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ATOM DX™ encoder series

The ATOM DX encoder series is Renishaw's smallest incremental optical encoder with digital output direct from the readhead, providing positional feedback, onboard interpolation, and filtering optics all in a miniature package.

ATOM DX builds on the market proven optical system of the ATOM™ encoder platform and integrates Renishaw's high-performance interpolation technology, reducing system size and removing the need for additional adaptors and interfaces. ATOM DX is suitable for the most space constrained applications where performance cannot be compromised.

Constructed with Renishaw's integrated set-up LED, for an intuitive and simple installation process based on the well established auto-calibration routine, ATOM DX is ready to install straight from the box. ATOM DX is compatible with the optional Advanced Diagnostic Tool ADTi-100 and ADT View software: they provide in-depth advanced diagnostic information to aid optimisation of encoder installation and in-field fault finding to satisfy the most demanding motion control applications.

ATOM DX readheads can be used with a wide range of linear, partial arc and rotary scales to meet most application requirements, and comes in two formats: cabled and top exit variants with either 20 µm or 40 µm scale options.

Performance in a miniature head

Miniature pictogram

ATOM DX fits into the smallest applications with heights as low as 7.85 mm. The top exit variant offers all the benefits and features of the cabled ATOM DX encoder, but in an even smaller package. The top exit variant is a component encoder with the cable assembly integrated separately to the readhead, making the ATOM DX top exit suitable for the smallest spaces.

Performance in speed

Speed pictogram

ATOM DX encoders offer maximum speeds up to 20 m/s and a range of high-speed interpolation options.

Performance in velocity control

Sub-Divisional Error (SDE) pictogram

ATOM DX incorporates Renishaw's latest interpolation technology, with updated signal processing algorithms to reduce Sub-Divisional Error (SDE). This helps to reduce velocity ripple and improve closed loop feedback in motion control systems.

Find your ATOM DX scale option

Linear

Scale typeScale nameAccuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Scale max length

Glass spar

RCLC scale

RCLC

±3 µm 20 µm/40 µm~8 µm/m/°CUp to 130 mm

Stainless steel tape

RTLF20 scale

RTLF

20 µm: ±5 µm/m

40 µm (high accuracy): ±5 µm/m
40 µm: ±15 µm/m

20 µm/40 µm ~10.1 ±0.2 µm/m/°C

Up to 10 m (> 10 m on request)

Narrow stainless steel tape

RKLF linear scale
RKLF-S

20 µm: ±5 µm/m

40 µm (high accuracy): ±5 µm/m

40 µm: ±15 µm/m

20 µm/40 µm

Matched to substrate material when scale ends are fixed with end clamps

Up to 10 m (> 10 m on request)

Partial arc

Scale type

Scale name

Accuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Scale max length

Narrow stainless steel partial arc tape

RKLF partial arc scale
RKLF-S

±15 µm/m


40 µm

Matched to substrate material when scale ends are fixed with end clamps

Up to 10 m (> 10 m on request)



Rotary

Scale type

Scale name

Graduation accuracy

Scale pitch

Coefficient of thermal expansion at 20 °C

Ring diameter

Glass disc

RCDM scale

RCDM

±0.5 µm

20 µm/40 µm ~8 µm/m/°C 17 mm to 108 mm

CENTRUM™ stainless steel disc

CENTRUM™ CSF40 scale disc

CSF40±0.5 µm40 µm15.5 ±0.5 µm/m/°C38.4 mm to 120 mm