FST-1500 is laser distance sensor used to measure the distance 5m to1500m including Air traffic avoidance, overflow height measurement and object height measurement in the Air etc, It is used to replace radar system, Closed circuit control system and Light brake control system etc. it adopts 905nm lasers, small volume and light weight and solid durable.

Main Features and Functions:

Long Distance Measurement: 5m-1500m

Measurement accuracy:±1m

Operation mode:

       Operate by input the command on the PC and also realize continuous measurement in unattended operation.

Output Mode:

       Digital Output: RS232 or RS485 Serial port

          Switch output: 2 ways switch output:User can present multi-value of distance,

The lasers will output switch signal while the distance measured achieve at preset value

Suitable for test in the bad test environment, water proof and dust proof.

       Interior heating and cooling for hostile environment.

Use 4nos of M4 screw to install

 Cable connecting definitions

Red line         ——       +12V

Black line       ——       PGND

Yellow line     ——       RX (PC)

Green line      ——       TX (PC)

Blue line        ——       GND

2 Operating Steps

       2.1 Connect a sensor to the serial port of computer (or other device which have serial ports) and the power port of adapter with special data cable.

              2.2 Trigger Measuring

                     2.2.1 Send the command “O” (ASCII) or “0X4F” (HEX) by computer to turn on the sensor. Then the sensor will turn on the laser and prepare for working, and return the data “FF 00 0A 0A 0A 00” to the serial interface.

                     2.2.2 Send the command “O” (ASCII) or “0X4F” (HEX) again to the sensor to start to measure distance. The sensor will return the measured data like “FF XX XX XX XX XX” to the serial interface and turn off the laser when it finished one time measurement.

                     2.2.3 Send the command “U” (ASCII) or “0X55” (HEX) to turn off the sensor.

              2.3 Continuous Measuring

                     2.3.1 Send the command “O” (ASCII) or “0X4F” (HEX) by computer to turn on the sensor. Then the sensor will turn on the laser and prepare for working, and return the data “FF 00 0A 0A 0A 00” to the serial interface

                     2.3.2 Send the command “C” (ASCII) or “0X43” (HEX) to the sensor. The sensor will begin to measure continuously after 3 seconds when it got the order, and return the data continuously like “FF XX XX XX XX XX”. If the sensor couldn’t get any available data, it will return “FF 00 0A 0A 0A 00” to the serial interface.

                     2.3.3 Send the command “U” (ASCII) or “0X55” (HEX) to turn off the whole sensor (include both of laser unit and measuring unit).

Input and output

       1 Data format for RS232 serial communication

       Baud rate: 9600 bps , Data bits: 8 , Stop bit: 1 , Parity bit: None

       2 RS232 input frame format

There is only one byte in every input frame. The user could send different commands to the sensor for different purpose, the functions of command are shown in the following table.

3,Receiving data format

For Example: Single measurement

1,Starting up command :“O”(0X4F)

2,Receiving data : “ - - - - ”(FF 2D 2D 2D 2D)

3,Measurement command:“O”(0X4F)

4,Receiving data: “  345”(FF 20 20 33 34 35)    // value of distance:345m

Continuous Measurement

1,Starting up command:“O”(0X4F)

2,Receiving data:“ - - - - ”(FF 2D 2D 2D 2D)

3,Continuous measurement command: “C”(0X43)

4,Receiving data: “  345”(FF 20 33 34 35)“ 1100”(FF 31 31 30 30)……..//

5,Value of distance::345m 1100m

6,Stop continuous measurement:“U”(0X55)

7,If object measured is beyond the measurement range or poor quality of the echo, the lasers receiving data:“ - - - - ”(FF 2D 2D 2D 2D)