Technical Specifications
| Controller Measurement Variables | Dissolved oxygen, saturation, oxygen partial pressure |
| Controller Measuring Range | 0 mg/L to 20 mg/L, 0% to 200%, 0 hPa to 400 hPa |
| Controller Resolution | 0.01 mg/L, 0.1 %, 1 hPa |
| Controller Accuracy | ±1.5 % FS |
| Controller Repetition | ±0.5 % FS |
| Controller Output Type | 4 mA to 20 mA current transmission output |
| Controller Max. Loop Resistance | 750 Ω |
| Controller Accuracy | 0.1% FS |
| Controller Output Type | RS485 digital signal output |
| Controller Communication Protocol | Standard MODBUS-RTU (customizable) |
| Controller Power Supply | AC220 V ±10%, 50 Hz/60 Hz (optional 24 V ±10%) |
| Controller Alarm Relay | AC 250 V, 3 A |
| Sensor Ultra-resistant To Pressure | (0.6 Mpa) wallop, imported (grit mesh metal membrane) |
| Sensor Up Thread | M32 x 2 |
| Sensor Measuring Range | 0 mg/L to 20 mg/L |
| Sensor Measuring Principle | Current type sensor (polarographic electrode) |
| Sensor Breathable Membrane Thickness | 100 μm |
| Sensor Electrode Shell Material | PVC or 316 L stainless steel |
| Sensor Life | >2 years |
| Sensor Cable Length | 5 m |
| Sensor Measurement Limit | 40 mg/L |
| Sensor Polarization Time | 60 min |
| Sensor Minimum Flow Rate | 2.5 cm/s |
| Sensor Drift | <2% / month |
| Sensor Measurement Error | <±0.01 mg/L |
| Sensor Output Current | 50 nA to 80 nA /0.1 mg/L Note: Maximum current 3.5 uA |
| Sensor Polarization Voltage | 0.7 V |
| Sensor Zero Oxygen | <0.01 mg/L |
| Sensor Calibration Interval | >60 days |
| Sensor Detection Limit | 0.01 mg/L, 68 °F (20 ℃) |
| Sensor Response Time | 2 min 90%, 68 °F (20 ℃) |
| Temperature Compensation Resistance | Pt 100, Pt 1000, 22 K, 2.252 K, etc. |
| Sensor Measured Water Temperature | 32 °F to 140 °F (0 ℃ to 60 ℃) |
| Controller Temperature Measurement Type | NTC 10 K / PT 1000 |
| Controller Temperature Measuring Range | 14 °F to 140 °F (-10 ℃ to 60 ℃) |
| Controller Temperature Resolution | 32.18 °F (0.1 ℃) |
| Controller Temperature Accuracy | ±32.9 °F (±0.5 ℃) |
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