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Clamp-on and surface sensors Pt100

Clamp-on sensors measure at the pipe wall instead of in the medium — no nozzle, no intervention in the process, retrofittable during operation. The measuring insert sits in a clamp-on block that is welded on, screwed on or fixed with a tension band.

The measured temperature is that of the pipe wall, not that of the medium. On well-insulated lines the two are close together; on thin-walled, uninsulated pipes the measuring point should be insulated as well.

WOF — clamp-on and surface sensor Pt100

Clamp-on block for welding on, screwing on or clamping · non-invasive

Dimension drawing WOF

Dimension drawing · dimensions in mm · binding dimensions per order confirmation

Surface sensor for non-invasive temperature measurement on pipelines – without intervening in the process. The measuring insert sits in a clamp-on block that is welded on, screwed on or fixed with a tension band.

  • Pipelines in process, energy and chemical engineering
  • Retrofitting without shutting the plant down
  • Trace heating monitoring
  • Clamp-on block for welding, screwing or clamping
  • Connection by cable, LEMO, M12 or thermocouple plug
  • Calibration optional

Put a version together and enquire

13 positions from the order key in our catalogue. The configurator shows the type code as you go, checks the combination for plausibility and sends the enquiry straight to us.

Open configurator →

You generate the data sheet for the chosen version in the configurator with "Create PDF". Prefer the phone? +49 6181 504 93 18 · info@ghi-gmbh.de

Technical data

Measuring element
1 × / 2 × Pt100 or thermocouple type K, N, J, E
Accuracy
Pt: Kl. A, B … · TE: Kl. 1 / 2
Measuring insert
sheath Ø 3 mm (sleeve 30) or Ø 6 mm (sleeve 60)
Mounting
welding on, screwing on, tension band (state DN)
Cable
material and length as required (e.g. silicone, PTFE, PVC)
Ex marking
II 1G Ex ia IIC T1…T6 Ga · II 2G Ex ib IIC T1…T6 Gb · II 2D Ex ib IIIC T440…T63 °C Db (Messeinsatz WML/TML)
Ex connection values
Ui 30 V · Ii 70 mA · Pi 500 mW · Ci 250 pF/m, Li 50 µH/m · Ex measuring range –50…+450 °C
Certificate
EPS 25 ATEX 1 060 X Rev. 1 (BV, NB 2004) · IECEx EPS 25.0012X

Order example

WOF-1-P1-3-A-1-1-3-1-3-K-K-1-2

Pt100 3-wire cl. A, Ø 3 mm, 3 m silicone, tension band (state DN), standard outlet, operating temperature up to +400 °C

Data sheets and operating instructions in the download centre

Typical industries

The assignment names the most common applications and does not exclude others — talk to us if your application is not listed.

Chemicals & petrochemicals Pharmaceuticals & biotechnology Energy, power plants & hydrogen Mechanical & plant engineering Heating, ventilation, refrigeration & buildings

The same as a thermocouple, for higher temperatures: TOF · measurement in the medium instead of at the wall: Thermowell thermometers

Please contact us

We are glad to help with questions about products, versions and delivery times.

Dennis Kühne
Phone: +49 6181 504 93 18
Mobile: +49 160 91437153
E-mail: info@ghi-gmbh.de

Dennis Kühne, Sales