Calibration tester C840M

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The C840M Integrated Evaporation Residue Testing System is an automated gravimetric-method instrument for determination of evaporation residue, total migration and non-volatile matter in food contact materials, pharmaceutical packaging and chemical reagents. It integrates evaporation, drying, rapid cooling and high-precision weighing to provide traceable results and GMP-compliant data management.

Characteristics

• Traceable Data
  • Fully automatic gripper for fast transfer and weighing of 12 test cups.
  • Dual separate-chamber design isolates evaporation from weighing to prevent temperature and humidity effects on the balance.
  • Optional imported precision balance with repeatability down to 0.05 mg.
  • Visual and traceable balance layout; user-accessible self-calibration weight that can be quickly removed.
• Safe & Compliant
  • Fully closed, zero-leakage water bath to prevent release of harmful vapors.
  • Automatic water fill and drain with liquid-level detection.
  • Rapid liquid cooling enabling accurate room-temperature weighing.
  • Nitrogen circulation and independent electrical control for safe handling of hazardous gases.
  • Efficient reagent collection module to minimize environmental contamination.
• Intelligent Control
  • 10.1-inch medical-grade touch screen; instrument can operate independently without a PC.
  • Compact benchtop design automates evaporation, drying, cooling and room-temperature weighing.
  • Embedded sensors with audible and visual alarms; network port for remote control and firmware upgrades.
  • Professional software for GMP data traceability; multi-level user management and electronic signature support per 21 CFR Part 11 (design available).

Testing Principles

• Total Migration: Sample is immersed in a food-simulator solution; after evaporation and drying, the total migration amount of non-volatile matter is determined.
• Non-volatile Matter: Sample is treated with the specified solvent; after evaporation and drying, the mass of non-volatile residue is measured relative to a blank.

Test Standard Compliance

• Pharmacopoeia standards; YBB00342002-2015, YBB00132002-2015 and other pharmaceutical packaging/production norms.
• ISO 759-1981; GB 31604.8-2016; GB/T 5009.60 and other food contact material standards.
• GB/T 9740 and standards for determination of reagent residues after evaporation.

Applications

• Basic Applications
  • Purified water: determination of non-volatile matter in purified water for pharmaceutical use.
• Extensive Applications
  • Pharmaceutical packaging materials: determination of non-volatile matter in composite films, bags, bottles, rubber stoppers and caps.
  • Food contact materials: total migration testing for polyethylene, polystyrene, PVC, polypropylene, melamine, foam polystyrene and plant-fiber molded products.
  • Chemical reagents: residue determination of various reagents after evaporation.

Characteristics / technical specifications

• Model: C840M
• Test range (mg): 0.3 – 80,000 (0.05 – 10,000 optional)
• Resolution (mg): 0.1 (0.01 optional)
• Repeatability (mg): ±0.3 (±0.05 optional)
• Temperature range: Room temperature – 130 ℃
• Temperature fluctuation: ±0.5 ℃
• Extended functions (optional): 21 CFR Part 11; GMP computer system requirements
• Test stations: 12
• Test cup volume: 100 mL (customizable; test range may depend on delivery)
• Gas specifications: Compressed air (user-supplied)
• Gas source pressure: ≥ 72.5 PSI / 500 kPa
• Port size: Φ8 mm polyurethane tubing
• Instrument dimensions: 63 cm × 105 cm × 73 cm (24.8 × 41.3 × 28.7 in)
• Power supply: 120 VAC ±10% 60 Hz or 220 VAC ±10% 50 Hz (select one)
• Net weight: 180 kg
• Standard configuration: Instrument host; balance (0.1 mg); reagent collection module; liquid cooling module; test cups (12); Φ8 mm polyurethane tubing.
• Optional parts: Software; GMP computer system; 21 CFR Part 11; air compressor (exhaust > 200 L/min); test cup (100 mL); balance (0.01 mg); calibration weight (50 g); air drying module.