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  1. View all Open Optical Encoder Readheads
View all Open Optical Encoder Readheads

ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale

Part number: A4A0H15A20F
Price available on request
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - 1
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - 2
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - 3
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - 4
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - 5
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - thumbnail 1
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - thumbnail 2
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - thumbnail 3
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - thumbnail 4
ATOM DX™ 40 μm pitch, linear and partial arc, cabled readhead (50 nm resolution, 1.5 m cable, 9-way D-type termination, 20 MHz clocked output, and 3-state alarm) for use with RTLF40 or RKLF40 scale - thumbnail 5
Made to order - Typically a 4-6 week lead time.
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ATOM DX is Renishaw’s smallest incremental optical encoder with digital output direct from the readhead. Read more


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Technical table
Description
About the ATOM DX series of miniature digital encoders:

Technical table

namevalue
Alarm format3-state alarm
Axis typeLinear,Partial arc
Cable length (m)1.5
Cable termination9-way D-type connector
Clocked output options20 MHz
Clocked output frequency (MHz)20
Encoder product typeReadhead
Encoder sizeMiniature
Extended temperature rangefalse
Functional safetyfalse
Max speed0.806 m/s
Measurement typeIncremental
Movement typePartial arc,Linear
Output signalDigital
Readhead size20.5 mm x 12.7 mm x 10.85 mm
Readhead termination9-way D-type connector
Readhead typeIncremental digital RS422
Readhead variantCabled
Encoder resolution50 nm
Scale compatibilityFlexible stainless steel tape
Scale pitch (µm)40
Scale shapePartial arc,Linear
SeriesATOM DX
Sub-divisional error<±120 nm typical
Ultra high vacuumfalse

Description

ATOM DX is Renishaw’s smallest incremental optical encoder with digital output direct from the readhead.

A4A0H15A20F is a miniature incremental encoder readhead. RKLF40 scale is suitable for both partial arc and linear applications and is used in substrate mastered applications where the scale adopts the thermal expansion behaviour of the substrate for enhanced stability.

Cabled A4A0H15A20F features an integral 1.5 m hi-flex cable with a D-type connector, providing positional feedback, onboard interpolation, and filtering optics all in a miniature package.


A4A0H15A20F Key Features / Benefits:

  • A4A0H15A20F has a resolution of 50 nm
  • A4A0H15A20F is compatible with RTLF40 and RKLF40 linear tape scales
  • A4A0H15A20F is supplied with a 1.5 m cable terminated by a 9-way D-type connector
  • A4A0H15A20F features a bi-directionally repeatable, customer selectable reference mark and an integrated 3-state alarm for enhanced safety
  • A4A0H15A20F requires a controller input frequency of at least 20 MHz

About the ATOM DX series of miniature digital encoders:

  • Miniature, all-in-one, digital output optical encoder with resolutions down to 2.5 nm
  • ATOM DX readheads combine Renishaw's market proven filtering optics, dynamic signal control and advanced interpolation technology. This provides low SDE, excellent dirt immunity, and eliminates the need for separate interfaces
  • Integral set-up LED for simple installation and calibration
  • An optional Advanced Diagnostic Tool ADTi-100 (A-6195-0100) is available for real‑time encoder data feedback during installation or for in-field diagnostics
  • Available in two variants; cabled and top exit, for the most demanding space constrained installations
  • A CAD model of the ATOM DX readhead is available from the Renishaw website
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