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QUANTiC™ encoder series

The QUANTiC encoder system integrates Renishaw's filtering optics design and interpolation technology to create a super-compact, robust, incremental open optical encoder. QUANTiC encoders are easy to use with exceptionally wide installation and operation tolerances, along with built-in calibration functions.

QUANTiC readheads offer digital output and a new analogue output variant with a wide variety of configurations and linear or rotary scale options.

Detailed diagnostic information can be accessed by using the ADTpro-100 standalone encoder diagnostic tool and the ADTi‑100 diagnostic tool, both of which are compatible with the ADT View software. They aid optimisation of encoder installation and in-field fault finding to satisfy the most demanding motion control applications.

Robust position measurement over contamination

Reliability pictogram

QUANTiC readheads ensure excellent motion control performance in a wide range of applications by minimising positional error over scale contamination. A new detector design provides an additional layer of signal filtering which helps to eliminate non-harmonic signal frequencies, ensuring low Sub-Divisional Error (SDE) and minimal signal variation over dirt or contamination on the scale.

Easy installation and set-up

Easy installation pictogram

The advanced optical design and signal processing of the QUANTiC encoder provides increased installation and operational tolerances whilst maintaining metrological performance. Low cost of ownership is achieved through reduced installation and set-up times.


Decorative image representing speed

Speeds up to 24 m/s can be achieved to meet the most demanding motion control requirements.

Clocked output option (MHz)

Maximum speed (m/s)

Minimum edge separation* (ns)


(10 µm)


(5 µm)


(1 µm)


(0.5 µm)


(0.2 µm)


(0.1 µm)


(50 nm)

4024 242414.505.802.9001.45031.6
2524 2418.13 9.063.631.8130.90651.0
1024 248.534.271.710.8530.427109
0624 245.372.691.070.5370.269174
019.064.530.91 0.450.180.0910.0451038
Analogue output

20 (-3dB)

*For a readhead with a 1 m cable

Find your QUANTiC scale option


Scale type

Scale name


Scale pitch

Coefficient of thermal expansion at 20 °C

Scale max length

Stainless steel tape with track option


RTLC40 with optional FASTRACK™

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

40 µm

10.1 ±0.2 µm/m/°C

10 m (> 10 m on request)

Narrow stainless steel tape scaleRKLC20 linear scale


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

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

20 m (> 20 m on request)

Partial arc

Scale type

Scale name


Scale pitch

Coefficient of thermal expansion at 20 °C

Scale max length

Narrow stainless steel partial arc scale

RKLC partial arc scale


40 µm: ±15 µm/m40 µm

10.1 ±0.2 μm/m/°C

20 m (> 20 m on request)


Scale type

Scale name

Graduation accuracy (depending on ring diameter)

Scale pitch

Coefficient of thermal expansion at 20 °C

Ring diameter

Stainless steel ring



±3.97 to ±0.38 arc seconds

40 µm

15.5 ±0.5 µm/m/ °C

52 to 550 mm

Optional Advanced Diagnostic Tools

The Advanced Diagnostic Tools assist in system set-up and planned maintenance to help minimise unscheduled machine downtime.
ADTi-100 and ADTpro-100 Advanced Diagnostic Tools

The ADTpro-100 is a handheld, standalone encoder diagnostic tool featuring an integral colour touch screen. The ADTpro-100:

  • Requires no computer or additional set-up equipment to display comprehensive real-time encoder information.
  • Is easy and intuitive to use with plug-and-play functionality to aid system set-up and calibration.
  • Interfaces with the optional ADT View computer software, which allows encoder data to be saved as a record of the system setup and performance. ADT View can also be used to update the ADTpro-100 firmware

The ADTi-100, in conjunction with the intuitive ADT View computer software:

  • Provides comprehensive real-time encoder data feedback to aid more challenging installations and diagnostics.
  • Assists system set-up, calibration and signal optimisation along the entire axis.
  • Allows data, such as signal strength vs position along the axis, to be saved as a record of the system setup and performance.

Both the ADTpro-100 and ADTi-100 are ideal for aiding system optimisation and diagnostics, particularly for installations when the readhead LED is not visible. They can be used standalone or in-line, connected between the readhead and the controller as part of the control loop.