HRLV-ShortRange® - EZ™ Series
HRLV-ShortRange®- EZ™ Series
High Resolution, Precision, Low Voltage Ultrasonic Range Finder
MB1603, MB1604, MB1613, MB1614, MB1623, MB1624, MB1633, MB1634, MB1643, & MB16445
The HRLV-ShortRange-EZ sensor line is the most cost-effective solution for close range
applications where precision range-finding, low-voltage operation, and low-cost are
needed. This sensor component module allows users of other more costly precision
rangefinders to lower the cost of their systems without sacrificing performance.
The HRLV-ShortRange-EZ sensor line provides high accuracy and high resolution ultrasonic proximity detection
and ranging in air, in a package less than one cubic inch. This sensor line features 1-mm resolution, target-size and
operating-voltage compensation for improved accuracy, superior rejection of outside noise sources, internal speedof-sound temperature compensation and optional external speed-of-sound temperature compensation. This
ultrasonic sensor detects large objects from 1-mm6 to 5-meters, senses range to objects from 2-cm to 5-meters. The
interface output formats are pulse width, analog voltage, and serial digital in RS232. Factory calibration is
standard. 1See Close Range Operation
• Easy to use interface with distance
Precision Range Sensing
• Range-finding at a fraction of the cost of
•
•
•
•
•
other precision rangefinders
Reading-to-reading stability of 1-mm at 1
-meter is typical
Accuracy is factory-matched at 1-meter
to 0.2% providing a typical large target
accuracy of 1% +/-3-mm for most
voltages and uses2
Calibrated acoustic detection zones
allows selection of the part number that
matches a specific application
Compensation for target size variation
and operating voltage range
Standard internal temperature
compensation and optional external
temperature compensation
•
•
•
•
General Characteristics
• Low-cost ultrasonic rangefinder
• Size less than 1 cubic inch with easy
• Object proximity detection from 1-mm to
Pulse width, (1uS/mm)
Analog Voltage, (5mm resolution)
RS232 Serial, (at TTL voltage levels)
TTL Serial
5-meters
• Resolution of 1-mm
• Excellent Mean Time Between Failure
•
•
•
Easy to Use Component
Module
• Gracefully handles other ultrasonic
•
sensors3
• Stable and reliable range readings and
•
mounting
Range Outputs
•
•
•
•
•
• Operating voltage from 2.5V to 5.5V4
provided in a variety of outputs
• Nominal current draw of 2.5mA at 3.3V,
Target size compensation provides
and 3.5mA at 5V
greater consistency and accuracy when
• Low current draw reduces current drain
switching targets
for battery operation
Sensor automatically handles acoustic
•
Fast first reading after power-up
noise2,3
eases battery requirements
Sensor ignores other acoustic noise
sources
Small and easy to mount
Calibrated sensor eliminates most sensor
to sensor variations
Very low power ranger, excellent for
multiple sensors or battery based systems
excellent noise rejection make the sensor
easy to use
(MTBF)
Triggered operation yields a real-time
100mS measurement cycle
Free run operation uses a 2Hz filter, with
100mS measurement and output cycle
Actual operating temperature range from
–40°C to +65°C, Recommended
operating temperature range from -15°C
to +65°C, provided proper frost
prevention is employed 4
Notes:
1
See Close Range Operation
Users are encouraged to evaluate the sensor
performance in their application.
3
See page 6 for multi-sensor operation.
4
Please reference page 5 for minimum
operating voltage verses temperature
information.
5
Please reference page 16 for part number key.
6
Small and/or angled targets may have limited
detection at distances less than 2cm.
2
Close Range Operation
Applications requiring 100% reading-to-reading reliability should not use MaxSonar sensors at a distance closer than
2cm. Although most users find MaxSonar sensors to work reliably from 0 to 2cm for detecting objects in many
applications, MaxBotix® Inc. does not guarantee operational reliability for objects closer than the minimum reported
distance. Because of ultrasonic physics, these sensors are unable to achieve 100% reliability at close distances.
_______________________________________________________________________________________________________________________________________
Warning: Personal Safety Applications
We do not recommend or endorse this product be used as a component in any personal safety applications. This product is
not designed, intended or authorized for such use. These sensors and controls do not include the self-checking redundant
circuitry needed for such use. Such unauthorized use may create a failure of the MaxBotix® Inc. product which may result
in personal injury or death. MaxBotix® Inc. will not be held liable for unauthorized use of this component.
