SANKOE SKD-300D Laser Distance Sensor User Manual

: June 1, 2024
: SANKOE

Table of Contents

SANKOE SKD-300D Laser Distance Sensor
Product Information
Product Usage Instructions
- Using Instructions
Frequently Asked Questions (FAQ)
Overview
Features
Specifications
Using instructions
- Operating Steps
Input and output
Troubleshooting
Contact us
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

SANKOE SKD-300D Laser Distance Sensor

SANKOE-SKD-300D-Laser-Distance-Sensor-fig-1

Product Information

Specifications

Model: SKD-300D Laser Distance Sensor
Measuring Range: 5m to 300m
Measuring Accuracy: 0.1m
Laser Class: 1
Laser Type: 905nm
Laser Beam Diameter: Approximately…

Product Usage Instructions

Using Instructions

Cable Connecting Definitions
Ensure correct cable connections as per the defined definitions in the user manual.

Operating Steps
Follow these steps for operating the SKD-300D Laser Distance Sensor:

Connection: Properly connect the sensor as instructed.
Single Trigger Measuring Mode: Activatethis mode for single measurement.
Continuous Measuring Mode: Use this mode for continuous measurements.

Input and Output
Understand the data and frame formats for input and output of the sensor.

Data Format: Learn about the data format used by the sensor.
Input Frame Format: Familiarize yourselfwith the input frame format.
Output Frame Format: Understand the output frame format of the sensor.

Troubleshooting
Refer to troubleshooting steps in case of issues:

Factors Affecting Measurement Range: Know the factors that may affect measurement range.
Error Code Display: Understand how error codes are displayed and troubleshoot accordingly.

Frequently Asked Questions (FAQ)

Where can I find more information and support for the SKD-300D Laser Distance Sensor?
You can visit our official e-commerce website at TOP1SENSOR.COM for more information and support.

Thank you for your choice for SKD laser distance sensor by SANKOE.LTD
Please read this user manual carefully before using our products

Overview

SANKOE.LTD is a professional manufacturer from China who provides high performance laser distance sensors and customized service. TOP1SENSOR.COM is our official e-commerce website.
SKD Laser distance sensor is a new kind of un-contact distance measuring equipment. It has many strengths such as high accuracy, long range and fast measuring speed when it’s integrated in mine, wharf, bridge, tunnel, buildings, and other industrial measuring and controlled applications.

SANKOE-SKD-300D-Laser-Distance-Sensor-fig-2

Features

Long detection range (5 to 300m)
High measuring accuracy (typical precision: ±0.3m)
Fast to install Using 4 screws can be quickly and firmly installed
Easy to operating To sight a distant target easily with optical eyepiece Automatic measurement by simple commands from computer
Safety in use Laser class 1, harmless to the human body (avoid direct eye exposure)
Kinds of output type RS232/485/TTL serial data output Two-way switch output based on thresholds set by users
Long-life and high reliability with good protection High waterproof and dustproof performance with aircraft grade aluminum alloy shell
Fully customized service based on 15+ years industry experience

Specifications

Laser Distance Sensor	SKD-300D(RS232)
Measuring Range	5m to 300m①
Measuring accuracy	typ:±0.3m②
Smallest unit displayed	0.1m
Laser class	1
Laser type	905nm

Laser beam diameter approx.

-at 10m distance

-at 50m distance

| ****

6mm 30mm

Measuring mode

-trigger measuring

-continuous measuring

| ****

yes yes

Operation mode| commands by computer
Output mode| RS232 serial digital output
---|---
Power supply| DC 9~24V/1A
Power consumption| ＜3W
Temperature range

-storage

-operating

| ****

-25℃ to 70℃

-10℃ to 50℃

Dimension| 106 x 104 x 51 mm③
Weight| 390g

Use a target plate to increase the measurement range during daylight or if the target has poor reflection properties.
The highest measuring accuracy is ±0.3m when sensor measures in 5 to 300m. If measuring range is further than 300m, the measuring accuracy of sensor is ±1m.
The details of dimension are shown in the following image.

SANKOE-SKD-300D-Laser-Distance-Sensor-fig-3

  * A：Right side view
  * B：Front view
  * C：Top view
  * D：Back view

Using instructions

Cable connecting definitions

Red line —— VCC
Black line —— PGND
Yellow line —— RX(PC)
Green line —— TX(PC)
Blue line —— DGND

Operating Steps

Connection
Connect the sensor to a serial port of computer (or other device which has serial ports), then connect to a power port of adapter with special data cable.

Single Trigger Measuring mode

Send a command “O” (ASCII) or “0X4F” (HEX) by computer to turn on the sensor. Then sensor will emit a laser beam and prepare for working, and return the data “FF 00 0A 0A 0A 00” to the serial interface.
Send a 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 laser beam when it finished one time measurement. For example, if measured distance is 123.4m, computer will receive data like “FF 00 01 02 03 04”.
Send a command “U” (ASCII) or “0X55” (HEX) to turn off the sensor.

Continuous Measuring Mode

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

Input and output

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

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

Output frame format
There is six 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

The mapping table of HEX and BCD codes:

HEX	0X00	0X01	0X02	0X03	0X04	0X05	0X06	0X07	0X08	0X09	0X0A
BCD	0	1	2	3	4	5	6	7	8	9	–

Troubleshooting

Factors affecting the measurement range
Laser distance sensor is a new of un-contact optical measuring equipment. Its measuring range and accuracy will be effect by many external environmental factors. So actual measuring result might be different with typical value which is measured in standard environment. The following factors will effect actual measuring range:

Effect Factors

|

Increase measuring range

|

Decrease measuring range

---|---|---

Surface of target

|

Bright and smooth surface with good reflection, like target plate

|

Deep color and rough surface, like green or blue target surface

Air visibility

|

Clean air

|

Dust, fog, storm and rain, snow

Ambient light

|

Dark environment

|

Target exposure to strong light, like sunlight in midday

Laser emission

|

Laser emission lens and protection glass keep clean and smooth

|

Laser emission lens and protection glass get dirty or scratched

In conclusion, the best measuring result will be happen in a dark environment and with a good reflection target. We strongly suggest to use a target plate when laser distance sensor works in a poor environment.
We also suggest to keep laser emission lens and protection glass clean with a soft cloth before start to using.

Error code display

All error code are either displayed with “FF AA 00 XX XX XX”.
The following errors can be corrected.
Display Notice| Cause| Correction
---|---|---
FF AA 00 02 00 04| Calculation error| Repeat procedure
FF AA 00 02 05 02| Temperature too high| Let device cool down
FF AA 00 02 05 03| Temperature too low| Warm device up

FF AA 00 02 05 05

| Received signal too weak, time for a measurement

too long.

|

Use a target plate

FF AA 00 02 05 06

|

Received signal too strong

| Use target plate(gray

side)

FF AA 00 02 05 07

| Faulty measurement, too