Renishaw: Compact Readhead RGH20D50A00A

A compact readhead for use with 20 um RESR rotary encoders and RSLR high accuracy linear scale

The RGH20 is a compact readhead for use with Renishaw's range of 20 um RESR rotary encoders and RSLR high accuracy linear scale.

Like all Renishaw encoders, the RGH20 offers reliable, high-speed, open, non-contact performance with excellent immunity to dust, scratches and light oils on the scale.

The RGH20 also benefits from Renishaw's integral readhead set-up LED which simplifies installation and monitors signal condition during operation.

Digital and analog RGH20: RGH20D - 5 um resolution

Features

• Readhead size: 36 x 13.5 x 14.8 mm
• Resolutions to 10 nm
• Speed up to 8 m/s (up to 2 938 rpm depending on ring size and resolution)
• Analogue or digital outputs
• Low Sub-Divisional Error (SDE): typically ±0.15 µm

Specifications:

• Compatible with 20 um RESR angle encoder and RSLR high-accuracy linear scales.
• Filtering optics provide excellent dirt immunity.
• Compact and robust housing.
• Industry-standard digital and analog outputs.
• Integral interpolation and set-up LED on RGH20 option.
• Resolutions 5 um
• Reference mark or single limit switch sensor.
• Hi-flex double-screen 8-core cable.