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
Page 1
Web: www.maxbotix.com
PD15029b
Applications & Uses
•
•
•
•
Proximity zone detection
People detection
Robots ranging sensor
Autonomous navigation distance
measuring
• Long range object detection
HRLV-ShortRange® - EZ™ Series
• Automated factory systems
• This product is not recommended as
a device for personal safety
• Designed for protected indoor environments
• Motion detectors
• Limited tank level measurements
• Box dimensions
• Environments with acoustic and electrical noise
• Height monitors
• Auto sizing
Pin Out Description
Pin 1- Temperature Sensor Connection: Leave this pin unconnected if an external temperature sensor is not used. For
best accuracy, this pin is optionally connected to the HR-MaxTemp temperature sensor. Look up the HR-MaxTemp
temperature sensor for additional information.
Pin 2- Pulse Width Output: This pin outputs a pulse width representation of the distance with a scale factor of 1uS per
mm. Output range is 20uS for 20-mm to 5000uS for 5000-mm. Pulse width output is +/- 1% of the serial data sent.
Pin 3- Analog Voltage Output: On power-up the voltage on this pin, Vobserved, is set to 0V. After which, the voltage on
this pin has the voltage corresponding to the latest measured distance. This distance can be calculated with the following
equation: distance = [Vobserved / ((Vcc/1024) * 6)] - 300. (This output voltage is referenced to GND, Pin 7.) The analog
voltage output is typically within ±10-mm of the serial output.
Using a 10bit analog to digital convertor, one can read the analog voltage bits (i.e. 0 to 1023) directly and multiply the
number of bits in the value by 6 and subtract 300 to yield the range in mm. For example, 54 bits corresponds to 24-mm
where (54 * 6) - 300 = 24-mm.
Pin 4- Ranging Start/Stop: This pin is internally pulled high. If this pin is left unconnected or held high, the sensor will
continually measure and output the range data. If held low, the HRLV-ShortRange-EZ will stop ranging. Bring high for
20uS or longer to command a range reading.
Real-time Range Data: When pin 4 is low and then brought high, the sensor will operate in real time and the first reading
output will be the range measured from this first commanded range reading. When the sensor tracks that the RX pin is low
after each range reading, and then the RX pin is brought high, unfiltered real time range information can be obtained as
quickly as every 100mS.
Filtered Range Data: When pin 4 is left high, the sensor will continue to range every 100mS, but the output will pass
through a 2Hz filter, where the sensor will output the range based on recent range information.
Pin 5-Serial Output: By default, the serial output is RS232 format (0 to Vcc) with a 1-mm resolution. The output is an
ASCII capital “R”, followed by four ASCII character digits representing the range in millimeters, followed by a carriage
return (ASCII 13). The maximum distance reported is 5000. The serial output is the most accurate of the range outputs.
Serial data sent is 9600 baud, with 8 data bits, no parity, and one stop bit.
V+ Pin 6 - Positive Power, Vcc: The sensor operates on voltages from 2.5V - 5.5V DC. For best operation, the sensor
requires that the DC power be free from electrical noise. (For installations with known dirty electrical power, a 100uF
capacitor placed at the sensor pins between V+ and GND will typically correct the electrical noise.) Please reference page
5 for minimum operating voltage verses temperature information.
GND Pin 7 – Sensor ground pin: DC return, and circuit common ground.
About Ultrasonic Sensors
Our ultrasonic sensors are in air, non-contact object detection and ranging sensors that detect objects within an area. These
sensors are not affected by the color or other visual characteristics of the detected object. Ultrasonic sensors use high
frequency sound to detect and localize objects in a variety of environments. Ultrasonic sensors measure the time of flight
for sound that has been transmitted to and reflected back from nearby objects. Based upon the time of flight, the sensor
then outputs a range reading.
Auto Calibration
Each time the HRLV-ShortRange-EZ takes a range reading, it calibrates itself. The sensor uses this data to range objects.
If the temperature, humidity, or applied voltage changes during sensor operation; the sensor will continue to function
normally over the rated temperature range while applying compensation for changes caused by temperature and voltage.
