Underwater Submarine Ultrasonic Sensor Module Probe for Distance Measurement Obstacle Avoidance IP68 UART/RS485 Range 600cm

UART Ctrl. 5-800cm

€76,95

Underwater Submarine Ultrasonic Sensor Module Probe for Distance Measurement Obstacle Avoidance IP68 UART/RS485 Range 600cm

€76,95

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Color UART Ctrl. 5-800cm UART Ctrl - USB Tool RS485 - USB Tool RS485 Modbus 5-800cm

SPECIFICATIONS

Battery Included: no

Brand Name: Gauselink

DIY Supplies: Electrical

High-concerned chemical: none

Model Number: GL04

Net Weight: 40g

Origin: Mainland China

Semi-finishedproduct: Yes

Type: Other

1. Product Parameters

- Product Name: Submarine Underwater Ultrasonic Sensor Module
- Model, Range and Output Type:
> GL081MT, 5 ~ 800cm, UART Controlled
> GL081M4, 5 ~ 800cm, RS485

- Baud Rate: Max. 115200 bits/second (Adjustable)
- Protection Level of Housing: IP68 (To work underwater)
- Max. depth underwater: 5 meters
- Color of Housing: Grey
- Working Media: Clean Water
- Ambient Temperature: -15°C ~ 55°C

Refer to table below for more parameters:
① Measurement Range
② Blind Zone
③ Output Type
④ Output Response Time
⑤ Working Voltage
⑥ Standby Current
⑦ Average Working Current
⑧ Accuracy
⑨ Detection Angle

Remarks:
(a) Sensor tested at 30cm below static water surface. Water temperature 20°C. No water flow.
Object is flat and facing the sensor.
(b) Tested at Baud Rate 115200bps. Real-time value read.
(c) Tested at voltage 5V DC, cycle time 100ms.
(d) The same conditions with (a), except that the object is stainless steel tube ø4.2×100cm placed at 0.5m ahead. Angle grade is default Grade 4.

2. Attractive Features

2.1 High Measurement Accuracy
The sensor module is built in intelligent algorithm that ensures the high accuracy.

2.2 Applicable for measurement of water depth, water level, distance of object in water.

Note: This sensor works only in water, not in air.

2.3 Super fast response time
Baud Rate is settable and up to 115200bps (default)

2.4 Temperature Compensation
The sensor comes with water temperature compensation function to compensate the impact of changing temperature and sound velocity in water.

2.5 Traceable
The products are manufactured at our ISO9001 certified factory. Each product passes a series of strict tests and bears a unique traceability code.

3. Product Dimensions and Terminals Definition

Unit: mm

Contact us please if you want to customize longer cable.

4. Explanations for Outputs

4.1 UART Controlled Output
Baud Rate: 115200 bps
Data bits: 8
Stop bit: 1
Verification: None

When the trigger input pin "RX" receives a trigger pulse with a falling edge or any serial port data, the falling edge will trigger the module to work once, and the output pin "TX" will output one measurement data.

The trigger cycle T₁ must be greater than 18+15 = 33ms.

UART Output Format

4.2 RS485 Output

(1) Communication Parameters
Data bits: 8
Stop bit: 1
Parity Check: No.
Default Baud Rate: 115200 bps
Protocol: Modbus-RTU
Verificaiton: CRC-16/Modbus
Sensor Address: 0x01 (default, settable)
Read Code: 0x03
Write Code: 0x06

(2) Modbus Protocl and Format
Verification: CRC-16
Address of Sensor as slave: 0x01 (default, changeable)

Communication Format:

(3) Controllable Modbus Registers

Note: The command interval shall be longer than the register's response time, in order to ensure the data frame is completely received.

(4) Modbus Communication Examples:
To read processed value:
Host (TX): 01 03 01 00 00 01 85 F6
Client (RX): 01 03 02 02 F2 38 A1
Explanation: Address of sensor is 0x01. Prcessed distance value is 0x 02F2, of which decimal distance is 754mm.

To read real time value:
Host (TX): 01 03 01 01 00 01 D4 36
Client (RX): 01 03 02 02 EF F8 A8
Explanation: Address of sensor is 0x01. Read-time distance value is 0x02EF, of which decimal distance is 751mm.

To read temperature:
Host (TX): 01 03 01 02 00 01 24 36
Client (RX): 01 03 02 01 2C B8 09
Explanation: Address of sensor is 0x01. Real-time temperature value is 0x012C, of which decimal temperature is 30.0℃.
Note: The temperature is acquired from the internal circuit of sensor module, not the air around. It acts as reference for distance calculation.

To change sensor/slave address:
Host (TX): 01 06 02 00 00 05 48 71
Client (RX): 01 06 02 00 00 05 48 71
Explanation: Address of sensor is changed from 0x01to 0x05.

If the address of sensor is forgoten, the broadcast address 0xFF can be used to look up the real address provided that only 1 sensor is connected:
Host (TX): FF 03 02 00 00 01 90 6C
The sensor replies:
(RX): 01 03 02 00 01 79 84
It shows the address of sensor is 0x01. 0xFF is broadcast address.

The adddress change code 0x06 is useful when a host machine controls more than 1 sensor module and each sensor should be assigned with a unique address.

To read/check the current Baud Rate:
Host (TX): 01 03 02 01 00 01 D4 72
Client (RX): 01 03 02 00 09 F8 45
0x0009 indicates the current Baud Rate is 115200bps.

To set the Baud Rate at 2400bps.
Host (TX): 01 06 02 01 00 01 99 B3
Client (RX): 01 06 02 01 00 01 99 B3

Communication Examples of Sensor with RS485 Output:

5. Reference Detection Range at Laboratory

Refer to the diagram here below.

The tested object under water is a PVC tube with diameter 7.5cm and height 100cm.
The sensor was tested 30cm below static water surface. Water temperature 25°C. No water flow.
The curves in colors are the path of the PVC tube center.

Note: The data shown in this diagram were collected from internal laboratory and not contractual inofrmation. However, it does better help customers understand the detection range of product. Please keep enough margin in your real applications.

6. Product Applicable Fields

This underwater ultrasonic sensor module can be used in the following fields and not limited to:
1. AI Robots
2. Proximity and Presence Awareness of Objects in Water
3. Distance/Depth Measurement in Water
It supports micro-controller unit (MCU), for Arduino, Raspberry Pi development.

Functional Test in water tank at laboratory

Refer to 4 pictures below.

A - The sensor in water detects a PVC tube Ф75mm in water which is 18.3cm ahead.
B - The sensor detects the sand layer in water which is 5.1cm below.
C - The sensor is measuring the depth between the water surface and sensor. Result: 4.7cm.
D - The sensor detects a flat object in water which is 14.9cm ahead.