Overview
This GAO Tek Digital Multi-Parameter Water Analyzer is a high-performance industrial water quality analyzer built to provide real-time, accurate monitoring of multiple water parameters. Compatible with a wide range of digital sensors, it can measure pH, ORP, dissolved oxygen, conductivity, turbidity, and sludge concentration in various industrial and environmental settings. With 4-20 mA, RS-485 Modbus-RTU, and relay outputs, this device ensures seamless integration into process control systems, making it ideal for water treatment facilities, chemical plants, food & beverage production, and wastewater management
Features
- Multi-parameter capability: Monitors pH, ORP, dissolved oxygen, conductivity, turbidity, and sludge concentration.
- User-friendly display: 2.8″ monochrome LCD with 128×64 resolution for clear readings.
- Multiple outputs: 4-20 mA, RS-485 Modbus-RTU, and dual relay alarms.
- Reliable power: Operates on AC 100-240 V or optional 24 V DC supply.
- Signal isolation: Prevents interference for precise data collection.
- Custom alarms: High/low limit alarms with 250 VAC / 3 A relay capacity.
- Rugged design: Built for harsh industrial environments.
- Security lock: Password protection to avoid unauthorized changes.
Technical specifications
| Parameter | Details |
| Display | 2.8-inch monochrome LCD screen, resolution 128×64 |
| Monitoring Parameters | pH, ORP, Conductivity, Dissolved Oxygen (DO), Turbidity, Sludge Concentration |
| Display Range | pH: 0 to 14 pH ORP: -2000 to 2000 mV DO: 0 to 40 mg/L Saturation: 0 to 200% Conductivity: 0 to 600 mS/cm Turbidity: 0 to 4000 NTU Sludge Concentration: 0 to 120,000 mg/L |
| Current Output | 4 to 20 mA, load capacity 500 Ω, output accuracy ±0.2% FS |
| RS-485 Output | Isolated, Modbus-RTU communication |
| Alarm | 2 channels, capacity AC 250 V / 3 A |
| Distribution Output | 12 V / 125 mA |
| Relative Humidity | 10 to 85% (non-condensing) |
| Working Temperature | 0 °C to 60 °C (32 °F to 140 °F) |
| Input Power Supply | AC: 100 – 240 VAC DC: 24 VDC (Optional) |
| Storage Temperature | -15 °C to 65 °C (5 °F to 149 °F) |
| Storage Humidity | 5 to 95% (non-condensing) |
| Maximum Installation Height | < 2000 meters |
| Dimension | 3.94 in × 3.94 in × 5.91 in (100 mm × 100 mm × 150 mm) |
| Hole Size | 3.64 in × 3.64 in (92.5 mm × 92.5 mm) |