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
Page 2
Web: www.maxbotix.com
PD15029b
HRLV-ShortRange® - EZ™ Series
Sensor Operation: Free-Run
When operating in free run mode, most range readings are accurately reported. If the range readings are affected, the
effect is typically less than 5 mm. This allows users to employ real-time ultrasonic distance sensing without the need for
additional supporting circuitry or complicated user software.
Many acoustic noise sources will have little to no affect on the reported range of the HRLV-ShortRange-EZ sensors.
However, users are encouraged to test sensor operation in the operating environment.
Sensor Minimum Distance
The sensor minimum reported distance is 2-cm (0.8 inches). However, the HRLV-ShortRange-EZ will detect targets to
within 1-mm of the front sensor face. Large targets closer than 2-cm will typically range as 20-mm.
Sensor Operation from 2-cm to 50-cm
Because of acoustic phase effects in the near field, objects between 2-cm and 50-cm may experience acoustic phase
cancellation of the returning waveform resulting in inaccuracies of up to 3-mm. These effects become less prevalent as the
target distance increases, and has not been observed past 50-cm. For this reason, industrial users that require the highest
sensor accuracy are encouraged to mount the HRLV-ShortRange-EZ from objects that are farther than 50-cm.
Range “0” Location
The HRLV-ShortRange-EZ reports the range to distant targets starting from the front of the transducer.
Range Zero 0.0-mm
The range is measured from the front of the transducer to the target
Target Face
In general, the HRLV-ShortRange-EZ will report the range to the leading edge of the closest detectable object. Target
detection has been characterized in the sensor beam patterns.
Target Size Compensation
Most low cost ultrasonic rangefinders will report the range to smaller size targets as farther than the actual distance. In
addition, they may also report the range to larger size targets as closer than the actual distance.
The HRLV-ShortRange-EZ sensor line correctly compensates for target size differences. Provided an object is large
enough to be detected, the sensor will report the same distance, typically within 2%, regardless of target size. Smaller
targets can have additional detection noise that may limit this feature. In addition, targets with small or rounded surfaces
may have an apparent distance that is slightly farther, where the distance reported may be a composite of the sensed
object(s). Compensation for target size is applied to all outputs: pulse width, analog voltage, and serial RS232 or TTL.
Selecting a HRLV-ShortRange-EZ
The HRLV-ShortRange-EZ product line offers varied sensitivity to allow you to select the best sensor to meet your needs.
The diagram below shows how each product balances sensitivity and noise tolerance. This does not affect the maximum
range, pin outputs, or other operations of the sensor. To view how each sensor will function to different sized targets
reference the HRLV-ShortRange-EZ-Beam Patterns.
Part Number
Serial
Interface
People
Detection
Wide
Beam
High
Sensitivity
MB1603
RS232
Yes
Yes
Yes
MB1613
RS232
Yes
Yes
Yes
MB1623
RS232
Yes
MB1633
RS232
Yes
MB1643
RS232
MB1604
TTL
Yes
Yes
Yes
MB1614
TTL
Yes
Yes
Yes
MB1624
TTL
Yes
MB1634
TTL
Yes
MB1644
TTL
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
Best
Balance
Large
Targets
Narrow
Beam
Noise
Tolerance
5 Meter
Range
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
MaxBotix Inc., products are engineered and assembled in the USA
Page 3
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PD15029b
Supply Voltage Droop and Charge Compensation
HRLV-ShortRange® - EZ™ Series
During power up, the HRLV-ShortRange-EZ sensor line will calibrate itself for changes in supply voltage. Additionally,
the sensor will compensate if the supplied voltage gradually changes.
If the voltage applied to the sensor changes faster than 0.5V per second, it is best to remove and reapply power.
The sensor requires noise free power for best operation. If the sensor is used with noise on the supplied power, the
readings may be affected. Typically adding a 100uF capacitor at the sensor between the V+ and GND pins will correct
most power related electrical noise issues.
_______________________________________________________________________________________________________________________________________
Mechanical Dimensions
_______________________________________________________________________________________________________________________________________
A
1.498”
38.05-mm
D
0.104”
2.64-mm
G
0.700”
17.78-mm
K
0.125 dia.
3.18-mm
K
0.125 dia.
