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Kaidi KD HBRD908F 26 GHz Radar Water Level Gauge for water level measurement of sewers, manholes and rivers
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Application:
Water level measurement of sewers,manholes and rivers
Measuring Range:
30 meters
Protection Grade:
IP68
Accuracy:
±5mm
Frequency:
26GHz
Process Pressure:
(-0.1~0.3)MPa
Process Temperature:
-40~80℃
Process Connection:
Gantryframe,lockingflangefromDN80/3
Outer Covering:
PP fully sealed shell
MOQ
1 SET
Payments:
TT, Paypal, Credit card, Western union
Shipping ways:
Express(DHL,Fedex,TNT,EMS,UPS)/Air/Sea
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PRODUCT OVERVIEW


The HBRD90X series sensor is a 26G radar water level gauge measuring instrument with a measuring distance of up to 80 meters. The antenna is further optimized, and the new and fast microprocessor can perform higher-speed signal analysis and processing, making the meter can be used for measurement of various strongly corrosive liquids.


PRODUCT PRINCIPLE


The radar water gauge antenna emits a very narrow microwave pulse. This pulse travels in space at the speed of light and meets the surface of the measured medium. Part of its energy is reflected back and received by the same antenna. The time interval between the transmitted pulse and the received pulse is proportional to the distance from the antenna to the surface of the measured medium. Due to the extremely high propagation speed of electromagnetic waves, the time interval between the transmitted pulse and the received pulse is very small (nanosecond order) and it is difficult to confirm. The radar water level gauge adopts a special demodulation technology, which can accurately identify the time of the transmitted pulse and the received pulse. The distance from the antenna to the surface of the measured medium is further calculated. 


                                                                                                                                          A: Range setting, B: Low position adjustment, C: High position adjustment, D: Blind zone range



The reference surface of the measurement is: the bottom surface of the thread or the sealing surface of the flange.

 

Note: When using radar water level timing, be sure to ensure that the highest liquid level cannot enter the blind area of the measurement (the area shown in D in the figure)




PRODUCT FEATURES


The radar water level gauge recommended by the industry uses a 26GHz transmission frequency, so it has:

● The beam angle is small, the energy is concentrated, and the anti-interference ability is stronger, which greatly improves the measurement accuracy and reliability.


● The antenna size is small, easy to install and add dust cover and other antenna protection devices.


● Lighter about 1KG, easy to install.


● The measurement range is up to 30 meters, covering water level measurement such as large reservoirs.


● Various output circuit interfaces cooperate with the acquisition system.


● It adopts the pulse working mode, the transmitting power of the radar water level gauge is extremely low, and there is no harm to the human body and the environment.


PRODUCT SPECIFICATION


Application: Water level measurement of sewers, manholes and rivers

 

Measuring range: 30 meters

 

Process connection: Gantry frame, locking flange from DN 80/3"

 

Process temperature: -4080℃

 

Process pressure: (-0.10.3) MPa

 

Accuracy: ±5mm

 

Frequency range: 26GHz

 

Protection level: IP68

 

Power supply: DC (6-24V) / four-wire DC 24V / two-wire

 

Signal output: 4...20mA/HART (two-wire/four-wire) RS485-Modbus

 

Shell: PP fully sealed shell 


APPEARANCE OF SIZE


TECHINICAL PARAMETER


ShellSeal between housing and housing coverPP fully sealed
Shell windowPolycarbonate
Ground terminalStainless steel
Supply voltageFour-wire system(624) V DC / RS485 Modbus / power consumption 90mW
Two-wire systemDC 24V / 4~20mA / power consumption 0.75W
Allowable ripple - <100Hz  UssUss
 - (100~100K)Hz  UssUss
Cable parametersCable entry/plugM20xl.5 cable entry
TerminalsConductor cross section 1.0mm²
Output parametersoutput signalRS485 Modbus /  4~20mA
ProtocolModbus / Hart
Resolution1. 6u A
Fault signalThe current output is unchanged;
20. 5mA
22mA
3.9mA
Integration time(036)s, adjustable
Blind spotAntenna end
Measuring distanceHBRD90830m
HBRD90970m
Microwave frequency26GHz
Measurement intervalAbout 1 second (depending on parameter settings)
Adjust the timeAbout 1 second (depending on parameter settings)
Display resolution1mm
Working storage and transportation temperature(-4070) 
Process temperature (the temperature of the antenna part)(-40100)
PressureAtmospheric
ShockproofMechanical vibration l0m/s², (10150)Hz


INSRALLATION REQUIREMENTS


Please pay attention to the following items to ensure that the meter can be installed correctly: Please reserve enough space for installation. Please avoid installation situations with strong vibration.



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