interfaces, or can be turned OFF. Indicators have default assignments and can be reassigned using OmegaVIEW. Indicator operations are shown in figure 8
In a typical installation the analog output is operating within a user-calibrated range and the normal indication is a continuously ON indicator. An OFF or blinking indicator could indicate a potential problem because the sensor is detecting a target outside the calibrated (expected) distance range.

Default Indicator Assignments

• U-Series 3 and 14: Square = Analog, Rectangular = data TX
• U-Series 30 and 50: Square = Switch #1, Rectangular = Switch #2
• U-Series 50 with Rear Mount: No indicators
• U-Series 50 in PVC: Square = data RX, Rectangular = data TX

Square Green Indicator - ■

The square status indicator can be configured using OmegaVIEW to any of the status options (analog, switch, serial data receive, serial data transmit, Reference Target, or OFF). If selected for a switch it displays the status for Switch #1. The #1 output must be configured to be a switch in order to choose Switch as the indicator. Similarly, Reference Target temperature compensation must be chosen before assigning Reference Target to the square indicator.

Rectangular Green Indicator - ▐

The rectangular status indicator can be configured using OmegaVIEW to any of the status options (analog, switch, serial data receive, serial data transmit, Reference Target, or OFF). If selected for a switch it displays the status for Switch #2. The #2 output must be configured to be a switch in order to choose Switch as the indicator. Similarly, Reference Target temperature compensation must be chosen before assigning Reference Target to the square indicator.
Switch Status
When a status indicator is selected as a solid-state
switch, it operates as follows:
• Indicator ON if
• Indicator OFF if
• Indicator blinks on and off continuously
while the due to over current or temperature.
The
Output Selection for a Switch may be either
switch is ON
switch is OFF
switch is in a safe shutdown mode
sinking or sourcing but the status indication is the
same. A
switch is considered ON when it is
conducting current (see page 23).

Analog Status

When a status indicator is selected for analog status it shows the current status of the analog output(s). The analog status is the same for voltage and current loop outputs since they share common
endpoint distances. The analog status indicator:
• is ON if the target distance is between the two analog the analog output is spanned, or
• is OFF if the target distance is equal to or outside the low value endpoint distance. The sensor output will be 0 VDC, 4 mA or the OmegaVIEW adjusted low analog output value, or
• blinks ON-OFF if the target distance is equal to or outside the high value distance. The sensor output will be 5/10 VDC, 20 mA or the OmegaVIEW adjusted high analog output value.
endpoint distances over which
endpoint

Serial Data Status

In systems using serial data communications a status indicator(s) can be configured using OmegaVIEW to either (a) RX flash upon receiving any data (regardless of validity or baud rate), or (b) TX flash upon transmitting data (responding to a valid command). A TX indicator will also flash each time data is transmitted in the ASCII streaming mode.

Reference Target Status

Either status indicator can be configured to light when the reference target is available and go out if it is lost. Available only in Reference Target temperature compensation mode.
16
Figure 8 - Output Status Indicator Operations
Output Status Indicators (■ &▐): Analog,
switch, reference target, and/or data status is shown on the square indicator (■) and/or rectangular indicator ( using OmegaVIEW. Analog status appears for current loop or voltage outputs, and Switch Status for sinking or sourcing switch outputs. Reference target is to monitor for that type of temperature compensation.
▐ ). Default assignments may be changed
Analog Status: The above two analog examples
show an increasing analog slope (top) and decreasing slope means the output value increases proportional to the measured distance and vice versa. A fast flashing analog indicator means the analog output is at the high current output value (10 VDC, 5 VDC, 20 mA, or user value entered in OmegaVIEW). An OFF analog indicator means the analog output is at the low
analog slope (bottom). An increasing
endpoint voltage or
endpoint voltage or current output value (0 VDC, 4
mA, or user value entered in OmegaVIEW). The analog status is solid green when the measurement is within the normal (calibrated) range.
Switch Status: The indicator will light green when
the associated switch is ON. An ON-switch means is it conducting current, and an OFF
switch not. A
sinking switch output that is ON will have an output
value near ground (0 volts). A that is ON will have an output value near the power supply voltage. The three switch examples shown above demonstrate a closer than the
switch that is ON at distances
setpoint (ON closer), farther than the
sourcing switch output
setpoint (ON Farther) and a FAULT condition
(overload or over temperature). During a FAULT the switch is turned OFF. Normal switch operation restores automatically when the fault is removed
.
Analog and Switch Outputs if No Target: If no
target is detected (target indicator is red) the analog output will hold the last value and the switch outputs will turn off after 1 second. These responses can be changed in OmegaVIEW by changing the “No Target Voltage” and “No Target Current” selections.
Data Status: The status indicator will flicker ON
when the sensor receives (RX status) or responds (TX status) to a Modbus command over the serial data interface.
17
Wire Function
U-Series 3 and 14
(6-wire cable)
U-Series 30 and 50 Series
(9-wire cable)
Brown
+DC input voltage (Power Input)
Blue
-DC input and signal common (Ground)
RS-232 models: RS-232 out
RS-485 models: RS-485 -
(note 2)
RS-232 models: RS-232 in
Silver
Output #1 (note 1)
or OFF
Output #2 (note 1)
OR OFF
Green
Current sourcing output
Orange
Violet
Voltage output

INTERFACES

Wires Identification

U-Series ultrasonic sensors have an attached, embedded 6.5ft cable as standard. It is a shielded 4-wire, 6-wire or 9-wire cables with the following wire assignments:
Wire
Color
Gray (data #1)
(note 2)
Yellow (data #2)
Black
White
RS-485 models: RS-485 +
Cable shield (bare stranded wire), unterminated at sensor end
4-20 mA sourcing loop (note 3)
OR Sinking Switch #1
OR Sourcing Switch #1
0-10 VDC (note 3)
OR Sinking Switch #2
OR Sourcing Switch #2
Sinking Switch #1 (note 3)
Sinking Switch #2 (note 3)
OR
Sourcing Switch #1
OR
Sourcing Switch #2
These wires are not on
U-Series 3 or 14 Sensors
Notes: (1) Output selection for the black and white wires of U-Series 3 or 14 sensors are made via OmegaVIEW (page 46) (2) Output determined by sensor model. The gray and yellow wires are also used for synchronization (page33) (3) Factory default selections (can be changed using OmegaVIEW)
Table 1 - Wire Assignments
Tinned ends are standard. Connectorized cables are also available, as are other cable lengths.
18
Current sinking output
Sensor
User Equipment
(RS-232 interface)
Single point ground
optional (recommended)
DC+
(Brown)
Blue
Cable Shield
RX
GND
DB9* DB25*
+
Power Supply
(24 VDC typical)
-
2
5
* Typical personal computer connections for
9 and 25-pin serial COM connectors
Yellow
RS-232 Wiring
Gray
TX
3
3
7
2

Ground (blue wire)

The ground wire is common to both the power supply and the output circuits.

Cable Shield (bare wire)

The cable shield is not terminated at the sensor. This wire should be terminated to equipment ground near the user equipment, preferably to a single point ground for all equipment. This is important if the cable is lengthened and/or routed near electrically noisy wiring or equipment.

Power Input (brown wire)

Connect a DC power supply to the DC+ (Brown) and GND (Blue) wires. These colors conform to EU standards. Reversing the power connections will not damage the sensor. A power supply voltage between 15-30 VDC is recommended. A +24 VDC supply is a commonly used standard. Target sensitivity and the maximum voltage output value is reduced at power supply voltages below 15 VDC. When power is applied, the
rear LED target indicator
will light and the sensor operates as described on page 31.

U-Series 3 &14 Outputs (black & white)

Each output can be either an analog, a switch, or turned OFF. Analog interfaces are described on page 20 and switch interfaces on page 23. Output selections require OmegaVIEW (see page 46).

U-Series 30 and 50 Outputs

These models provide simultaneous 0-10 VDC, 4-20 mA sourcing, 4-20 mA sinking, and two switch outputs. The default switch outputs are sinking (NPN type) but may be changed to sourcing (PNP type) or turned OFF using OmegaVIEW.

Data Connections (gray & yellow)

Serial data interfaces are described on page 26. They are used for:
• OmegaVIEW PC configuration (page 45)
• Synchronization (page 33)
• User communications between the sensor
and an external data communications device
All U-Series ultrasonic serial RS-232 models can connect to a PC USB port for OmegaVIEW configuration as shown in figure 9 with KIT-USB-
232. See Software and Interconnection (pg 14).
Figure 9 - RS-232 PC COM Port Connections
RS-485 models require the RS-485 interface kit, KIT­USB-485 for USB port connection. See Software and Interconnection (pg 14).

U-Series 3 &14 Output Selection

The U-Series 3 &14 series sensors have two user­selected outputs. These outputs connect via the black and white wires of the sensor cable.
The factory default selections are a 4-20 mA current loop connected to the black wire and a 0-10 VDC output to the white wire. Using OmegaVIEW, one or both of these analog outputs can be changed to either a sinking (NPN) or sourcing (PNP) switch or can be turned off. If turned off the associated rear status indicator is also turned off.
Refer to Outputs & Indicators on page 46 for information on using OmegaVIEW.
Make the output selections before connecting the sensor to equipment!
Output selections are not affected by a TEACH 17 reset.
NOTE: Output selection is NOT REQUIRED for U-Series 30 and 50 series sensors. All outputs are independently wired and simultaneously run.
19
4-20 mA sourcing output wire
UXLR50(PVC) = GREEN wire
Voltage output wire
UXLR50(PVC) = VIOLET wire

Analog Outputs

U-Series 3 &14 Analog Outputs

The above sensors have these analog outputs:
• Voltage and sourcing current loop outputs
• Output selection is accomplished using
OmegaVIEW (page 46). Defaults are I and V.

U-Series 30, and 50 Analog Outputs

These sensors have three analog outputs - voltage, sourcing loop and sinking loop. They are simultaneously available on separate wires and do not require selection using OmegaVIEW.

Analog Status Indication

Rear status indicators show whether the analog output is at the high value, low value or between those values as shown in
Figure 10 - Voltage Output Wiring
The default voltage output is a 0 to 10-volt DC signal proportional to the measured distance between the
endpoints set by the user. The voltage range can be
changed to 0-5 VDC using the TEACH 30 or can be set to a custom output range with values between 0 and 10 volts using OmegaVIEW (see i & j below). The analog slope can increase or decrease with distance, but all analog outputs must have the same slope. The voltage is measured relative to GND (BLUE wire). The 0 and 10-volt
endpoint distances affect both
voltage and current loop outputs and can be set anywhere in the sensor’s
operating range using the
TEACH button or OmegaVIEW.

Sourcing Current Loop Output

This figure shows a sourcing current loop connection:
USR03, UMR14 = BLACK wire ULR30, UXLR50 and
Figure 8 - Output Status Indicator

Voltage Output

This figure shows a voltage output connection:
USR03, UMR14 = WHITE wire ULR30, UXLR50 and
Operations.
Figure 11 - Sourcing Current Loop Wiring
The default sourcing loop output is a 4 to 20 mA signal proportional to the measured distance between two endpoints set by the user. The current range can be set to any values between 0 and 20 mA using OmegaVIEW (see d & e in Figure 13). The slope can increase or decrease with distance, but all analog outputs must have the same slope. In a
20
Do not ground! Differential input recommended
+
4-20 ma.
(ORG)
Sensor
User Equipment
(Current Loop Input)
+
Power Supply
(24 VDC typical)
-
Single point ground
optional (recommended)
DC+
(BRN)
GND
(BLU)
Cable Shield
Direction of current flow
Maximum loop
resistance 1K @ 24
VDC loop voltage
-
sourcing loop current flows out of the sensor,
TEACH 17: Resets all factory defaults
through the user equipment and back to the sensor GND (BLUE wire).
After teach adjustments are performed OmegaVIEW can be used to display and/or save the new

Sinking Current Loop (orange wire)

This output is NOT available in the U-Series 3 and 14 series.
configuration. The TEACH button may be disabled in OmegaVIEW to prevent unwanted changes.