3.18-mm
O
0.580”
13.97-mm
B
0.875”
22.23-mm
E
0.670”
17.02-mm
H
0.510”
12.95-mm
L
0.040” dia.
1.02-mm
L
0.040” dia.
1.02-mm
P
0.700”
17.78-mm
C
0.102”
2.59-mm
F
1.210”
30.73-mm
I
0.069”
1.75-mm
M
0.053”
1.35-mm
M
0.053”
1.35-mm
Q
0.343”
8.71-mm
J
0.169”
4.29-mm
N
0.625”
15.88-mm
N
0.625”
15.88-mm
R
0.427”
10.85-mm
Weight 8 Grams
Temperature Compensation
On Board - Internal Temperature Compensation
The speed of sound in air increases about 0.6 meters per second, per degree centigrade. Because of this, each HRLVShortRange-EZ is equipped with an internal temperature sensor which allows the sensor to apply a compensation for
speed of sound changes.
The self heating (15mW at 5V, or 8mW at 3.3V) will change the temperature of the sensor by about 1 degree C. The
amount of self heating is dependent upon user mounting.
Most importantly, the actual air temperature of the path between the sensor and the target may not match the temperature
measured at the sensor electronics. Sensors mounted in vertical applications, or applications where the environmental
temperature gradient is severe, may experience a large temperature measurement error which will affect the sensor
accuracy. For example, buildings with a height of 2-meters can have floor to ceiling temperature variations of 5°C or
more. Because of these temperature affects, users desiring the highest accuracy output are encouraged to use a properly
mounted external temperature sensor or to manually account for this measurement error.
HR-MaxTemp® External Temperature Sensor
Although the HRLV-ShortRange-EZ has an internal temperature sensor; for best accuracy users are encouraged to use the
optional external temperature sensor. On power-up the HRLV-ShortRange-EZ will automatically detect an attached
HR-MaxTemp temperature sensor and begin to apply temperature compensation using the external temperature sensor.
The external temperature sensor allows for the most accurate temperature compensation by eliminating sensor self-heating
from the sensor electronics; and by allowing the user to place the temperature sensor closer to the center of the acoustic
ranging path.
For best results connect the temperature sensor midway between the HRLV-ShortRange-EZ and the expected target.
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
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PD15029b
Voltage vs Temperature
HRLV-ShortRange® - EZ™ Series
The graph below shows minimum operating voltage of the sensor verses temperature.
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
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PD15029b
HRLV-ShortRange® - EZ™ Series
Operating Modes
Multiple Sensor Operation
Multiple HRLV-ShortRange-EZ sensors can be used simultaneously in the same environment generally with little to no
interference (cross-talk). Even so, some cross-talk may still occur for users wishing to use a large number of sensors in
the same environment. This interference is rare and can be up to +/- 1 cm of the target’s distance. Because of this, sensor
to sensor interference must be accounted for. To avoid interference between sensors, chaining can be used to prevent
cross-talk between sensors. This will be necessary when using 3+ sensors depending on mounting and environment.
The recommended chaining method is AN Output Commanded Loop. The first sensor will range, then trigger the next
sensor to range and so on for all the sensors in the array. Once the last sensor has ranged, the array stops until the first
sensor is triggered to range again. Below is a diagram on how to set this up.
Pull RX pin high on the
first sensor for at least
20uS to (96mS),and the
rest of the sensors will
read the range in
sequence.
Wire AN pin
to AD input
Wire AN pin
to AD input
Wire AN pin
to AD input
Another recommended chaining method is AN Output Constantly Looping. The first sensor will range, then trigger the
next sensor to range and so on for all the sensors in the array. Once the last sensor has ranged, it will trigger the first
sensor in the array to range again and will continue this loop indefinitely. Below is a diagram on how to set this up.
Pull RX pin high on the
first sensor for at least
20uS to 96mS), Then the
micro controller will have
to return it’s pin to a high
impedance state so the
TX output from the last
sensor will make it’s way
to the RX of the first
sensor.
MaxBotix® Inc.
1K
Wire AN pin
to AD input
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
Wire AN pin
to AD input
MaxBotix Inc., products are engineered and assembled in the USA
Wire AN pin
to AD input
Page 6
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PD15029b
HRLV-ShortRange® - EZ™ Series
Operating Modes Cont.
