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K50U Datasheet(PDF) 2 Page - Banner Engineering Corp.

Part # K50U
Description  Sure Cross짰 U-GAGE K50U Ultrasonic Sensor
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Manufacturer  BANNER [Banner Engineering Corp.]
Direct Link  https://www.bannerengineering.com/us/en.html
Logo BANNER - Banner Engineering Corp.

K50U Datasheet(HTML) 2 Page - Banner Engineering Corp.

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D = distance from the sensor to the target
c = speed of sound in air
t = transit time for the ultrasonic pulse
To improve accuracy, an ultrasonic sensor may average the results of several pulses before outputting a new value.
Temperature Effects
The speed of sound is dependent upon the composition, pressure and temperature of the gas in which it is traveling. For most
ultrasonic applications, the composition and pressure of the gas are relatively fixed, while the temperature may fluctuate.
In air, the speed of sound varies with temperature according to the following approximation:
In metric units:
Cm/s = 20 √273 + TC
In English units:
ft/s = 49 √460 + TF
C
Cm/s = speed of sound in meters per second
Cft/s = speed of sound in feet per second
TC = temperature in °C
TF = temperature in °F
Temperature Compensation
Changes in air temperature affect the speed of sound, which in turn affects the total time for the echo measured by the sensor. An
increase in air temperature shifts both sensing window limits closer to the sensor. Conversely, a decrease in air temperature shifts
both limits farther away from the sensor. This shift is approximately 3.5% of the limit distance for a 20° C change in temperature.
The K50U series ultrasonic sensors are temperature compensated, to reduce sensor errors from temperature by about 90%.
Exposure to direct sunlight can affect the sensor’s ability to accurately compensate for changes in temperature.
LED Indicators
Signal LED (red)
Power LED (green)
Power is Off
Off
Sensor is operating normally (power is on, sensor is in Run mode)
Flashing
Serial Communications Transmit/Receive
Intermittent Flashing
Error
Continuous Flashing
Reserved
Off
Self-Diagnostic Error Mode—In the unlikely event of a microprocessor memory error, the Signal LED continuously flashes. If this
occurs, the setup parameters have been lost and the sensor may be corrupt. Contact your Banner representative for further
information.
Sensor Configuration Tool
The Sensor Configuration Tool offers an easy way to manage sensor parameters, retrieve data, and visually show sensor data from
a number of different sensors. The Sensor Configuration Tool software runs on any Windows machine and uses an adapter cable
to connect the sensor to your computer.
Download the most recent version of the Sensor Configuration Tool from Banner Engineering's website:
www.bannerengineering.com/wireless. The Sensor Configuration Tool currently supports the following sensors:
Sensor Type
Model
USB Adapter Cable
Temperature and Humidity
M12FTH3Q and M12FT3Q
Model BWA-HW-006: USB-to-RS-485 adapter cable OR
Model BWA-UCT-900: USB to RS-485 adapter cable
M12FTH4Q and M12FT4Q
Model BWA-USB1WIRE-001: USB-to-RS-232 1-Wire adapter cable
Vibration and Temperature
QM42VT1
Model BWA-USB1WIRE-001: USB-to-RS-232 1-Wire adapter cable
QM42VT2
Model BWA-HW-006: USB-to-RS-485 adapter cable OR
Model BWA-UCT-900: USB to RS-485 adapter cable OR
When updating the firmware, you must use one of the two USB to RS-485 adapter cables plus a
splitter pigtail cable p/n 83265
Sure Cross® U-GAGE K50U Ultrasonic Sensor
2
www.bannerengineering.com - Tel: +1-763-544-3164
P/N 191599 Rev. F


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