Strain transducer
Description
The strain transducer has been designed for applications in which there is a need to measure the deformation due to external forces acting on an existing component. The device is simply screwed onto the component. After calibration the unit obtains the characteristics of a force transducer.
The strain transducer is suitable for use on structures where elongation is in the range max. 1.0 % . Two screws are used to attach it to a region of the structure at which the relevant elongation occurs. An amplifier is integrated. The combined deformation body/strain transducer is easy to adjust via control signals.
Strain transducer, model F9302
At the heart of the strain transducer is a 7 mm thin film sensor with a temperature compensated Wheatstone bridge circuit fitted into the tightest of spaces. The digital programmable amplifier permits factory presetting to specific application requirements. The transducer may be used both for static and for dynamic measurement.
Special features
- Measuring ranges strains from 0 ... 200 με up to max. 0 ... 1,000 με
- Good long-term stability, high shock and vibration resistance, good reproducibility
- As retrofitting, easy to install
- For use in extreme outdoor applications (IP67)
- Relative linearity error < 2% F nom
| Model | F9302 |
| Product family | F930 |
| Subcategory | Strain transducer |
| Accuracy class | < 2 % Fnom |
| Process temperature | −20…+80 °C |
| Mounting type | Screw-mounted (M6) |
| Output signal | 4 … 20 mA, 3-wire |
| Ambient temperature | −40…+80 °C |
| IP rating | IP67 |
| Weight | 0.2 kg |
| Certifications | DIN EN 55011DIN EN 61326-1DIN EN 61326-2-3 |
| Cable length | 10 m |
| Datasheet languages | EN |
| Model F9302 | |
|---|---|
| Strain | 0 …±200 µε, 0 …±500 µε, 0 …±1,000 µε |
| Relative linearity error d lin | ≤±2%F nom |
| Relative repeatability error in ■ unchanged mounting position b rg ■ different mounting positions b rv | 0.5%F nom 0.5%F nom |
| Temperature effect on zero signalTK 0 | 0.1 %/10 K |
| Temperature effect on characteristic valueTK C | 0.3 %/10 K |
| Rated temperature range B T, nom | -20 …+80 °C |
| Operating temperature range B T, G | -40 …+80 °C, permanently laid cable -25 …+80 °C, moving cable |
| Storage temperature range B T, S | -40 …+85 °C |
| Output signal (rated output) C nom | 4 …20mA, 3-wire |
| Supply voltage | DC10…36V |
| Current consumption | Max.25mA |
| Burden | > 10 kΩ |
| Limit frequency | < 2 kHz (-3 dB) |
| Electrical connection | Circular connection, M12 x 1, 4-pin |
| Protection (acc. to IEC/EN 60529) | IP67 |
| Electrical protection | Reverse voltage, overvoltage and short-circuit protection |
| Emission | DIN EN 55011 |
| Immunity | DIN EN 61326-1/DIN EN 61326-2-3 |
| Surface finish | Minimum requirement: evenness 0.05 mm/surface roughness Ra=16 |
| M6 srew tightening torque | 12Nm |
| Weight | 200 g |
| Electrical connection | 4…20mA (3-wire) | Pin |
|---|---|---|
| Output | ||
| Supply (UB+) | Brown | 1 |
| Supply (UB-) | Blue | 3 |
| Signal (+) | White | 2 |
| Signal (-) | - | - |
| Inputs | ||
| Control line 'Tara' (Com 1) | Black | 4 |
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