Non contact laser distance measurement sensor

CMOS micro laser displacement sensor

product presentation

New high precision optical structure

The new optical system achieves excellent measurement accuracy while reducing the size of the sensor. The built-in mirror optical system provides an excellent measurement experience, maintaining high levels of accuracy even in small devices.

Compact, lightweight exterior design

The aluminum cast shell is used to achieve small size of the body while ensuring the robust and durable sensor structure.

Convenient interface

The OLED display is configured to ensure a clear view in all directions, and the thin film keys are simple and convenient to operate, with more stable protection performance.

Product Introduction

The measurement range from 25mm to 600mm covers a wide range of applications and can meet the needs of different industries and fields.

Product model

Model	Analog + switch quantities		LE-030-A to LE-800-A
	LE-030-A	LE-050-A	LE-100-A	LE-200-A	LE-400-A	LE-800-A
Model	LE-030-485	LE-050-485	LE-100-485	LE-200-485	LE-400-485	LE-800-485
	RS-485 + switch quantity
Benchmark distance	30mm	50mm	100mm	200mm	400mm	800mm
Measuring range	±5mm	±13mm	±35mm	±80mm	±200mm	±350mm
Linear precision	±0.1% F.S. (F.S. = 10mm)		±0.1% F.S. (F.S. = 70mm)	±0.15% F.S. (F.S. = 160mm)	±0.3% F.S. (F.S. = 400mm)	±0.65% F.S. (35mm ~ 400mm) ±1.5% F.S. (400mm ~ 800mm)
Repeat accuracy	1 μm	2 μm	4 μm	10 μm	20 μm	100 μm
Spot definition	Φ50 μm	Φ70 μm	Φ140 μm	Φ290 μm	Central 580 μm	Central 800 μm
Illuminant wavelength	Red semiconductor laser 655nm
Illuminant maximum output	1mW
Laser class (GB/IEC)	Class 2
Sampling period	AUTO / 500μs / 1ms / 2ms / 4ms / 8ms / 16ms			AUTO / 1ms / 2ms / 4ms / 8ms / 16ms / 32ms / 64ms
Temperature characteristics (reference value)	±0.05% F.S. / °C
RS485 communication specifications	Half-duplex
External input functions	Measurement hold / peak hold / peak-to-peak hold / valley hold / average hold / trigger upload / laser switch
Switching output	The collector is open circuit NPN or PNP, maximum 100mA/DC30V, residual voltage 1.8V
Analog current	4-20mA, allowable load resistance below 300Ω
Analog voltage	0-5V, output impedance 100Ω
Supply voltage	DC12-24V ±10% (pulsation P-10% below)
Consumed current	Below 80mA
Guard circuit	Reverse protection, overcurrent protection, short circuit protection
Levels of protection	IP67
Use temperature / humidity	-10~50°C / 35~85%RH (no condensation and ice)
Storage temperature / humidity	-20~60°C / 35~85%RH (no condensation and ice)
Ambient light (illuminance)	Incandescent: below 3000LX
Vibration resistance	10-55Hz double amplitude 1.5mm X, Y, Z direction each 2 hours
Resistance to shock	500m/s² (about 50G) X, Y, Z direction each 3 times
Shell / Material	Shell: Die-cast Aluminum
cable	2m,6-core wire
weight	About 85g (including cable)

Note 1: The data of the standard target (white non-glossy ceramic) measured at the reference distance, with a sampling period of 1ms and an average of 32 times.

Note 2: The data is measured for the standard target object (white non-glossy ceramic).

Note 3: The value at the reference distance. If there is light leakage outside the defined range, and the reflectivity around the detection point is higher than that of the detection point itself, the result may be affected.

Note 4: The laser classification of FDA (CDRH) is based on IEC 60825-1:2014 and implemented in accordance with Laser Notice No.50.

Model analysis

Fundamental Settings

Use [+] and [-] to switch between different items. Use [M] to enter the lower menu, set and confirm, and return to the higher menu.

Product Basic Function Setting

explain ：

After the instruction is completed, return to the main interface and make fine adjustments to the threshold as follows:

• Short press [+] or [-] to enter threshold Check (flashing);
• Long press [+] or [-] to quickly adjust the threshold;
• No operation within 2 seconds, the setting is successful and exits automatically;

Two-point demonstration (set method)

A > 1: Two-point teaching

【M】 >2: One threshold

• At the same time, select data bits according to [+] and [-].
• Short press [+] or [-] to fine-tune the current value
• Press [M] to complete the one-point threshold setting

[M]> 3: Two-point threshold

• At the same time, select the display bit according to [+] and [-]
• Short press [+] or [-] to fine-tune the current value
• Press [M] to complete the two-point threshold setting

Note: After the central teaching is completed, you can fine-tune the threshold by the following operations after returning to the main interface:

• Short press [+] to enter the one-point threshold Check (flashes), long press [+] or [-] to quickly adjust;
• Short press [-] to enter two-point threshold Check (flashing), long press [+] or [-], can be quickly adjusted;
• No operation within 2 seconds, the setting is successful, and automatically exits;

Central demonstration (setting method)

A >1: Central teaching (Two way display)

A 【M】 > 2: Central threshold

• At the same time, select the display bit according to [+] and [-]
• Short press [+] or [-] to fine-tune the current value
• Short press [M], the value flickers, and the central threshold is set

【M】 > 3: Central difference

【M】 > 4: Central difference setting

• At the same time, select the display bit according to [+] and [-]
• Short press [+] or [-] to fine-tune the current value
• Center response (default value) = range * 0.1

Note: After the central teaching is completed, you can fine-tune the threshold by the following operations after returning to the main interface:

• Short press [+] or [-] to enter threshold Check (flashing);
• Long press [+] or [-] to quickly adjust the threshold;
• No operation within 2 seconds, the setting is successful and exits automatically;

Lag phenomenon/output

delay> 1: Lag phenomenon

Mean value = measurement × 0.1% . [M] Set the full tolerance setting value. If the measured value fluctuates due to the need of the object and the output is repeatedly ON/OFF, the lag value can be increased to stabilize the ON/OFF.

t+1/L-】 > 2: Delayed output

Regulation of heat 【M】 (Default) delay of 5 ms Delay 5ms Delay 5ms

Detailed explanation of teaching model

The following three teaching modes switch between normally open and normally closed outputs through the [Output polarity] in the basic Settings. The following are the actions set to [normally open].

