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Performance Evaluation and Certification for Checkweighing Equipment

Performance Evaluation and Certification for Checkweighing Equipment

Ürün ayrıntıları:
Menşe yeri: ÇİN
Model numarası: Kontrol ekipmanı için performans değerlendirmesi ve sertifikası
Ödeme & teslimat koşulları:
Min sipariş miktarı: 1 set
Fiyat: Pazarlık edilebilir
Ambalaj bilgileri: Caron kutusu
Teslim süresi: 10-30 gün
Yetenek temini: Ayda 2000 Set
İletişim
Detaylı ürün tanımı
Ürün: Kontrol ekipmanı için performans değerlendirmesi ve sertifikası Tolerans tartı: Hedef ağırlığın ± 0.1-0.5'i (sınıfa göre değişir)
Minimum bölücü (e): E = 1-10g (Sınıf III için) Verim hızı: 100-600 adet/dakika (konveyör hızına bağlıdır)
Dengeleme süresi: ≤2 saniye (dinamik tartım için) Sıklık: Haftalık (yüksek kullanım) veya üç ayda bir (düşük kullanım)
Otomatik kalibrasyon: Sıcaklık tetiklenen veya zamana dayalı (donatılmışsa) Sıcaklık aralığı: 0 ° C ila 40 ° C (operasyonel), -20 ° C ila 60 ° C (depolama)
Titreşim direnci: ± 0.2g (endüstriyel titreşim için ISO 10816-3) Konveyör hızı: 0.1-1.5 m/s (ayarlanabilir)
Aşırı yük kapasitesi: Maksimum kapasitenin% 120'i (güvenlik sınırı) EMC uyumluluğu: Mekanizmayı reddet
Güç kaynağı: 24V DC ±% 5 veya 100-240V AC, 50/60Hz Tekrarlanabilirlik: ± 0.05-0.2 hedef ağırlığın%
Doğrusallık hatası: Tam ölçeğin ±% 0.1-0.3'ü Ticaret için: NTEP (ABD), 2014/32/AB ortası (Avrupa), OIML R51 (Global)
Malzeme güvenliği: FDA uyumlu (yiyecek temas ediyorsa), paslanmaz çelik 316 Veri Günlüğü: Zaman damgası, ağırlık, parti kimliği (CSV/PDF dışa aktarma)
Mekanizmayı reddet: Pnömatik/Mekanik (Yanıt Süresi ≤100ms)
Vurgulamak:

Mettler Toledo load cell checkweighing equipment

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checkweighing equipment performance evaluation

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certified checkweighing equipment

Performance Evaluation and Certification for Checkweighing Equipment
Performance evaluation and certification for checkweighing equipment is a critical process for ensuring product quality, legal compliance, and operational efficiency. Unlike static scales, checkweighers weigh products in motion, which introduces unique variables that must be carefully managed.
Attribute Value
Weighing Tolerance ±0.1–0.5% of target weight (varies by class)
Minimum Divisor (e) e = 1–10g (for Class III)
Throughput Rate 100–600 units/minute (depends on conveyor speed)
Stabilization Time ≤2 seconds (for dynamic weighing)
Frequency Weekly (high-use) or Quarterly (low-use)
Auto-Calibration Temperature-triggered or time-based (if equipped)
Temperature Range 0°C to 40°C (operational), -20°C to 60°C (storage)
Vibration Resistance ±0.2g (ISO 10816-3 for industrial vibration)
Conveyor Speed 0.1–1.5 m/s (adjustable)
Overload Capacity 120% of max capacity (safety limit)
EMC Compliance Reject Mechanism
Power Supply 24V DC ±5% or 100–240V AC, 50/60Hz
Repeatability ±0.05–0.2% of target weight (10 consecutive tests)
Linearity Error ±0.1–0.3% of full scale
Legal-for-Trade NTEP (US), MID 2014/32/EU (Europe), OIML R51 (Global)
Material Safety FDA-compliant (if food contact), Stainless Steel 316
Data Logging Timestamp, weight, batch ID (CSV/PDF export)
Reject Mechanism Pneumatic/mechanical (response time ≤100ms)
Key Components of Performance Evaluation
1. Initial Assessment and Mechanical Inspection
Before any tests begin, a thorough physical inspection is necessary to ensure the checkweigher's fundamental components are in good working order and not causing measurement errors.
  • Visual Check: Inspect the conveyor belts, weigh platform, and frame for any signs of damage, wear, or debris. The weigh platform must be free-floating and not touching any surrounding parts.
  • Component Integrity: Check for loose bolts, screws, or wiring. The load cell, which is the heart of the weighing system, must be secure and undamaged.
  • Environmental Factors: The checkweigher's performance is sensitive to its environment. Factors like vibration from other machinery, temperature, and humidity can all affect accuracy.
2. Calibration and Verification
Calibration adjusts the checkweigher to ensure correct measurements, while verification confirms the system's accuracy and consistency.
  • Static Calibration: Preliminary calibration with certified test weights while the conveyor is stopped to establish baseline accuracy.
  • Dynamic Calibration: Crucial test where a known product is passed over the moving conveyor multiple times to confirm motion weighing accuracy.
  • Repeatability Test: A single product of known weight is run through multiple times to check consistency within tight tolerances.
  • Corner Load Test: Weight is placed at different corners of the weigh platform to verify performance of all load cells.
Performance Evaluation and Certification for Checkweighing Equipment 0

İletişim bilgileri
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