Automatic Infrared Sulfur Analyzer
24-position IR sulfur analyzer with automatic weighing and feeding — ~120 s per sample, range 0.01–20 %.
- 24 samples, ~120 s each, cycle loading
- Automatic weighing, feeding, calculation, reporting
- Multi-point dynamic calibration, 0.001 % resolution
- Smart idle cooling extends furnace life
Overview
The RI-IRS3600 determines total sulfur by infrared absorption after complete combustion at 1350 °C. Twenty-four samples load at once, and priorities can be changed dynamically — add, delete or insert samples at any time, and cycle-load for continuous operation.
A proprietary multi-point dynamic calibration (1st/2nd/3rd order selectable) keeps high, mid and low sulfur samples accurate on the same curve. The IR cell is built around internationally sourced key components for high stability and low drift, and smart power management drops to standby temperature automatically when idle.
Key Features
Purge-assisted combustion
Sample blow-purge accelerates complete burnout, so even high-ash coal reaches full conversion in 120 seconds.
Low-drift IR cell
Key optical and detector components sourced internationally; software + hardware self-diagnostics protect against drift and failure.
Gentle flexible drive feeding
Flexible transmission solves the industry-wide noise and dropped-crucible problems of rigid feeders.
LIMS-ready networking
Ethernet interface uploads results automatically and supervises the whole testing process.
Technical Specifications
| Parameter | Declared value | Unit |
|---|---|---|
| Samples per run | 24 (cycle loading supported) | samples |
| Method | Infrared absorption | — |
| Range | 0.01 % – 20 % (extendable) | % |
| Resolution | 0.001 % | % |
| Sample mass | 80–100 mg | mg |
| Test time | ~120 s per sample | s |
| Furnace temperature | 1350 °C, control ±1 °C | °C |
| Precision | Conforms to GB/T 25214-2010 | declared method basis |
| Power | ≤4 kW | kW |
| Dimensions (L×W×H) | 620×590×820 mm (main unit) | mm |
| Weight | 60 kg (main unit) | 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 25214-2010 | Determination of total sulfur in coal by infrared absorption method (GB/T series)IR-absorption total-sulfur method — the method the infrared sulfur analyzer is built around. | Declared compliance |
| ASTM D4239 (equivalent method) | Standard Test Method for Sulfur in the Analysis Sample of Coal and Coke Using High-Temperature Tube Furnace CombustionListed as an equivalent method for the infrared sulfur analyzer; confirm the exact procedure and reporting basis with an engineer before acceptance. | Equivalent method |
Listed applications
Frequently Asked Questions
How is an infrared sulfur analyzer calibrated?
With certified reference coals or cokes covering the sulfur range and matrix you actually test. A single-point calibration is only valid close to that point; multi-point calibration across the working range, plus a daily drift check, is the normal practice. Matrix effects — ash content, carbonate sulfur, and combustion temperature — mean the calibration set must resemble the samples, which is why the furnace temperature and the oxygen/combustion regime are part of the acceptance test.
Is ASTM D4239 equivalent to my national method?
ASTM D4239 is listed for this instrument as an equivalent method, meaning the high-temperature tube-furnace combustion and the SO2 measurement are compatible in principle. Equivalence in a real laboratory means a documented side-by-side comparison on your own samples, with acceptance criteria agreed in advance. For a tender or accreditation scope, run that comparison and keep the record.
Which standards are declared for the RI-IRS3600, and are they equivalent or directly declared?
RI-IRS3600 is listed with: GB/T 25214-2010 (declared compliance); ASTM D4239 (equivalent method) (equivalent method). 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-IRS3600 be used for?
Listed applications: Coal terminals, Commercial labs, Power plants, Coke plants, Solid biomass. 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-IRS3600?
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.