Description
Overview
GAOTek industrial water quality pH meters is an online intelligent residual chlorine detector that uses imported components and permeable membrane heads. It is based on the latest polarographic analysis technology and advanced SMT surface mounting technology. It has long-term stable and reliable operation and high accuracy. It is widely used for continuous monitoring and control of residual chlorine content in water solutions such as automatic dosing of circulating water, drinking water treatment plants, drinking water distribution networks, swimming pools, hospital wastewater, water treatment projects, etc.
Features
- Automatic or manual pH compensation
- Automatic or manual temperature compensation
- Relay high and low limit alarm
- Watchdog function: make sure the instrument does not crash
Technical Specifications
| Measuring Range | Residual chlorine: 0 mg/L to 20 mg/L, pH: 0 pH to 14 pH ,Temperature: 32 °F to 140 °F (0 °C to 60 °C) |
| Principle | Polarography |
| Resolution | 0.01 mg/L, 0.01 pH, 33.8 °F (0.1 °C) |
| Accuracy | ±2% or ±0.02 mg/L, ±0.05 pH, ±41 °F (±0.5 °C) |
| Compensation Function | Automatic or Manual pH, Compensation 0 pH to 14 pH, Automatic or Manual Temperature Compensation 32 °F to 140 °F (0 °C to 60 °C) |
| Relay Alarm | One set each for high and low limit alarms 220 V AC 3A |
| Signal Output | 4 mA to 20 mA |
| Communication | RS485 |
| Electrode Cable | 16.40 ft (5 m) |
| Protection Level | IP65 |
| Working Conditions | Ambient temperature: 32 °F to 140 °F (0 °C to 60 °C), Ambient Humidity: ≤ 90 % |
| Power Supply | 220 V AC ±10%, 50 Hz or 60 Hz |
| Size | 3.93 in x 4.13 in x 6.61 in (100 mm × 105 mm × 168 mm) |
| Hole-Cutting Size | 3.62 in x 3.62 in (92 mm x 92 mm) |