µSPEED-SMART-ECO Rotational speed
µSPEED-SMART-ECO: sensors and measurement devices by Elovis for rotational speed.
This series on the Elovis site (opens in a new tab)
Shared technical specifications for the series
Properties every model in the series has. What differs is in the models table below.
Range across models
The span covered by the models of the series together — not the range of each model.
| Working distance | 120–240 mm |
|---|---|
| Measured linear speed range | 0.01–80 m/s |
Models in the series
One column per model: what differs between the models of the series.
| Parameter | µSPEED-SMART-ECO-S1/120 | µSPEED-SMART-ECO-S80/240 |
|---|---|---|
| Operating temperature | 5–55 °C | 5–55 °C |
| Accuracy (% FSO) | 0.3 % | 0.3 % |
| Linearity reference | Official typical length and speed accuracy: ±0.3% of reading. | Official typical length and speed accuracy: ±0.3% of reading. |
| Sampling rate reference | The official ELOVIS page specifies quadrature output configurable from 1 to 100,000 pulses/m plus serial ASCII speed/length data, but no fixed internal measurement or update rate; output pulse frequency depends on the configured pulses/m and surface speed. | The official ELOVIS page specifies quadrature output configurable from 1 to 100,000 pulses/m plus serial ASCII speed/length data, but no fixed internal measurement or update rate; output pulse frequency depends on the configured pulses/m and surface speed. |
| Repeatability (% FSO) | 0.05 % | 0.05 % |
| Technical specification details | 1 m/s maximum surface speed; 120 mm nominal stand-off. | 80 m/s maximum surface speed; 240 mm nominal stand-off. |
| Protection class (DIN EN 60529) | IP67 | IP67 |
| Repeatability reference | Official typical repeatability: ±0.05% of reading. | Official typical repeatability: ±0.05% of reading. |
| Outputs and interfaces | RS422 / RS485 | Digital I/O |
| Working distance | 120–120 mm | 240–240 mm |
| Interfaces | RS-232 | RS-232 |
| Measured linear speed range | 0.01–1 m/s | 0.01–80 m/s |
| Non-contact speed measurement | True | True |
| Status | Active | Active |
The industries we serve
Frequently asked questions
Answers to the most common questions about our products and services
The manufacturer states typical ±0.3% for SMART-ECO, compared with ±0.05% on the SMART page. Confirm model and application conditions.
No. It is a unidirectional family for processes without reversal or with an external machine direction signal.
It is typical accuracy at 2σ for lengths above 10 m or 3σ above 20 m. Validate the measurement requirement separately for shorter pieces.
No. S1/120 is documented up to 1 m/s at 120 mm stand-off, while S80/240 is documented up to 80 m/s at 240 mm.
Quadrature output and serial ASCII data are documented. Industrial fieldbus and Ethernet are options, rather than all being integrated in every system combination.
Get a quote or advice
Tell us what you need and an engineer will come back to you.