Egetra

Egetra

Model No: TOC 1000

Combustion Oxidation — Non-Dispersive Infrared Absorption Method. Carbon-containing inorganic matter in the sample undergoes acidification and aeration treatment before being introduced into a high temperature combustion process (680°C) within an air stream free of carbon dioxide. An infrared detector then measures the resulting carbon dioxide content. Finally, the chemical oxygen demand (COD) is calculated based on the correlation between carbon content in CO₂ and COD.

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Technical Specification

Measurement Performance

  • Measurement Range: 0–50,000 mg/L (available up to 100,000 mg/L)
  • Lower Limit of Quantification: ≤ 5 mg/L (indicated value error ±30%)
  • Repeatability: ≤ 5%
  • Low Concentration Drift: ≤ 1 mg/L (within 5–100 mg/L)
  • High Concentration Drift: ≤ 5%
  • Resolution: 0.1 mg/L

Indicated Value Error

  • 5–100 mg/L: 20% ≤ ±10%; 50% ≤ ±8%; 80% ≤ ±5%
  • >100 mg/L: ≤ ±5%

Operation & Display

  • Display: 7-inch touchscreen
  • Measurement Modes: Continuous mode, cyclic mode, fixed-point mode, controlled mode, and manual mode
  • Measurement Cycle: ≤ 12 minutes (optimizable up to 5 minutes)
  • Calibration Mode: Manual and automatic calibration
  • Maintenance Cycle: Generally once per month

Power & Communication

  • Power Supply: 220V ±22V, 50Hz or DC 24V
  • Output Signal: 4–20 mA
  • Communication Method: MODBUS RS-485

System Parameters

  • Combustion Temperature: 680°C

Environmental Conditions

  • Environment: Temperature-controlled indoor environment
  • Recommended Temperature Range: +5°C to 40°C
  • Humidity: ≤ 85% (non-condensing)

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Egetra