Endpoints and Slope

The voltage and current loop(s) are spanned between the same two c in Figure 13). sensor’s
operating range using the TEACH button or
OmegaVIEW. All analog outputs must have the same slope, i.e., increase or decrease in value in proportion to distance. The high and low output values (voltages and currents), however, are independently adjustable in OmegaVIEW for voltage and current loops.
Figure 12 - Sinking Current Loop Wiring
The default sourcing loop output is a 4 to 20 mA signal proportional to the measured distance between two endpoints set by the user. The current range and slope are OmegaVIEW adjustable and identical to that set for the sourcing loop described above. Current flows from the power supply through the user equipment then INTO the sensor (ORG wire) as shown in Figure 12.
The analog inputs of User Equipment in
Figure 12 are either differential (both + and – terminals) or single ended (+ and
GND terminals). A differential input is recommended at the user equipment. If the user equipment is single ended (+ input and GND) the sensor and user equipment cannot share a common ground, or the current loop will not work.

Response Time

Analog response time is affected by measurement rate and filter selections (pg.37).

Analog Displays

The sensor’s calculated analog output values are shown in real time on the OmegaVIEW meter displays (page 35).

OmegaVIEW Analog Adjustments

Use OmegaVIEW to tailor the sensor for best results in the application. Analog features are shown in Figure 13. The letters used below are keyed to that figure: a) Click the
Low Endpoint: Click the numeric value to set
b)
Workspace icon to edit parameters
the distance of the low analog values (e).

Analog Teach Adjustments

The following analog adjustments can also be accomplished using the TEACH button where equipped (page 52):
TEACH 4: Analog Low Endpoint (b above)
c)
High Endpoint: Click the numeric value to set
the distance of the high analog values (d).
The analog slope will automatically reverse if the Low and High Endpoint distances (b & c) are set in reverse
order
TEACH 5: Analog High Endpoint (c above)
TEACH 30: Set voltage range to 0-5 VDC (d & e)
TEACH 31: Set voltage range to 0-10 VDC (d & e)
TEACH 35, 36, 37: no target response (h)
21
d) High Value: Click the numeric value to change
the maximum voltage or current value. The voltage and current limits are independent.
e)
Low Value: Click the numeric value to change
the minimum voltage or current value. The voltage and current limits are independent.
endpoint distances (see b &
Endpoints can be set anywhere in the
f) Click the Analog icon for additional features. g) Select the output values set at power-on.
These values exist until the first
process
is completed. h) Select the output values to be set if no target
is detected in the
i) If this sensor is a synchronized slave (page 33)
select the output values to be set if the master SYNC input is missing. These selections are grayed out if the sensor is not a slave.
j)
Range MIN: The closest distance the sensor will
measure distance (see page 34).
k)
Range MAX: The farthest distance the sensor
will detect a target (see page 34).
All sensor parameters are described in on page 52
Operating Range (j to k).
Workspace parameter changes must be saved to
the sensor to take effect, and can also be saved to disk for later recall as described on page
measurement
44.
.
22
Other Typical Uses
+
Sensor
K1
D1
Switch ON energizes relay coil -
when switch turns off diode D1
protects transistor from inductive kick
+
Sensor
Switch ON turns on LED.
R1 limits LED current
LED
R1
Gnd
+
User
Equipment
(Discrete input)
+
Power Supply
(24 VDC typical)
-
Single point ground
optional (recommended)
DC+
(Brown)
GND
(Blue)
Typical PLC Input (DC)
Cable Shield
Direction of current flow
Pullup
+
Sensor
Figure 13 - OmegaVIEW Analog Adjustments

Switch Outputs

U-Series ultrasonic sensors have two solid-state switch outputs. In U-Series 3 and 14 series sensors the switch outputs must be selected using OmegaVIEW. If selected, switch #1 is on the black wire and/or switch #2 on the white wire. In all other models they are permanently wired to the black and white wires as NPN type. In all models the switch type can be selected as either sinking (NPN), sourcing (PNP) or OFF using OmegaVIEW (page 46).

Switch Status & Output Voltage

Switch outputs normally have a corresponding rear
output status
when the switch is ON and vice versa. The indicators also provide warning of a safe shutdown under overload or over temperature conditions. They can, however, can be reassigned using OmegaVIEW. When a sinking switch is ON the voltage of the switch wire will be near 0 VDC, and when OFF will be near the voltage of the external “pull-up” source. When a sourcing switch is ON the voltage of the switch wire will be near the sensor’s power supply voltage and when OFF will be near 0 VDC.

Sinking Switch Output

indicator (■ = #1,▐ = #2) that is lit
Figure 14 - Sinking Switch Output Wiring
A
sinking switch is an open collector transistor (solid
state
switch) that sinks current through an external
load to GND when ON. The external device can be powered from a source different from the sensor.
23
Other Typical Uses (power & GND not shown)
+
K1
D1
Switch ON energizes relay coil K1 -
when switch turns off diode D1
protects transistor fr om inductive kick
+
Switch ON turns on LED.
R1 limits LED current
LED
R1
Gnd
+
User
Equipment
(Discrete input)
+
Power Supply
(24 VDC typical)
-
Single point ground
optional
(recommended)
DC+
(Brown)
GND
(Blu e)
Typical PLC Input (DC)
Cable Shield
Direc tion of curr ent flow
Sensor
Sensor
Sensor
+
+
+

Sourcing Switch Output

Figure 15 - Sourcing Switch Output Wiring
A sourcing switch provides current to an external load to turn that load ON or OFF as shown in Figure
15. Current is sourced by the sensor’s power supply.

Switch Response Time

Switch response times are affected by measurement rate and filter selections (pg. 40).

Switch Displays

The sensor’s calculated switch output states are displayed in real time in OmegaVIEW (page 35).

Switch TEACH Adjustments

Switch adjustments can be accomplished using the TEACH button (page 52) in the U-Series 3, 14, and 30 series sensors. Each switch setpoint and polarity can be changed, and the no target delay can be turned on or off.
After teach adjustments are performed OmegaVIEW can be used to display and/or save the new configuration.

OmegaVIEW Adjustable Switch Features

Basic and extended features assure optimum system settings and control functions that otherwise require external logic or time delay relays. Each switch has the following configurable features:
• Setpoint (ON switching distance)
• Polarity (ON closer or farther than
setpoint)
• Mode = Setpoint (with Hysteresis) or Window (see Figure 16)
• ON and OFF time delays for state changes
• No Target state and time delay
• Power-up state
• No SYNC states
24
Switch
Setpoint
Range MIN
Range MAX
Hysteresis
Switch State
=
ON Farther
Switch State
=
ON Closer
Hysteresis
ON in Window
Width
(
of Window
)
Green arrows indicate switch
state
(
and associated green
indicator
)
are ON
.
Switch Mode
=
Hysteresis
Switch State
=
ON Farther
Switch Mode
=
Hysteresis
Switch State
=
ON Closer
Switch Mode
=
Window
Switch State
=
ON in window
OFF in Window
Switch Mode
=
Window
Switch State
=
OFF in window
DISTANCE
DISTANCE
DISTANCE
DISTANCE
OFF
distance
OFF
distance
OmegaVIEW parameters are shown
in
BLUE
.
The OFF distance is
directly set by ALT
-
TEACH
.
Figure 16 - Switch Hysteresis & Window Modes
Figure 17 - OmegaVIEW Switch Adjustment
25
Sensor
User Equipment
(RS-232 interface)
Single point ground
optional (recommended)
DC+
(Brown)
Blue
Cable Shield
RX
GND
DB9* DB25*
+
Power Supply
(24 VDC typical)
-
2
5
* Typical personal computer connections for
9 and 25-pin serial COM connectors
Yellow
RS-232 Wiring
Gray
TX
3
3
7
2

OmegaVIEW Switch Adjustments

Use OmegaVIEW to tailor the sensor for best results. Switch features are shown in Figure 17. The letters used below are keyed to that figure: a) Click the
Setpoint: Click the numeric value to set the
b)
Workspace icon to edit parameters
distance where the switch turns ON (the switch turns OFF by reverse hysteresis distance (d))
c) Click the
Switches icon for additional features.
d) Hysteresis is the distance the target must move
in the reverse direction of the Setpoint to turn OFF.
e) The polarity can be either ON CLOSER or ON
FARTHER than the
Setpoint. This is like setting a
normally open or normally closed condition.
Reversing the switch polarity also reverses the hysteresis (d) direction!
f) Window is an alternate mode where the
switch state is
Polarity (h) inside the window
(over a range of distances) and the reverse if outside.
g) Click these numbers to enter the window SIZE.
The size is added to the setpoint to become the
window far distance.
h) The Polarity can be either ON or OFF for
targets within the window. This example shows OFF
i) Select the switch state to set at power-on. This
state exists until the first measurement process is completed.
j) If the sensor loses the target the state can be
held or set on or off (after delay k).
k) If the sensor loses a target for this time period
the no target state (j) is set. (0= immediate)
l) Time delays can be required before turning a
switch on or off. A switch state is set if a target continuously satisfies that state’s requirements for the full delay time period.
m) If this sensor is a synchronized slave (page 33)
select the output state to set if the master SYNC input is missing ( after time delay (n) grayed out when the sensor is not a slave.
n) If the sensor is a synchronized slave, a time
delay can be required before engaging the No Sync response (m). This delay is set in the
Measure dialog since it also affects the analog
outputs.
on, off or hold, and
). These selections are
o) Range MIN: The closest point the sensor will
measure distance (page 34).
p)
Range MAX: The farthest distance the sensor
will detect a target. See page 34 for a detailed description of the sensor
Operating Range.

Serial Data Interface

The YELLOW and GRAY serial data communications wires are used for three purposes:
1.
Setup – Connect to a PC running
OmegaVIEW™ software for setup, calibration, analysis, and rapid sensor cloning.
2.
User Applications – Connect to an external
system and provide distance measurement data. Several operating modes are available.
3.
Synchronization (SYNC) – Time synchronize
a group of 2-32 sensors (see page 33).
The electrical interface can be RS-232 or RS-485:
• Models ending in 232 are RS-232
• Models ending in 485
are RS-485
• All models are RS-485 in SYNC modes

RS-232 (PC COM Port)

Serial RS-232 models use a serial data RS-232 interface directly compatible with a PC COM port. The PC COM wiring is shown in Figure 18.
Figure 18 - RS-232 PC COM Port Connections
26
DC+
(Brn)
10-30 VDC
Power
Supply
+
-
User
Equipment
Input -
GND
(Blue)
SHIELD
Single point ground
Input #2
Output #1
Input #1
O
u
t
p
u
t
#
2
Data #1
(Gray)
Data #2 (
Yellow)
GND
RS-485
Port
-
+
TSPC Family
SENSOR
Gray Wires
Yellow wires
485+
485 -
Sensor
# n
485+
485 -
Sensor
#
2
485+
485 -
Sensor
# 1
485+
CONTROLLER
485 -
U-Series
Sensor
U-Series
Sensor
Before connecting to a network each sensor must be assigned a unique address and all sensors must be configured to the baud rate of the network controller, as described in following. The address assignments must also be different from other connected (non-Omega) devices.
Sensors used in an RS-485 network must be
Figure 19 - RS-232 Connections
configured in measurement activation depending on the needs of the system (page 31). Sensors used in a SYNC group must be configured with one SYNC master and the rest as slaves.
continuous or start-on-poll

RS-485 (Multi-Drop Addressable)

Serial RS-485 models use a serial data RS-485 interface that can be used over long distances. Up to 32 addressable sensors can connected to the bus. A single sensor is shown below connected to an RS­485 port. To use OmegaVIEW with these models the PC must have an RS-485 adapter connected. Adapters are available to convert COM or USB ports to RS-485.

