High quality Ultrasonic Water Level Sensor-KUS630 and KUS3100

KUS630 Series Ultrasonic Water Level Sensor


  • High sensitivity
  • Fully sealed
  • IP68 protection class
  • Corrosion-resistant housing, suitable for corrosive media and applications
  1. Dimensions

Unit in the diagram is mm

Type B

Type C

  1. Electrical connections and signal definitions
Line orderColourDefinition
1RedPower is positive
2Blackpower return ground
3YellowAnalog output, voltage output, current output switch output
4BlueRS485 A  or uart TXD
5GreenRS485 B- or uart RXD
Cable colorLine orderDescribeRemark
red1powered by3.3V-30V wide voltage input
yellow3Switch outputSwitch terminal, load capacity 1A 60V, supports up to two switch outputs with independent logic, the two terminals are the two contacts of the switch, do not distinguish between positive and negative poles, and can be connected at will.
White4Switch output

4.Parameter description of Ultrasonic water level sensor

Measuring range0.6m… 15mOr 1.2m….30mOr 1.8m….50m
Blind spot0 … 0.6m/1.2m/1.8m(Unstable working area is within 0.6m, it is not recommended to work in this range); the minimum blind area version of 0.3m can be achieved, which needs to be customized.
Supply voltage3.3 … 24 V DC , ripple 10 %SS
Working current≤ 45 mA (fastest measurement speed)Low-power version, sleep power consumption is less than 0.3mA, sending power consumption is 20mA (less than 2ms), and receiving power consumption is not more than 8mA (less than 150ms)
Output signal1:Programmable analog output 0-10V.2:RS485 output.3:Uart serial output4:4-20mA output5:Switch output
Measurement accuracy≤1 %
Temperature compensationyes

working conditions of Ultrasonic Water Level Sensor

Working temperature-25…70℃(248…343K)
Storage temperature-40…85℃(233…358K)

other instructions of Ultrasonic Water Level Sensor

Electrical connection5-core cable (analog output), 6-core cable (switch output);
Protection classIP68
Shell materialPVC /PVDF/PTFE/ABS
  1. Ultrasonic Water Level Sensor function analog

The analog output can be set through RS485, and the ultrasonic water level sensor can work in 8 modes. The specific reference is as follows:

Step 1: Connect to the host computer through serial port debugging assistant or modus debugging assistant.

Step 2, set a near point reference distance point.

Step 3, Set a far point reference point

Step 4, set the output voltage or current of the near-point reference point.

Step 5, set the output voltage or current of the far point reference point.

Step 6, set the analog output to switch characteristic selection.

Step 7, set the analog output as linear output or switch output option.

Step 8, reset the sensor to make the new parameters take effect.

8 working modes of the KUS630 ultrasonic water level sensor.

1: Open window mode by default

2: Windowed mode is turned off by default

3: Single-point mode is turned on by default

4: Single-point mode is turned off by default

5: Single-point hysteresis mode is turned on by default

6: The single-point hysteresis mode is turned off by default

7: The presence or absence of detection mode is turned on by default

8: The presence or absence of detection mode is turned off by default

485 output data

485 output data is in MODBUS-RTU format. Refer to the software instruction manual for details.

6.Serial port setting output form example

  1. Ordering Information
 630AProduct series model and shape, the default delivery is Type A, support customization
 0-10VAnalog 0-10V output
0-5VAnalog 0-5V output
0-3VAnalog 0-3V output
4-20mAAnalog 4-20mA output
SWSwitch output
UartUart serial output MODBUS RTU protocol
RS485RS485 output  MODBUS RTU protocol
 XXX mmXXX mmmeans the maximum measurement distance(default1000mm)
KUS630 Series Ultrasonic water Level sensor

Kacise KUS3100 series ultrasonic proximity sensor, your right choice!

ultrasonic proximity sensor

1. Dimensions

Unit in the diagram is mm.

KUS3000 series ultrasonic proximity sensor

2. Electronic interface and signals definition

table data of ultrasonic proximity sensor

3. Description of ultrasonic proximity sensor

The switch output type and analog output type of ultrasonic proximity sensor can be programed as the user want.
There are 8 types of output functions can be programed.
All the teach routine as follows,
step 1 teach one point with the related teach in condition (High level voltage or GND). step 2 choose a different distance (not the same with step1) point and a different teach in condition (not same with the step1). The program routine must be finished during the blue led flashing; the default value will be efficient if the not.

The ultrasonic proximity sensor features a switch output with two teachable switching points. These are set by applying the supply voltage – UB or + UB to the TEACH-IN input. The supply voltage must be applied to the TEACH-IN input for at least 1 s. LEDs indicate whether the ultrasonic proximity sensor has recognized the target during the TEACH-IN procedure. Switching point A1 is taught with – UB, A2 with +UB. Five different output functions can be set.
1. Window mode normally-open and liner mode positive slope output function.
2. Window mode normally-closed and liner mode negative slope output function.
3. Single switching point, normally-open function.
4. 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 power on. The internal clock can assure can’t be changed after 5 minutes after power on. If want to change the switching point, the user can only set the request distance after power restart.

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