Application      Up
The Z3 captor is a hot metal detector used in monitoring the presence of stocks over 400°C. Presented in a resistant case, it is designed for use in the arduous conditions to be found in the steel industry.

Introduction      Up
Z3 is a self-contained sensor including:

• a power supply unit with transformer
• an optical unit equipped with a germanium receiving diode
• an amplifier with either relay-operated or static output or thyristor output
• a connecting unit with either terminal plate or connector

Working Principle     Up
The radiation of the hot stock is focused by a lens and then collected by a photo-electric cell which is part of a temperature-compensated opto-electronic bridge. The current which then appears in the cell puts the bridge out of balance and allows the detector to send out an all-or-nothing signal when a product is within its optical field.

Special Features    Up

• Optical field: 15° vertical, 4° horizontal
• External sensitivity adjustment (located under the cover at the back side of the apparatus)
• Jack-plug for adjusting the aim (located under the cover at the back side of the apparatus)
• Switching test lamp
• Hinged frontal section which fold downwards in order to make cleaning of the optical parts easier. This component is equipped with an inlet for compressed air, designed to keep out dust
• A cooling flange is available, with a water circulation rate of 2 I/mn, for use when ambient temperature is over 50°C
• Modular construction, allowing rapid maintenance
• Available with thyristor output (2 wires), with power supply in the range 80 to 250 V ~

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