Serial Parameters

The default parameters are 9600 baud, no parity, one stop bit (8N1), and sensor address 1.

Baud Rate Options

The baud rate is OmegaVIEW adjustable to 9600, 19200, 38400, 57600 or 115200 baud. The slower 9600 baud rate is recommended for best performance over longer cables. The 115200 baud rate is only available if measurement activation is “Start on Poll”. The selected baud rate is used for all protocols (Modbus, ASCII streaming and SYNC).

Parity

The default parity is “none”. Sensors with V27 firmware or later will automatically change parity to even based on the incoming packet. One packet error will occur, then the sensor will operate on even
Figure 20 - Serial-485 Connections

Sensor Networks (RS-485)

parity.

Sensor Address

The default sensor address is 1. The address is OmegaVIEW adjustable from 1 to 247.
U-Series ultrasonic sensors can be configured into RS-485 addressable multi-drop networks as shown below.
OmegaVIEW requires a correct sensor address to establish a connection. In general, leave the address at 1 unless using the sensor in a network. Each sensor being connected to a multi-sensor addressable network must first be assigned a unique address. Sensors with the same address will conflict and appear non-functional. Addressable multi-
Figure 21 - RS-485 Network Wiring
sensor networks are only possible with an RS-485 interface (requires serial RS-485 models). A unique address is not required for SYNC groups; however, a SYNC group can also be an addressable network when the SYNC Master is turned off.
27
OmegaVIEW includes a Group Control feature to disable the SYNC Master to allow sensor reconfiguration and/or monitoring, then re-enable the Master and resume.

Changing Communications Settings

A single sensor in the factory configuration, wired to either an RS-232 or RS-485 interface, connects to OmegaVIEW using the default serial parameters.
Serial data parameters are not affected by selecting the factory default
configuration (menu: Workspace – Default Settings, or TEACH-17)
If multiple sensors are connected into an RS-485 network each must be assigned a unique network address. The baud rate and address are changed in OmegaVIEW as:
1. Connect to the sensor (menu:
Sensor –
Connect), described on page 44.
2. Select the communications parameters (menu:
Sensor – Communications) and see:
4. The sensor will now connect (menu:
Sensor –
Connect) only using the new parameter
values.
5. All sensors must use the same Baud rate.

OmegaVIEW Network Connect

OmegaVIEW is fully functional when connected to a single U-Series ultrasonic sensor on an RS-485 network (menu: the correct baud rate and network address to establish the connection.
Sensor – Connect). Simply enter

OmegaVIEW Group Control

OmegaVIEW can update selected parameters quickly to a group of RS-485 connected sensors using menu: Master Synch is turned OFF (lower left), the group is scanned, and a list of connected sensors produced. Selected parameters can then be written to selected sensors.
First, enter the parameter values to transfer into the Workspace, disconnect the current sensor, and then select menu: the following control dialog:
Sensor – Group Control. When
Sensor – Group Control to produce
3. Select a different baud rate, or enter a unique address from 1 and 247, then click OK and see:
Click Scan to initiate a sensor search of all network addresses. Master Synch must be OFF to search. Use the buttons in the lower left of the dialog to control the Master Synch. Up to 32 found sensors will be listed in the center display area with (a) a check box, (b) the model number and (c) the activation mode (C=continuous, P=start on poll, Mx=master x phases, Sx=slave phase X). The check boxes can be individually selected, all checked using all cleared using Transfer” section on the right-side lists parameter collections that can be selected for upload to all checked sensors. Check the desired collection(s) then click
Write to begin the batch transfer.
Clear All. The “Parameters to
Select All, or
28
Group operations require OmegaVIEW to operate as the bus Master. Any other bus master must first be disabled or disconnected.

SYNC Group

Regardless of the model, when U-Series ultrasonic sensors are connected in a SYNC group (page 33) the communications interface operates as RS-485. With an RS-485 connection, OmegaVIEW can communicate with the sensors using
Control
In a SYNC group one sensor operates as a master control. The master must be shut down before OmegaVIEW can take control. OmegaVIEW will automatically detect an active SYNC master and provides the following indication and controls:
If a Master is detected, click “Master SYNC off” then confirm the status as “No Active Master!” to enable the “Master SYNC On” to restore SYNC operation.
(above).
Group Control features. When finished, click
Group
First determine and select sensor outputs using OmegaVIEW (page 46) before connecting the sensor to equipment!

Serial Data Protocols

U-Series ultrasonic sensors offer these protocol options:
3.
SYNC – SYNC master and slave sensors use
the serial interface for synchronization (page
33).

Modbus Protocol

The U-Series ultrasonic sensors and OmegaVIEW use the industry standard Modbus RTU protocol for all serial data bus communications except SYNC. Other user controllers can use this interface to obtain distance measurements, switch and analog status, temperature, Target quality, and scale factors. Request document
Communications Formats.
follows.
The sensor determines distance in Counts which are held in registers and used by OmegaVIEW or the user’s own program. A register is now available that shows the current measurement in millimeters regardless of sensor model, product ID, or scale factor.
U-Series ultrasonic Serial
A brief description

ASCII Streaming Protocol

An Omega ASCII protocol is also available that transmits an ASCII string after each measurement under continuous measurement activation. This can be used for input to displays or other devices. Use OmegaVIEW to enable this protocol in menu item
Sensor > Connect > Advanced features to
switch between ASCII streaming and Modbus protocols. After each measurement or measurement process the sensor transmits five ASCII numbers terminated with a carriage return. For example, 05261 <CR>, or in equivalent hexadecimal: 30H - 35H - 32H - 36H ­31H - 0DH. This number represents a count value proportional to the detected target distance (except 00000 which means no target was detected).
1.
Modbus Slave – This default protocol is used
by OmegaVIEW and supports sensor communications by address, typically in RS­485 networks.
2.
ASCII Streaming – A simpler continuous
ASCII protocol for one-way transmission of data to external devices (page 29).
29
Product ID
Sensor
1000
U-Series 14
2000
U-Series 3
3000
U-Series 30
U-Series 50 clamped or rear mount
4002
U-Series 50 in PVC
Sensor type
in/ct
ft/ct
mm/ct
cm/ct
m/ct
USR3, UMR14
0.003384
0.000282
0.085954
0.008595
0.000086
ULR30
0.006768
0.000564
0.171907
0.017191
0.001719
UXLR50
0.013536
0.001128
0.343814
0.034381
0.003438
The user equipment can either display the ASCII data directly, such as viewing the output data on Windows HyperTerminal or TelNet or calculate distance by converting the data to binary and multiplying by a scale factor. The scale factor varies with the sensor series. The scale factors at 69 degrees F (or with temperature compensation enabled) for each sensor series are shown below in the Scale Factor table.: For example, if the count value from a TS 14 sensor is 05251, the distance is calculated as 5251 x
0.003384 = 17.77 inches.

Polling the sensor for data

A user can obtain data directly from sensor holding registers using Modbus RTU commands. Writing to sensor registers directly is discouraged in favor of using OmegaVIEW to make configuration changes. Request document
Communications Formats
U-Series ultrasonic Serial
for more information.

MODBUS Registers Available

Available registers on all U-Series ultrasonic sensor models.
Reading any of these registers will cause the sensor to take a measurement in Start On Poll activation mode.
The following registers may be read either as single registers or as a group:
Hex Address Field 0x0208 Distance Field 0x0209 Cycle Count 0x020A Voltage 0x020B Current 0x020C Sensor Temperature 0x020D Switch States 0x020E Unfiltered Distance
Product IDs
Omega products hold product ID in register 0x0300.
Hex Address Field 0x0220 Raw Counts 0x0221 Filtered Counts 0x0222 Millimeters 0x0223 Temperature ** 0x0224 User Target Width (counts) 0x0225 Reference Target Width (counts) 0x0226 Reference Target Distance (counts) 0x0227 Scale Top 0x0228 Scale Bottom ***
**(C * 10) (i.e for 33.5 °C it will show 335) ***Where Scale Top / Scale Bottom = 0.003384 for a Series 14. This lets the user read the conversion factor

Scale Factors

4000
30
• Features Allowed
TEACH
Filters
Closer of M
Farther of M
Averaging Rate of change
Repetitively at the
interval
After each
measurement process
Last measurement process
to distance poll
Distance poll
process finishes)
After the
distance poll
Repetitively at the
SYNC phases]
Upon receiving a
command.
Receives
(distance not sent)

Operation

Power Up

The following occurs within 1200 ms of power ON:
• Target indicator set to RED
• Outputs and their status indicators set to
their power-up states (OmegaVIEW selected)
• Sensor begins first measurement or
becomes available for activation
• The analog and switch outputs are set, and
distance data becomes available, after completing the first measurement process
All sensor outputs and status indicators remain in their power-up conditions until the first
slave or start-on-poll
measurement process has completed.

Measurement Activation

Sensor measurements can be activated in four ways –
continuous, start-on-poll, master and slave. The
factory default and most common is activation options are set using OmegaVIEW by clicking the Measurement Activation selector (Figure 22).
Measure icon then using the
continuous. The
Master, slave and continuous activation selections
are also TEACH selectable in certain models (page
50) except in Sensor features affected by the activation mode are summarized in Table 2 below. Refer to the
start-on-poll mode.
measurement process definition on page 34.
Measurement
Activation
Mode
Selected
Continuous
(factory default)
Start on Poll
When the
Measurement
Starts
measurement
received (&
current
measurement
SYNC Master
SYNC Slave
[measurement
interval *
master SYNC
When the Analog
and Switch outputs
X of Y
● ● ● ● ● ● ●
● ● ● ● ● ● ●
● ● ● ● ● ● ●
Table 2 - Measurement Activation Summary
● ● ●
Slow-Fast
measurement process
are updated
measurement or
measurement or
triggered by the
After each
measurement
Serial Data Bus
(RS-232 or RS-485)
distance sent in response
Last measurement process distance sent in response
to distance poll
Sends SYNC commands
(distance not sent)
SYNC commands
31

Activation Selection

Click the OmegaVIEW Measure icon then locate the following Measurement Activation drop down menu:
Figure 22 - Measurement Activation Selections

Continuous Activation

This is the factory default. Measurements repeat continuously at the analog and switch outputs are updated, and the distance data is stored, at the end of each
measurement process. At any time, a serial data
controller can retrieve the last stored distance data by issuing a serial data read poll without effecting ongoing measurements. Continuous mode is generally used unless:
• There is an advantage to having the
sensors measure only on request (see Start on Poll)
• Multiple sensors are connected in a
synchronized group (see SYNC modes)
OmegaVIEW will detect this mode when the Sensor icon is clicked, then repeatedly issue read polls to display the distance measurements.

