Humidity testing system C840H

temperaturecalibrationchemical

Description
The C840H Integrated Evaporation Residue Testing System is a desktop laboratory instrument for gravimetric determination of evaporation residue, loss on drying, and overall migration/total migration/non-volatile matter in food-contact materials, pharmaceutical packaging, chemical reagents and purified water. The system combines automatic sample handling, controlled evaporation/drying, cooling and high-precision weighing in a compact mainframe for traceable, compliant testing.




Key features

• Traceable data: Fully automatic gripper handling up to 25 test cups; dual-chamber design separates evaporation and weighing to reduce temperature and humidity effects; high-precision electronic balance with repeatability down to 0.05 mg; balance visible through viewing panel and calibratable with standard weights; quick-disassembly design for maintenance and calibration.
• Safe & compliant operation: Fully closed zero-leakage water bath with automatic fill/drain and liquid-level detection; rapid liquid cooling to enable room-temperature weighing; nitrogen purge cycles and independent electrical control for safe management of flammable/explosive/toxic emissions; integrated reagent collection to limit environmental release.
• Intelligent control & data management: 12.1 medical-grade touchscreen for standalone operation; automated sequences for water-bath movement, lid closing, evaporation, drying, cooling and weighing; multiple sensors with audible/visual alarms; network port for remote control and upgrades; professional software supporting GMP traceability and optional 21 CFR Part 11 electronic signatures and multi-level user management.
• Testing principles: Supports Total Migration (soak sample in simulant, evaporate and dry to measure total non-volatile migration) and Non-volatile Matter (compare evaporated/dried sample to blank to obtain residue mass).

Standards compliance

• Complies with standards for pharmaceutical and food-contact testing and reagent residue determination, including ISO 1135-4:2015, ISO 1135-5:2015, ISO 3826-1:2019, ISO 3826-4:2015, ISO 8536-4:2019, Pharmacopoeia references, YBB00342002-2015, YBB00132002-2015, EN1186-3, GB 31604.8-2016, GB/T 5009.60, ISO 759-1981, ISO 6353-1:1982 GM14, GB/T 9740 and other related international/regulatory standards.

Applications

• Basic application: Purified water — determination of non-volatile matter in purified water for pharmaceutical use.
• Extensive applications: Pharmaceutical packaging materials — non-volatile residue testing of 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 products; Chemical reagents — determination of reagent residue after evaporation.

Technical specifications

• Model: C840H
• Testing range (mg): 0.05–10,000 (standard); optional 0.3–80,000
• Resolution (mg): 0.01 (standard); optional 0.1
• Repeatability (mg): ±0.05 (standard); optional ±0.3
• Temperature range: Room temperature to 130 C
• Temperature fluctuation: ±0.5 C
• Extended functions (optional): 21 CFR Part 11, GMP computer-system requirements
• Test stations: 25
• Test cup volume: 100 mL (customizable)
• Gas specification: Compressed air (gas source by user)
• Gas source pressure: ≥ 72.5 PSI / 500 kPa
• Port size: Φ8 mm polyurethane tube
• Instrument mainframe dimensions: 32.6 H x 43.3 W x 28.7 D (83 cm × 110 cm × 73 cm)
• Power supply: 120 VAC ±10% 60 Hz or 220 VAC ±10% 50 Hz (select one)
• Net weight: 440 lbs (200 kg)
• Standard configuration: Instrument mainframe including balance (0.01 mg), electrical control module, reagent collection module, liquid cooling module, 25 test cups, Φ8 mm polyurethane tube
• Optional parts: Software (GMP), 21 CFR Part 11 package, air compressor (exhaust >200 L/min), alternative test cups, alternative balance (0.1 mg), calibration weight (50 g)