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IDO Integrated Digital Dissolved Oxygen Sensor — product photo 1

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IDO Integrated Digital Dissolved Oxygen Sensor

Dissolved Oxygen

Integrated digital luminescent dissolved oxygen sensor — no membranes or electrolyte, virtually maintenance-free, with digital Modbus networking.

  • Luminescent principle — no membrane or electrolyte replacement
  • Consumes no oxygen; no flow requirement
  • Digital RS485 Modbus output, plug-and-play networking
  • Immune to H₂S and common ion interference

Tổng quan

A dissolved oxygen sensor continuously measures the concentration of oxygen dissolved in water — the key control signal for aeration and a fundamental indicator of aquatic health.

The IDO Integrated Digital Dissolved Oxygen Sensor operates on the principle of luminescence quenching. When blue light excites a luminescent material on the sensor cap, it emits red light. Oxygen molecules quench this emission by absorbing energy, reducing both the intensity and the lifetime of the red light in inverse proportion to the dissolved oxygen concentration. By measuring the phase shift between the emitted red light and a reference signal and comparing it with internal calibration values, the sensor calculates the dissolved oxygen level.

Ứng dụng tiêu biểu

Aeration tank control in wastewater treatment plantsAquaculture dissolved oxygen monitoringSurface water and effluent monitoringDistributed monitoring points networked with TC1000 / TC2000 controllers

Tính năng

  • Innovative luminescence-based technology with no flow requirement, no oxygen consumption and no interference from pH, CO₂, NH₄⁺, Cl⁻ or other ions
  • Low-energy excitation extends the lifespan of the luminescent cap
  • Calibration with standard gas fixture ensures superior measurement accuracy
  • Optional brush self-cleaning for fouling environments

Thông số kỹ thuật

Thông sốThông số kỹ thuật
Phương pháp đoPhương pháp huỳnh quang
Thang đo0–20 mg/L
Độ chính xác±2% hoặc 0,15 mg/L
Độ lặp lại≤ 0.15 mg/L
Độ phân giải0.01 mg/L
Thời gian đáp ứng≤ 60 s
Độ chính xác bù nhiệt độ±0.3 mg/L
Dải nhiệt độ0–50 °C (không đóng băng)
Cấp bảo vệIP68
Giao tiếp truyền thôngGiao tiếp RS485, giao thức Modbus RTU
Nguồn cấp9–28 VDC
Công suất tiêu thụ0.36 W
Kích thướcΦ40.5 × 240 mm
Vật liệuThép không gỉ 316L

Câu hỏi thường gặp

LDO Luminescent Dissolved Oxygen Analyzer

Luminescent dissolved oxygen analyzer with no membranes or electrolyte to replace — virtually maintenance-free for harsh wastewater conditions.

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