Start on Poll Activation

Measurement begins when the sensor receives a serial data distance read poll from an external controller (or OmegaVIEW). Upon completing the
measurement process the analog and switch outputs
are updated, the distance measurement stored, and the sensor stops measuring. The data retrieved by the poll is that of the prior distance measurement.
TEACH and several filters are disabled in Start on Poll activation (page 31).
OmegaVIEW detects start-on-poll mode when the
Sensor icon is clicked, and displays polling controls
in the upper right corner of the screen (Figure 23).
measurement interval. The
Figure 23 - OmegaVIEW Polling Controls

SYNC Master and Slave Activation

Synchronization (SYNC) is an interconnection of one
Master sensor and one or more Slave sensors in a
group (page 33), often used to prevent sensor crosstalk in close setups. Using the Measurement Activation drop down menu shown in Figure 22 configure one master to the desired number of
SYNC phases, and each slave sensor to its required
phase.
The master’s serial data interface is used only
to control slave sensor timing and no distance data is transmitted or available to OmegaVIEW analog and switch outputs continue normally in SYNCH mode, including from the master.
. Sensor
Hints & Recommendations:
• Setup and test each sensor in OmegaVIEW before selecting SYNC and connecting it to the SYNC group.
• After setting SYNC activation, U-Series ultrasonic serial RS-232 slave models lose communications with the OmegaVIEW PC because the serial interface changes to RS-
485. To restore communications, disconnect the sensor from the SYNC group, use TEACH 15 to turn SYNC off, and reconnect to the PC using RS-232 equipment.
• With an RS-485 PC connection, OmegaVIEW can communicate with an operating SYNC group using the
Sensor –
Group Control menu selections. To allow
this ability each sensor in the group must be assigned a unique network address (
Sensor – Communications menu)
before connecting it to the SYNC group.
32
Time
1 2 3
4 5 1 2
5 Phases:
t0
1 2 3
4 2
4 Phases:
31
1 2 3 2
3 Phases
:
31
1 2 2
2
Phases:
(Factory default)
2 1
1
1 Phase:
1
1
1
1
1
1 1 1 1
SYNC Interval = Measurement Interval
SYNC Interval =
Measurement Interval x 5
1
Master
(or
Slave 1)
measures

Synchronization

Groups of 2 to 32 sensors can be connected together and time synchronized for these purposes:
• Prevent sensors in close proximity from interfering with one another (“cross-talk”)
• Enable a group of sensors to measure a common target(s) at the highest possible rate
The symptom of sensor interference is an output (
analog or switch) jumping intermittently but usually
somewhat periodically to a value or state representing a target closer to the sensor than the actual target. This symptom may disappear or be less severe when filters are used (pg. 38). If interference is suspected, turn power off to all but one sensor to determine if the powered sensor’s output stabilizes (keep filters off). A SYNC group is created by connecting together all yellow wires of all sensors, then all gray wires of all sensors, as shown below (the power, analog and/or switches are wired as required for the application). One (and ONLY one) sensor is then defined as Master and all others as Slaves.
15 turns off the master. However, analog and switch outputs remain active on all sensors in SYNCH mode grouping. Group Control is found in OmegaVIEW under the Sensor pull-down menu.
Master measurements repeat continuously at the the
sync phases x measurement interval
sync interval which is
(see figure below). Slave measurements are similarly affected but offset in time according to their phase assignment (1 through 5). The as the number of slowing the
sync phases increases, therefore
measurement process timing for all
sync interval increases
sensors in the group. With a master in 1-Phase and slaves in slave phase 1 all sensors operate simultaneously as shown in 1 phase below. When the master is in 2 through 5 phases, each slave must be set for phase 2, 3, 4, or
5. Do not set a slave phase higher than the number of phases of the master or it will not operate.
Figure 24 - SYNC Wiring
Master and slave assignments can be set in advance in the OmegaVIEW they are wired using the TEACH pushbutton (pg. 50
Measure dialog (pg. 32), or after
on certain models. OmegaVIEW must be used to (a) set a master to generate 1, 3, 4 or 5 SYNC phases (the default is 2), or (b) to set a slave to phase 3, 4 or 5 (see following).
Master sensors cannot communicate with OmegaVIEW until
Group Control or TEACH 13, 14 or
The SYNC connections use the sensor’s serial data interface to control sensor timing and serial distance
)
data is not available.
If the master input is missing the slave sensors stop measuring, begin flashing the
Figure 25 - SYNC Phases and Timing
SYNC and serial data communications cannot occur simultaneously. Removing the master re-enables communications.
green as a warning (pg. 16), and after the
33
target indicator red-
no sync
Ultrasonic
Measurement
Input Rejection
(optional)
Averaging
(optional)
Distance Limiting
(optional)
ON/OFF
Time Delays
(optional)
Stored
Distance
Serial
Data
Request
Serial
Data
Response
Switch
Output(s)
Analog
Output(s)
Accepted data
Smoothed data
Distance result
Raw measurement
Measurement Activation
Continuous Start on Poll SYNC
S
t
art
delay time set analog outputs to their no sync values
and switch outputs to their
no sync states. These
conditions reverse when SYNC is reestablished.

Operating Range

The sensor measures the distance to targets within
Operating Range (target 1 to target 2). This range
the can be set in OmegaVIEW by adjusting the
MIN
and Range MAX parameters. The factory
default is the widest possible,
range
(see specifications, page 9).
dead band to maximum
Range

Range Min

The Range MIN (also called Dead band) is the closest distance that the sensor will report an accurate distance (see Specifications). Targets closer than
Range MIN may be detected, especially at close
range, but the measured distance will be
Range MIN
(or greater for secondary echoes). If the near distance is important keep the target beyond
MIN
.
Range

Measurement Process

The
measurement process includes the raw distance
measurement, followed by one or more filter options (page 38), then any switch time delays (page
41) before the result is reflected in the sensor outputs.

Range Max

The Range MAX is the farthest distance that the sensor will detect a target. Targets farther than
Range MAX are ignored. If a target is not detected
closer than
Range MAX a “No Target” condition
exists.
Under “No Target” conditions the analog and switch output values or states can be configured to either hold their prior or set specific values or states, either immediately or after adjustable time periods.
The “No Target” controls can be an important and useful tool to control system response by limiting the distance the sensor will consider a target valid.

Factory Defaults

The factory default range values are:
• Range MIN = dead band
• Analog far setpoint = Optimum range
• Range MAX = Maximum Range
Figure 26 - Measurement Process Diagram
In Start on Poll activation the entire process is performed once per poll, i.e., M Input Rejection x N Averaging measurements (page 40). Some filters are disallowed in Start on Poll (page 31). If a poll is received before an ongoing
measurement process
finishes, the ongoing process will run to completion then another
measurement process will begin.
Switch time delays can be set to implement special control functions. The most recent distance result can also be requested by an external controller over the serial data bus (page 29).
34

Sensor Viewing

When connected to a sensor (Sensor icon clicked), distance measurements are viewed in OmegaVIEW in several ways. OmegaVIEW obtains the measurements via serial data interface requests in the
continuous or start-on-poll mode. The values or
states of the selected output(s) are also displayed (sensors operating in SYNC modes cannot be viewed).

Sensor screen

Connect OmegaVIEW to the sensor (menu: Sensor –
Connect) as described on page 44. OmegaVIEW
automatically selects the the distance in real-time with a repositioning target symbol , shows analog output value(s) on meters and shows switch state(s) as symbols . Additional display icons  offer features described below.
Sensor icon , displays
Figure 27 - OmegaVIEW Distance Displays
35
Analysis Tools
Several tools are available in OmegaVIEW which are very useful in viewing sensor performance while tuning or using OmegaVIEW.

Strip Chart

Click the Chart icon to view data in strip chart format. Both filtered and unfiltered data are displayed. The strip chart is very handy to see target stability over shorter time windows.
When Reference Target Temperature Compensation mode is selected and calibration has been done, the Chart tool can show the unfiltered data in blue and the filtered (or compensated) data in green. The chart tool is useful to track compensation performance as ambient temperatures rise and fall.

Large Display

Click the Large icon to pop up a large digital display that can be viewed from afar. The display can be configured to show distance, volts, current, or switch status in a large format for easy viewing. It can be positioned anywhere and enlarged or shrunk. To bring it up any time click the Front icon.

Statistics

Click the Statistics icon to view statistics calculations. The statistics tool is very handy to see target stability over longer time windows. Both the Strip Chart and Stability windows can be displayed at once, and even linked.

Data logging

Click the Logging icon to record data to disk for view or export to Excel.
36
Measureme
Interval
Approximat
Range
5
200
1080 (2743)
10
100
540 (1372)
20
50
288 (732)
40
25
144 (366)
100
10
54(137)
200
5
24 (61)

Measurement Rate

The measurement rate is how often the sensor measures the target distance. It does not require adjustment in most applications. Default rates are:
• U-Series 3, 14: 20 Hz (50 ms
interval
• U-Series 30: 10 Hz (100 ms interval)
• U-Series 50: 5 Hz (200 ms interval)
To accommodate special requirements, the rate can be adjusted from .0001 to 200 meas./sec (
measurement intervals from 2.78 hours to 5 ms)
using OmegaVIEW. Rate selections are also available using TEACH 24 through 28 (U-Series 3, 14, and 30). TEACH-17 restores the default rate.
)
measurement
Note: Sensor current consumption increases significantly at the smallest measurement intervals (fastest cycling).
SYNC activation directly reduces the
rate
example, a U-Series 14 sensor (20 Hz default rate) set for 3 SYNC phases has the measurement rate reduced to 6.66/sec (20 divided by 3).
measurement
by the number of master SYNC phases. For

Maximum Target Distance Effects

The time required to detect a target is affected by the speed of sound in air. Sound travels at about 1 ms/ft. (3.3 ms/meter) so a target at 10 feet (3m) results in an echo delay of about 20 ms (the sound has to travel out then back). If the
interval
undetected, or may be detected in the next cycle, causing erratic measurements. The maximum distance a sensor can detect a target is the shorter of (a) the sensor model’s maximum range, (b) the user-adjustable RangeMAX parameter, or (c) the farthest distance a target echo can return before the next measurement begins (measurement rate limited). Setting the
is less than that time the target echo will go
measurement
measurement interval faster than the default may
restrict the maximum detectable target distance (see Table 3).
Measurement
s per second
Table 3 - Maximum Range vs. Measure Rate
nt
e Max

Measurement Stability Effects

If the measurement rate is set too fast the sensor may detect residual echoes from a prior measurement cycle, causing measurement instability. This is more common in liquid tanks and presents as jumpy targets or short measurements. This effect is more prevalent at cold temperatures because sound absorption in cold air is less and it takes more time for echoes to decay. Multi-echo issues are minimized by slowing the measurement rate, reducing the sensitivity, and/or using materials to absorb or deflect the ultrasound.

Output Response Time

The default response time for all outputs is the
measurement interval. The analog, switch and serial
ASCII streaming (if enabled) outputs are updated after each measurement cycle (serial data is not available in SYNC operation). The response time is affected by several sensor user­adjustable features using OmegaVIEW:
1. The
2.
measurement rate (pg. 34) can be used to
directly increase or decrease response time.
Filters (pg. 38) can be selected to process
measurements for improved stability. Some
filters update outputs after each measurement interval
Filters can decrease response time.
3.
Time Delays (pg. 41) can be used to create
system responses that might otherwise require external controllers or time delay relays. They directly delay the response of the output(s) to which they are applied.
4. For SYNC master and slaves, the increases as a multiple of the
interval
while others require several intervals.
Sync interval
measurement
times the number of sync phases.
37
1.
Input
Rejection
3.
Distance
Limiting
2.
Averaging
“Good” Data Smooth Data
* None * Farthest of M * Closest of M * X of Y (Stability)
* None * Running Average * Boxcar (Average of N)
* None * Slew Rate Limit
* Slow-Fast Limit
Time
Distance
Distance
Measurement
Analog Outputs
Serial Data
(on next poll)
Time
Delays
Switch Outputs
Timing:
Measurement
Interval
Timing:
Response Time
The factory default settings are all filters off and all
time delays set to 0. When testing a new application keep filters and time delays off for best visibility of measurement stability!

