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SE-37A Ultrasonic Edge Sensor

Insensitive to ambient light; accurate on opaque and transparent materials
High control accuracy with a 4 cm proportional band and fine resolution
IP65 protection for spray/condensation environments
Compact fork design with integrated LED position indication
Simple calibration for acoustically permeable materials
Works singly for edge guiding or as a pair for centerline guiding

SE-37A Ultrasonic Edge Sensor Overview

The Fife SE-37A Ultrasonic Edge Sensor delivers precise, stable web guiding performance in applications where optical sensors may be limited by lighting or contrast conditions. Using ultrasonic technology, the SE-37A can accurately detect web edges on both transparent and opaque materials, even in environments with high ambient light or reflective surfaces.

The SE-37A offers enhanced accuracy, a compact fork form factor, and simple calibration capabilities. Whether used for single-edge control or dual-sensor centerline guiding, it helps ensure consistent product quality and reduced waste.

The SE-37A extends the capabilities of the trusted SE-37 platform with advanced features such as improved resolution, a compact fork design, and an integrated LED position display for quick visual alignment. For customers maintaining existing installations, the SE-37 remains fully supported and available. For those planning upgrades or new installations, the SE-37A provides added precision and ease of use.

Engineered for High-Speed, Precise Web Guiding

The SE-37A combines durability with the fine resolution needed for modern converting and packaging lines. Engineering highlights include:

Ambient-light immunity for stable readings in bright or changing light conditions
4cm proportional band for high control accuracy and responsiveness
Fork-style housing for easy alignment and installation
Integrated LED position indicator for quick visual status checks
IP65 environmental protection to resist spray, dust, and humidity

Key Benefits

Low-contrast champion — reads faint lines reliably on varied substrates.
Transparent film ready — detects film edges even when background contrast is poor.
Production-tough — IP67 protection; insensitive to electrostatic discharge.
Long service life — LED illumination designed for ~100,000 hours.
Lightweight & compact — ~100 g sensor with straightforward bracket mounting.

Common Applications

Converting, laminating, coating, and slitting
Flexible packaging & film processing
General web handling—edge and centerline (dual-sensor)

System Compatibility

Controllers: D-MAXE Web Guiding Controller and DP-20 Plus Operator Interface for setup and visualization
Actuation: Fife SmartDrive Actuator for closed-loop control
Typical configuration diagrams: Single-sensor for edge guiding; dual-sensor arrangement for centerline guiding

Request a Quote

Optimize your line with SE-37A. Contact Maxcess to speak with an applications engineer or request a quote.

Sensing Principle	Ultrasonic edge detection (fork)
Proportional Band	4 cm
Resolution	0.001 mm
Linearity Deviation	±1.1%
Supply / Current	12 VDC, 80 mA
Output	0–10 mA (RL ≤ 100 Ω)
Operating Temperature	41–140 °F (5–60 °C)
Temp Variation	±2.5% within operating range
Ingress Protection	IP65
Indicators	LED position display (both sides)
Mounting	Fork body with M4 mounting (see drawing)
Weight	~280 g