Aqua 4 Trans

Aqua 4 Trans

🧪 What This Data Means — For Quick Client Selection

  • Optical LDO Technology: No membrane tears, no electrolyte refill, no frequent recalibration → lowest maintenance DO analyzer for 24×7 plants. 
  • Wide 0–20 mg/L Range: Ideal for both low-oxygen aeration basins and high-precision fermentation/aquaculture environments. 
  • ±0.1 mg/L Accuracy: Ensures optimized blower operation; reduces electricity consumption in aeration (major OPEX savings). 
  • Automatic Compensations: Temperature, pressure, and salinity corrections ensure DO accuracy even with seasonal or process variations. 
  • IP67 Industrial Design: Suitable for harsh outdoor environments in ETP/STP plants with humidity, dust, and chemicals. 
  • Fast Response: Enables DO-based blower/VFD control, improving biological treatment efficiency. 
  • Modbus/SCADA Integration: Perfect for digital monitoring, DO trending, and aeration automation. 
  • Long-Life Optical Cap: Reduces frequent sensor maintenance, making it ideal for municipal and industrial treatment plants. 
  • Application Fit: Best for aeration control, nitrification/denitrification monitoring, aquaculture DO control, and process DO stabilization.
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Description

Forbes Marshall Aqua 4Trans is a robust dissolved oxygen analyzer built for continuous aeration control in ETP/STP basins, biological reactors, aquaculture systems, and process water tanks. With advanced optical DO sensing, fast response, multi-parameter compensation, and industrial-grade transmitters, it ensures reliable DO monitoring with minimal maintenance and high long-term stability.

🔧 Aqua 4Trans — Key Technical Data & Selection Parameters

Parameter Specification / Details
Measurement Principle Optical Luminescent DO (LDO) – membrane-free
DO Measuring Range 0 – 20 mg/L (0–200% saturation)
Accuracy ±0.1 mg/L or ±1% of reading
Response Time < 60 seconds (typical)
Temperature Compensation Automatic via integrated Pt100 sensor
Pressure / Salinity Compensation Auto-compensation for true DO values
Process Temperature 0 °C to 50 °C
Process Pressure Up to 6 bar
Sensor Design Maintenance-free optical probe, long-life cap
Transmitter Type 4-wire field transmitter with diagnostics
Output 4–20 mA, Modbus/RS485 optional
Display Backlit LCD with multi-parameter view
Housing IP65/67, outdoor-rated ABS/SS enclosure
Power Supply 230 VAC / 24 VDC (model-dependent)
Calibration Air calibration / 1-point factory-assisted
Suitable Media Wastewater, process water, biological tanks
Typical Applications STP aeration basins, ETP biological tanks, aquaculture ponds, fermentation DO monitoring

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