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80G Radar Water Level Gauge
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111.1 Product Overview
HCRZ-LD100mm wave radar adopts FMCW mode, non-contact installation design, small volume, and compact structure. High precision, low power consumption, strong anti-interference ability, suitable for water level monitoring such as lakes and rivers, mountain flood warning, water storage pools, and sewage pipelines.
When working, the water level gauge detection plane is parallel to the horizontal plane. By emitting radar waves to the horizontal plane and analyzing and calculating the echo reflected by the horizontal plane, the precise distance value between the product detection plane and the horizontal plane and the water level value are obtained.
This product has the following features:
FMCW frequency modulated continuous wave mode ranging.
Distance measurement accurate to the millimeter.
Small size, convenient for customers to install quickly and easily, easy to disassemble.
Non-contact radar measuring system, effectively reducing interference in harsh environments, achieving maintenance-free.
Compact and integrated design, compact structure, improving the stability, reliability and accuracy of the equipment.
Scope of application:
Suitable for lake and river, mountain torrent early warning, reservoir, sewage pipeline and other water level monitoring
1.2 Product size chart
2.3 Installation instructions
2.3.1 Installation Notes
Non-contact radar products may have inaccurate measurement data due to electromagnetic interference in a complex enclosed environment.
Please install and use this product correctly, incorrect installation methods will lead to inaccurate measurement data.
1) The product must be firmly installed after installation, and will not shake due to external factors.
2) The radar plane must be kept parallel to the surface of the water being measured.
3) The installation point and installation height must be strictly selected according to the instructions for use.
2.3.2 Selection of the installation point
1) Choose an open water surface without obstructions, floating objects, or other factors that do not affect radar waves to reduce environmental interference.
2) When near the water surface (less than 2m), it is recommended to have few or no large metal objects near the radar to reduce multiple reflection interference.
2.3.3 Selection of installation height
The installation height should be selected according to the scene. The installation height selection needs to meet the following conditions.
1) The installation height must not be less than the blind zone of the radar measurement, and must not be greater than the maximum measurement range, generally it is best to be within half of the maximum range.
The beam of the water level gauge must be fully aimed at the water surface, and it is strictly forbidden for the beam of the water level gauge to be partially or fully aimed at non-water areas.
3) It is recommended to install the water level gauge at a higher height in places with large and complex water waves, below two-thirds of the maximum range.
Please check that the equipment is intact and all parts are present in the carton before installation.
The gas guiding cable should not be bent excessively as it contains a gas guide pipe, which could cause it to break; never use the gas guiding cable as a rope for the Doppler flow meter, dragging the Doppler flow meter with the gas guiding cable;
The circular ultrasonic transducer in front of the probe cannot be impacted or scratched;
The instrument probe should avoid being exposed to the sun for a long time to prevent the temperature from being too high and causing a fault;
The acoustic doppler current meter should be regularly cleaned of silt on the ultrasonic transducer and pressure sensor in areas of high suspended sediment concentration to prevent the silt from blocking the pressure sensor.
2.3.4 Equipment installation
Radar and bracket, bracket contains 3 materials: universal joint bracket, radar mounting plate, screws
2、Support screw installation diagram
3. Complete illustration of the support with the radar installed
4、Of course, you can also install the bracket and radar as shown below, and adjust it according to the actual installation requirements on site.
Communication protocol
3.1 Communication protocol
1. Hardware and Data Format:
Hardware Interface: RS485
Baud Rate (Default): 9600
Data Format: 8N1
Default Address: 01
Checksum: CRC16 Polynomial A001
3. Example:
1)Inquiry of water level:
Send: 01 03 00 02 00 01 25 CA
Return: 01 03 02 0B 28 BF 6A
0B28 (16 base) = 2856 cm (10 base)
2) Change the range
Example: Change the range to 3000cm
3000(decimal) = 0BB8(hex)
Modify the range
Send 01 06 00 05 0B B8 9E 89
Return 01 06 00 05 0B B8 9E 89
Where
01 06 00 05 is a fixed value
0B B8 is the set range value, unit cm (16 hexadecimal)
Modify sensor address
Example:
Change the address to
2
Serial port transmission
01 06 03 F4 00 02 49 BD
level gauge return
02 06 02 00 02 7D 49
Among them
01 06 03 F4 Fixed value
00 02 Write address
49 BD CRC Checksum
1.3 Hardware parameters
|
Parameter |
Symbol |
Minimum value |
Typical value |
Maximum value |
Unit |
Explanation |
|
Transmitter |
||||||
|
Emission frequency |
f |
77 |
|
81 |
GHz |
|
|
Output power (EIRP) |
Pout |
|
13 |
20 |
dBm |
|
|
Antenna angle |
||||||
|
Beam width (-3dB) |
Horizontal |
|
6 |
|
° |
|
|
|
Vertical direction |
|
6 |
|
° |
|
|
Power supply |
||||||
|
Working voltage |
VCC |
9 |
12 |
24 |
V |
|
|
Working current |
International Cricket Council |
|
20 |
|
mA |
Typical value |
|
Environment |
||||||
|
Working temperature |
TOP |
-45 |
|
+85 |
℃ |
|
|
Dimensions (length x width x height) |
Φ66x96 |
mm |
|
|||
|
Weight |
212 |
g |
|
|||
|
Measurement indicators: |
||||||
|
rangefinder range |
0.1~40m |
|||||
|
Measurement accuracy |
±2mm |
|||||
|
Resolution |
1mm |
|||||
|
Boot time |
100ms fastest |
|||||
Installation instructions
2.1 Unboxing Instructions
Please carefully open the packaging, ensuring that the packaging box and equipment are not damaged. Check the label on the packaging box to confirm that the product model and serial number match your order.
Please fully open the packaging box and check if it contains the following accessories:
|
Product name |
Specifications Model Number |
Equipment, accessories |
Quantity |
Note |
|
Radar water level meter (485 output) |
HCRZ-LD100 |
|
1 |
Please bring your own extension cord, please familiarize yourself with the equipment before installation and have the relevant auxiliary material tools ready. The pictures are for reference only, subject to the actual product. |
|
|
1 |
|||
|
|
1 |
Water level gauge host
Certificate of Conformity
Connecting bracket2.2 Connection Description
|
color; |
Definition |
|
red |
Positive power supply |
|
Black |
Power supply negative pole |
|
Yellow |
RS485-A |
|
Green |
RS485-B |
Definition of Common General Purpose Registers
|
Parameter |
Instruction |
Reading and writing |
Unit |
Data type |
Note |
|
Air height |
01 03 00 00 00 01 84 0A |
Read-only |
cm |
Integer type AB |
|
|
Air height |
01 03 00 01 00 01 D5 CA |
Read-only |
mm |
Integer type AB |
|
|
Water level |
01 03 00 02 00 01 25 CA |
Read-only |
cm |
Integer type AB |
|
|
Water level |
01 03 00 03 00 01 74 0A |
Read-only |
mm |
Integer type AB |
|
|
Range |
01 03 00 05 00 01 94 0B |
Read |
cm |
Integer type AB |
|
|
Modify the range |
01 06 00 05 XX XX CRCCRC |
Write |
cm |
|
See Example 2 |
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