Online monitoring instrument for alkalinity (total alkalinity) of water quality
Product Introduction
The principle of the titration method alkalinity online monitoring instrument is based on acid-base titration method. The instrument introduces the water sample to be tested into the reaction unit through a precise injection system. The water sample reacts with a specific acid standard solution, and as the titrant is added dropwise, the alkaline components in the water sample are gradually neutralized. At the same time, the color of the reaction solution also changes. When the color change reaches the preset endpoint, it is considered that the alkaline substances in the water sample have been completely consumed. At this point, the instrument will calculate the alkalinity value of the water sample based on the consumption of titrant and reaction conditions.
Performance parameters
| Technical Specifications | Parameter Values |
|---|---|
| Measurement Method | National Standard Titration Method |
| Execution Standard | GB/T 14419-2018 |
| Measuring Range | 0.00~5.00 mmol/L (Phenolphthalein Alkalinity) 0.00~10.00 mmol/L (Methyl Orange Alkalinity) |
| Measuring Period | ≤15 minutes |
| Precision | ≤5% F.S. (using standard solution at 50% of full scale) |
| Application Industries | Process monitoring of industrial water in power, chemical and steel industries, as well as water quality monitoring of wastewater, drinking water and surface water. |
| Automatic Cleaning | Yes |
| Ambient Temperature | 5~28℃ |
| Relative Humidity | 5~95% |
| Sample Requirements | Turbidity <50 NTU, maximum particle size 100 μm < 0.1g/L |
| Sampling Method | Via external overflow container |
| Reagent Consumption | 260 tests or 500 tests |
| Power Supply | 110-240 VAC, 4A, 50/60 Hz |
| Maximum Power Consumption | 150 VA |
| Analog Signal Output | 4-20 mA, max. 500Ω load |
| Digital Signal Output | Supports RS485 (Modbus RTU) / Ethernet (Modbus TCP) |
| Enclosure Protection | IP67 |
| Dimensions (H×D×W) | 600×300×500 mm |
| Weight | 30 kg |