KAIDI rosemount guided wave radar level transmitter for business for detecting

I. Principle

Radar level transmitter antenna microwave pulse is narrow, the downward transmission antenna. Microwave exposure to the medium surface is reflected back again by the antenna system receives, sends the signal to the electronic circuit automatically converted into level signals (because the microwave propagation speed, electromagnetic wave to reach the target and the reflected back to the receiver this time is almost instantaneous).

A    Range set

B    Low adjustment

C    High

Datum measurement:  Screw thread bottom or the sealing surface of the flange.

Note: Make sure the radar level meter the highest level cannot enter the measuring blind area

II. The characteristics of 26G radar level meter:

Ø  Beam angle is small, the energy is concentrated, can enhance the ability of echo and to avoid interference.

Ø  Small antenna size, easy to install; Non-contact radar, no wear, no pollution.

Ø  Low weight of about 1kg, convienient for installation.

Ø  Maximum measuring range up to 30m, covering large reservior's level measurement.

Ø  Various output circuit interface and acquisition system.

Ø  Almost no corrosion, bubble effect; almost not affected by water vapor in the atmosphere, the temperature and pressure changes.

III. Product  Introduction

• 908s
  

IV. Structure Size

• Shell Size

Ø  Aluminum Shell 

Ø  Plastic Shell

• Product Size: 

• Size of Hydraulic Fission Displayer (if there was):

• Woodwork Size:

V. Technical Parameters

The outer shell 

The seal between the shell and the shell cover                 Silicone rubber

Casing window                                                                   Polycarbonate

The ground terminal                                                           Stainless steel

The power supply voltage

Allowable ripple

- <100Hz                                  Uss<lV   

- (100~100K) Hz                      Uss<l0mV

Flameproof:

DC 24V / 4~20mA / 0.75W power dissipation      2-wire system

(6 ~24)V DC /  Modbus-RS485 / 90mW power dissipation    4-wire system

The cable parameters

Cable entrance / plug           1  M20xl.5 cable entrance

Terminal                               Conductor cross section 1.0mm² 

Output parameters

The output signal                              (4 ~ 20) mA /RS485

Communication protocol                   HART

Resolution                                        1.6μA

Fault signal                                       Constant current output;

20. 5mA

22mA

3.9mA

The integral time                               (0 ~ 36) s, adjustable

Blind area                                         the ends of the antenna

The maximum distance measurement                  30 meters

Microwave frequency                                              26GHz

Communication interface                                       HART communication protocol

The measurement interval       about 1 second (depending on the parameter settings)

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

Display resolution                    1 mm

Working storage and transportation temperature                            (-40～80) ℃

Process temperature (the temperature of the antenna part)                (-40～80)℃ 

Pressure                                     0.1MPa

Seismic                                       Mechanical vibration l0m/s², (10 ~ 150) Hz