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TDR (Guided Radar) level transmitter - LTDR

Brand : TECFLUILD
Origin : Italy
Model : LTDR
Mã số : GV2-02186
List Price : Call
Danh mục : Đo mức bằng sóng radar (radar level transmitter)
:
:
Lượt xem : 2245
Cập nhật : 20/05/2012
Số lượng :     
 
Mô tả Sản phẩm

TDR (Guided Radar) level transmitter

Model: LTDR

Manufacturer: TECFLUID(ITALIA)

Introduction:


              LTDR uses TDR (Time Domain Reflectometry) technology.
              Low - energy,  high - frequency  electromagnetic  impulses, generated  by  the  sensor’s  circuitry,  are  propagated  along  the probe which is immerged in the liquid to be measured. 
              When  these  impulses  hit  the  surface  of  the  liquid,  part  of  the impulse  energy  is  reflected  back  up  the  probe  to  the  circuitry which  then  calculates  the  fluid  level  from  the  time  difference between the impulses sent and the impulses reflected. 
              The  sensor  can  output  the  analyzed  level  as  a  continuous measurement  reading  through  its  analog  output,  or  it  can convert  the  values  into  freely  positionable  switching  output signals. 
              LTDR  Sensors  are  also  known  as Guided  Radars  or Guided Wave Radars.
              To meet  the most  application  requirements,  TECFLUID  have three different probe types, detailed as follows:
              Single rod and rope probe
                       • Suitable for a very wide range of applications and liquids.
                       • The  signal  has  wider  detection  radius  around  the  rod. Thus,  it  is  more  responsive  for  measurement  signal disturbances which  can  be  easily  overcome  by  observing  a few mounting considerations and making simple configuration adjustments to the sensor.
                       • The single  rod probe  is also  recommended  for  installation  in bypass  chambers  and  stilling  wells,  which  basically  act together with the rod as a big coaxial probe.  


 

              Coaxial probe
                       • The  high  frequency  measurement  signal  is  completely contained within the outer tube.
                       •  Immune  against  any  external  conditions  and  interfering objects outside its tube.
                       •  Ideal solution for a hassle)free “drop)in anywhere” installation, ensuring  reliable measurement under almost any application condition.
                       •  Ideal  choice  for  measuring  low  reflectivity  liquids  (i.e.  low dielectric constant) such as oils and hydrocarbons.
                       •  Recommended for the use with clean liquids only.
                       •  NOT  recommended  with  viscous,  crystallizing,  adhesive, coating or sticky liquids, fibrous liquids, sludge, slurry, pulp or any  liquids  containing  solid  particles.  Such  liquids  might cause build)up, bridging or clogging inside the coaxial probe.

 

Types

Single rod (up to 3 m)

Coaxial (up to 6 m)

Rob (up to 20 m)

Accuracy

± 3 mm

Resolution

1 mm

Connections

G3/4, 3/4" NPT, Clamp

Materials

AISI-316L, PEEK, Viton

Technical data
Dielectric constant of the product

Temperature

Pressure
Viscosity


 

> 1.6

-40 ... +150 ºC

 PN40
 Up to 5.000 mPa·s

Power supply

12 ... 30 VDC

Outputs

4 - 20 mA (active)

Switching point (PNP)

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