Important Notice
This item is made-to-order exclusively for you once your order is placed. As a result, it is not eligible for cancellation or return under our standard policy. Your statutory rights remain unaffected.
Hanna Instruments HI-735 Total Hardness Low Range Checker
- Large LCD
- Single button operation
- Auto shut-off function
SKU
HI-735
MPN
HI-735
The Hanna HI-735 determines total hardness (as CaCO3) in drinking and process water, heating and cooling systems, swimming pools, and spas. It is also suitable for agriculture and food, and beverage industries.
The HI-735 specialises in a single parameter, has a single button operation, a large LCD, an auto shut-off function, and is more accurate than chemical test kits.
Suitable for
- Drinking water
- Process water
- Heating and cooling systems
- Swimming pools, hot tubs and spas
- Agriculture
- Food and Beverage industries
| Water Hardness Guide | ||
|---|---|---|
| Hardness Classification | Parts per million (ppm) | Grains per gallon (gpg)* |
| Very soft | <17.1 | <1.0 |
| Soft | 17.1 to 60 | 1 to 3.5 |
| Moderately hard | 61 to 120 | 3.5 to 7.0 |
| Hard | 120 to 180 | 7.0 to 10.5 |
| Very hard | 180 + | 10.5 + |
| * 1 grain per gallon = 17.1 ppm | ||
What's Included?
- HI-735 Total Hardness Low Range Checker
- Total Hardness Low Range reagent starter kit (reagents 23 tests)
- Sample cuvette and cap (2)
- 1ml graduated syringe with tip (2)
- Plastic refilling pipette
- 1.5V AAA alkaline battery
- Instruction manual
Technical Information
Specification
| Range | 0 to 350 ppm (mg/L) as CaCO3 |
| Resolution | 1 ppm (mg/L) |
| Accuracy | ±6 ppm ±6% of reading @ 25°C |
| Light source | Light Emitting Diode @ 470nm |
| Light Detector | Silicon Photocell |
| Method | Adaptation of the EPA recommended Method 130.1. The reaction between calcium, magnesium, and the reagents causes a red-violet tint in the sample. |
| Environment | 0 to 50°C; max 95% RH non-condensing |
| Battery type | 1.5V AAA Alkaline |
| Auto-off | After 10 minutes of non-use |
| Dimensions | 86.0 x 61.0 x 37.5 mm |
| Weight | 64g |
Document Downloads
Additional Information
SKU
HI-735
Manufacturer Part Code
HI-735
Hanna Instruments HI-735 Total Hardness Low Range Checker
£86.50
£103.80 inc vat
£86.50
£103.80 inc vat