Pointers

After teaching at the specified position, output ON in the range between that position and the proximal end of the detection range.

Two-point demonstration

After the two points are designated for teaching, the ON is output in the range between the two points.

Central demonstration

After teaching in the specified position, ON is input when the distance is outside the range of [Center Aberration] at that position. When there is a workpiece on the base position (such as conveyor belt) that needs to be detected, center indication mode is used.

Basic Product Function Setting

Digital output (RS-485)

Switch between different items by using [+] and [-], and press [M] to enter the lower menu to set and confirm, and return to the upper menu,

Analog output (V/A)

Switch between different items by using the [+] and [-] keys. The [M] key is used to enter the lower menu, set and confirm, and return to the upper menu

Other functions

Reset function

Reset settings

In the detection mode, long press [] for more than 2 seconds to execute the zero setting. At this time, the current measurement value is displayed as [0.000]. (The decimal point is different in different models)

Cancel zero reset setting

In detection mode, hold down [·] for more than 4 seconds to cancel the zero setting.

Communication specifications

Parameter	Value / Description
Communication mode	RS-485 half-duplex
Communicating protocol	Modbus RTU
Chinaprotocol	Binary system
Baud rate	9600 bps (recognised)
Check bit	NONE
Data long seat	8bit
Stop bit	1bit

Distance values read

Resolution references

CRC algorithm verification method

Product basic function setting

Command (write/read) data table

Name	FC	Register address (high)	Register address (low bit)	Number of registers	Parametric description	Read instructions	Return
Sampling period	03H / 06H	00H	01H	1	0001 : 500 μs 0002 : 1ms 0003 : 2ms 0004 : 4ms 0005 : 8ms 0006 : 16ms 0007 : AUTO	01030001 D5 CA	0103020003F845
Average time	03H / 06H	02H	01H	1	0000 : 1 0001 : 8 0002 : 16 0003 : 32 0004 : 128 0005 : 512	01030002 000125 CA	01030200023985
N. O. / N. C.	03H / 06H	00H	04H	1	0000 : N. O. 0001 : N. C.	01030004 0001 C5 CB	0103020000 B844
NPN / PNP	03H / 06H	00H	05H	1	0o : P	01030005 0001940B	0103020000 B844
Measure direction	03H / 06H	00H	03H	1	000 : Normal 0001 : Reverse	01030003 0001740A	0103020000 B844
Data format	03H / 06H	00H	3DH	9	A to Z	0103003D 000115 C6	0103020000 B844
External input	03H / 06H	00H	06H	1	000: Off 0001: Data upload 0002: Measure value maintained 003: Bee value maintained 004: Valley holds 0005: Average kept 0006: Peak-to-peak hold 007: Zeroing function 0008: Stop lighting	01030006 0001640B	01030200 00 B844
Over-reading count	03H / 06H	00H	07H	2	32 (0 ~ 10000)	01030007 000275 CA	01030400200000 FB F9
Diagrammatic model	03H / 06H	00H	09H	1	000: One point of instruction 0001: Two-point teaching 0002: Central teaching	01030009 0001540B	0103020000 B844
Make zero adjust	05H	00	02		0xFFF	01050002 FF002D FA
Cancel make zero	05H	00	02		0x0000	01050002 00006C 0A
Initialise	05H	00	03		0x0003	01050003 FF FF 3C 7A
Λ threshold	03H / 06H	00H	0AH	2	Within range (pm)	0103000A 0002 E409	010304AE 61000A 0B 02
2 o'clock threshold	03H / 10H	00H	0CH	2	Within range (μm)	0103000C 00020408	0103047E 63 EC F0000E
centrality threshold	03H / 10H	00H	0EH	2	Within range (μm)	0103000E 0002 A5C8	010304 AE 60000A 5 A C2
centrality accept on assignment	03H / 10H	00H	10H	2	Within the range (μm)	01030010 0002C5 CE	01030486 A00001 1299
hysteresis phenomenon	03H / 10H	00H	12H	2	Within the range (μm)	01030012 0002640E	010304C3500000 C666
Delayed output	03H / 10H	00H	14H	1	000: Turn off 0001 delayed on 0002: Delayed 0003: Single delay	01030014 0001 C40E	0103020000 B844
communication address	03H / 10H	00H	15H	1	1 ∼ 8	01030015 000195 CE	010302000017984
Baud rate	03H / 10H	00H	16H	1	0000 : 9600 0001 : 19200 0002 : 38400 0003 : 57600 0004 : 115200 0005 : 230400 0006 : 315200 0007 : 460800 0008 : 500000 0009 : 625000 000A : 833333 000B : 937500 000C : 1250000	01030016 000165 CE	0103020004 B987
Laser projection	03H / 00H	00H	26H	1	fence	01030026 000165 C1	0103020004 B987
Distance values (relative/absolute)	03H / 00H	00H	3B	2	LE-30/50: 0.0000mm LE-100/200/400: 0.000mm LE-800: 0.00mm	01030026 000165 C1	0103020004 B987

Product wiring diagram

Product dimensions