Automatic Moisture Analyzer
22-position total-moisture analyzer with light-wave heating and optional nitrogen purge — 15–25 min fast mode, 15 % energy saving.
- 22 samples per batch
- Light-wave heating: 15 % energy saving, faster cycles
- Optional nitrogen-purge arbitration mode
- Power-loss data memory
Overview
The RI-MW2200 determines total moisture in coal by oven drying with automatic weighing. Light-wave tubes replace conventional infrared lamps: heating is more even, faster and 15 % more efficient, and with the built-in heat dissipater, batch-to-batch waiting time drops — overall throughput improves about 25 %.
An automatic nitrogen-purge option protects samples from oxidation, enabling arbitration-grade moisture results. Power-loss memory preserves data mid-test, and the imported balance module keeps weighing fast and accurate. Single or dual control configurations combine freely.
Key Features
Light-wave heating
More uniform and faster than IR lamps — the same result in less time with lower power draw.
N₂-purge arbitration mode
Nitrogen purge prevents oxidation of reactive low-rank coal, meeting GB/T 211 arbitration requirements.
Uninterrupted batches
Active heat dissipation between runs plus memory-on-power-loss keep multi-batch schedules on track.
Flexible configurations
Single or dual control units share one frame — expand as your sample load grows.
Technical Specifications
| Parameter | Declared value | Unit |
|---|---|---|
| Samples per batch | 22 | samples |
| Precision | Conforms to GB/T 211-2007 & GB/T 212-2008 | declared method basis |
| Test time | Classic 25–45 min · Fast 15–25 min | min |
| Heating | Light-wave tubes with heat dissipater | — |
| Atmosphere option | Automatic nitrogen purge | — |
| Power | <2.5 kW | kW |
| Dimensions (L×W×H) | 540×660×680 mm | mm |
| Weight | 45 kg | kg |
Download datasheet (PDF) or request a copy with your voltage & plug standard.
Standards: what each number covers
Buyers compare instruments by standard number, then have to look up the title and the relationship. This table does that for you. “Declared” means the method is named for this model; “equivalent” means the method is compatible in principle and must be verified against your own procedure; “referenced” means the standard supplies qualification or test conditions rather than the measurement itself. Final method compatibility depends on the configured instrument and your written test procedure.
| Standard | Title and relevance | Relationship |
|---|---|---|
| GB/T 211-2007 | Determination of total moisture in coal (GB/T series)Total-moisture determination method used when the laboratory reports as-received or total moisture. | Declared compliance |
| GB/T 212-2008 | Proximate analysis of coal (Chinese national standard, GB/T series)Chinese national proximate-analysis method; widely cited in Chinese-sourced tenders and often used alongside ASTM D7582 for cross-checking. | Declared compliance |
| GB/T 483-2007 | General rules for analytical and testing methods of coal (GB/T series)General sampling/preparation and testing rules — referenced for sample handling rather than as a measuring method. | Referenced qualification / test conditions |
Listed applications
Frequently Asked Questions
Total moisture or inherent moisture — what is the difference?
Total moisture is the water lost from the sample as received, including surface water; inherent (air-dried) moisture is what remains in the analysis sample after air drying. Both are reported, and the relationship between them is what allows results to be converted between as-received and air-dried bases. Mixing the two bases is one of the most common causes of an apparently wrong calorific value or ash figure.
Why use a nitrogen purge when drying coal?
Because hot air oxidises the coal during drying, which both adds mass (oxygen uptake) and loses mass (early volatile loss), biasing the moisture result. A nitrogen purge removes oxygen from the drying chamber so the mass loss is essentially water. For low-rank coals and for referee work, the inert-atmosphere option is normally required.
Which standards are declared for the RI-MW2200, and are they equivalent or directly declared?
RI-MW2200 is listed with: GB/T 211-2007 (declared compliance); GB/T 212-2008 (declared compliance); GB/T 483-2007 (referenced qualification / test conditions). The standards table below shows what each number covers. Final method compatibility depends on the configured instrument and the customer's written test procedure.
Which samples can the RI-MW2200 be used for?
Listed applications: Coal wash plants, Stockpile & yard control, Trade settlement labs, Coke plants. Send the sample matrix, preparation method and reporting standard so the configuration and the acceptance criteria can be confirmed in writing.
How do I get a quotation and the datasheet for the RI-MW2200?
Send the sample type, daily throughput, required standard, destination country, voltage and plug standard, and any prequalification documents your buyer requires. RoyIntelli will confirm the configuration, the documents available for that model and the commercial terms in a written quotation. Final specifications, lead time, warranty and payment terms are confirmed in the Proforma Invoice.