Metal detector for the food industry Sentinel 1000 Selectscan

Product overview
The Thermo Scientific™ Sentinel™ family of metal detectors delivers high-sensitivity detection of ferrous, non‑ferrous and stainless steel contaminants for food, beverage and other product lines. Using Multiscan™ and Selectscan™ technologies, Sentinel detectors adapt to product effect, temperature and EMI to improve contaminant detection, support regulatory compliance and optimise production uptime.

Key models and short descriptions
Sentinel 5000 Multiscan: Multiscan platform scanning up to five user‑selectable frequencies to detect a wide range of sizes, shapes and metal types. Detects contaminants up to 50% smaller in volume versus the APEX 500; compatible with existing APEX 500 conveyor mounting for simple upgrades. Requires standalone infeed conveyor when used in combo configurations.

Sentinel 3000 Multiscan: More compact Multiscan model designed for integration in metal detection–checkweigher combination systems such as VersaWeigh™ and Versa GP. Reduces footprint while sharing program changes, alarms and rejection statistics. Detects contaminants up to 35% smaller in volume than the APEX 300.

Sentinel 1000 Selectscan: Selectscan technology rapidly identifies the single best frequency for an application, minimises product effect, compensates for temperature and EMI, and records results per production run for traceability.

Common features across all models

• Remote control panel mounting available
• Frequency range 50–1000 kHz; Multiscan runs up to five frequencies
• 7" high‑intensity touchscreen with Autolearn for fast set‑up
• Graphical phase, reject, quality test and threshold displays for tuning and troubleshooting
• IP69K rated for severe washdown and dust environments
• Integral electronics for flexible mounting
• Software‑implemented balance functions; no manual hardware rebalance required
• Wide ambient and product temperature ranges for reliable operation
• Fe, non‑Fe and 316 SS test pieces supplied to match application needs
• User interface available on both detector and checkweigher in combo systems

Models (catalog)
SENTINEL1000 — Sentinel 1000 Selectscan
SENTINEL3000 — Sentinel 3000 Multiscan
SENTINEL5000 — Sentinel 5000 Multiscan

Technical specifications

• Aperture size: Width 75–2000 mm, Height 75–600 mm; increments 25 mm up to 200 mm, 50 mm above 200 mm; footprint and aperture placement compatible with APEX 500 for upgrade (not all combinations possible)
• Certifications: cCSAus, CE, ISO9001
• Communications:
  • HMI: 7 in (178 mm) diagonal high‑intensity color touchscreen
  • Watertight USB 2.0
  • Watertight Ethernet (TeamViewer) — not available in checkweigher combos
• Construction: Stainless steel 304 straightline finish; food‑contact safe ABS front panel
• Electrical: 100–240 VAC single phase + earth, 50/60 Hz, 0.6–1.2 A
• Flange option: 1.5–2× smallest aperture dimension; optional reduced flanges available
• Applications: Metal detection for food, beverages and other products
• IP rating: IP69K
• Inputs (software selectable): Speed sensor, infeed photo eye, reject confirmation/bin full, external alarm, external reset; 8 inputs active 24 VDC, switch selectable NPN/PNP
• Outputs (software selectable): Reject 1/2, shutdown, alarm, warning; 8 relay outputs (250 VAC 2 A max; 50 VDC 1 A max) and 8 digital sourcing (PNP) outputs (24 VDC)
• Relative humidity: 20–80% non‑condensing; one‑way breather valve standard
• Sensitivity: Detects contaminants up to 25% smaller in volume (model dependent)
• Speed range: 0.5–80 m/min (1.7–262 ft/min); encoder input recommended
• Languages supported: English, Spanish, French, German, Italian, Dutch, Chinese, Czech, Russian, Polish, Thai, Portuguese
• Product type: Metal detector
• Operating temperature: Detector ambient −10° to +40°C; product in aperture −10° to +55°C; max washdown 55°C