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  • Engineered for the monitoring of full-sized timber logs
  • Low maintenance with automatic balance and calibration control
  • Sturdy stainless steel design: extra rugged and with short metal-free zone
  • Highest sensitivity with 4-quadrant technology
  • Intuitive control and easy installation with automatic calibration and TeachAssistant


  • 4-Quadrant technology provides maximum detection performance with the highest available reliability in the detection space
  • Simple setup with TeachAssistant
  • Memory for up to 250 products
  • Easy to use with intuitive and multilingual menus
  • Password protection with permission management

  • Optional: data transfer to USB interface or connection to the company network via SHARKNET® software  
  • Cyclical function monitoring with Performance Validation System (PVS) 
  • Resilient to adverse environmental conditions such as high and low temperatures  
  • Documentation of all events and metal detection alerts


The METAL SHARK® OCTA was developed specifically for industrial use in forestry and sawmills. Its octagonal shape makes it ideal for monitoring logs for metal contamination caused by screws, nails or tools.

It is typically installed with troughed belt conveyors.

By means of the 4 quadrant technology it detects magnetic and non-magnetic metal contaminations (iron, stainless steel, aluminum etc.) accurately and reliably even in challenging conditions.

Delivery Scope

  • OCTA detection unit
  • METAL SHARK® control unit in stainless steel housing


  • Protection of tools and machines from metal items such as nails or screws
  • Monitoring of particularly large products, particularly timber logs
  • Monitoring of bulky goods on troughed belt conveyors


Electronics Digital signal processor, digital frequency generation, digital balance control, automatic calibration, digital noise filters, integrated flexible control functions
Input 2 analog 0 ...10 V DC (option: 4-20 mA)
8 freely configurable 24 V DC signals, e.g. for rotary encoders, product recognition, buttons
Output 2 floating: “error” and “metal”
8 freely configurable 24 V DC signals
Inspection Method High-frequency magnetic field, multi-channel operation, balanced receiver coils
Metal Detection Ferrous, non-ferrous (e.g. tombac, brass, bronze, aluminium, lead, etc.) and stainless steel
Product Compensation 250 memory locations, TeachAssistant
Protection Type IP54
Ambience Standard: -20°C to +40°C / -4°F to 104°F, rel. humidity 20% up to 90%, non-condensing
>95% rel. humidity (condensing) with controller casing closed
Product Temperature Up to +70°C / +158°F
Power Supply Single phase 110-240 V AC +/- 5%, typical consumption 20 W (60 W max.)
Interface RS232, LAN (optional, for SHARKNET®), USB (optional
Maintenance Very low maintenance, self-calibrating sensors
Diagnostics Integrated diagnostic software, automatic self-test
Conformity CE

Accessories & Extras

  • Xenon flashing lights
  • Acoustic signal generator (horn)
  • SHARKNET® access for perfect documentation and device monitoring from a PC
  • Control unit can be mounted separately (e.g. wall mounting)
SHARKNET® The SHARKNET® software connects METAL SHARK® metal detectors with a central computer, providing centralized storage of all operating data plus batch and alert documentation as well as remote control via a PC.
Super Power Drive (SPD) Improves metal detection by -0.5 to -1 mm in industrial environments that do not meet electromagnetic compatibility standards, optionally with different IP protection classes and ATEX zone 22.
Flashing light, XENON Very bright and eye-catching alarm light, 24 V DC, IP 65, RB 10-100 V, 2 W, suitable for mounting on stand or wall mounting.
Alarm horn Emits a very loud alarm sound, 24 V DC
Suitable for mounting on stand or wall mounting
Flashing light + horn on stand Acoustic and visual alarm on stand, stainless steel,
with bright red Xenon flashing light and horn for conveyor mounting