Filters

Filters are processing features that reject and/or smooth measurements, and/or limit the rate of change of the sensor distance (and therefore outputs). Their purpose is to improve sensor performance in real-world applications. The factory default is all filters OFF, where the sensor outputs are set immediately in response to each measurement (not including any switch time delays).
Keep filters off during setup to understand measurement stability, then enable filters as required for the application.

Overview

Figure 28 shows the flow of distance measurements through the filters to the outputs. Filters are applied in order of flow from left to right (input to output). None or one selection can be made from each category (Input Rejection, Averaging and Distance Limiting). As filters are enabled the output response time is generally slower. Some filter settings are not usable in applications requiring a fast response time.

OmegaVIEW Filter Selection

Click the Measure icon on the main screen to open the Measurements dialog. The location of the Filter Options is shown below.
All filters are turned off when the sensor is unlocked (TEACH mode)
When using filters, the first valid measurement after power ON becomes the initial condition for all further processing. The Filter Options are shown in block diagram below, followed by a description of each.
Figure 28 - Filters Block Diagram
38

Input Rejection Filters

As seen in figure 28, input rejection filtering precedes any averaging filtering. Input rejection filters ignore some measurements. The input to these filters is the raw sensor distance measurement. The output (“Good” data) is then input to an averaging filter (if used).
Closest of M Measurements
The sensor performs M distance measurements and rejects all except the closest. The number of samples (M) can be set to any value from 2 to 999. The
response time is slowed by a factor of M. For
example, if M=3 and the ms the successive filters or switch time delays).
This filter is useful for applications where the desired result is the closest object detected in a given period of time. Examples include detecting the peak value of material flowing on a conveyor or maintaining a measurement value of a poor target (weak or intermittent echo).
response time is 150 ms (not including any
measurement interval is 50
Farthest of M Measurements
The sensor performs M distance measurements and rejects all except the farthest. It is otherwise identical to the Closest of M filter described above.
This filter is useful to ignore an unintended or unwanted target that occasionally passes between the sensor and the intended target. Examples include ignoring mixer blades in tanks, ignoring traversing objects not the intended target, or rejecting sporadic interference (electrical, physical or acoustic).
The degree of stability required is user adjustable by changing the values of X and Y. The range of values for X is 1 to 7 and for Y is 2 to 7.
As long as each new measurement X falls within bounds the sensor response time is unaffected and the latest X is available for output (excluding averaging and switch time delays used). If the input data fall out of bounds, then a delay will occur before the filter criteria can again be satisfied. The delay for a re-stabilized target could range from 1 to X measurement intervals depending on the history of the prior Y measurements.
This filter is disallowed when using Start on Poll measurement activation.

Averaging Filters

The averaging filters receive their distance data from the input rejection filters (figure 28). The averaging filter response time is therefore affected by the rejection filter selections. If an unstable target is detected by the stability filter (x of y), the averaging filter and subsequent processing are suspended at the current distance until stability returns. The distance output of the averaging filters is rate-of­change restricted by a distance restriction filter (if used).
Boxcar Average
This filter calculates the average of N inputs (N = 2 to 255) passing through the rejection filter. The process is repeated every N inputs. The
time
is therefore slowed by a factor of N. For example, if M=3 for a rejection filter and N=10 for the Boxcar average then the update period at a 50 ms
measurement interval is 50 x 3 x 10 = 1500 ms.
response
X of Y Filter (Stability)
At least X measurements of the previous Y must be within +/- 6.25% of the latest measurement. All measurements are ignored until this condition is satisfied, i.e., the target must remain stable before the sensor will process it. If the target remains unstable a new distance measurement will never be established.
Instability is different from the “no target” condition (red target indicator).
Running Average
This filter calculates the average of N inputs (N = 2 to 255) passing through the rejection filter. The average is updated after each input rather than after N inputs as for the boxcar average. The output response of this filter is therefore smoother than the boxcar filter since the output is updated more frequently.
This filter is disallowed when using Start on Poll measurement activation.
A perfectly detected target (green) may be in motion and thereby unstable.

Distance Limiting Filters

The distance limiting filters clamp the rate of change of measured distance before setting sensor outputs.
39
Filter
(2)
Update Interval Multiplier
(of measurement interval)
Closest of M
Farthest of M
X of Y
(1)
1 (stable target)
0 (unstable target)
Boxcar Average
N
Running Average 1
Rate of Change
Slow-Fast
(1) Once detected, regaining a target will be
visibility of real-time measurements.
These filters limit the rate of change of data received from the input rejection and/or averaging filters (figure 28). The limited distance then drives the sensor outputs (not including switch time delays).
Rate of Change
A maximum rate of change of distance (∆D/sec) is limited to a maximum value, whether increasing or decreasing. The maximum value is a user-entered parameter with a range of .003 in./sec to 173 in./sec.
An example use of this filter is limiting the rate of change allowed when driving a motor or other mechanical system.
Slow-Fast
In Slow-Fast, if the target position changes quickly, the sensor assumes it is a false change but starts to recalculate slowly toward the new position. If the new position remains stable the sensor gradually increases the rate of change of measurement toward the new position until it is reached.
TEACH-6 can be used to toggle this filter on and off, and the filter can be set OFF by TEACH-17.
When turned on using TEACH-6 the filter does not operate until TEACH mode is ended! This filter is disallowed when using Start
on Poll measurement activation.

Output Response Time

The output update rate is a function of the
measurement interval, filter selections and
parameters, and switch time delays (page 41).
M
1
delayed by 1 to Y measurement intervals.
(2) During setup, turn off filters for best
Table 4 - Filter Response Time
This filter is used for targets that change position slowly but have occasional interruptions. Examples:
• Measuring a roll diameter - holds a stable roll measurement yet readjusts the measurement in a reasonable time during changeovers
• Mixer tanks - Ignores rotating mixer blades that pass occasionally between the sensor and liquid.
• Ignore unintended targets passing between the sensor and the intended target, such as a traversing mechanism on a printer ink well.
40
Assuming measurement interval I with a default of 50 ms, here are some example response times:
No filters
•
Response time = I (50 ms)
•
Closest or Farthest of 20 measurements
Response time = I * M = .05 * 20 = 1 sec
•
Boxcar Average of 10 measurements
Response time = I * N = .05 * 10 = 500 ms
•
Running Average
Response time = I * 1 = 50 ms
•
Closest of 20 and Boxcar average of 10
Response time = I * M * N = .05 * 20 * 10 Response time = 10 seconds

Time Delays

Time Delays are used to cause actions that might otherwise require external controllers or time delay relays. They delay the response of the output(s) to which they are applied and are useful for control and alarm functions. All time delays are adjustable between 0 ms to 5.46 minutes at a 5 ms resolution.

Switch Time Delays

Each switch has 3 independently adjustable delays:
• On Delay
• Off Delay
• No-Target Delay
• Force a switch state for a minimum time to
assure correct operation of other equipment

Analog “No Target” Time Delay

Analog outputs can be set to their high value, low value or not change if no target is detected. The current loop and voltage have independent selections.
A time delay begins when the no target condition first occurs. The time delay can be re-triggered, i.e., no target must exist for the full-time delay period or the time delay will be reset to zero. If the no target condition remains for the full-time delay period then the analog outputs are set to their no-target values. Analog time delay setup is shown on page 21. Example uses include:
• Force a system shutdown on loss of a target
• Controller detection of no target by setting the output value outside the normal range

No SYNC Time Delay

Under SYNC Slave activation (pg. 31) the slave sensor measurement is triggered by a master input. If that input is missing for a period exceeding the
SYNC Time Delay
to their “No SYNC” states and values respectively.
the switches and analogs are set
No

Temperature Compensation

A time delay begins when the condition that triggers it first occurs (a distance measurement that could turn a switch ON or OFF, or no target). Time delays are re-triggered, i.e., the trigger condition must remain active for the full-time delay period or the time delay will be reset to zero. If the trigger condition remains for the full-time delay period, then the corresponding action takes place (switch turns on or off). Switch time delay setup is shown on page 26. Examples uses include:
• Set an alarm if the sensor loses the target for an excessive time period, or material stops flowing on a conveyor (jam condition)
At room temperatures, a change of 10 degrees Fahrenheit will result in approximately 1% change in the speed of sound and therefore the measured distance. Omega sensors have two types of temperature compensation available, internal and external. Either can be used to reduce the impact of ambient temperature changes. They can be enabled under the OmegaVIEW >Measure > Temperature Compensation selector, or by using TEACH 32/33. The default is DISABLED.
Temperature compensation is less important if the temperature environment in which the sensor is used remains constant.
41

Internal Temperature Compensation

U-Series ultrasonic sensors have an internal temperature sensor used in temperature compensation. The sensor will not compensate for rapid temperature changes or for temperature variations between the sensor and target. Best performance is obtained when the sensor body tracks the surrounding air temperature.
The sensor should be protected from the sun or other forms of radiant or conducted heating when using the
internal temp compensation method.
Choose Internal – Constant PWR if the sensor remains powered. Several degrees of self-heating are allowed for in this compensation mode. A warm­up period of approximately 30 minutes should be allowed when using Internal – Constant PWR mode.
Choose Internal – Periodic PWR if the sensor is only powered to take a measurement. Temperature compensation will be done without allowance for self-heating.

External Temperature Compensation Using RTTC

Reference Target Temperature Compensation (RTTC) is available in OmegaVIEW version 1.6.200 and higher. Your sensor firmware must be version v47 or higher which can be installed from OmegaVIEW 1.6.200 or higher at menu item
>Update Sensor Firmware…
RTTC.
RTTC is a temperature compensation method that uses a fixed reference target in the measurement beam to allow the sensor to correct for temperature in the measurement path. RTTC takes two measurements each cycle. One is of the reference target near the sensor and the other is the user target at some distance. This method is best for removing diurnal temperature effects that cause measurement drift in applications where more critical measurements are required. It requires a reference target coupled to the sensor. The user can install an accessory reference target from Omega or utilize a target that is added to the sensor mount. This method can track rapid changes in temperature and is not affected by sun or artificial heating sources acting on the sensor. A calibration must be
before you can use
Sensor
done when enabling RTTC. Calibration can be done at any time or temperature.

