Overview:
This instrument is an intelligent online controller, which is widely used in water quality detection in sewage plants, waterworks, water stations, surface water, and other fields, as well as electronic, electroplating, printing and dyeing, chemistry, food, pharmaceutical, and other process fields. It meets the needs of water quality detection. Adopting digital and modular design, different functions are completed by various unique modules. Built-in more than 20 kinds of sensors, which can be combined at will, and reserved powerful expansion functions.
Oxygen analyzer Technical Specifications:
| Screen | 78 mm × 78mm CTP Ultra-clear touch screen |
| Working Voltage | AC 90V to 220V, 50/60Hz; DC 12V to 36V |
| Instrument Size | 100 mm × 100 mm × 150 mm |
| Instrument Opening Hole Size | 93 mm × 93 mm |
| Installation Method | Panel type, wall-mounted |
| Weight | 0.56 kg |
| IP Grade | IP65 |
| Number of Sensors | Can connect 4 sensors at the same time |
| Power Consumption | < 5W |
| Current Output | Two-way 4 mA to 20 mA / 0 mA to 20 mA |
| RS485 Output | One-way output, MODBUS-RTU / JSON |
| Relay Output | Two-way normally open (10A 250VAC), one can be used for a timing relay |
| Data Storage | Default 100,000 (customizable) |
| Measurement Environment | 0°C to 60°C, humidity < 90% RH |
Probe Technical Specifications:
| Measuring Range | Dissolved Oxygen: 0 to 25 mg/L |
| Saturation: 0 to 250% | |
| Working Temperature: 0°C to 55°C | |
| Working Pressure: 0 to 150 kPa | |
| Accuracy | DO: ±0.1 mg/L or ±1% (0–100%) ±0.2 mg/L or ±2% (100 % to 250%) |
| Temperature: ±0.1°C | |
| Pressure: ±0.2 kPa | |
| Dissolved Oxygen Compensation | Temperature: 0°C to 50°C automatic compensation |
| Pressure: Instrument-side program or manual | |
| Salinity: Instrument program or manual | |
| Calibration | One-point calibration: Saturation 100% |
| Two-point calibration: 1st point = 0% (zero oxygen water); 2nd point = 100% saturation | |
| Response Time | Saturation T90 < 60s (drop from 100% to 10%) |
| Storage Temperature | -20 °C to 80°C |
| Waterproof Level | IP68 Fixed installation, underwater sinking up to 100 meters |
| Working Power Supply | DC 12 VDC to 36 VDC (current ≥ 50 mA) |
| Power Consumption | ≤ 40 mA (12V DC supply) |
| Data Output | Digital signal: MODBUS-RS485; Analog signal: 4 to 20 mA, 0V to 5V (optional) |
| Material | Diaphragm cap: PVC/PMMA; Shell: PVC (others optional like PP/PPS/titanium alloy) |
| Rated Power | < 0.5W |
| Installation Method | 3/4 NPT pipe thread installation at the end |
| Wire Length | Standard: 10 meters (options: 5, 20 to 200 meters) |
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