CS5500M High-Frequency Infrared Carbon and Sulfur Analyzer employs the principle of high-frequency combustion and infrared detection. It enables rapid and accurate analysis of carbon and sulfur content in a wide range of solid inorganic materials with complex compositions, including various metal ores (such as iron ore, copper ore, bauxite, rare and scattered metal ores, etc.), non-metallic ores (such as coal, fluorite, sandstone, etc.), new energy materials, soils, glass, and so on.

To address the specific characteristics of geological and mineral samples—such as being powdery, moist, or toxic,the analyzer is purposefully equipped with enhanced functions including efficient dust removal, specialized moisture elimination, and corrosion protection. It offers notable advantages such as ease of maintenance, low detection limits, and stable data performance. As the latest gas analyzer developed by NCS , it is designed to actively support and contribute to the national strategy for a new round of mineral exploration and prospecting.

1.Infrared Detection System

lEmploys a dual-analog high-order filter-driven infrared design, where all band-pass and low-pass filters in the signal processing circuit adopt a fourth-order elliptic analog filter scheme. This avoids noise generated by sampling errors inherent in digital filters.

lChannel Configuration：Standard with three independent infrared detection channels (2 carbon + 1 low sulfur).

lDetector: Utilizes German-imported pyroelectric solid-state infrared detectors, featuring high-detectivity infrared sensing elements, finely structured high-efficiency infrared light chambers, quartz optical paths with a gold-coated inner surface, and high-order analog signal processing circuits. This significantly enhances the sensitivity and stability of infrared measurements.

lMotor: Equipped with Swiss-imported synchronous motors, driven by high frequency-stability crystal oscillators for continuous, fault-free operation of the synchronous chopper motor.

l Light Source: Adopts US original imported solid-state infrared light source, featuring excellent oxidation resistance and stable optical performance.

lTemperature Control: The gas chamber is temperature-controlled to maintain constant analysis gas temperature, ensuring measurement accuracy.

lProtective Atmosphere: The infrared light source and detector are maintained under a slight positive pressure with purified protective gas, isolating them from the influence of the ambient atmosphere to improve stability and measurement precision.

2.High-Frequency Combustion Furnace System

lEmploys an efficient and highly reliable heat source with a dual-chamber shielded structure, dual air-cooled waveguide windows, intelligent tube protection, and adjustable 13.56 MHz 2.7 kVA power to ensure complete combustion of diverse solid inorganic samples.

lIntegrates power supply isolation and feed-through capacitor decoupling to prevent crosstalk and stabilize high-frequency power.

lFeatures waveguide radiation shielding that effectively contains high-frequency emissions, ensuring safety for personnel and the environment, with radiation levels complying with Class A, Group 2 limits of GB4824-2019.

3.Flow Control System

lEmploys micro-pressure differential flow control and high-precision electronic flow control technology for the analytical gas stream, ensuring stable flow.

lIncorporates an advanced PID control model that stabilizes gas flow rapidly, allowing analysis to begin within five minutes of startup.

lAutomatically switches to gas-saving mode when the instrument is on standby.

lFeatures a valve-island based gas path design for simplified flow routing, enhanced stability, and minimized dead volume.

4.High-Efficiency Extraction System

lIncorporates efficient extraction, furnace pre-purge, direct ash discharge, and dual-brush automatic cleaning technologies, which, combined with software method settings, enable flexible and accurate analysis of various sample bases.

lImplements a zero dead‑volume gas path in the dust removal structure to minimize adsorption‑desorption effects.

lIntegrates fully automated leak detection for the analytical gas path based on carrier gas pressure monitoring, ensuring reliable results and ease of maintenance.

lIncorporates a corrosion-resistant gas path design that effectively prevents damage from corrosive gases.

lFeatures hardware-level anti-pinch furnace head design

lEnsures operator safety through safe air pressure operation and automatic shutdown upon power loss.

5.Instrument Self-Diagnostic Functions

lAutomatically monitors and alerts for inlet total oxygen pressure, post-furnace analysis gas pressure, and power gas pressure

lProvides real-time instrument status and maintenance alerts, with high-frequency standby, warm-up, and ready status monitoring and intelligent protection

lAutomatically monitors and alerts for high-frequency furnace door opening and closing

lSoftware offers step-by-step self-diagnostic functions (infrared signal monitoring and adjustment,  individual valve operation check in gas path)

lInstrument supports automatic leak detection via software

lFeatures humidity monitoring function

6.Embeds Maintenance Videos

lEmbedded guided maintenance videos provide on-demand guidance for instrument operation and maintenance.

7.Utilizes Multi-Parameter Compensation Algorithms to Ensure Measurement Accuracy

lAtmospheric pressure compensation, used to correct or compensate for the impact of atmospheric pressure on analysis results.

8.Provides Two Operating Modes

lAnalysis Mode 1: Furnace pre-purge + direct ash discharge technologies significantly shorten sample reset and analysis cycles.

lAnalysis Mode 2: Direct ash discharge + dual-brush automatic cleaning technologies ensure less dust residue.

9.Data Security Protection

lSoftware access requires an authorized USB key，operation is disabled if the key is removed, ensuring full protection of customer sample data.