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Help Center150m Laser Distance Sensor for Length Measurement
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Laser Distance Sensor |
FST-150D |
FST-150A |
FST-150K |
Measuring Range |
0.15m to 150m* |
0.15m to 150m* |
0.15m to 150m* |
Measurement rate ( Up to ) |
5Hz |
||
Measuring accuracy |
typ:±1mm** |
typ:±1mm** |
typ:±1mm** |
Smallest unit displayed |
1mm |
N/A |
N/A |
Laser class |
2 |
2 |
2 |
Laser type |
635nm,<1mW |
635nm,<1mW |
635nm,<1mW |
|
Laser beam diameter approx. -at 10m distance -at 50m distance |
6mm 30mm |
6mm 30mm |
6mm 30mm |
|
Measuring mode -trigger measuring -continuous measuring |
yes yes |
yes yes |
yes yes |
Measurement time |
20-100ms |
||
Operation mode |
commands by computer |
commands by computer |
commands by computer |
Output mode |
Digital output: RS232 serial output |
Analog output: 4-20mA current output |
Switch output: 2 ways switch output |
Power supply |
DC 5V/1A |
DC 24V/1A |
DC 5V/1A |
Power consumption |
<3W |
<3W |
<3W |
Storage temperature |
-25℃ to 70℃ |
-25℃ to 70℃ |
-25℃ to 70℃ |
Operating temperature |
0℃ to 40℃ |
0℃ to 40℃ |
0℃ to 40℃ |
Dimension |
136 x 71 x 45 mm |
136 x 71 x 45 mm |
136 x 71 x 45 mm |
Housing material |
aluminium alloy |
||
Protection class |
IP67 |
||
Safety class |
II |
||
Certifications |
CE,FDA |
||
Standards applied |
IEC 60947-5-2 |
||
Weight |
290g |
290g |
290g |
Using instructions
1 Cable connecting definitions
Red line —— +5V
Black line —— PGND
Yellow line —— T/R-
Green line —— T/R+
Blue line —— DGND
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.
HEX |
0X4F |
0X43 |
0X55 |
ASCII(Capital letter) |
O |
C |
U |
Functions of command |
Power On & Trigger Measuring |
Continuous Measuring |
Power Off |
3 RS232 output frame format
There is 6 bytes in every output frame, the frame header is 0XFF, MSB is A, LSB is E. Their orders are shown in this table here.
0XFF |
A |
B |
C |
D |
E |
HEX |
0x30 |
0x31 |
0x32 |
0x33 |
0x34 |
0x35 |
0x36 |
0x37 |
0x38 |
0x39 |
0x2d |
0x20 |
0x00 |
0X45 |
ASCII |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
- |
space |
|
E |
The mapping table of HEX and ASCII codes:
Display Notices
All display notices are either displayed with “E XXX”. The following errors can be corrected.
Display Notice |
Cause |
Correction |
E 204 |
Calculation error |
Repeat procedure |
E 252 |
Temperature too high |
Let device cool down |
E 253 |
Temperature too low |
Warm device up |
E 255 |
Received signal too weak, time for a measurement too long. |
Use a target plate |
E 256 |
Received signal too strong |
Use target plate(gray side) |
E 257 |
Faulty measurement, too much background light |
Use target plate(brown side) |
E 258 |
Outside of the range of measurement |
Select measurement distance within the range of measurement |
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