- Food packaging
- Medical devices
- Pharmaceutical packaging
- Household plastic products
Evaporation Residue Constant-Weight Analyzer
Determine the total non-volatile substances released from materials under defined contact conditions.
A 25+ position automated evaporation-residue and constant-weight system that determines the total non-volatile substances released from materials under defined contact conditions.

Workflow and key features
ELT-MA is built for safety and suitability evaluation of food packaging, medical devices, pharmaceutical packaging and household plastic products. It quantifies the non-volatile material that may migrate when a specimen contacts water, acid, alcohol, oil or fat under specified conditions, while integrating evaporation, controlled conditioning, robotic transfer, precision weighing and constant-weight determination.
- At least 25 test positions for high-throughput laboratory batches
- Five-axis robot with closed-loop motion control and operating software
- Integrated evaporation, conditioning and repeated constant-weight weighing
- Determines total non-volatile substances released under specified contact conditions
- Supports water, acid, alcohol, oil and fat contact-media workflows
- Supports safety and suitability assessment of food packaging, medical devices, pharmaceutical packaging and household plastics
- Batch modes for samples, vessels, filters and sampling heads
- Independent balance platform reduces vibration during precision weighing
- Automatic result recording and report consolidation support traceability
- Safety monitoring covers temperature overload, electrical leakage and operating alarms
Reference configuration
Published values describe the current high-throughput ELT-MA configuration. Vessel compatibility, low-humidity options, external dimensions, shipping weight, destination utilities, method scope and documentation are confirmed in the formal quotation.
- System class
- High-throughput integrated evaporation-residue and constant-weight analyzer
- Test positions
- 25 or more
- Automation
- Five-axis robotic handling with full closed-loop control system and software
- Balance capacity
- 220 g
- Balance readability
- 0.1 mg
- Balance stabilization time
- <=6 s
- Balance integration
- Real-time interface with the main control system
- Evaporation chamber
- 60-150 deg C; control error +/-0.5 deg C
- Weighing chamber
- 15-30 deg C; control error +/-0.5 deg C
- Humidity control
- 30-70% RH; control error +/-3% RH
- Dew-point control
- Control error +/-0.5 deg C
- Integrated workflow
- Automated evaporation, conditioning, robotic transfer and repeated constant-weight weighing
- Test principle
- Gravimetric determination of non-volatile residue after method-defined extraction or contact
- Compatible carriers
- Evaporation dishes, crucibles, weighing bottles, filters, filter cartridges and sampling heads
- Rated power
- 2,500 W
- Electrical supply
- AC 220 V +/-10%, 50 Hz
Test-method referencesWorkflow references, not a certification claim4 references +
These references identify workflows described for this model. The formal quotation confirms the exact edition, fixtures, software, accessories and verification documents supplied for the selected configuration.
- GB/T 5750.4-2023 - standard examination methods for drinking water, organoleptic and physical indices
- GB/T 11901-1989 - suspended substance in water by the gravimetric method
- HJ 1221-2021 - ambient-air dustfall by the gravimetric method
- HJ 618-2011 - ambient-air PM10 and PM2.5 by the gravimetric method
- Material and intended use
- Water, acid, alcohol, oil or fat contact medium
- Required test method and contact conditions
- Vessel format, batch volume and reporting needs
The quoted configuration remains the controlling specification.
Published values describe the current high-throughput ELT-MA configuration. Vessel compatibility, low-humidity options, external dimensions, shipping weight, destination utilities, method scope and documentation are confirmed in the formal quotation. Delivery scope, warranty, lead time, calibration evidence and overseas service are stated in the formal offer.