Teledictor 4618

Key advantages

• Monitors variations in ferrous and non-ferrous metals.
• Detects differences in chemical composition and metallurgical structure.
• Verifies heat treatment, case hardening and dimensions.
• Bench-top use or integration into new and legacy process control systems.
• Interfaces to automatic test systems, feed conveyors and sorting gates.
• High speed digital outputs to a PLC or directly to a mechanical segregator.
• Familiar impedance plane display with independent X and Y gain and gate configuration.
• Lightweight, compact and rugged construction with a crisp, daylight-viewable screen.

Principle of operation

The Teledictor is a single frequency instrument operating from 10Hz to 500kHz (low frequencies are used for ferrous products). It compares the electromagnetic properties of a test sample with a known good component – the standard. Two coils, each with primary and secondary windings, are energised at the test frequency. When a part with the same properties as the standard enters the second coil, the system is in balance; any difference in material, structure, hardness or size changes the phase and amplitude and is shown as an “out of balance” condition, triggering a reject.