Reference Target Calibration

Once the reference target position has been calibrated in sensor memory, any deviation in its position later is attributed to a temperature effect on the speed of sound. The correction applied to the reference target distance is proportionately applied to the user target distance, thereby correcting for temperature effects over that greater distance.
A reference target is a small surface or rod in the sensor’s sound cone at a standard distance of about 7”, 14”, or 21” from the sensor face depending on model (7” for the 3 and14, 14” for the 30, 21” for the 50 series). Accessory reference targets are available from Omega. A custom target can be installed at a non-standard distance. It must be carefully placed in the sound detection area, be a flat surface or curved, and if a rod it should be perpendicular to the sensor axis. See the RTTC article at Omega.com/support.
There are two basic steps to calibration. In the first step, before enabling Reference Target, the far (user) target is acquired and its echo stabilized. The second is calibration using the RTTC calibration routine found in OmegaVIEW.
Step 1: Optimize the User Target echo
The sensor should be mounted in a secure way for calibration. A tape measurement must be made of the true distance from sensor to the user target. The sensor must be perpendicular to the target surface. The sensor or the user target should not move during the calibration process. Choose a user target at a distance of at least 1/4 the sensor’s maximum working distance and greater if possible.
If the user target is not detected correctly due to the reference target, increase the Range MIN term to blank the reference target.
than the reference target’s distance is required to blank that echo and it must be uploaded to the sensor.
A value greater
42
Open the advanced window found by clicking
Workspace > Measure > Advanced... A graphic of
sensor sensitivity over time (distance) is displayed. Below are three slide adjustments, Starting Distance, Slope and Linearity. Move the slope slider until MAX Gain occurs at the sensor’s Optimal distance found in the Specifications section of this manual. Click
Sensor
. The intended user target should now be seen in the Sensor view. If the value is not correct it will be corrected in the next step.
Step 2: Calibration
Start in Sensor view. Navigate to menu item
>Reference Target Calibration….
is Cal step one for Reference Target Validation. The MIN Range and MAX Range parameters are automatically adjusted to allow the standard reference target to be captured. If it is not captured, uncheck the Limit Range box for non-standard user­supplied reference target use. The echo strength graph should be green. If red, increase the Starting Gain to 6 or 9dB and click the Reset button. When there is a green echo strength seen, low standard deviation and no errors, click “
OK >OK and Upload Workspace to
Sensor
The first window
Go to Cal step two”.
In Cal step two the user target distance is shown. If the value is approximately correct continue by clicking the up or down arrows to bring the distance to the known value taken by tape measurement. Use the Reset button to assist in settling the distance value. When it agrees with the known distance and is stable with no errors, click
If Cal step two is unsuccessful because the proper user target is not showing, click to the
Measure >Advanced… window and move the
Slope slider left if no target was found or farther to the right if the target was the wrong one. Hit
OK
and Upload Workspace to Sensor. Restart Step 1.
When finished, Reference Target mode will display two boxes in Sensor view beside the distance display box. The R box is green if the reference target is being detected; red if it is not. The U box is green if the more distant user target is detected; red if it is not. If the Reference box goes red the sensor will continue to use the last known position of the reference target in its calculations. Correct the missing target and repeat the calibration above. If there are any adjustments to sensor speed, power, or sensitivity a new calibration should be done. If the sensor is changed or the reference target removed and replaced redo the calibration. If the wrong User target is occasionally detected, increase the Range MIN term for foreground interference, or lengthen the SLOPE distance if in the far region.
A significant improvement in measurement stability and accuracy is possible with Reference Target Temperature Compensation. Temperature changes, sunshine on the sensor, heating of tank interiors etc. do not affect the sensor measurement as they could with the internal compensation modes. S sensor installation requires the extra length associated with the reference target and allowance for this change in sensor height must be made.
FINISH.
CANCEL and return
OK >
43

OmegaVIEW Software

OmegaVIEW software allows you to select and calibrate sensor outputs; modify sensor features (parameters); view, analyze and/or log measurements for performance evaluation; and save Setups to disk for later recall and application cloning.

Install OmegaVIEW

OmegaVIEW runs on a Windows PC and connects to a U-Series ultrasonic sensor via a serial data COM port or, with suitable adapter, via a USB port. Get OmegaVIEW at omega.com/en-us/ftp search by model number
and

Application Setups

A setup is a particular combination of sensor
parameters that you establish for an application. Setups can be created or changed in the OmegaVIEW workspace, or moved in/out of the workspace from/to the sensor or file as shown below:
or in pop-up dialogs by clicking one of these icons:
Sensor view contains current measurement, switch status and analog level.
• Main Screen View
The main screen displays a setup of (a) an attached sensor, (b) a file stored on the computer disk, or (c) the workspace, as selected by these icons:
In this example the Workspace is displaying on the main screen (icon is outlined, with bold underlined title), and the workspace matches the file but not the attached sensor. Click the EQUAL sign to see a printable list of all sensor parameters. Click the NOT EQUAL sign to see which parameters aren’t equal between views.
If the File icon is grayed out, clicking it will open a dialog to select a file from the computer disk. If the Sensor icon is grayed out, clicking it will open a Sensor Connect dialog to connect a sensor.
• Main OmegaVIEW Screen
You have two screens available: Workspace view and Sensor view. Setup parameters are viewed and changed on the Workspace screen

Moving a Setup

Setups can be moved between the Workspace and a disk file, or between the Workspace and a sensor. Movement is accomplished in three ways:
1. Using Icons - use the mouse to either (a)
right-drag or (b) shift-left-drag the
Workspace icon to either the File or Sensor
icon, or vice versa. All movement must be in or out of the workspace. For example, to move the workspace to the sensor drag the Workspace icon as shown below:
44
2. Using Menu selections:
File > Read File to Workspace File > Write Workspace to File Sensor > Move Sensor to Workspace Sensor > Move Workspace to Sensor
3. When connecting a Sensor – When using
menu
Sensor >Connect (page 45)
OmegaVIEW asks if you want the setup copied to the workspace. Click
Yes to copy it.

Creating a Setup

Setups are created or modified in the workspace. There are 3 ways to create a new Setup:
1. Start with a Factory Default – Click Workspace
>Default Settings. Select the model of the sensor you intend to use with the new setup. When a sensor is connected, only the correct factory default can be selected.
2. Start with a Sensor – Move a setup from a
connected sensor into the workspace.
U-Series ultrasonic serial RS-485
models require a RS-485 interface converter
1. Install a serial adapter between the sensor and USB port on the PC. Use the adapter included with a Omega software kit (page 9) or wire it yourself (page color to the adapter’s terminals. Do not let unconnected wires touch anything.
2. Apply sensor power: The rear target indicator should be lit (page 15).
3. Logical Connection: Connect OmegaVIEW to the sensor using menu selections Sensor >
26). Connect the sensor wires by
Connect.
3. Start with a File – Move a previously stored disk file into the workspace.
After loading, the workspace the parameters can be modified, then moved to a file or uploaded to a sensor. If the setup is not uploaded or saved it is lost when exiting OmegaVIEW.

Saving a Setup

Make the workspace changes you want to test, saving them to the sensor as often as needed until the sensor is operating as needed. When finished, save the workspace to a disk file for future reference or cloning (see Moving a Setup). Use a meaningful filename when saving. You are given opportunity to enter notes during the save operation. Notes are saved with the file and NOT loaded into the sensor with the setup later.

Connect a Sensor

OmegaVIEW requires both a physical and logical sensor-to-PC connection. Physical options include a USB-to-COM adapter (see Omega offerings on page
14).
4. The Connect Sensor dialog then appears. Choose the COM port, Baud rate, and Network Address and click Connect. If the COM port is unknown, unplug your USB cable and click COM Port Survey and note the report. Plug in the USB cable again and repeat the survey. The COM port that appears is the correct one. A default sensor has 9600 Baud rate and Network Address 1. Click Connect:
When the connection is made a copy of sensor parameters will be uploaded to OmegaVIEW Workspace if the Update Workspace box is
45
UMR14 Sensor Found!
COM2 @ 9600bps
checked. If you intend to clone a sensor with the current Workspace, uncheck the box.
5. If the following message appears
check the (a) wiring, (b) power and (c) interface selections. Check use
Find Sensor to scan all sensor addresses.
All Ports or All Baud rates and
OmegaVIEW will identify the first sensor found.
6. When a sensor is found this message appears:
Network Address: 1
Click OK and the Connect Sensor dialog is redrawn with the correct parameters (step 4).
• If the sensor isn’t found, check that the serial to USB converter matches the sensor serial type found on the label.

Outputs & Indicators

U-Series 3 and 14 sensors are factory configured with the voltage and current loop outputs selected. Other selections are possible.
For U-Series 30 and 50 sensors the following 9-wire dialog appears. Note that each output has a separate wire in these models.
Select the outputs before connecting
your equipment. Do not change outputs when connected to operating equipment!
After connecting a sensor, click this icon to select or reconfigure the outputs and indicators.
For U-Series 3 and 14 sensors the following 6-wire dialog appears. The factory default outputs are 4-20 mA current loop (black wire) and 0-10 VDC (White wire), and the square indicator displays analog status and the rectangular serial data TX.
46

Output Indicator Selection

Choose which function will be shown by each output indictor found on the rear of U-Series 3, 14, and 30 sensors (except serial-only models). Reference Target can only be selected once Reference Target mode is enabled in the Measure window. Switch choices are only accepted when the output has been designated a switch output in the Wiring window. The choices for the Square and the Rectangular indicator are the same, however the Square indicator can only indicate Switch #1 while the Rectangular indicator can only indicate Switch #2.
If Indicator or wiring changes are made on either of these dialogs and the OK button clicked, the changes are made and the sensor automatically disconnects from OmegaVIEW: Reconnect OmegaVIEW to the sensor (page 45) to resume OmegaVIEW with the new outputs.

Switch Dialog

To modify switch output features not available on the Main Screen, click this icon to display the Switch dialog.

Measurements Dialog

To modify measurement parameters not available on the Main Screen, click this icon to display the Measurements dialog.

Analog Dialog

To modify analog output features not available on the Main Screen, click this icon to display the Analog dialog.
47
This dialog is used to change activation (Continuous, SYNCH, or Start on Poll), the rate of measurement, temperature compensation mode, sensitivity, and to apply filters.
The measurement rate is adjustable by changing the interval between measurements. A sensor will run at that rate continuously, or if filters are being used, will accumulate samples at the interval spacing.
For additional information see the Filters and Temperature Compensation sections in this manual.

TEACH Enable / Disable

The TEACH feature is available on U-Series 3 and 14 series. Once connected to OmegaVIEW, the TEACH
button will be displayed for these models.
The button can be disabled for security so that changes cannot be made at the sensor.
To disable the sensor TEACH button, click this icon. The left version of the icon shows TEACH enabled and the right version disabled. Teach adjustment is described on page 50.
only after the configuration is moved to the
The button is disabled
sensor!
For information on using the TEACH functions see the TEACH-ADJUST section later in this manual.
Temperature Compensation is available for several operating modes. Reference Target mode requires a reference target attached to the sensor. Custom heat allowance is available when using the internal temperature compensation sensor and under constant power mode.
The sensor can run continuously or only when polled for data. It can be run in the SYNCH mode with other sensors to measure either in phase or out of phase with other nearby sensors as an application requires or to solve an interference issue.
Echo Strength Indicators
The screen includes an Echo Strength indicator. It will be BLUE when the echo strength is sufficient. If echo strength drops low, it turns RED. Improving the target size and orientation, or an adjustment of sensor parameters such as power or
sensitivity settings can improve echo strength.
When Reference Target Temperature Compensation mode is used, an additional echo strength indicator is displayed for the Reference Target in GREEN. If the Reference Target echo strength is low that bar turns RED and should be corrected
by running a new calibration.
48

Sensor Adjustment

Sensor setups are made in the Workspace then uploaded to the sensor. The screen image below shows the screen with the selected.
1) Setups can be moved between the Workspace and a disk file or sensor (see page 44).
Setup changes do not take effect until uploaded to the sensor!
Workspace icon
Remember to save
setups to disk for future recall.
2) Click one of these ICONS for extended features associated with the analog outputs, switch outputs, measurements or TEACH button.
Analog adjustments: see page 21 Switch adjustments: see page 26 Measurement adjustments: see page 47 Teach Security: see page 48
3) Enter up to 32 characters to describe a setup. This reminder text is stored in the sensor or disk file when the parameters are moved or saved.
4) Click the distance text to edit the
Range
(see page 34). Range MIN is the left parameter and Range MAX the right, e.g., clicking the 4.00 inch (left) value yields:
Enter a new value then press <Enter>.
5) Click the distance text of high and/or low analog endpoints to calibrate the analog outputs. The voltage and current outputs share the endpoints. Right-click either value to
Operating
reverse the slope.
6) Click text of the high and/or low values to change the output range. The voltage and current loop outputs are independently adjustable.
7) Click the distance text of the switch setpoints to calibrate the switch ON distances. Hysteresis and window options are found by clicking the Switches icon (page 26). Right-click the value to
toggle the switch state.
8) These icons are grayed out in Workspace but operate when connected to a sensor (click
Sensor icon). See Sensor Viewing on page 35.
9) Equality symbols indicate whether the Workspace is equal or not to the File and Sensor. Click on an unequal sign to reveal a printable list of differences. Click an equal sign to get a printable list of all parameters.
49

Teach Adjust

On the U-Series 3, 14, and 30 series models many sensor features can be adjusted using the rear
TEACH button and Target Status Indicator.
These are called “teachable” because, for some features, the sensor stores actual target measurements as calibration distances for analog endpoints and switch setpoints. All changes are stored in non-volatile memory and retained when power is off. A list of Teach features is included in Table 5. Document references such as “TEACH-3” correspond to the features listed in that table.
TEACH usage is not required. All adjustments can be done in OmegaVIEW, where additional features are available that cannot be set with TEACH
.
For security, the Teach button can be disabled using OmegaVIEW. Teach 12-15 remain enabled in a SYNC sensor.
When setting analog or switch distances keep the target farther than the greater of the dead band or RangeMIN or invalid settings will occur.

