Water Hardness Meter with Ion Concentration Modes
Benchtop water hardness meter that reads hardness directly from a hardness-sensitive electrode against calibration standards, with a general ion-concentration mode on the same instrument.
Typical applications
- Boiler and cooling-water hardness
- Drinking water and softener plant monitoring
- Laundry and process water control
- Ion concentration measurement with an ISE
- Environmental water testing
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Add as many products as you need and send one enquiry covering all of them, or send this item on its own. Bulk and drum quantities are quoted on request.
Worth knowing before you order
This measures hardness potentiometrically against hardness standard solutions, not by EDTA titration, so it is calibrated in mmol/L over two to five points and 10 and 100 mmol/L standards come with it; the other calibration points and all replacement standards are a recurring purchase, and the hardness electrode is a consumable whose slope the meter stores and tracks. Results are read in ppm, mg/L, mol/L or mmol/L — the catalogue prints no conversion to degrees of hardness, so a specification written in °dH or grains per gallon will have to be converted by hand. The thermal printer is an optional extra, not standard supply.Specification
| Water hardness range | 0.05 to 200 mmol/L (concentration) |
|---|---|
| Water hardness accuracy | ± 1% FS |
| Water hardness resolution | 0.001, 0.01, 0.1, 1, automatic |
| Hardness calibration | 2 to 5 points; 0.01 / 0.1 / 1 / 10 / 100 mmol/L |
| Ion range | 0.001 to 30000 mmol/L, depending on the ion-selective electrode range |
| Ion accuracy | ± 0.5% FS and ± 1% FS |
| Ion resolution | 0.001, 0.01, 0.1, 1, automatic |
| Ion calibration | 2 to 5 points; 0.001 / 0.01 / 0.1 / 1 / 10 / 100 / 1000 / 10000 mmol/L |
| Ion measurement methods | Direct reading, known addition, known subtraction, sample addition, sample subtraction |
| Measurement units | ppm, mg/L, mol/L, mmol/L |
| Electrode management | Stores and recalls up to 3 electrode slopes |
| Temperature range / accuracy / resolution | 0–105 °C / ± 0.5 °C / 0.1 °C |
| Temperature compensation | 0–100 °C, manual or automatic |
| Calibration due alarm | 1 to 31 days or off |
| Password protection | Yes, 4 digits |
| Memory | 1000 data sets |
| Connector | BNC |
| Display | 7 in TFT LCD |
| Printer | Thermal printer optional (model TP9) |
| Power requirements | DC 12 V from AC adaptor, 220 V AC / 50 Hz |
| Packing dimensions (L x W x H) | 310 x 250 x 190 mm |
| Gross weight | 2 kg |
Support available
- Installation & commissioning
- Calibration
- Operator training
- Annual maintenance contract
- Spares & consumables
Calibration is arranged through NABL-accredited laboratories under the relevant scope. We state the scope and the certificate number on the quotation — see what accreditation actually covers.
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