Laboratory Halogen Loss-on-Drying
AL-1201 Halogen Moisture Analyzer
Fast laboratory reference testing for quality control and inline sensor calibration
The AL-1201 combines a 1 mg weighing system with a 450 W ring halogen heater to measure moisture by loss on drying. It gives production and laboratory teams a faster reference result for incoming inspection, process checks, method development, and verification of online NIR or microwave moisture measurements.
Key Features
Built for Fast, Repeatable Reference Testing
Technical Specifications
Detailed Product Specifications
| Model | AL-1201 |
| Measurement Principle | Halogen loss on drying / thermogravimetric method |
| Maximum Capacity | 120 g |
| Mass Readability | 0.001 g (1 mg) |
| Moisture Readability | 0.01% |
| Moisture Display Range | 0.01% to 100% |
| Weighing Sensor | Germany HBM |
| Temperature Range | 40°C to 230°C |
| Heating Source | 450 W high-efficiency ring halogen lamp |
| Heating Programs | Gentle, standard, fast |
| End-Point Modes | Automatic, manual, timed |
| Display | 5-inch HD touchscreen |
| Interface | RS-232 standard; USB customization available |
| Sample Pan | 90 mm stainless-steel pan |
| Operating Environment | 10°C to 40°C |
| Product Size | 370 × 215 × 195 mm |
| Packing Size | 445 × 300 × 330 mm |
| Weight | 3.8 kg net / 4.8 kg gross |
Applications
Laboratory and Calibration Applications
Typical uses for rapid sample testing, quality control, and verification of inline moisture measurements.
- Reference testing for online moisture analyzer calibration
- Incoming-material and finished-product quality control
- Plastics, resin pellets, powders, and chemical raw materials
- Grain, flour, feed, food, tea, and agricultural products
- Paper, tobacco, textiles, and pharmaceutical materials
- Rapid comparison with an established oven-drying method
Installation Overview
Place the analyzer on a stable, level laboratory bench away from vibration and strong airflow. Prepare a representative sample, spread it evenly across the stainless-steel pan, and select a validated heating temperature and end-point method. For online sensor calibration, collect the reference sample at the measuring point and keep the sampling, preparation, and test method consistent.
Best Fit
- Plants that need faster reference checks than a conventional drying oven
- Online moisture projects that require routine calibration and verification samples
- Laboratories that test multiple materials with saved heating and end-point methods
- Quality teams that need printed or computer-recorded test results
Process Benefits
- Shorten routine moisture checks from hours to minutes for many suitable samples
- Create a repeatable reference method for commissioning online analyzers
- View the drying curve and live moisture trend during each test
- Reduce manual calculations with automatic moisture and solids reporting
Integration Options
- Standard RS-232 connection for compatible printers and PCs
- Optional customized USB communication
- Use alongside oven-method samples when establishing a material test method
- Pair with ALZRO online NIR or microwave systems for calibration checks
Reference Industries
Application References
Representative laboratory and quality-control uses for rapid reference moisture testing.
Selection and Validation
Build a Reliable Laboratory Method
Sample preparation, heating method, and the reporting basis must be defined for the actual material.
Information Needed
- Sample material, physical form, expected moisture range, and volatile components
- Current oven or reference method, drying temperature, test time, and reporting basis
- Typical sample mass, daily sample volume, and required turnaround time
- Required readability, printer or PC connection, and quality-record needs
- Whether the result will support incoming inspection, finished-product release, or online analyzer calibration
Method Development
- Suggested sample mass and typical test time must be established by method trials for the actual material.
- Repeatability should be demonstrated with replicate tests using fixed sample preparation, mass, temperature, and end-point settings.
- Weight and temperature verification frequency should follow the laboratory quality system and usage; the current datasheet does not state a universal interval.
- Internal result storage is not specified in the current datasheet; RS-232 is standard and USB is available as a customized option.
Limits to Consider
- This is a destructive, sample-based test and does not provide continuous process measurement.
- A representative sample is essential; non-uniform material or poor sample preparation can dominate the result.
- Loss on drying can include volatile compounds other than water, and heat-sensitive, flammable, foaming, or skin-forming samples require method and safety review.
- Halogen and oven results are not automatically equivalent; the method must be validated for each material and reporting basis.
Routine Care and Quality Checks
- Allow the chamber to cool, then clean the sample pan and chamber without contaminating or loading the weighing mechanism.
- Keep the instrument level and away from vibration, strong airflow, and rapid ambient-temperature changes.
- Include routine mass and temperature checks in the laboratory quality plan and document any method changes.
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Related FAQs
An online moisture analyzer is an industrial instrument that continuously measures moisture content during production, without stopping the line for repeated manual sampling. Unlike laboratory methods that provide delayed spot checks, online analyzers give process teams real-time values they can use to adjust drying, feeding, batching, or quality control earlier. Typical applications include powders, granules, bulk solids, and conveyor-based material handling.
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