Guidense TDR100


  • Accuracy​
    +/-3mm or 0.03% of measured distance
  • Power requirements
    12 to 30VDC.
  • Enclosure
    Resistant to harsh environments with IP68/NEMA6P enclosure.
  • Measuring range​
    100 to 20.000mm
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The Guidense TDR100 is a guided wave radar (GWR) for continuous level measurement and point level detection in liquids and solids, with active analog and digital control output. Mechanical installation has almost no restrictions and can be done easily. Due to its relatively small G3/4" process connection thread, the Guidense can be mounted at nearly any existing tank nozzle. Configuration of the TDR100 isn't any harder. Easy configuration can be done by your own crew instead of expensive service engineers. 

Mechanical specifications
Materials house 

• Aluminium alloy EN AC-AlSi9Cu3. Cover o-ring: silicone rubber.

• Stainless steel 1.4401 / 316. Cover O-ring: silicone rubber.

Materials probe

Single rod probe: SS 1.4404 / 316L, PEEK.

Single rod probe PTFE coated: PTFE, O-ring (request).

Wire rope probe: SS 1.4401 / 316, PEEK.

Coaxial probe: SS 1.4404 / 316L, PEEK, O-ring.

Gasket at connection thread: Klingersil C-4400, 2mm

Protective rating

IP68 / NEMA6P.

Cable entries M20 x 1,5.
Conn. thread G 3 /4 A or 3 /4” NPT (wrench size 32mm).
Max. load

Single rod probe: Max. lateral load 6Nm.

Wire rope probe: Max. tensile load 5kN.

Coaxial probe: Max. lateral load 100Nm.


Single rod probe: O/ 6mm.

Wire rope probe: O/ 4mm / counterweight: O/ 22mm.

Coaxial probe: O/ 17.2mm

Measurement specifications
Accuracy ±3mm or 0.03% of measured distance, whichever is greatest.
Repeatability < 2mm.
Resolution < 1mm.
Application specifications
Dielectric constant 

Single rod / wire rope probe: εr minimal 1,8.

Coaxial probe: εr minimal 1,4

Conductivity No restrictions
Density No restrictions
Application temperature 

Single rod / wire rope probe: -40°C to +150°C.

Single rod, PTFE coated: -15°C to +100°C (on request).

Coaxial probe EPDM o-ring: -40°C to +130°C.

Coaxial probe FKM (Viton) o-ring: -15°C to +150°C                   

Extended temperature

NBR o-ring: -200°C to +250°C (on request).

FKM (Viton) o-ring: -150°C to +250°C (on request).

Ambient temperature

-25°C to +80°C.

(storage: -40°C to +85°C)

Application pressure

-1bar to 40bar.

(single rod probe PTFE coated: 0 to 4bar, on request).

Velocity of level change < 1.000mm/s
Interface An oil layer of < 70mm thickness on top of water is not detected by the sensor
Dynamic viscosity

Single rod / wire rope probe: < 5.000mPa s=5.000cP 

Coaxial probe: < 500mPa s = 500cP.