18GM40

Category:Ultrasonic Sensors;Model:18GM40

Main features:
> M18 mounting threaded bushing. The overall length is only 40mm;
> Small blind zone and small sound cone. It`s suitable for fine detection at close
distance;

Basic features:

> 1 x npn or pnp switching output;
> Analog voltage output 0-5/10V or analog current output 4 - 20mA;
> It can change the output by serial port upgrade;
> It can set the detection distance by learning line;
> Temperature compensation;

model

JLUB500-18GM40-E4-V3

JLUB500-18GM40-E5-V3

JLUB500-18GM40-E8-V3

JLUB500-18GM40-E9-V3

JLUB500-18GM40-I-V3

JLUB500-18GM40-U5-V3

JLUB500-18GM40-U10-V3


Setting detection range
Factory setting: Default window mode, normally open, A1=60mm; A2=1000mm
A1: Target distance from near and far, through the A1 point, the switch from open to close.
A2: Target distance from near and far, through the A2 point, the switch from closed to open.
Working mode: A1 and A2 can be learnt individually, and the working mode can be selected by setting the position of A1 point and A2 point, and the working modes are as follows 5 kinds:

Mounting
Due to the directional nature of ultrasonic sensors, the mounting position needs to be taken into account. It is recommended that the mounting position be perpendicular to the object to be measured in order to obtain a better relative accuracy.


485 protocol description
Product working baud rate: 115200
Stop bit: 1
Data bits: 8
Parity: None


1、Command Format


2Specific Command Description

1) Write sensor ID number

Example: Write A5 01 01 02 00 A9, the sensor returns data: A5 02 01 00 00 A8

2) Write A1 value (A1 value less than 600 or more than 1000, A1 will not work, the switching quantity into the single point normally open mode)

Example: Write A1 value 800 (8cm): A5 01 02 20 03 CB.

Sensor return data: A5 01 02 20 03 CB

3) Write A2 value (A2 value less than 600 or more than 1000, A2 will not work, the switching quantity into single point normally closed mode)

Example: Write A2 value 10000 (100cm): A5 01 03 10 27 E0.

Sensor return data: A5 01 03 10 27 E0

Using external temperature compensation, write the external temperature value:

Example: Write a temperature of 18°C, 18*100=1800 converted to hexadecimal: A5 01 04 08 07 B9.Sensor return data: A5 01 04 08 07 B9

Use internal temperature compensation to write the internal temperature:

Example: Write internal temperature value 0°C: A5 01 05 00 00 AB.

Sensor return data: A5 01 05 00 00 AB

6) Read the current measurement data of the sensor

Example: Write A5 01 06 00 00 AC.

The sensor returns the following data


7) Read current sensor ID

Example: Write A5 01 F0 00 00 96, the sensor back to the data: A5 01 F0 00 00 96 (write ID number can be 0 ~ 32, back to the data in the ID for the current sensor ID, read ID can only have a sensor in the 485 network).


Detection range

40~500mm

Adjustment range

40~500mm

Dead zone

0~40mm

resolution

0.17mm

Repeatability

0.15% of Full scale

Absolute Accuracy

1%(built-in temperature compensation)

Switching frequency

20hz

Switching Hysteresis

2mm

Response Time

50ms

Power supply

15~30VDC,10%Vpp

Protection circuit

Anti-reverse connection protection, instant over-voltage protection

No-load Current

≤25mA

Operational current

≤200mA,short circuit protection,reverse polarity protection

Yellow LED

Normally lighting on, targets detected in the A1-A2 range; flashing, targets detected in learning state

Red LED

Normally lighting on, no target detected; flashing, no target detected in learning state


Characteristic
Working Temperature      25℃~+70℃(253~343K)
Storage temperature -40℃~+85℃(233~358K)
Electromagnetic compatibility GB/T17626.2-2006
GB/T17626.4-2008
Protection class IP65
Connection M12 connector
Housing Material Copper nickel plated


Response Characteristics Curve



Output



Mode




Electric Wiring



Dimension



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