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Water Conservancy River RS485 Radar Level Sensor

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Water Conservancy River RS485 Radar Level Sensor
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Features
Specifications
Product Name: HKD906 Explosion-Proof Radar Level Sensor For Small Liquid Storage Tank
Application: Liquid
Range: 30m
Output: RS485
Color: Made To Order
High Light:

guided wave radar level transmitter

,

non contact type radar level transmitter

Basic Infomation
Place of Origin: Sichuan, China (Mainland)
Brand Name: vacorda
Certification: CE/ISO9001
Model Number: HKD908
Payment & Shipping Terms
Packaging Details: wooden box
Supply Ability: 110 Piece/Pieces per Week
Product Description

Water Conservancy River RS485 Radar Level Sensor

Water Conservancy River RS485 Radar Level Sensor 0

The typical installation method of hydraulic radar for measuring rivers and reservoirs is as follows

Water Conservancy River RS485 Radar Level Sensor 1

Explosion Proof Connection

The intrinsic safety version sensors (Exia IIc T6) use Alu-die casting housing and filling Silicone rubber sealants internal structure aimed to prevent sparks resulted from circuit failure from leaking out. It is applicable for the continuous level measurement of flammable medium under Exia IIc T6.

A safety barrier FBS-2 must be used together with the intrinsic safety instrument. It is an associated device to this product for the power supply of this product. The main specification is intrinsic safety: Exia IIC, voltage of power supply: 24V DC±5%, short-circuit current: 135mA, operating current: 4...20mA.

All cables must be shielded. The max length is 500m for the cable from the barrier to the sensor. Stray capacitor≤0.1μF/Km, stray inductance 1mH/Km. Instrument must be connected to the ground potential. Any unapproved associated device is not allowed to be used.

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Product parameters​

Suitable for Medium: Liquids, especially high temperature and pressure environment of liquid
Application: Sealed cans, greater pressure liquid measurement
Explosion-proof Grade: Exia IIC T6 Ga/Exd IIC T6 Gb
Measuring Range: 15m
Antenna: Single cable or single rod antenna
Accuracy: ±10mm
Process Temperature: (-200~400)℃
Process pressure: (-0.1~40)MPa
Signal output: (4~20)mA/HART
The Scene Display: Four LCD/Can be programmed
Power Source: Two-wire (DC24V), Four-wire(DC24V/AC220V)
Shell: Aluminum /Plastic
Connection: Flange (optional) / Thread
Frequency: 500MHz-1.8GHz

 

Selection principle

Guided wave radar can only measure powder for solids, because guided wave radar is contact type, the antenna (how long the cable is and how far) cannot measure blocks and particles (easy to break the cable), and because of the side pull of the solid, the guided wave radar The cable antenna must be selected for measuring powder, and the rod antenna is relatively easy to fall off.

With DN100 flange Maximum range 10m
With DN150 flange Maximum range 15m
With DN200 flange Maximum range 20m

 

Selection and Installation of Guided Wave Radar

1.All jars with agitation cannot be measured directly by using guided wave radar. Install the waveguide or bypass tube, the radar is installed inside the tube to measure and install a bracket

Water Conservancy River RS485 Radar Level Sensor 4

2. Guided wave radar can penetrate about 20cm of foam, thicker foam cannot Guaranteed effect

3. Guided wave radar is suitable for slightly crystalline working conditions. Enhanced resistance to crystallization or coagulation

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Configuration of flange

1. HKD701 radar standard minimum matching flange is DN50,
2. Flat welding is compatible with DN40 flange,
3. Special type, can be matched with DN20 flange by extension sensor.

4. HKD701 is made of metal for the tank top and can be screwed.

 

According to different measurement principles, radar level gauges can be divided into two types. It is a radar level gauge that controls the liquid level, and its accuracy is generally about 10mm; the other is a radar level gauge, which is used for precise measurement and settlement, with an accuracy of 1mm. Structurally, it is divided into rod antenna, horn antenna and cable antenna, debugging, installing and using the analog signal output by the radar level gauge. The digital signal is superimposed on it by 4~20mADC to realize the compatibility of analog signal and digital signal, conforming to HART protocol. It can provide users with more attractive solutions, especially suitable for large fluctuations, condensation, suspension, viscous slurries, dirty media, and corrosive liquid level measurement. It has a continuous frequency self-calibration function to ensure stable measurement accuracy; it uses HART protocol for digital communication, and uses communication equipment or portable handheld devices to process liquid level variables; the output signal is an analog signal and a HART digital signal superimposed. Using the 4-20mAhar manual operator, the output signal can be divided into liquid level, calculated volume or standard volume; all configuration information and programs are stored in non-erasable memory. When the power is interrupted, all data can be restored; the frequency is continuously self-calibrated to ensure the accuracy of the level gauge.

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