RPA Linear Potentiometer
- Manufacturer: ELCIS Encoder
- Category: Displacement, Linear Potentiometer, SENSORS, Potentiometric linear sensors, Linear Transducers
The RPA linear potentiometer is an absolute (analog) potentiometric transducer with a stainless steel shaft and guides inside the housing.
It is suitable for applications in instruments and machines with limited space. Its resistive element is made of conductive plastic.
Available in active strokes from 10 mm to 450 mm, with resistive values of 1 kΩ or 5 kΩ and linearity from ±0.05 % to ±0.3 % depending on the stroke. It offers standard IP40 protection or IP65 sealed protection, and connection via cable or C193 swivel connector. Available in guemisa.es.
- Absolute linear potentiometer with infinite resolution.
- Axis of stainless steel with internal guides and useful life of more than 100 × 10⁶ cycles.
- Resistive element in conductive plastic.
- Active careers of 10 to 450 mm with linearity of ±0.05 % to ±0.3 % depending on the career.
- Protection IP40 standard or IP65 sealed (option 3), with cable or connector output C193.
Technical Frequently Asked Questions
What type of output and operating principle does the RPA have?
It is an absolute potentiometric (analog) transducer with infinite resolution. It should be used as a voltage divider with a maximum current of 1 µA at the wiper contact; if the connected system requires more current, an additional circuit will be necessary.
What are the available races and endurance values?
Standard strokes from 10 to 450 mm (other lengths available upon request). Resistance is 1 kOhm ±20 % for the 10 and 25 mm strokes and 5 kOhm ±20 % for the rest.
What protection and connectivity options does it offer?
Standard IP40 protection or IP65 sealing (option 3), and cable connection (standard, 3-pole according to the drawing) or C193 swivel connector (option 4).
Properties
| Feature | Specification |
|---|---|
| Mechanics | |
| Standard stroke | 10 to 450 mm (see technical specifications) |
| Housing and mounting | Anodized aluminum housing with nylon 66 fiberglass-reinforced locking flanges · Mounting with movable metal feet |
| Electric | |
| Resistive element | Conductive plastic (potentiometric) |
| Linearity | ±0.05 % at ±0.3 % (see technical sheet) |
| Resolution and repeatability | Infinite · < ± 0.013 mm |
| Food and consumption | 60 V max. · max. consumption 3W to 10W |
| Max currents. | Cursor ≤ 1 mA (rec. < 1 µA) · Resistance ≤ 10 mA |
| Isolation and regularity of departure | Residual current < 5 µA at 500 V for 1 minute · Output regularity < ± 0.1 % with respect to the input voltage |
| Protection and environment | |
| Protection | IP40 standard · IP65 sealed |
| Max. operating speed. | 5 m/s |
| Impact and vibration | 10 G · 40 G |
| Shelf life | > 100 × 10⁶ cycles |
| Operating/storage temperature | -30 … +100 °C -50 … +120 °C |
| Other features | |
| Starting force | ≤ 1.2 N standard · ≤ 5 N sealing |
| Electrical connection | Wire (standard) or C193 swivel connector |
Other products
