HI 93741
Total Hardness and Iron Photometer with 555 nm LED
HI 93741 can provide critical measurements of low range iron and total hardness (magnesium and calcium).
The iron concentration in water needs to be monitored since it can become harmful above certain levels. In domestic water, for instance, iron can alter the taste and make it unpleasant to drink. It can also stain laundry, damage kitchen wares and favor the growth of certain bacteria. Low levels of iron are also critical in beverage production.
Hardness, on the other hand, is indicative of the presence of calcium and magnesium in water. By passing through various layers of soil and rocks, rain water dissolves some of the mineral substances.
Hardness is a consequence of the type of rock layers which the water passes through and of its permanence in the water bearing stratum.
Hardness can cause pipe rusting in water heating and cooling systems, reverse osmosis and demineralization plants. It can also increase the consumption of soaps and detergents in industrial washing machines or laundries.
With the portable HI 93741 you can keep a watchful eye over both iron and hardness levels.
Order Information:
HI 93741 is supplied with 3 cuvets, battery and instructions.
Specifications
| Range | Iron | 0 to 400 µg/L |
| Range | Total Hardness | 0.00 to 4.70 mg/L |
| Resolution | Iron | 1 µg/L |
| Resolution | Total Hardness | 0.01 mg/L |
| Accuracy | Iron | ±10 µg/L ±8% of reading |
| Accuracy | Total Hardness | ±0.11 mg/L ±5% of reading |
| Light Source | LED 555 nm | |
| Light Life | Life of the instrument | |
| Light Detection | Silicon Photocell | |
| Battery Type / Life | 1 x 9V / approx. 40 hours of continuous use; auto-off after 10 minutes of non use | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Dimensions | 180 x 83 x 46 mm (7.1 x 3.3 x 1.8″) | |
| Weight | 290 g (10 oz.) | |
| Method | Iron | Adaptation of the TPTZ method |
| Method | Total Hardness | Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th ed. |
| Solutions | |
| HI 93703-50 | Solution for Cleaning Cuvets |
| Accessories | |
| HI 731321 | Glass Cuvet for HI 937xx & HI 832xx Series Meters |
| HI 731325 | Cuvet Cap Turbidity Meters & HI 937xx Series Meters |
| HI 710009 | Shockproof Boot, Blue |
| HI 710010 | Shockproof Boot, Orange |
| HI 731318 | Tissue for Wiping Cuvets |
| Reagents & Standards | |
| HI 93746-01 | Iron LR, TPTZ Method (100 Tests) |
| HI 93746-03 | Iron LR, TPTZ Method (300 Tests) |
| HI 93719-01 | Hardness, Magnesium, EDTA Method (100 Tests) |
| HI 93719-03 | Hardness, Magnesium, EDTA Method (300 Tests) |
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