Independent Sensor Operation
The HRLV-ShortRange-EZ sensors have the capability to operate independently when the user desires. When using the
HRLV-ShortRange-EZ sensors in single or independent sensor operation, it is easiest to allow the sensor to free-run.
Free-run is the default mode of operation for all of the MaxBotix Inc., sensors. The HRLV-ShortRange-EZ sensors have
three separate outputs that update the range data simultaneously: Analog Voltage, Pulse Width, and Serial Data. Below
are diagrams on how to connect the sensor for each of the three outputs when operating in a single or independent sensor
operating environment.
Ground or
Circuit
Common
Ground or
Circuit
Common
Ground or
Circuit
Common
Supply Voltage of 2.5 to
5.5 volts
Supply Voltage of 2.5 to
5.5 volts
Supply Voltage of 2.5 to
5.5 volts
Wire AN pin
to use with an
ADC
Wire PW pin
to use the PW
output
Wire Serial
pin to use
R232 or TTL
output
_______________________________________________________________________________________________________________________________________
Operations and Timing
~60 ms
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MaxBotix Inc., products are engineered and assembled in the USA
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PD15029b
Operations and Timing Continued
HRLV-ShortRange® - EZ™ Series
Real-Time Operation - Triggered
Real-time or triggered operation allows users to take advantage of a few functions unavailable during free run mode. By
operating in triggered mode, a maximum refresh rate of 10Hz can be achieved. This can be valuable for instance, as
triggered operation allows users to range targets moving away from or closer to the sensor faster than 240mm/s.
Users can enter and remain in the Real-time or Triggered Operation by making sure that after each range cycle, the
voltage level on Pin 4 is set low. After the sensor has completed the last reading, then the voltage on Pin 4 is brought
high. This starts a brand new range cycle and the HRLV-ShortRange-EZ will output the most recent range data without
filtering. Please reference the Real-time Triggered Operation timing diagram for full implementation details.
Readings during triggered operation are less accurate than the 2Hz filtered readings by about +/- 5-mm. Also, because the
range readings are not filtered, noise tolerance can be greatly reduced. Take care to make sure that only one sensor is
sampling range at a time.
MaxBotix® Inc.
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Patent 7,679,996
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PD15029b
Operations and Timing Continued
HRLV-ShortRange® - EZ™ Series
Sensor Operation - Free-Run
When operating in free run mode, the HRLV-ShortRange-EZ sensors are designed to be used in a variety of indoor
environments. Many acoustic noise sources will have little to no affect on the reported range of the HRLV-ShortRangeEZ sensors.
Most range readings are accurately reported. If the range readings are affected, the effect is typically less than 5-mm. This
allows users to employ real-time ultrasonic distance sensing without the need for additional supporting circuitry or
complicated user software.
Filtered Operation - Free-Run
The HRLV-ShortRange-EZ uses an internal 2Hz bandwidth filter to process range data; which reports the latest range
every 100mS or 10Hz. This improves the sensor’s performance for accuracy, noise rejection, and reading to reading
stability. The filtering in the free-run operation also permits additional acoustic and electrical noise tolerance.
Output): MB16X3
Output): MB16X4
MaxBotix® Inc.
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MaxBotix Inc., products are engineered and assembled in the USA
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PD15029b
HRLV-ShortRange® - EZ™ Series
_______________________________________________________________________________________________________________________________________
®
™
HRLV-ShortRange -EZ Beam Patterns
Background Information Regarding our Beam Patterns
Each HRLV-ShortRange-EZ sensor has a calibrated beam pattern. Each sensor is matched to provide
the approximate detection pattern shown in this datasheet. This allows end users to select the part
number that matches their given sensing application. Each part number has a consistent field of
detection so additional units of the same part number will have similar beam patterns. The beam
plots are provided to help identify an estimated detection zone for an application based on the
acoustic properties of a target versus the plotted beam patterns.
People Sensing:
For users that
desire to detect
people, the
detection area to
the 1-inch
diameter dowel, in
Each beam pattern is a 2D representation of the detection area of the sensor. The beam pattern is
general, represents
actually shaped like a 3D cone (having the same detection pattern both vertically and horizontally).
the area that the
Detection patterns for dowels are used to show the beam pattern of each sensor. Dowels are long
cylindered targets of a given diameter. The dowels provide consistent target detection characteristics sensor will
for a given size target which allows easy comparison of one MaxSonar sensor to another MaxSonar reliably detect
people.
sensor.