Unlock, Lock and ALT-Teach

Locking prevents using Teach to change sensor features. The sensor is initially “locked” and must be unlocked using TEACH-3 before other Teach adjustments can be made. When unlocked the
status
indicator color indicates target status but slowly flashes on and off (pg. 16). An unlocked sensor will re-lock:
• When TEACH-3 is used again (manual re-lock)
• 15 minutes after last use of the
• When input power is cycled off and on
TEACH button.
target
the high value (10VDC, 20 mA or OmegaVIEW high values) be adjusted in any sequence. The endpoint distances can be in any order, allowing increasing or decreasing analog slope. Adjustment is made easy by pointing the sensor at the actual target then using the endpoint. Settings take effect only if the target indicator is green. Endpoints are common to both the voltage and current outputs. The default range for the voltage output is 0-10 VDC but can be changed to 0-5 VDC using TEACH-30. The no-target response can be set using Teach-35-
37.
endpoint using TEACH-5. The endpoints can
TEACH button to memorize each

Switch Output Adjustments

outputs turn ON at their setpoint distances,
Switch
set using TEACH-7 for a wire) and TEACH-9 for a wire). The OFF distances are set using ALT-TEACH-7 and ALT-TEACH-9 respectively or are the factory default of 0.25 in. (6.35 mm). Both switches turn OFF if no target is detected for 1 second (disable this feature using TEACH-20). The polarity of each
switch on Output #1 (BLACK switch on Output #2 (WHITE
switch can be changed between
ON Closer than the setpoint or On Farther than the
setpoint using TEACH-8 for Output #1 and TEACH­10 for Output #2.
NOTE: This reverses the direction of the OFF distance from the Setpoint!

Factory Configuration

TEACH-17 will restore factory default operation and the default values described in Table 5.
The output selections, communications parameters and number of SYNC phases are not affected.
Additional features are available using ALT-Teach. ALT-Teach is entered using TEACH-3 followed by TEACH-2 (see Table 5). ALT-Teach status is indicated by a double flashing indicator.

Analog Output Adjustments

The voltage and current outputs operate over adjustable distances (span) defined by setting the
endpoints. The voltage and/or current loop outputs
vary linearly with the target distance between the endpoints. Endpoints can be set anywhere between the
rangeMIN and rangeMAX using Teach-4 and 5.
The analog low value (0VDC, 4 mA or OmegaVIEW low values)
endpoint is adjusted using TEACH-4 and

Other TEACH Features

These and more can also be set in OmegaVIEW:

Measurement rates are set using Teach-24 to 28.
More options are available using OmegaVIEW.
SYNC and Continuous Activation modes are set
using Teach 12-14 are used to select SYNC modes and Teach-15 to revert back to continuous operation. Activation modes are described on page
31.
Temperature compensation is OFF by default. It
can be turned ON using TEACH-32 or OFF using TEACH-33. See page 41.
50
Instructions
U-Series Ultrasonic Sensors – Installation Operating Instructions
TEACH: Unlock (or re-lock) sensor’s TEACH capability. Sensor automatically locks 15 minutes after last use of
the
or is power cycled.
ALT-TEACH: First unlock with TEACH-3, then hold button for 2 more flashes to enter (2 again to exit). See
4 in.
10 cm
1.75 in.
4.4 cm
10 in.
25.4 cm
120 in.
427 cm
24 in.
61 cm
240 in
610 cm
12 in.
30.5 cm
12 in.
30.5 cm
36 in.
91 cm
24 in.
61 cm
18 in.
46 cm
48 in.
122 cm
Factory Default = Continuous (SYNC
off)
Set FACTORY DEFAULT CONFIGURATION: Restores all parameters to the Factory Setting shown in the List of
Switch NO TARGET delay = ON (delay = 1 second)
Switch NO TARGET delay = OFF (delay = 0)
Set
to default (see page 34
Set
to 2x default (see page 34
Set
to 5x default (see page 34
Set
to 10x default (see page 34)
Set
to 1/Sec (see page 34)
Set voltage output range to 0-5 VDC
TEACH
COUNT
TEACH Feature Description
(U-Series 3, 14, and 30 models)
(Note 4)
3
4
5 Use present measured target distance as the 10 VDC/20 mA/or custom hi endpoint
6 Toggle Slow-Fast filter (pg. 40) ON and OFF (exit TEACH to enable filter!) OFF 2,5
7 Use present measured target distance as the switch #1 setpoint
8 Reverse (toggle) switch #1 polarity (ON closer than setpoint/ ON farther) ON Closer 2,8
9 Use present measured target distance as the switch #2 setpoint
10 Reverse (toggle) switch #2 polarity (ON closer than setpoint/ ON farther) ON Farther 2,8
12 Set Activation to SYNC MASTER (see pages 32 and 33) 6,7
13 Set Activation to SYNC SLAVE phase 1 (see page 32 and 33) 7
14 Set Activation to SYNC SLAVE phase 2 (see page 32 and 33) 7
15 Set Activation to CONTINUOUS (exit SYNC Master or Slave activation)
TEACH button
ALT-TEACH features listed at bottom of this table.
Use present measured target distance as the 0 VDC/4 mA/or custom lo endpoint
Factory Defaults Set by TEACH 17
U-Series 14 U-Series 3 U-Series 30
1
Note
2,3,5
2,3,5
2,3,5
2,3,5
2,7
17
20
21
24
25
26
27
28
30
Adjustable Parameters, Appendix B, including those shown in columns 3-6 of this table.
The following are NOT affected: Interface selections (black & white wires), communications (network address and baud rate), Master SYNC number of phases
measurement rate
measurement rate
measurement rate
measurement rate
measurement rate
)
)
)
51
Factory Default = 1 second delay 2
20 per second 10 per sec 2
Instructions
U-Series Ultrasonic Sensors – Installation Operating Instructions
Set voltage output range to 0-10 VDC
Temperature compensation ENABLED (last mode configured, or else Constant PWR mode)
Temperature compensation DISABLED
Analog NO TARGET response = HOLD (no change)
Analog NO TARGET response = LOW OUTPUT (4 mA, 0 VDC or custom low)
Analog NO TARGET response = HI OUTPUT (20 mA or 5/10 VDC, or custom hi)
ALT-TEACH (see TEACH-3 at top of table)
12.25 in.
31.1 cm
12.25 in.
31.1 cm
36.25 in.
92.1 cm
23.75 in.
60.3 cm
17.75 in.
45.1 cm
47.75 in.
121.3 cm
Notes:
sensors Operating Range.
TEACH
COUNT
(Note 4)
31
32
33
35
36
37
7
9
TEACH Feature Description
Factory Defaults Set by TEACH 17
Note
(U-Series 3, 14, and 30 models)
U-Series 14 U-Series 3 U-Series 30
Factory Default = 0-10 VDC 2
Factory Default = DISABLED 2
Factory Default = HOLD 2
Use present measured target distance as the switch #1 OFF distance.
Use present measured target distance as the switch #2 OFF distance.
1. The sensor must first be UNLOCKED (3 blinks) before making any of the Teach adjustments shown in this table. The target indicator will indicate the unlocked condition as shown in on page 16.
2. When a Factory Default configuration is set using TEACH-17 this feature is set to this value.
3. The sensor must be detecting the intended target in range (GREEN Target Status Indicator) while setting this feature.
4. When the TEACH button is held pressed the Target Status Indicator will blink RED. The TEACH COUNT column shows the number of times the indicator must blink to set the listed TEACH feature. Release the TEACH button after the indicated number of blinks. If the TEACH button is released mid-blink, that partial blink is included in the count.
5. In the TEACH mode all enabled sensor filters are disabled to allow the sensor outputs to quickly reflect the actual target distances during the calibration process.
6. The factory default Master Number of Phases is 2. If the number of phases is adjusted using OmegaVIEW it is unaffected by any TEACH feature, including Teach
17.
7. If the Teach button is disabled using OmegaVIEW, Teach features 12 through 15 remain enabled in sensors set as a SYNC Master or Slave to permit mode changes without OmegaVIEW. An RS-232 sensor placed in SYNC mode will no longer connect to OmegaVIEW via RS-232 until reverted to normal operation using TEACH-15.
8. When reversing a switch polarity using Teach-8 or Teach-10, the OFF distance of that switch (set by ALT-Teach-7 or 9) is reversed in direction about the setpoint by the “hysteresis” distance (the difference between the ON and OFF distances). The Teach reversal is not executed if the OFF distance would be out of
2,3,5,8
2,3,5,8
Table 5 - Pushbutton TEACH Features List
52
U-Series Ultasonic Sensors – Installation Operating Instructions
Teach?
General Parameters
These parameters are available on the OmegaVIEW Main Screen.
This text:
here>
The shortest distance the sensor will provide target measurements.
measurement at a multiple of the actual distance.
The range of distances between the Range Min and Range Max,
reflections.
Parameters that Affect Measurements
These parameters are available by clicking the OmegaVIEW MEASURE icon.
Measurement
The period between measurements.
► TEACH 24-28 are used to select specific measurement intervals
Temperature
Temperature compensation can be turned ON or OFF.
reinstated, or default Constant PWR mode)
Filter options include Closest or Farthest of M, X of Y, Running or
► TEACH 6 toggles the Slow-Fast filter on and off
Continuous (at measurement interval)
► TEACH 12,13,14 and 15 set activation modes
SYNC Phases
The number of SYNC phases generated by a SYNC Master (pg. 33)
2 ♣
The time a SYNC Slave sensor must continuously fail to detect a SYNC
Values: 0 ms to 5.46 minutes (resolution 5 ms)
Power Save reduces average power consumption.
Options: Enabled and Disabled.
Instructions

