Data Sheet

Page 7
Web: www.maxbotix.com
PD11500k
MaxBotix
®
Inc.
Copyright 2005 - 2012 MaxBotix Incorporated
Patent 7,679,996
HRXL-MaxSonar
®
- WR/WRC
™
Series
MaxBotix Inc., products are engineered and assembled in the USA.
Sensor minimum distance - No sensor dead zone
(MB7360, MB7369, MB7380, and MB7389)
The 5 meter sensors have a minimum reported distance of 30-cm (11.8 inches). However, the HRXL-MaxSonar-WR will
report targets up to the sensor face (for the WR sensors)
1
and to within 1-mm of the front sensor face (for the WRC
sensors)
1
. For the 5 meter HRXL-MaxSonar-WR sensors, targets closer than 300-mm will typically range as 300-mm.
Notes:
1
refers to section that compares WR to Alternative Packages on page 4
Sensor minimum distance - No sensor dead zone
(MB7363, MB7366, MB7383, and MB7386)
The 10 meter sensors have a minimum reported distance of 50-cm (19.7 inches). However, the HRXL-MaxSonar-WRL
will report targets up to the sensor face. For the 10 meter HRXL-MaxSonar-WRL sensors, targets closer than 500-mm
will typically range as 500-mm.
Sensor operation from 30-cm to 50-cm
Because of acoustic effects in the near field, objects between 30-cm and 50-cm may experience acoustic phase
cancellation of the returning wave, resulting in inaccuracies of up to 5-mm. These effects become less prevalent as the
target distance increases, and have not been observed past 50-cm. For this reason, users that require the highest accuracy
are encouraged to mount the HRXL-MaxSonar-WR farther than 50-cm away from objects.
_______________________________________________________________________________________________________________________________________
Range “0” location
The HRXL-MaxSonar-WR reports the range to distant targets from where the threading and nut meet on the sensor
housing as shown in the diagram below.
In general, the HRXL-MaxSonar-WR will report the range to the leading edge of the closest detectable object. Target
detection has been characterized in the sensor beam patterns.
Range Zero
0.0 mm
Target Face
The range is measured from where the housing meets the threading.
Range Zero
0.0 mm
Target Face
The range is measured from the front of the sensor.
Range Zero
0.0 mm
Target Face
The range is measured from where the housing meets the threading.