The fully automated HR-100 online water hardness analyzer uses a titration colorimetric method to look at how industrial and municipal water is treated. It gives you real-time information on changes in hardness, quickly and reliably finds total and carbonate hardness in water, and helps with precise chemical dosing, process water compliance, and preventing equipment from scaling. utilized in the mining, steel, petrochemical, pharmaceutical, and food and drink sectors to keep an eye on the quality and hardness of boiler, circulation, and process water.
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Performance Characteristics
- Automatic determination of water hardness through colorimetric experiment method
- Add reagents to the water sample through a peristaltic pump, causing a color reaction
- The concentration of water hardness can be calculated by evaluating the intensity of color or determining at which value the color changes
- The measurement range depends on the type of reagent
- Wall mounted protective cover type (IP54) equipment
Core working principle
The device precisely adds specialized reagents to the water sample through a peristaltic pump, and the reagents undergo specific color reactions with calcium and magnesium ions in the water; The instrument automatically evaluates the color intensity or color mutation threshold, and combines it with the matching reagent model to accurately calculate the hardness concentration of the water sample. The measurement range can be flexibly adjusted by replacing different reagents to meet the hardness monitoring needs of different scenarios.
Parameters
| Item | Specifications |
|---|---|
| Power Supply | 85-265 Vac (47-63Hz) |
| Power Consumption | 25 VA (Operating); 3.5 VA (Standby) |
| Protection Grade | IP54 |
| Installation Type | Wall-mounted (indoor) |
| Dimension | 470×380×200 mm |
| Ambient Temperature | 10°C – 40°C |
| Sample Water Temperature | 5°C – 40°C |
| Humidity | 20-90% RH (No icing or condensation) |
| Sample Water Pressure | Max. 0.5-5 bar (Recommended 1-2 bar) |
| Sample Water Requirement | Clear, colorless, no solid particles/bubbles |
| Water Quality for Measurement | pH: 4–10; Fe < 3 ppm; Cu < 0.2 ppm; Al < 0.1 ppm; Mn < 0.2 ppm; Acid capacity KS 4.3 < 5mmol/l |
| Measuring Method | Titration colorimetric method |
| Accuracy | Measurement accuracy: ±5% of reagent upper limit; Repeat accuracy: ±2.5% of reagent upper limit |
| Reagent Consumption | Approx. 0.20 ml per test (Depending on water hardness) |
| Measuring Time | Approx. 3 mins per test (Depending on water hardness) |
| Reagent Service Life | ≥24 months (Stored in cool & dark place below 25°C) |
| Water Consumption | Approx. 1L per test (at 2 bar pressure) |
| Input (Optional) | 2× Isolated contact signal inputs |
| Output | 4-20 mA analog output (Max. load 500Ω) |
| Optional Output | 4× Relay outputs (NC/NO, Max. 250V AC/DC, 4A); RS-485 MODBUS-RTU communication port |
| Maintenance Cycle | Clean measuring chamber every 6 months; Replace maintenance kit every 50,000 tests |
Why choose HR-100?
- Real-time monitoring: 24-hour online detection, real-time hardness feedback, reducing manual detection lag and inaccuracy.
- It may directly link the softener, dosing pump, and PLC system to alarm for hardness exceeding norms and precisely dose chemicals with rich signal output interfaces.
- Strong adaptability: The optional wide range reagents and industrial grade protection suit the hardness monitoring needs of various industries and water quality.
- Cut costs and boost efficiency: Lower reagent/water consumption, manual testing expenses, equipment lifespan, and system maintenance and cleaning costs.
- Easy to operate: large screen touch operation, automatic calibration, remaining reminder, no requirement for lab staff, lower manual operation threshold.
Featured Applications
- Power industry: monitoring the hardness of boiler feedwater and circulating cooling water to prevent scaling and tube bursting in heat exchangers and boilers
- Petrochemical/Steel Industry: Hardness testing of process circulating water and cooling water to ensure equipment heat transfer efficiency and reduce maintenance costs
- Food and beverage/pharmaceutical: hardness monitoring of production process water and pure water pretreatment to meet industry water quality standards
- Municipal water affairs: hardness testing for tap water and reclaimed water reuse, controlling water quality and adapting to the operation requirements of the pipeline network
Daily maintenance and precautions
Key operating points
- Cleaning the measuring room: Turn off the power and remove the pump box → Remove the measuring room for cleaning → Reinstall the pipeline (without distortion) → Turn on the machine to flush and remove bubbles
- Replace the dosing pump box: power off and remove the old pump box → connect the reagent bottle/dosing plug to the new pump box → tighten the plug → start the machine and drain the foam
- Replacing reagents: Power off to replace reagent bottle → Tighten adapter → Power on to extract reagents, liquid level automatically resets
- Calibration: Record the values of the equipment sample → Synchronize manual laboratory testing → Calculate the calibration coefficient according to the formula and input it
- Battery replacement: Power off and remove control box → Replace CR2032 battery → Check wiring → Reinstall and verify power on
Maintenance precautions
- All operations must be powered off and goggles/gloves must be worn to prevent contact with reagents
- Do not forcefully squeeze during reinstallation to avoid damage to plugs and seals
- Reagents should be stored in a cool and dark place below 25 ℃, and H10030 and above should be temperature calibrated
- Only use original reagents/accessories, rinse and drain after maintenance before use
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The HR-100 online water hardness analyzer has built a strong line of defense against scaling for water treatment systems in many industries. Its main benefits are that it can accurately detect hardness, runs smoothly, and is easy to maintain. This keeps water quality safe and equipment running smoothly. It is the best way to keep an eye on the hardness of water online.
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