Description
Forbes Marshall Aquamax DO is a high-accuracy dissolved oxygen analyzer designed for wastewater, ETP/STP aeration control, fermentation, aquaculture, and process water monitoring. With advanced optical DO sensing, fast response, automatic temperature/pressure/salinity compensation, and rugged field-ready construction, it delivers reliable DO measurement with minimal maintenance.
🔧 Aquamax DO — Key Technical Data & Selection Parameters
| Parameter | Specification / Details |
| Measurement Principle | Optical Luminescence (LDO) / Non-membrane technology |
| DO Measuring Range | 0 – 20 mg/L (0 – 200% saturation) |
| Accuracy | ±0.1 mg/L or better |
| Response Time | < 60 sec (typical optical probe response) |
| Temperature Compensation | Automatic (via integrated temperature sensor) |
| Pressure / Salinity Compensation | Automatic compensation for improved accuracy |
| Process Temperature | 0 °C to 50 °C |
| Process Pressure | Up to 6 bar |
| Sensor Design | Optical, membrane-free, reagent-free (low maintenance) |
| Output | 4–20 mA, Modbus/RS485 (depending on model) |
| Display | Backlit LCD with digital diagnostics |
| Power Supply | 230 VAC / 24 VDC (model dependent) |
| Housing | Weatherproof, IP65/67 for outdoor ETP/STP environments |
| Calibration | 1-point/2-point, air-saturation method |
| Typical Applications | STP/ETP aeration basins, DO control loops, aquaculture, fermentation, boilers, utility water |



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