RV20 Incremental Optical Linear Encoder
- Manufacturer: ELCIS Encoder
- Category: Displacement, Optical Linear Encoders, SENSORS, Linear Transducers
The ELCIS RV20 is an incremental optical linear encoder (glass optical scale) with a 20×48.5 mm range and a resolution of 10 or 5 µm. It is an optical linear detector with a graduated glass measuring scale on photo-etched chrome, available in various sizes up to a maximum reading length of 2350 mm, and suitable for multi-axis machine tools, lathes, milling machines, etc.
The scale is made of special glass with a coefficient of expansion similar to that of machine tool beds, with a 20 µm pitch. The sliding detector head has a special device to maintain parallelism with the glass scale. The cover is made of anodized aluminum, with IP53 neoprene protection. LED light source.
Order codes: resolution (5) 5 µm and (10) 10 µm; electronics without code, standard (connector VB – 6c, 10 mA), and (N) 26LS31 driver (connector VD – 9c, 20 mA); power supply (5) 5 V ±5 % and (12) 12 V ±5 % with standard electronics; version BZ; options (X) custom option. Manufacturer example: L / RV20 / 500 / 5 / BZ / N / 5. Working stroke from 100 to 2350 mm in 50 mm increments.
- Photo-etched chrome-plated graduated glass scale 20 µm step, with a coefficient of expansion similar to that of machine tool beds.
- Reading career 100 to 2350 mm in 50 mm steps.
- Resolution of 10 µm (until 120 m/min) either 5 µm (until 60 m/min).
- Protection IP53 with neoprene protectors; starting force 6 N with joints and 3 N seamless.
- Feeding 5 V ±5 % (12 V ±5 % only with standard electronics), max. 100 mA; VB (10 mA) or VD (20 mA) output.
Technical Frequently Asked Questions
What are the dimensions and stroke of the RV20 glass optical rule?
Its dimensions are 20×48.5 mm and the standard stroke ranges from 100 to 2350 mm in 50 mm increments.
What speeds and resolutions does the RV20 model support?
Up to 120 m/min with a resolution of 10 µm and up to 60 m/min with a resolution of 5 µm.
What electronics and output connection does it have?
Standard electronics with VB – 6c (10 mA) connector or 26LS31 driver with VD – 9c (20 mA) connector.
Properties
| Feature | Specification |
|---|---|
| Mechanics | |
| Weight | 0,4 kg + 1.2 kg/m (head + ruler) |
| Standard stroke | 100 to 2350 mm (50 mm steps) |
| Electric | |
| Resolution | 10 µm or 5 µm · ± 10 µm; ±5 µm (with x4 multiplication) |
| Light source / sensors | LED |
| Food and consumption | 5 V ±5 % · 12 V ±5 % (standard electronics only) · max. 100mA |
| Protection and environment | |
| Protection | IP53 with neoprene protectors |
| Max read speed. | 120 m/min (10 µm) · 60 m/min (5 µm) (max. intermittent speed: +30 % of the max. continuous speed) |
| Impact and vibration | ≤ 10 G (11 ms) · ≤ 3 G (40–2000 Hz) |
| Operating/storage temperature | 0 … +50 °C -30 … +70 °C |
| Other features | |
| Scale and reading | Special glass · Photogravure chrome (20 µm pitch) |
| Detector head | Sliding with special parallelism device |
| Dimensions / Cover | 20×48.5 mm • Anodized aluminum cover |
| Starting force | 6 N (with joints) · 3 N (without joints) |
| Zero mark | Every 25 mm or masked upon request |
| Output / Cable | VB (standard) · VD (line driver) · Standard cable 4 m |
| Reference | Configuration |
|---|---|
| L/RV20-200-5-BZ-N-10LRV202005BZN10 | 200 mm stroke · 5 V ±5 % · BZ version · Driver 26LS31 (connector VD · 9c) · 10 µm |
| L/RV20-300-5-BZ-N-10LRV203005BZN10 | 300 mm stroke · 5 V ±5 % · BZ version · Driver 26LS31 (connector VD · 9c) · 10 µm |
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