HRRD730 series radar level gauge

The radar level transmitter antenna emits and narrows the microwave pulse. This pulse propagates in space at the speed of light. When it encounters 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 (on the order of nanoseconds). It is difficult to confirm. The 90X series 26G radar level gauge uses a special demodulation technology to accurately identify the transmitted pulse and The time interval of the pulse is received to further calculate the distance of the antenna from the surface of the measured medium.

Measurement range up to 70 meters covering water level measurement of large reservoirs.

Small antenna size easy to install and add dust cover and other antenna protection devices.

Light weight is about 1KG easy to install.

Multiple output circuit interfaces cooperate with the acquisition system.

Small beam angle concentrated energy stronger anti-interference ability greatly improving measurement accuracy and reliability

Using pulse working mode the radar level gauge has very low transmission power and no harm to human body and environment.

Product related

  • Download: 点击下载
  • Brand : 恒瑞HighReach
  • Model : HRRD7301/7302
  • Mailbox : highreach@hr-tool.cn
  • Phone : 0917-3208995

Technical Parameters

Specification


Housing                                                                                                                                                                  
Seal between the outer casing and the outer cover                           
Silicone Rubber
Shell window                                                       
Polycarbonate

 Ground terminal                                                      
stainless steel
Supply voltage
Four-wire system         Standard type                       (6~26) V DC

                                        Power consumption                  max 12mA

                                        Allow ripple                  -<100Hz                    Uss<lV

                                                                                                       - (100~100K) Hz      Uss<l0mV
Cable parameter                         

 Cable entry/plug                M20xl.5 cable entry
Terminals                          Wire cross section 1.0mm&sup2; 

Output parameters                          

output signal                           RS485

 communication protocol        Modbus

Resolution                                   1. 6u A

Fault signal                                            Current output is unchanged;20. 5mA

                                                                 22mA;

3.9mA

duration                       (0~50)s,adjustable

Blind zone                                                         天Antenna end

Max. Measurement    distance                           NYRD-806                   30m
NYRD-808                   70m

Microwave frequency                       26GHz

Communication Interface              /Modbus communication protocol

Measurement interval        About 1 second (depending on parameter settings)

Adjust the time                   About 1 second (depending on parameter settings)

display resolution                                                      1mm

Working storage and transportation temperature          (-40~100) ℃

Process temperature (temperature of the antenna section)               (-40~250)℃

Pressure                                                                  Max. 4MPa

Shock  tolerance                                      Mechanical vibration      l0m/s&sup2; (10~150)Hz


Related parameters

structure size
HRRD730X structure size

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