INDUSTRIAL Metal Detectors

THS/PLV21 series

Pass-through with ejection valve integrated system for liquid and viscous products


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  • Detection and ejection of magnetic, non-magnetic and stainless steel metal contaminants
  • Very high sensitivity. Multi spectrum technology available
  • Standard pipe sizes available to suit all applications
  • Fast acting reject device for a limited quantity of rejected product
  • Control Panels are listed according to UL 508A and CSA-C22.2 No. 14-05
  • Wide range of flanges available for connection to bagging and clipping machines
  • Easy to clean and inspect
  • Minimum installation space required
  • Very High Reliability
  • Maximum Operator Safety
  • State-of-the Art Quality Control of liquid, viscous products and meat
  • Detection and ejection of magnetic, non-magnetic and stainless steel metal contaminants
  • Very high sensitivity. Multi spectrum technology available
  • Fast detection and rejection speed
  • Fail-Safe Operations
  • Structure and components in AISI 316L stainless Steel and food-compatible plastics (EU, FDA compliant)
  • Rugged, IP65/66/69 construction
  • Easy to disassemble and clean
THS/PLV21 series

Operator Manual

CEIA is a manufacturing company specialized in the design, engineering and production of Metal Detectors. The CEIA Integrated Systems are especially designed for the inspection of liquid, and viscous products and the elimination of any contaminating metals, whether magnetic, non-magnetic or stainless-steel.


THS/PLV21 series - detail

Flanges integrated with pipe for best cleanability

The CEIA integrated systems are especially designed for metal contaminant detection in products transported by pipeline especially meat, soup, preserves...
The carefully selected materials used in construction do not interact with food products, and thus do not modify or alter their composition. The design of these systems incorporates a fast reject valve drive response time to detect and reject the contaminant without slowing down the product flow.
The construction guarantees quick, easy cleaning of the components that are in contact with the product. The technological choices made by CEIA allow the parts in contact with the product to be disassembled and maintained in a short time.
The systems operate in fail-safe mode, thus avoiding the risk of contaminants passing through even when the system is deactivated or when the electrical power supply is interrupted.

Multi-Spectrum Technology

Exclusively developed by CEIA, this is a unique metal detection technology that both optimizes sensitivity to all metal contaminants and minimizes product effect in a very wide range of possible products.
By recognizing the different frequency response of conductive products and metals, this innovative technology cancels product effect and maintains high performance levels for all types of metal contaminants, both magnetic and non-magnetic.
The autolearn function used by CEIA Multi-Spectrum metal detectors equates to the repetition of hundreds of conventional transits. It explores the whole spectrum of available frequencies in order to determine the best operating conditions resulting in unique detection performance.


Download Specifications

Special features

  • Detection sensitivity
    • THS/XX21E : High
    • THS/XX21: Ultra High
  • Immunity to environmental interference
    • High
  • Data display type
    • THS/XX21E : Alphanumeric OLED - 4x20 characters
    • THS/XX21: High-contrast graphical OLED 128x64 pixels
  • Local programming
    • THS/XX21E : 4 keys, 3 with double function
    • THS/XX21: 16 keys, 3 with double function
  • Control Power Box or Conveyor Control System according to Standards UL 508A and CSA-C22.2 No. 14-05
    • on request
  • Construction compliant with 21 CFR Parts 210 and 211
  • All parts in contact with the product are in FDA approved materials for food contact
  • Audio and visual detection indicators
  • Display of the signal level by means of bar graph
  • Inspected/contaminated product counter
  • Autolearn and automatic tracking of the product effect
  • ISO 9001 certified manufacturer
Data management
  • Management of electronic production data and electronic signatures as per CFR 21, Part 11: Data security / Data integrity / Data traceability
Events storage
  • Complete monitoring of occurred events: Ejections / Test results / Programming accesses / Programming operations / Faults
I/O interfaces
  • RS232
  • Auxiliary RS232
  • BT wireless communication
  • Ethernet interface (on request)
  • WI-FI
  • USB (on request)
  • Acoustic: Via internal buzzer
  • Optical
    • Graphic display with bar-graph indication
    • Light indicators on control unit: RED: Alarm or Fault / GREEN: Power on
  • Local: built-in keyboard and high-contrast display
  • Remote: through computer connected via BT wireless communication, RS232, Ethernet or WiFi and managed with CEIA MD Scope software, THS Production Plus software or any other terminal emulation program or through Web Server (with optional IXC card)
Safety and security
  • Protection degree
    • THS/XX21E: IP65
    • THS/PLV21X and THS/PLVM21X: IP66 – IP69K
    • On UL versions, the Control Power Box and Conveyor Control System have a 4X-12 certified degree of protection
  • Electrical insulation
    • Galvanic isolation of the mains voltage
    • Compliant with international standards for safety and radio interference
  • Acoustic emission: Acoustic pressure according to Directive 2006/42/EC: <70 dB(A); <130 dB(C)
  • Pollution degree: (IEC61010-1) Class 2
  • Installation category: (IEC61010-1) Category II
  • Control Power
    • Box Main voltage: 100-240 VAC
    • Frequency and phase: 50/60 Hz - single phase
    • Full load current (FLA): 2.2 A
  • Pneumatic system
    • Stainless steel waterproof container (protection degree: IP66 – IP69K)
    • Pressure: 0.6 ÷ 1 MPa
    • Flow: 100 l/min
Environmental conditions
  • Temperature
    • Operating: -10 to +55 °C
    • Storage
      • -25 to +55°C (THS/PLV 21x - THS/PLVM 21x); 70°C for short periods, 24h max
      • -40 to +70°C (THS/PL 21x)
  • Relative humidity
    • Operating / Storage
      • 5 – 90 %, non-condensing
Product conditions
  • Maximum temperature (for higher temperatures, contact CEIA)
    • Product in transit
      • 70°C (THS/PLV 21x)
      • 60°C (THS/PLVM 21x)
    • Inside the rejected material bin: 70°C
  • Maximum allowed pressure (for higher pressures, contact CEIA)
    • Transit pipe
      • 1 MPa (THS/PLV 21x - THS/PLVM 21x)/li>
      • 1 MPa with product up to 60°C (THS/PL 21x)
      • 0.6 MPa with product up to 90°C (THS/PL 21x)