Emitter Unit for Safety Sensor Systems | Specifications & Verification

Product Specifications

Technical details and manufacturing context for Emitter Unit

Definition

The Emitter Unit is a critical component of safety sensor systems, responsible for generating and transmitting signals, light beams, or other forms of energy that are detected by corresponding receiver units. It plays a fundamental role in creating detection zones, monitoring presence, and triggering safety responses in industrial environments. The unit typically consists of an aluminum alloy housing, an optical glass lens, a semiconductor laser diode, and an electronic circuit board. It operates at a nominal voltage of 24 V DC (±10%) per IEC 61131-2, with a current consumption of 20–50 mA at 24 V DC. The detection range is adjustable from 0.1 to 5 meters via a sensitivity control, and the response time is ≤10 ms for safety applications. The unit is designed to operate in temperatures from -40 to 85 °C, with storage temperature also -40 to 85 °C, and humidity up to 95% RH non-condensing. It offers ingress protection ratings of IP65 to IP67, and the housing material is flame-retardant PBT (UL 94 V-0). The weight ranges from 50 to 150 g, and dimensions vary from 30×30×15 mm to 60×60×30 mm. Connection is via a 4-pin M12 connector per IEC 60947-5-2. These specifications are reference ranges; actual values must be confirmed with the manufacturer for the specific model and application. The emitter is used in safety sensor systems to create a detection zone; when an object interrupts the signal path, the system triggers safety measures. It is essential to verify that the emitter's specifications match the requirements of the safety system and the environment. Always consult the manufacturer's documentation for precise data and compliance with applicable standards.

Working Principle

The emitter generates a continuous or pulsed signal (typically infrared light, laser, ultrasonic waves, or radio frequency) that is directed toward a receiver. When an object interrupts this signal path, the safety system detects the break and initiates appropriate safety measures such as machine shutdown or alarm activation. The emitter's output is designed to be reliably detected by the receiver, and the system's response time is critical for safety. The detection range can be adjusted to suit the application, and the unit is designed to operate in industrial environments with specified temperature, humidity, and protection ratings.

Common Materials

Aluminum alloy housing, Optical glass lens, Semiconductor laser diode, Electronic circuit board

Technical Parameters

Parameter	Typical range	Notes & selection driver
Operating Voltage	24 ±10% V DC	Outside range may cause malfunctionIEC 61131-2
Current Consumption	20–50 mA	Typical at 24 V DC
Detection Range	0.1–5 m	Adjustable via sensitivity controlIEC 60947-5-2
Response Time	≤10 ms	Faster for safety applications
Operating Temperature	-40–85 °C	Outside range may degrade performanceIEC 60068-2-1/2
Storage Temperature	-40–85 °C	Non-operating conditionIEC 60068-2-1/2
Humidity	0–95 % RH	Non-condensingIEC 60068-2-78
Ingress Protection	IP65–IP67	Higher IP for harsh environmentsIEC 60529
Housing Material	PBT	Flame retardantUL 94 V-0
Weight	50–150 g	Depends on housing size
Dimensions (L×W×H)	30×30×15–60×60×30 mm	Compact design for easy integration
Connection Type	M12	4-pin connectorIEC 60947-5-2

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Laser Diode
Generates the coherent light beam for detection

Material: Gallium arsenide semiconductor
Collimating Lens
Focuses and directs the emitted beam into a parallel path

Material: Optical glass
Driver Circuit
Controls and regulates power to the light source

Material: Printed circuit board with electronic components
Housing Part
Protects internal components and provides mounting interface

Material: Anodized aluminum alloy
Connector Part
Provides electrical connection to power and control systems

Material: Plastic with metal contacts

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Safety Sensors

View system integration details

Manufacturers of Emitter Unit

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Frequently Asked Questions

What is the operating voltage of the Emitter Unit?

The nominal operating voltage is 24 V DC with a tolerance of ±10%, per IEC 61131-2. Always verify the exact voltage requirements for your specific model.

What is the detection range of the Emitter Unit?

The detection range is adjustable from 0.1 to 5 meters via a sensitivity control, per IEC 60947-5-2. The actual range depends on the model and environmental conditions.

What are the environmental limits for the Emitter Unit?

The operating and storage temperature range is -40 to 85 °C, and humidity up to 95% RH non-condensing. Ingress protection is IP65 to IP67. Confirm these ratings for your specific model.

How is the Emitter Unit connected?

It uses a 4-pin M12 connector per IEC 60947-5-2. Ensure the connector type and pinout match your system's requirements.

Data Basis

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Preliminary Technical Classification

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pressure:	0 to 10 bar
temperature:	-40°C to +85°C
signal range:	1 to 100 meters
operating frequency:	10 kHz to 1 MHz

Emitter Unit

Product Specifications

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