KUS550 Series Ultrasonic Water Level Sensor / Ultrasonic Distance Sensor

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Ultrasonic proximity sensors (Also called Ultrasonic level distance sensors) have some advantages over light sensors. Not only are they lower in cost, they generally have longer measurement ranges and IP68 high protection rating.

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Xi'an Kacise Optronics Tech Co., Ltd.

Shaanxi, China

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Ultrasonic water level distance sensor Dimension
The unit in the diagram is mm.
Description of Ultrasonic Level Sensor Functions
A just I ng the analog output.
The analog output can be programmed as the user want. Such as working at switch output or working at liner output all the parameters can be set by the RS485 interface.
There are 8 types of output functions that can be programmed.
All the setting routines are as follows,
step 1 set one pointed distance by the RS485,
and step 2 set another pointed distance by the RS485.
Step3 set the output type liner or switch and set the related output options
Step 4 reboot the sensor.

Window mode normally opens and liner mode positive slope output function.
Window mode is normally closed and liner mode negative slope output function.
Single switching point, normally-open function.
Single switching point, normally-closed function.
5. Single switch point with hysteresis gap normally-open function.
6. Single switch point with hysteresis gap normally-closed function.
7. Detection of object presence-normal open function.
8. Detection of object presence-closed open function.

Switching point, Setting distance only after powering on. The internal clock can assure can’t be changed after 5 minutes after powering on. If want to change the switching point, the user can only set the request distance after power restart.
For the RS485 Ultrasonic Sensor output type.
There are 2 kinds of working styles, One is for auto-measure, the sensor will measure the distance or level repeatedly, and the measurement period can be set by the UART. The measurement result can be fetched every time. The other style is the power save mode when the sensor is sleeping until the sensor received the inquiry command with pre-code. The communication protocol is Modus-RTU.
For example, the measurement result can be read by accessing the register 0x101 by Modbus protocol.
For more information please contact us for the software engineering guide.
Window mode normally opens and liner mode positive slope output function program routine diagram.
Installation conditions
If the sensor is installed in an environment temperature fall below 0℃, It should do well on the protective measures. In the case of direct mounting of the sensor in a through the hole using the steel nuts, it has to be fixed at the middle of the housing thread.
Ordering information

K US	Model	Output_ _	Max range	Description
	550
	Customized
		SW	Switch Output
		mA	3-wire 4-20mA output
		10V	Output is Vout 0-10V
		5V	Output is Vout 0-5V
		3V	Output is Vout 0-3V
		RS485	Output is RS485
		TTL	UART TTL output
			XX m	XX m is the maximum range that can be detected The default is 2.5m
KUS	550	RS485	2m

                                                            Model
                                                            KUS550 Ultrasonic Level Distance Sensor
                                                        
                                                            Ranging resolution
                                                            0.1mm
                                                        
                                                            Measuring range
                                                            0.25m~3m (5m customizable) KUS550A 0.15m-0.6m (1m customizable) KUS550B;  Blind spot	The dead zone of KUS550A is 0 … 250 mm (within 250mm is unstable working zone, it is not recommended to work in this range); the dead zone of KUS550B is 0-150mm;
                                                        
                                                            Supply voltage
                                                            3.3 … 30 VDC, ripple 10 %SS
                                                        
                                                            Working current
                                                            ≤ 45 mA (fastest measurement speed), typical power consumption ≤ 10 mA;
                                                        
                                                            Output signal
                                                            0-10V. 0-3V 0-5V /4-20mA/NPN/PNP/RS485 Analog output.
                                                        
                                                            Measurement accuracy
                                                            ≤1%FS
                                                        
                                                            Temperature compensation
                                                            Yes
                                                        
                                                            working temperature
                                                            -40…85℃(233…358K)
                                                        
                                                            Storage temperature
                                                            -40…85℃(233…358K)
                                                        
                                                            Electrical connection
                                                            5-core cable (analog output), 6-core cable (switch output);
                                                        
                                                            Protection class
                                                            IP67 shell material	PVC/PVDF/PTFE/ABS