EMG SMI2.11.3 Electronic Unit

Manufacturer: EMG
Product Numbers: SMI2.11.3
Product Type: Electronic Unit
Place of 0rigin: Germany
Input Voltage: 24 V DC (allowable fluctuation -15% / +20%)
Rated Current: 2 A
Communication Interface: CAN Bus
Communication Protocol: CANopen
Measurement Principle: High-frequency inductive sensing (non-contact)
Sensor Compatibility: SMI-SE (transmitter) and SMI-HE (receiver)
Detection Material: All conductive metals (ferromagnetic and non-ferromagnetic, such as steel, aluminum, and copper)
Housing Material: Die-cast aluminum (typically integrated within the SMI 1.05 junction box)
Operating Temperature: Maximum 50°C (122°F)
Protection Rating: IP 65 (when installed in a standard enclosure)

The EMG SMI2.11.3 is an electronic unit designed for high-precision strip center measurement in industrial environments, compatible with SMI-SE transmitters and SMI-HE receivers. Operating on 24 V DC (allowable fluctuation -15% / +20%) and drawing a rated current of 2 A, it communicates via CAN Bus using the CANopen protocol. The unit generates regulated sinusoidal alternating voltage to the emitters, creating distinctive electromagnetic fields that are detected by the receivers, providing accurate analogue output signals corresponding to strip edge positions. Housed in die-cast aluminum and typically integrated within the SMI 1.05 junction box, it offers IP65 protection when installed, with reliable operation up to 50°C.
The SMI2.11.3 employs a high-frequency inductive sensing principle, enabling non-contact measurement of all conductive metals, including ferromagnetic and non-ferromagnetic materials such as steel, aluminum, and copper. The dual-sensor arrangement on each strip edge ensures precise centering as the strip passes between the sensors. Advanced self-test functions monitor the system, combining individual signals into “sensing system OK” and “strip detected” outputs. The modular sensor design, improved symmetry, and resistance to external interference enhance measurement accuracy, making the SMI2.11.3 ideal for demanding applications requiring maintenance-free, stable, and precise strip positioning.

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