Strap-on temperature sensor
Description
The model TF44 strap-on thermometer is used for temperature measurement on pipe surfaces in the range -50 ... +200 °C (-58 ... +392 °F). As a result of the indirect temperature measurement, on one hand any influence on the medium is avoided, and, on the other hand, the medium has no effect on the service life of the thermometer (e.g. high pressure loading, aggressive media).
The specially contoured, aluminium probe sleeve enables exceptional heat transfer from the pipeline to the thermometer. The use of a thermal compound is usually not required. In order to keep the influence of the ambient temperature as low as possible, we recommend that the measuring point is well insulated. In particular, for large temperature differences between medium and the environment, good insulation of the measuring point is essential.
Fig. left: Mounted on a pipe
Fig. right: With quick-mounting bracket
For quick and particularly easy mounting, the TF44 features WIKA quick-mounting brackets for different pipe diameters. With these, model TF44 strap-on thermometers can be mounted easily without tools.
The TF44 consists of a measuring element within an aluminium sleeve. The connection of the probe to the evaluation electronics is achieved via a connection lead from PVC or silicone.
Special features
- Measuring ranges from -50 ... +200 °C
- The pipeline system remains sealed
- The medium is not affected
- Easy mounting with quick-mounting bracket
- Good heat transfer through aluminium sleeve
Build a TF44 for your task
The article number is assembled automatically. If unsure — ask an engineer; we'll match the line's parameters.
- Probe designSquare end 6 x 6 mm; aluminium
- Measuring element—
- Connecting lead—
- Lead length [W]—
- Electrical connectionBare wires
- Mounting accessories—
- heat directing meansWithout
Finish your configuration
Select every option to submit the request.
| Model | TF44 |
| Product family | TF |
| Subcategory | Strap-on thermometer |
| Temperature ranges | −50…+200 °C · −20…+105 °C · −30…+130 °C |
| Process temperature | −50…+200 °C |
| Electrical connection | Blank bare wires, End splices, Connector to specification |
| Probe material | Aluminium |
| Ambient temperature | −50…+200 °C |
| IP rating | IP66 |
| Sensor type | Pt1000 |
| Sensor class | B |
| Probe diameter | 6 mm |
| Thermowell | No |
| NTC | Pt100 | Pt1000 | KTY | |
|---|---|---|---|---|
| Temperature range | - | ++ | ++ | - |
| Accuracy | - | ++ | ++ | - |
| Linearity | - | ++ | ++ | ++ |
| Long-term stability | + | ++ | ++ | + |
| International standards | - | ++ | ++ | - |
| Temperature sensitivity [dR/dT] | ++ | - | + | + |
| Impact of the connection lead | ++ | - | + | + |
| Insulation material of the connection lead | Measuring range |
|---|---|
| PVC | -20 …+105 °C |
| Silicone | -50 …+200 °C |
| Measuring element | Measuring range |
|---|---|
| NTC | -30 …+130 °C |
| Pt100 | -50 …+200 °C |
| Pt1000 | -50 …+200 °C |
| KTY | -50 …+150 °C |
| Insulation material | PVC | Silicone | |
|---|---|---|---|
| Highest working temperature | 105 °C | 200 °C | |
| Flammability | self- extinguishing | self- extinguishing | |
| Water absorption | slight | slight | |
| Suitability for steam | good | limited | |
| Chemical resistance against | Dilute bases | + | + |
| Dilute acids | + | + | |
| Alcohol | + | + | |
| Petrol | + | - | |
| Benzene | - | - | |
| Mineral oil | + | + |
View all (5)
| Article | Order number | |
|---|---|---|
| Quick-mounting bracket, galvanised steel | ||
| for pipe diameter12…15mm | 14145991 | |
| for pipe diameter19…22mm | 14100349 | |
| for pipe diameter25…28mm | 14100347 | |
| for pipe diameter32…35mm | 14149603 | |
| for pipe diameter39…42mm | 14149604 | |
| Worm-drive hose clip, galvanised steel | ||
| Clamping range 16 ...27mm | 14050509 | |
| Clamping range 25 ...40mm | 14049067 | |
| Clamping range 40 ...60mm | 14050517 | |
| Clamping range 60 ...80mm | 14050518 | |
| Clamping range 80 ...100mm | 14041143 | |
| Silicone thermal compound paste | ||
| 1 g syringe | 11516870 | |
| 100 g tube | 1606212 |
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Ask an engineer →175 standard articles of family TF
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