Diameter gauge LN30 series

opticalindustrialRS-232C

Overview
The LN Series from Nordson is a three-axis lump & neckdown gauge designed for precise detection of short-term diameter faults on extruded products at high line speeds. Three optical axes spaced at 60° increase circumferential coverage to detect sudden surface changes on wires, cables, hoses, tubes and similar extruded profiles.

Features & Benefits

• Accurate flaw capture and reporting – records flaw height, length, count and position for traceability and process control.
• Comprehensive communications – RS232, Telnet, EtherNet/IP, Ethernet, DeviceNet, Profibus and Profinet for easy integration.
• Built-in diagnostics – per-axis signal checks to maximize uptime and monitor gauge health.
• Operator visualization – color-coded status indicators for rapid fault awareness.
• Reel-change synchronization – accepts reel changer signals to clear and initialize data between reels.
• Rugged construction – sealed metal housing minimizes light and dust contamination for reliable operation.
• Integrated operator interface – on-board display eliminates need for external monitor.

Models
Models: LN3015-P | LN3040-P
Number of axes: 3 | 3
Product diameter: 0.02–15 mm (0.0008–0.6 in.) | 0.04–40 mm (0.0016–1.57 in.)
Gate size: 18 mm (0.71 in.) | 48 mm (1.89 in.)
Minimum detectable flaw height: 0.02 mm (0.0008 in.) | 0.05 mm (0.0020 in.)
Maximum flaw height: 2 mm (0.08 in.) | 10 mm (0.40 in.)
Minimum flaw length: 0.5 mm (0.02 in.) | 0.5 mm (0.02 in.)
Accuracy: Greater of either: ±0.011 mm (±0.0004 in.) or ±3% max flaw height | Greater of either: ±0.018 mm (±0.0007 in.) or ±3% max flaw height
Scan rate: 250,000 scans/sec/axis | 250,000 scans/sec/axis
Maximum line speed: 3000 m/min (9,842 ft/min.) | 3000 m/min (9,842 ft/min.)

Technical specifications

• Series: LN3000
• Available models: LN3015-P, LN3040-P
• Optical axes: 3 (spaced at 60°)
• Product diameter range: 0.02–15 mm (LN3015-P); 0.04–40 mm (LN3040-P)
• Gate sizes: 18 mm (LN3015-P); 48 mm (LN3040-P)
• Min detectable flaw height: 0.02 mm (LN3015-P); 0.05 mm (LN3040-P)
• Max flaw height: 2 mm (LN3015-P); 10 mm (LN3040-P)
• Min flaw length: 0.5 mm
• Accuracy: model-dependent, greater of fixed micrometer value or ±3% max flaw height
• Scan rate: 250,000 scans/sec per axis
• Max line speed: up to 3000 m/min
• Communications: RS232, Telnet, EtherNet/IP, Ethernet, DeviceNet, Profibus, Profinet
• Diagnostics and visualization: built-in per-axis diagnostics and color-coded status
• Housing: sealed metal enclosure to reduce light and dust contamination
• Operator interface: integrated, no external display required

Typical applications

• In-line inspection of extruded wire and cable for lumps and neckdowns.
• Quality control for extruded hoses, tubes and profiles.
• High-speed extrusion lines requiring rapid detection and reporting of diameter defects.