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Additional Information
Water hardness can affect equipment performance, process efficiency, and finished-product quality. The NT Sensors Automatic Online Water Hardness Analyzer provides unattended, reagent-free measurement of calcium and magnesium, helping operators identify changing conditions and maintain better control of their water systems.
The analyzer uses separate ion-selective electrodes to measure calcium and magnesium independently. Automatic sampling, calibration, and cleaning reduce routine operator involvement, while Modbus TCP/IP or webserver connectivity provides remote access to measurement data. Its IP66-rated enclosure supports installation in demanding environments, including boiler feedwater systems, cooling towers, water treatment processes, and irrigation networks.
Water Hardness Analyzer Specifications
Review measurement, automation, communication, and installation requirements for the automatic online calcium and magnesium analyzer.
| Measured parameters | Calcium (Ca²⁺) and magnesium (Mg²⁺) |
|---|---|
| Measurement technology | Ion-selective electrodes (ISE) |
| Monitoring method | Automatic online measurement |
| Analysis frequency | Configurable from 1 to 125 measurements per day |
| Minimum sample volume | Approximately 100 mL per analysis |
| Sample temperature | 10–35°C (50–95°F) |
| Automatic functions | Sampling, calibration, measurement, and cleaning |
|---|---|
| Reagents | No analytical reagents required |
| Calibration | Automatic calibration |
| Cleaning | Automatic sensor cleaning |
| Operator involvement | Designed for unattended, scheduled operation |
| Maintenance | Reduced routine maintenance through automatic calibration and cleaning |
| Communication options | Modbus TCP/IP or embedded webserver |
|---|---|
| Remote access | Browser-based access through the webserver configuration |
| System integration | Compatible with SCADA, PLC, and industrial control systems |
| Data availability | Measurement results available for remote process monitoring |
| Enclosure rating | IP66 |
|---|---|
| Installation | Panel-mounted |
| Dimensions | 300 × 400 × 180 mm (11.8 × 15.7 × 7.1 in.) |
| Weight | Approximately 4.7 kg (10.4 lb) |
| Sample connection | 1/4-inch tubing |
| Maximum sample pressure | 1 bar (approximately 14.5 psi) |
| Power supply | 85–240 VAC / 12 VDC, 2 A |
| Product reference | A7-30X-200 |
Specifications may vary with the selected configuration and application. Contact AWM Instruments to confirm sample conditions, measurement range, connectivity, and installation requirements.
Automatic Water Hardness Monitoring Applications
Continuous calcium and magnesium data helps operators manage scaling, verify treatment performance, and maintain consistent water quality.
Boiler Feedwater
Monitor calcium and magnesium entering boiler systems to support softener control and reduce scale-related operating problems.
Cooling Towers
Track hardness conditions that contribute to mineral deposits in heat exchangers, piping, and recirculating cooling-water systems.
Water Treatment
Evaluate incoming water and treated-water hardness while monitoring softening and conditioning processes.
Municipal Water
Monitor calcium and magnesium concentrations to support distribution system management and consistent finished-water quality.
Irrigation & Fertigation
Measure hardness-related ions in source water and nutrient solutions to help manage deposits and irrigation-system performance.
Food & Beverage
Maintain consistent process-water characteristics for production, equipment protection, cleaning systems, and quality control.
