Product introduction 

The KNY2506E  TOC Analyzer  employs the high-temperature catalytic combustion oxidation method. The sample, along with purified gas (high-purity oxygen), is introduced into both a high-temperature combustion tube and a low-temperature reaction tube.In the high-temperature combustion tube, the sample undergoes catalytic oxidation, converting both organic carbon (OC) and inorganic carbon (IC) into carbon dioxide (CO₂).

In the low-temperature reaction tube, the sample is acidified, causing the inorganic carbon (IC) to decompose into CO₂.

The CO₂ produced in both reaction tubes is transported by a carrier gas and sequentially introduced into a Non-Dispersive Infrared (NDIR) gas detector for CO₂ measurement. This allows for the separate determination of:

Total Carbon (TC) (from the high-temperature tube)

Inorganic Carbon (IC) (from the low-temperature tube)

The Total Organic Carbon (TOC) is then calculated as the difference between TC and IC:TOC = TC – IC

This method ensures accurate and efficient measurement of organic carbon content in water samples.

Product feature 

KNY2506A Total Organic Carbon (TOC) Analyzer – Key Features

High-Temperature Catalytic Oxidation – Efficiently oxidizes even hard-to-digest organic carbon, enabling accurate analysis of high-concentration TOC samples.

Rapid Analysis (1–4 minutes) – Delivers fast and precise measurement results.

Enhanced Safety – The combustion furnace features multi-layer protection, including an independent overheat protection circuit that automatically cuts off heating if temperatures exceed safe limits.

Real-Time Flow Monitoring – Ensures stable gas flow, guaranteeing high data reliability.

Multi-Directional Pipeline Cleaning & Purging – Allows thorough internal loop cleaning as needed, reducing failure rates and maintenance time.

Automatic Waste & Acid Discharge – Automatically manages acid injection and drainage with precise acid volume control.

Low Sample & Reagent Consumption –

High-purity water: 0.5 μL per test

Acid reagent: 2 mL (for IC testing)

High-purity oxygen: ~2000 mL (standard conditions, flow rate 100 mL/min, 20 min purging)

High-Accuracy NDIR CO₂ Detection – The NDIR detector provides excellent linearity and precision. CO₂ signals are converted into peak curves, and the built-in data processor calculates TOC values (TOC = TC – IC).

Strong & Stable Oxidation Performance –

Catalytic combustion oxidation ensures nearly complete oxidation of all organic compounds.

680°C combustion temperature (below the melting point of most salts) extends the lifespan of catalysts and combustion tubes, crucial for analyzing salt-containing water samples.

User-Friendly 7-inch Touchscreen – High-resolution display with an intelligent operating system and full Chinese interface for easy and intuitive operation.

This advanced design ensures high efficiency, safety, and reliability in TOC analysis across various applications.

Technical Specifications of RT2201E TOC Analyzer

Parameter Specification

Measurement Range 0–1000 mg/L (undiluted), up to 0–30000 mg/L (diluted)

Repeatability ≤ 3%

Accuracy TC: ±0.1% FS or ±5% (whichever is larger)

IC: ±0.1% FS or ±4% (whichever is larger)

Linearity R² ≥ 99.9%

Detection Limit 0.5 mg/L

Analysis Time 2–4 minutes

Injection Volume 10–500 μL (adjustable)

External Storage USB drive support

Operating & Installation Environment Requirements

Power Supply: AC 220V±10%, 50/60Hz (must be reliably grounded)

Power Consumption: 1000W (during furnace heating)

Ambient Temperature: 0~40℃

Relative Humidity: 10~85%

Installation Location: Indoor

Gas Supply: High-purity oxygen (≥99.999%)

Water Requirement: Carbon dioxide-free water (TOC≤0.5 mg/L)

Acid Reagent: 10% phosphoric acid

Instrument Placement: Minimum 20 cm clearance on all sides for ventilation; no objects should be placed above the instrument

Combustion Temperature: 680℃~1200℃

Application Fields

This configuration ensures optimal performance and safety during operation. The instrument should be installed in a well-ventilated, temperature-controlled indoor environment with stable power supply and proper gas/water sources.