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About this Manual#

Validity#

This manual provides all the necessary information for the safe use of the radar sensor with analog current and voltage as well as IO-Link interface.

Product identification

Type: BRS S–M30S04–0301–LA2–000S04
Order code: BRS0002

Read this manual and all related documents completely before installing and operating the product.

Original Operating Manual

This manual was originally created in German. Other language versions are translations of this manual.
© Copyright 2025, Balluff GmbH Zabergäustraße 8, 73765 Neuhausen auf den Fildern
All content is protected by copyright. All rights, including reproduction, publication, editing, and translation, are reserved.

Further information about this product can be found at www.balluff.com on the product page, e.g., in the following documents:

  • Data sheet
  • Declaration of conformity
  • Disposal

Used Symbols and Conventions#

Individual instructions are indicated by a preceding triangle.

► Instruction

Sequences of actions are shown as numbered steps:
1. Step 1
2. Step 2

Numbers without further designation are decimal numbers (e.g., 23). Hexadecimal numbers are indicated by a leading 0x (e.g., 0x12AB).

Note, Tip

This info box indicates general notes.

Meaning of Warning Notices#

Be sure to observe the warning notices in this manual and the described measures to avoid hazards.

The warning notices used contain different signal words and are structured as follows:

SIGNAL WORD

Type and source of hazard
Consequences if the hazard is ignored

► Measures to avert the hazard

The signal words mean the following:

CAUTION

Indicates a hazard that may lead to damage or destruction of the product.

WARNING

The general warning symbol in connection with the signal word WARNING indicates a hazard that may lead to minor or moderate injuries.

Used Technical Terms and Abbreviations#

Technical Terms#

  • Blind zone
    Area in which objects cannot be detected.
  • Dielectric constant
    Ratio of the electric field strength in a vacuum to the field strength in the material. The higher the dielectric constant, the better an object can be detected by the sensor.
  • EMC (Electromagnetic Compatibility)
    Ability of a device to operate without interference in an electromagnetic environment.
  • Detection range
    Area in which objects can be detected.
  • FMCW (Frequency-Modulated Continuous Wave)
    Method for distance measurement using frequency-modulated radar signals.
  • IO-Link
    Standardized interface for communication between sensors/actuators and automation systems.
  • IP69K
    Degree of protection against dust and high-pressure/steam jet cleaning.
  • Purdue Level 0
    Level of the Purdue reference architecture for industrial automation systems.
  • Radar reflex gate mode
    Operating mode of the sensor that works even with poor reflection properties of the target object, as long as there is a reflective surface behind the object to be detected.
  • Radar cross section
    Measure of the reflection of radar signals by an object.

Abbreviations#

  • BRS
    Balluff Radar Sensor.
  • BSI
    Federal Office for Information Security (Germany).
  • CE
    Conformité Européenne, EU conformity marking.
  • CISA
    Cybersecurity and Infrastructure Security Agency.
  • dB
    Decibel, measure of signal strength.
  • EN
    European Standard.
  • ERP/EIRP
    Effective radiated power (ERP) / Effective isotropic radiated power (EIRP).
  • Hz
    Hertz, unit of frequency.
  • IEC
    International Electrotechnical Commission.
  • kHz
    Kilohertz, 1,000 Hertz.
  • mA
    Milliampere.
  • NIST
    National Institute of Standards and Technology.
  • VDC
    Volts direct current.