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COD Controller DUC2-COD

This wall-mounted instrument features a 3.2-inch backlit LCD screen and dual RS485/Modbus interfaces, providing centralized, multi-parameter data logging and automated wash relays, specifically designed for single-channel chemical oxygen demand monitoring systems.

  • Measuring Range： COD: 0~9999mg/L; TOC: 0~9999mg/L; BOD: 0~9999mg/L; TU: 0~4000NTU; Temp: -10~500℃ (measuring range related to the connected sensor)
  • Delivery time： 2-5 weeks
  • MOQ： 1
  • Price： Contact Us
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  • Anti-twist cap
  • PG13.5
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Standard

Model DUC2-COD
Sensor Input Single-channel digital COD sensor input for water
Display Range

COD: 0~9999mg/L TOC: 0~9999mg/L BOD: 0~9999mg/L TU: 0~4000NTU  Temp: -10~500℃   (measuring range related to the connected sensor)

Resolution

COD: 0.01mg/L(0~100), 0.1mg/L(100~1000), 1mg/L(1000~9999)

TOC: 0.01mg/L(0~100), 0.1mg/L(100~1000), 1mg/L(1000~9999)

BOD: 0.01mg/L(0~100), 0.1mg/L(100~1000), 1mg/L(1000~9999)

TU: 0.01NTU(0~100), 0.1NTU(100~1000), 1NTU(1000~4000)

Temp: 0.1℃
Relay Control

Two settable SPST relays, Max. load of 3A/250VAC

Set high/low alarm, temperature and wash control
Current Output Two settable 0/4~20mA current, Max. load 1000Ω
Digital Output 2-wire RS485 interface, MODBUS RTU
Display Screen 128*64 LCD, adjustable backlight mode, adjustable display rate
Configuration Power-off protection, parameters are retained indefinitely
Electronic clock Display year/month/day, hour/minute/second
Historical Data Historical data query and download, record last 100 calibration data
Language English
Protection Grade IP66
Work Temperature 0～60℃， RH<95% ( no condensation)
Storage Temperature -20～70℃， RH<55% ( no condensation, precision instruments)
Enclosure Material Enhanced ABS
Dimension 144mm x 144mm x 120mm (hole size 138mm x 138mm)
Installation Wall mounting, pipe clamping, panel installation
Electrical Interface Reserve three M12 x 1.5 gland heads; the wire diameter is 3~6.5mm
Power Supply AC: 100~240V 50/60Hz or DC: 18~36V
Power Consumption About 24W