For each part number, the four patterns (A, B, C, and D) represent the detection zone for a given
target size. Each beam pattern shown is determined by the sensor’s part number and target size.
The actual beam angle changes over the full range. Use the beam pattern for a specific target at any given distance to
calculate the beam angle for that target at the specific distance. Generally, smaller targets are detected over a narrower
beam angle and a shorter distance. Larger targets are detected over a wider beam angle and a longer range.
Beam Pattern Target Shapes
A 6.1-mm (0.25-inch) diameter dowel 4ft length
B 2.54-cm (1-inch) diameter dowel 4ft length
C 8.89-cm (3.5-inch) diameter dowel 4ft length
D 11-inch wide board 4ft in length moved left to right with
the board parallel to the front sensor face. This shows
the sensor’s range capability.
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PD15029b
HRLV-ShortRange® - EZ™ Series
MB1603 & MB1604 HRLV-ShortRange-EZ0 Beam Pattern and Uses
The HRLV-ShortRange-EZ0 is the highest sensitivity and widest beam sensor of the HRLV-ShortRange-EZ sensor series. The wide beam makes this sensor ideal for a variety of applications including people detection, autonomous navigation, and wide beam applications.
Coming Soon
MB1603 & MB1604
Features and Benefits
MB1603 & MB1604 Applications and Uses
• Factory calibrated wide beam
width
• All range outputs are active
simultaneously
• High acoustic sensitivity
• Detects small targets to longer
distances
• Widest beam width for the HRLV
-ShortRange-EZ sensors
•
•
•
•
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
People detection
Small target detection
High sensitivity applications
Obstacle avoidance
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PD15029b
HRLV-ShortRange® - EZ™ Series
MB1613 & 1614 HRLV-ShortRange-EZ1 Beam Pattern and Uses
The HRLV-ShortRange-EZ1 is an indoor ultrasonic sensor and is a quality, low-cost starting place for a customer not
sure of which HRLV-ShortRange-EZ sensor to use. It balances the detection of people and other objects with a narrow
beam width.
Coming Soon
MB1613 & MB1614
Features and Benefits
MB1613 & MB1614 Applications and Uses
• Good balance between people
detection and beam pattern width
• Well balanced acoustic sensitivity
• Ignores some small targets
• Detects most targets to long
distances
• Wider, balanced beam width
• Sensitive long narrow beam
• Our most recommended HRLVShortRange-EZ Sensor
• People Detection
• Well balanced detection
• Autonomous Navigation
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PD15029b
HRLV-ShortRange® - EZ™ Series
MB1623 & 1624 HRLV-ShortRange-EZ2 Beam Pattern and Uses
The HRLV-ShortRange-EZ2 is an effective compromise between sensitivity and side object rejection. The HRLVShortRange-EZ2 is an excellent choice for applications that requires slightly less side object detection and sensitivity
than the HRLV-ShortRange-EZ1.
Coming Soon
MB1623 & MB1624
Features and Benefits
MB1623 & MB1624 Applications and Uses
• Good balance between high
sensitivity and noise tolerance
• Well balanced acoustic sensitivity
• Ignores some small targets
• Detects most targets to long
distances
• Balanced Beam Width
• Best compromise for beam width,
sensitivity and sensor range
• Well balanced detection
• Applications where the HRLVShortRange-EZ1 is too wide
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PD15029b
HRLV-ShortRange® - EZ™ Series
MB1633 & 1634 HRLV-ShortRange-EZ3 Beam Pattern and Uses
The HRLV-ShortRange-EZ3 is a sensor with a narrow beam and good side object rejection. The HRLV-ShortRangeEZ3 has slightly wider beam width than the HRLV-ShortRange-EZ4 which makes it a good choice for when the HRLVShortRange-EZ4 does not have enough sensitivity for the application.