Appendix A – List of Adjustable Features

These parameters can be changed using Omega OmegaVIEW. Those that can also be set using TEACH are indicated with a ► in the Teach? column. Parameters are permanently stored in the sensor memory. Features marked with ♣ in the Factory Settings column are NOT reset by TEACH 17. ♦ = implied parameters (not directly settable)
Feature
Description
Range Min
Range Max
Operating Range
♦
Interval
(p 34)
Description
A 32-character text field to describe the application setup. This serves
as a reminder when a setup is retrieved from a sensor or disk file. It is
only for reference and does not affect sensor operation.
Closer targets may have multiple reflections resulting in an incorrect
The farthest distance the sensor will provide target measurements. See page 8
between which the sensor will detect a target. Targets closer than
Range Min may still be detected (at incorrect distance) due to multiple
►
Values can range from 5 ms to 1.275 sec at 5 ms resolution.
As Shipped
from Factory
<describe
configuration
See page 8
♦
See page 8
Compensation
►
► TEACH 32 = Enabled, TEACH 33 = Disabled (Last used mode
(p 41)
Filters
(p 38)
►
Boxcar average of N, Max Rate and Slow/Fast Rate
Start on Poll (Measure upon receiving serial data read poll)
Measurement
Activation
►
SYNC Slave 1, 2, 3, 4 or 5 (at sync interval, measures when receive
(p31)
No Sync Delay
Power Save
input before setting the No SYNC switch state(s) or analog value(s).
SYNC Master (continuous at sync interval)
associated SYNC input from SYNC Master)
(sync interval = measurement interval x SYNC phases)
53
Disabled
All filters OFF
Continuous
0 ms
Disabled
U-Series Ultasonic Sensors – Installation Operating Instructions
Security Parameter
TEACH
(select models)
The TEACH button can be disabled for security purposes.
TEACH is always enabled in a SYNC master or slave.
Parameters that Affect Switch Outputs
parameters are obtained by clicking the Switches icon.
U-Series 3 and 14: One or two switch outputs may be optionally
no selection required.
Hysteresis: Switch turns ON at the Setpoint and OFF after the distance
Options: Setpoint or Window
Instructions
This parameter is toggled on and off by clicking the Teach icon.
Pushbutton
Switch Output
Selection
Options are Enabled and Disabled.
(if selected)
Setpoints are available on the OmegaVIEW Main Screen. Other
selected (see page 46). The factory default is none selected.
When Switch #1 is selected it exists on the BLACK wire. When Switch #2 is selected it exists on the WHITE wire.
Switches are configurable as sinking (NPN) or sourcing (PNP) type.
If both are selected, they are independently adjustable.
U-Series 30 and 50 Series: Two switches always available,
Enabled
♣
reverses direction by at least Hysteresis
Switch Mode
Window: The Switch State is set in a distance window beginning at
Window Near and ending at Window Far from the sensor
54
SW #1: Setpoint SW #2: Setpoint
U-Series Ultasonic Sensors – Installation Operating Instructions
The switch state set when power is first applied. This state remains until
Options: ON and OFF
The distance where a switch changes from OFF to ON.
(► TEACH 7 = SW#1, TEACH 9 = SW#2)
If Switch Mode = Hyst: Direction of target through Setpoint causing ON
(► TEACH 8 = toggle SW#1 state, TEACH 10 = toggle SW#2 state)
Switch action if no target is detected (TARGET LED = RED) for a time
Options: ON, OFF and HOLD (no change)
The minimum time the sensor must continuously fail to detect a target
(► TEACH 20 = 1 second, TEACH 21 = 0 ms [OFF] )
The distance a target must change in the reverse direction of the ON
Mode)
The minimum time the sensor must continuously measure a distance
Values: 0 ms to 5.46 minutes (resolution 5 ms)
The minimum time the sensor must continuously measure a distance
Values: 0 ms to 5.46 minutes (resolution 5 ms)
Switch state set by a SYNC Slave sensor with no master SYNC input
Options: ON, OFF and HOLD (no change)
See description under Parameters that Affect Measurements. This
parameter is shared by all analog and switch outputs.
The window distance farthest from the sensor for a switch in the Window
mode.
Setpoint + 0.25
inches
The window distance closest to the sensor for a switch in the Window
also change to maintain a constant window width.
Instructions
Power-Up State
Setpoint
Polarity
No Target State
No Target Delay
Hysteresis
►
►
►
completion of the first Measurement Cycle or Measurement
Process.
Options: On Closer or ON Farther
If Switch Mode = Window: Switch state when target detected in window
Options:
period exceeding the switch’s No Target Delay.
before setting the No Target State
Values: 5 ms to 5.46 minutes (resolution 5 ms)
state (Setpoint) to turn OFF (Setpoint Mode)
Values: 0 to 221.77 in. (5.63 m)
(Warning if result surpasses Range Window for selected Switch
ON or OFF
SW #1: OFF SW #2: OFF
See page 8
SW #1: ON Closer
SW #2: ON
Farther
SW #1: OFF SW #2: OFF
SW #1: 0 ms SW #2: 0 ms
SW #1:
0.25 in. (6.4 mm) SW #2:
0.25 in. (6.4 mm)
On Delay
Off Delay
No Sync State
No Sync Delay
Window Far
Window Near
representing an ON condition before setting the Switch State to ON
representing an OFF condition before setting the Switch State to OFF.
(target indicator = red/green) for a period exceeding No Sync Delay.
►
NOTE: If Window Near is changed by TEACH the Window Far value will
mode.
(► TEACH 7 = SW#1, TEACH 9 = SW#2)
SW #1: 0 ms SW #2: 0 ms
SW #1: 0 ms SW #2: 0 ms
SW #1: OFF SW #2: OFF
0 ms
Same as
Setpoint
55
U-Series Ultasonic Sensors – Installation Operating Instructions
Teach?
Parameters that Affect Analog Outputs
parameters are obtained by clicking the Analog icon.
U-Series 3 and 14: Each analog output may be optionally selected (see
Slope, No-Target Delay and No Sync Delay.
The analog slope increases or decreases with distance depending on the
The current min and max values must be separated by at least 0.2 mA.
One end of the range of distances over which the analog outputs are
be reached but the sensor operates properly for in-range targets.
One end of the range of distances over which the analog outputs are
never be reached but the sensor operates properly for in-range targets.
Distance
Analog Output
Value
Range Min
Low Endpoint
High Endpoint
Range Max
Analog Window
Range Window
Low Value
High Value
Increasing Analog Slope
Distance
Analog Output
Value
Range Min
High Endpoint
Low Endpoint
Range Max
Output is “No Target
Value” when outside
Range Window
Analog Window
Range Window
Low Value
High Value
Decreasing Analog Slope
Output is “No Target
Value” when outside
Range Window
Output is “No Target
Value” when outside
Range Window
Feature
Instructions
Description
As Shipped
from
Factory
Analog Selections
Analog Window (analog shared)
♦
(if selected)
Endpoints are available on the OmegaVIEW Main Screen. Other
page 46). The factory default is both selected.
When Current Loop is selected it exists on the BLACK wire.
When Voltage is selected it exists on the WHITE wire.
U-Series 30 and 50: V and I always available, no selection required.
Note: The voltage and current share the same Analog Window, Analog
The range of distances between the Low Endpoint and High Endpoint,
between which the voltage and current outputs are linearly scaled to
change between their Low Values and High Values respectively.
Current
Selected
Voltage
Selected
♣
Between the
endpoints
listed below
Analog Slope
(analog shared)
♦
Low Value
Endpoint
(analog shared)
High Value
Endpoint
(analog shared)
relative positions of the Low Value Endpoint and High Value Endpoint.
The current and voltage must have the same slope.
The voltage min and max values must be separated by at least 0.1 VDC.
►
4
►
5
scaled. At the Low Value Endpoint distance the outputs are
the Voltage Low Value and/or Current Low Value.
If this distance is outside the sensor’s Operating Range the value will not
scaled. At the High Value Endpoint distance the outputs are
the Voltage High Value and/or Current High Value.
If this distance is outside the sensor’s Operating Range the value will
56
Increasing
♦
See page 8
See page 8
U-Series Ultasonic Sensors – Installation Operating Instructions
Voltage output for targets detected at the High Value Endpoint (and
(► TEACH 30 sets this value to 5 VDC, TEACH 31 to 10 VDC)
Voltage output for targets detected at the Low Value Endpoint (and
(► TEACH 30 or 31 sets this value to 0 VDC)
Current output for targets detected at the High Value Endpoint distance
Value must be at least 2.0 mA above the Current Low Value.
Current output for targets detected at the Low Value Endpoint distance
Value must be at least 2.0 mA below the Current High Value.
The voltage output value set when power is first applied; remains until
Voltage goes to Voltage Low Value or Voltage High Value.
Current loop output value set when power is first applied; remains until
Current goes to Current Low Value or Current High Value.
Voltage value if no target is detected (TARGET LED = RED) for a time
Options: LOW, HIGH, and HOLD (no change)
Current loop output value if no target is detected (TARGET LED = RED) for
Options: LOW, HIGH, and HOLD (no change)
The minimum time the sensor must continuously fail to detect a target
Values: 0 ms to 5.46 minutes (resolution 5 ms)
Voltage value set by a SYNC Slave sensor with no master SYNC input
Options: LOW, HIGH, and HOLD (no change)
Current loop value set by a SYNC Slave with no master SYNC input (target
Options: LOW, HIGH, and HOLD (no change)
See description under Parameters that Affect Measurements. This parameter is shared by all analog and switch outputs.
(analog shared)
Indicates parameter applies to all current loop and voltage outputs.
Voltage High
Value
Voltage Low
Value
►
►
Instructions
outside the High Value Endpoint side of the analog range)
Either the standard default 10 VDC or a custom value can be entered.
Values: 0.1 to 10 VDC in 50 mV steps
Value must be at least 1.0 volts above the Voltage Low Value.
outside the Low Value Endpoint side of the analog range)
Either the standard default 0 VDC or a custom value can be entered.
Values: 0 VDC to 9.9 VDC in 50 mV steps
Value must be at least 1.0 volts below the Voltage High Value.
10 VDC
0 VDC
Current High
Value
Current Low
Value
Power-Up
Voltage
Power-Up Current
No Target
Voltage
No Target
Current
(and outside the High Value Endpoint side of the analog range)
Either the standard default 20 mA or a custom value can be entered.
Values: 2.2 to 20 mA in 0.1 mA steps
(and outside the Low Value Endpoint side of the analog range)
Either the standard default 4 mA or a custom value can be entered.
Values: 2 mA to 19.9 mA in 0.1 ma steps
completion of the first Measurement Cycle or Measurement Process.
Options: LOW or HIGH analog output value
completion of the first Measurement Cycle or Measurement Process.
Options: LOW or HIGH analog output value
period exceeding the analog No Target Delay.
a time period exceeding the analog No Target Delay.
20 mA
4 mA
LOW
LOW
HOLD
HOLD
No-Target Delay
(shared)
No Sync Voltage
No Sync Current
No Sync Delay
(target indicator = red/green) for a period exceeding No Sync Delay.
indicator = red/green) for a period exceeding No Sync Delay.
before setting the No Target Value.
57
0 ms
HOLD
HOLD
0 ms
U-Series Ultasonic Sensors – Installation Operating Instructions
information available BEFORE contacting OMEGA:
relative to the product.
FOR NON-WARRANTY REPAIRS, consult OMEGA for
available BEFORE contacting OMEGA:
1. Purchase Order number to cover the COST of the
relative to the product.
Instructions
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs. OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages. CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner.
RETURN REQUESTS/INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence. The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit.
FOR WARRANTY RETURNS, please have the following
1. Purchase Order number under which the product was PURCHASED,
2. Model and serial number of the product under warranty, and
3. Repair instructions and/or specific problems
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering. OMEGA is a trademark of OMEGA ENGINEERING, INC. © Copyright 2019 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
current repair charges. Have the following information
repair,
2. Model and serial number of the product, and
3. Repair instructions and/or specific problems
58
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