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Unit of Measure

Specifications

Measurement Range

 N/A 500 µm
Measuring Range (Option)1 N/A 250 µm

Offset

 N/A 100 µm
Offset (Option)2 N/A 50 µm

Linearity

 N/A ± 2 µm

Resolution

 N/A 0.5 µm

Frequency Response

 N/A 2000 Hz

Target

 N/A Ferromagnetic Non-Ferromagnetic

Sensor Operating Temperature

 N/A 0 to 90 ºC

Controller Operating Temperature

 N/A 10 to 70 ºC
Sensor Temperature Stability3 N/A ± 150 ppm FSO/ºC (MMR)
Controller Temperature Stability4 N/A ± 500 ppm FSO/ºC (MMR)

Sensor Temperature Compensation Range

 N/A 10 to 80 ºC

Controller Temperature Compensation Range

 N/A 10 to 70 ºC

Direct Current (DC) Supply Voltage

 N/A 12 to 32 V
Analog Out Displacement5 N/A 0.5 to 9.5 V - 100 to 600 µm (option 50 to 300 µm)

Analog Out Temperature

 N/A 0.5 to 9.5 V (0 to +90 ºC)

Sensor Protection Class

 N/A Ingress Protection (IP67)

Controller Protection Class

 N/A Ingress Protection (IP67)

Dimensions EMU04 (100)

 N/A 12 x 10 x 4.5 mm³

Dimensions EMU04 (120)

 N/A 10 x 4 x 4 mm³

Sensor Cable Diameter

 N/A 1.13 mm
Sensor Cable Length6 N/A 1000 mm

Minimum Sensor Cable Bending Radius

 N/A 12 mm

Sensor Cable Coating

 N/A FEP

Note for Sensor Cable

 N/A Detailed cable specifications can be found in the operating manual.

Additional Information

N/A Measuring Thermal Extension in Spindles
The displacement measurement system SGS4701 (Spindle Growth System) has been developed specifically for high speed milling machine applications. Due to high machining speeds and the heat generated, the linear thermal extension of the precision machine tool spindle needs to be compensated for in order to keep the tool in a defined position at all times. The SGS sensor measures the thermal and centrifugal force extension of the spindle. These measurement values are fed into the CNC machine tool as correction values, compensating for any positioning errors.

The SGS4701 operates on the eddy current measuring principle. This non-contact measurement is wear-free. Furthermore, the measurement procedure is resistant to disturbances such as heat, dust and oil.

System Structure
The SGS4701 consists of a sensor, a sensor cable and a controller, factory calibrated for ferromagnetic and non-ferromagnetic measurement objects. Two miniature sensors enable it to be installed directly in the spindle, where the measurements take place, typically on the labyrinth-ring of the spindle. As well as measuring linear thermal extension, the temperature of the sensor is also detected and output. The compact controller can be installed on the spindle housing via a flange or directly in the spindle.

Features

N/A

  • Cost-effective design
  • Miniature sensor design
  • Miniature, compact controller
  • Sensor technology can be integrated completely into the sensor
  • Suitable for ferromagnetic and non-ferromagnetic materials
  • Temperature measurement integrated in the sensor

Note

N/A Resolution : Static, MMR.

  • 1 For OEM modifications: sensor with measuring range 250 µm.
  • 2 For OEM modifications: sensor with offset 50 µm.
  • 3 FSO = Full Scale Output; MMR = Midrange.
  • 4 FSO = Full Scale Output; MMR = Midrange.
  • 5 For OEM modifications: sensor with measuring range 250 µm and offset 50 µm.
  • 6 400 to 1500 mm on request.