Coming Soon
MB1633 & MB1634
Features and Benefits
MB1633 & MB1634
Applications and Uses
• More sensitive then the HRLVShortRange-EZ4
• More noise tolerant acoustic
sensitivity
• Ignores some small targets and
medium targets
• Detects most targets to long
distances
• Narrow Beam Width
• Large target detection
• Short range medium target
detection
• Applications requiring high noise
tolerance
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PD15029b
HRLV-ShortRange® - EZ™ Series
MB1643 & 1644 HRLV-ShortRange-EZ4 Beam Pattern and Uses
The HRLV-ShortRange-EZ4 is the narrowest beam width sensor which is also the least sensitive to side objects offered
in the HRLV-ShortRange-EZ sensor line. The HRLV-ShortRange-EZ4 is an excellent choice when only larger objects
need to be detected.
Coming Soon
MB1643 & MB1644
Features and Benefits
MB1643 & MB1644
Applications and Uses
• Best noise tolerance of the HRLV
-ShortRange-EZ sensors
• Most noise tolerant acoustic
sensitivity
• Ignores some small targets and
medium targets
• Detects most large targets to long
distances
• Narrow beam width
• Large target detection
• Applications requiring high noise
tolerance
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
Page 15
Web: www.maxbotix.com
PD15029b
HRLV-ShortRange® - EZ™ Series
Part Numbers
All part numbers are a combination of a six-character base followed by a dash and a three-digit product code.
Please review the following table for more information on the three-digit product code.
M
B
1
6
X
3
-
Base
0
0
0
Housing
Options
Wire
0
Not Applicable
0
No Options (Bagged)
0
No Wire
1
3/4” NPS WR
1
F-Option
1
Wire Attached
2
3/4” NPS WRC
2
P-Option
3
Ultra Compact
3
F-Option and P-Option
4
Ultra Compact Flush Mount
4
No Options (Trayed)
5
1” NPS
5
TTL (Bagged)
6
1” BSPP
6
TTL (Trayed)
7
30MM 1.5
8
Extended Horn
The following table displays all of the active and valid part numbers for this product.
Active Part Numbers for
MB1603, MB1604, MB1613, MB1614, MB1623, MB1624,
MB1633, MB1634, MB1643 and MB1644
MaxBotix® Inc.
MB1603-000
MB1613-000
MB1623-000
MB1633-000
MB1643-000
MB1603-040
MB1613-040
MB1623-040
MB1633-040
MB1643-040
MB1604-050
MB1614-050
MB1624-050
MB1634-050
MB1644-050
MB1604-060
MB1614-060
MB1624-060
MB1634-060
MB1644-060
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
Page 16
Web: www.maxbotix.com
PD15029b
HRLV-ShortRange® - EZ™ Series
After reviewing this datasheet, do you have any more questions?
We offer Technical Support on all of our products even if you purchased them through one of our many vendors
worldwide.
You can fill out a Technical Support form for assistance on a sensor here --> Technical Support
Not sure which sensor you need for your application?
We offer Sensor Selection Assistance, click the link here to fill out a form for support --> Sensor Selection Help
Looking for tutorials to help you get started?
Frequently Asked Questions about Our Sensors
We receive many questions about our products and services. This resource offers answers to common inquiries
we receive about our product lines and their application.
Fully Calibrated Beam Patterns
All of our sensors are factory calibrated to provide consistent beam patterns, detection zones, to fit into a wide
variety of applications. In our product lines, each model number comes with a different beam pattern that reflects
the sensitivity and the detection zone of how it sees a target. Additionally, we strive to maintain consistency between our finished products, and you will see little to no deviation between sensors of the same model. This allows you to have confidence in your final application when using multiple sensors.
Understanding Range Readings
The success of an application may hinge upon knowing the exact location of a target. However, a sensor may
report one meter even if the target is not exactly one meter away from the sensor. Sensor specifications, such as
resolution, precision, and accuracy, help you to understand sensor performance.
How to Use Multiple Ultrasonic Sensors
This guide covers three ways to run your sensors in a Multiple Sensor environment and issues you may face.
Contact us now with any questions at sales@maxbotix.com or call +1-218-454-0766.
Please call during our preferred business hours of 8:00 am – 4:30 pm EST on Monday through Thursday and 8:00 am –
2:00 pm EST on Friday, or you may leave us a voicemail anytime.
MaxBotix® Inc.
Copyright 2005 - 2021 MaxBotix Incorporated
Patent 7,679,996
MaxBotix Inc., products are engineered and assembled in the USA
Page 17
Web: www.maxbotix.com
PD15029b