Tunnel metal detector METRON 05 C
The METRON 05 C tunnel metal detector with the integrated control unit is used to detect metal particles in products transported on the conveyor belts. In addition to the belt conveyor, this tunnel metal detector can also be installed on a vibrating feeder or a material chute.
Don't you know how to easily and quickly install a metal detector on an existing conveyor? We have a solution for you and that is: 2-piece demountable METRON 05 D tunnel detector
Principle advantages of a tunnel metal detector
- Metal detector for installment on the conveyer belt, vibrating feeder, material chute or throughs man hole.
- All metals both free and hidden in the material are detected
- Practical, reliable and by running of many years proven technology.
- Maximum level of exactness of detection even in the rough conditions of industry
- Preservation of valuable production technology and monitoring of porduction processes.
- Made-to-measure solutions with the interconnection with a reliable transport system and a discarding option.
The METRON 05 C tunnel metal detector is:
- Reliable – in process and detection
- Durable – in technology and performance
- Flexible – in size and use
Optional equipment
The METRON 05 C detectors can be supplied with a wide range of additional equipment:
- Signal units – beacon, buzzer, beacon with siren
- Remote reset of the device
- Conveyor control – reverse operation of the conveyor
- Visual marking of the detected contaminants = color coding
- Reject systems – pusher (= reject arm), plough (= diverter), carriage retract band, flap, stop on detect (SOD)
- SW modifications according to your needs – data transfer, specific check operations
Special design
Do you have special requirements for a metal detector design? The most common requirements include:
- Detection head and control unit housing in stainless steel design
- Ingress protection code: IP 65
- Units painted to customer specific color code
- Special power supply and termination boxes etc.
- Designed for use even at high temperatures
- ALUTRON version – suppression of interference signals from metalized foils – Patent No. 4342826
Dimensions
| LH: Aperture height (mm) | LB: Aperture width (mm) | SH: Thickness | SL: Detector length (mm) |
|---|---|---|---|
| 200 | Optional | 115 | 400 |
| 300 | Optional | 115 | 500 |
| 400 | Optional | 115 | 600 |
| 500 | Optional | 115 | 700 |
| 600 | Optional | 115 | 750 |
| 700 | Optional | 115 | 800 |
| 800 | Optional | 120 | 850 |
| 900 | Optional | 120 | 900 |
| 1000 | Optional | 120 | 1000 |
| > 1000 | Optional | 120 | 1200 |
Metal free zone - MFZ
It is essential for the proper metal detector functioning that there are no fixed (e.g. conveyor structure, its covering) or moving metal parts (e.g. conveyor rollers) in the proximity of the detector’s aperture. Therefore, the MFZ is defined for each detector and it should not contain moving or fixed metals. The aperture of the metal detector is to be placed in the middle of this metal free zone. When you observe the MFZ when installing the detector, you will prevent false alarms and false detections and contribute to the correct detector operation.
Contact us – we will help you with the MFZ calculation for moving and fixed metals.
Sensitivity of a metal detector
The detector's sensitivity depends on many parameters, such as the aperture dimensions (the lower is the aperture height, the higher is the detector sensitivity), the conveyor belt speed, the density of the product, its temperature and humidity, etc.
Maximum obtainable sensitivity can be established by testing your product sample in our laboratory. We will perform these tests free of charge. Please contact us, we will discuss the test execution as well as the dispatch of your material samples.
The sensitivity diagram of the METRON 05 D detector applies to LB 1,5 x LH
AMD 05 Control unit
A first-rate control unit is essential for the proper functioning of any detector. Our control unit is made with an emphasis on the high quality of workmanship and of the employed components.
The result is a stable control unit with a wide range of functions (just to name a few):
- Auto-balance including the suppression of interfering signals and automatic sensitivity calibration
- Multi-filter system using digital filtration for maximum stability in harsh environments
- Self-monitoring system ensures that all important components function properly
- Touch screen control panel – modern design
- Easy 4-button intuitive operation
- 5-line LCD display
- Product storage memory backup – for up to 500 products
- Metal detector network and remote service - diagnostics, parameter change, SW update
Scope of delivery
The delivery of METRON 05 D detectors includes:
- Detection head
- Control unit
- Connecting cables
- User manual
Datasheet
- Power supply: 100 – 240 V AC, 50/60 Hz
- Current consumption: max. 50 W
- Type of protection: IP 54
- Min. working temperature: - 10 °C
- Max. working temperature: + 50 °C
- Relative air humidity: 0 – 95 % (without condensation)
- Max. conveyor belt speed, at which metals can be reliably detected: 30 m/s (higher speed version available on request)
- Power cable: 1.8 m with plug
The METRON 05 C features an integrated control unit and is designed for both horizontal and vertical applications — making it suitable where the METRON 05 D falls short. Unlike the disassemblable METRON 05 D, the METRON 05 C is a one-piece unit and offers significantly smaller aperture heights starting from 50 mm. If you need installation on an existing conveyor without interrupting the belt, we recommend the disassemblable METRON 05 D.
The METRON 05 C can be installed on a conveyor belt, vibratory feeder, material chute, or drop shaft — in both horizontal and vertical orientations. This flexibility sets it apart from most tunnel detectors, which are designed exclusively for horizontal operation. We are happy to recommend the right solution for your specific application.
The aperture height (LH) ranges from 50 to over 1000 mm; the detector length is 260–1200 mm depending on the selected height, and the aperture width (LB) is customisable. The METRON 05 C reliably detects metals at conveyor speeds of up to 30 m/s. Sensitivity also depends on aperture height, material density, temperature, and moisture content.
The Metal free zone (MFZ) is a protective area around the detection head in which neither stationary nor moving metals — such as conveyor rollers or structural frames — may be present, as their presence causes false signals and unnecessary product rejection. The METRON 05 C requires an MFZ, and the aperture must be positioned at its centre. We will help you calculate the MFZ for both moving and stationary metals in your specific application.
The METRON 05 C achieves an IP 54 protection rating and operates in a temperature range of −10 °C to +50 °C at a relative humidity of 0–95 % (non-condensing). Maximum power consumption is 50 W at a supply voltage of 100–240 V AC, 50/60 Hz. For more demanding environments or higher temperatures, a special version with IP 65 rating and stainless steel construction is available.
The detector can be supplied with a warning device (beacon, buzzer), remote reset, conveyor reverse control, visual colour marking of contaminants, or automatic rejection systems (pusher, drop gate). An Alutron version is also available, which eliminates false signals caused by metallised film (patent no. 4342826), along with software modifications for data transfer and specific control operations.
Before purchase, we perform free material tests and guarantee results within three days. After ordering, we provide the full service cycle: on-site visit, measurement, custom manufacturing, installation, commissioning, operator training, and authorised service throughout the entire service life of the equipment.