Hanna HI 721 Free Iron Range: 0.00 to 5.00 ppm(mg/L)
Hanna Instruments HI721 Checker Iron Free Range – Easier to use and more accurate than chemical test kits
Phenanthroline method Accuracy ±0.04 ppm (mg/L) ±2% of reading0.01 ppm (mg/L) resolution (250 points)Large, easy to read digits Autoshut-off.
Dedicated to a single parameter
Designed to work with HANNA’s powder reagents Uses 10 mL glass cuvettes.
Small Size, Big Convenience
Weighing a mere 65g (2.3 oz.), the Checker®HC easily fits into the palmof your hand or pocket.Use for quick and accurate on the spotanalysis.Single button operation: Zero and Measure Operated by a singleAAA battery.
Ideal for
Industrial, ground and treated waters, mining leachate monitoring and agricultural irrigation water.
ACCURATE AND AFFORDABLE IRON MEASUREMENT
About 6.3% of the earths crust is made of iron, of which 43% is insoils. The analysis of iron is often performed to monitor ground waterand irrigation waters as a gauge of corrosion from industrial settling,and as an indication of the effectiveness of treatment from miningleachate. The HANNA HI 721 Checker®HC bridges the gap between simplechemical test kits and professional instrumentation. Chemical test kitsare not very accurate and only give 5 to 10 points resolution whileprofessional instrumentation can cost hundreds of dollars and can betime consuming to calibrate and maintain. The HANNA HI 721 Checker®HC isaccurate and affordable with immediate results. The new HI 721Checker®HC portable handheld colorimeter features a resolution of 0.01ppm (250 points) and 2% ±0.04 ppm accuracy of reading. The HI 721Checker®HC uses an adaptation of Standard Method 3500-Fe B. Thecontoured style of this Checker®HC fits in your palm and pocketperfectly and the large LCD is easy to read. The auto shut-off featureassures the battery life will not be drained if you forget to turn itoff. The HI 721 Checker®HC is extremely simple to use. First, zero theinstrument with your water sample. Next, add the reagent. Last, Placethe vial into the HI 721 Checker®HC, press the button and read theresults. It’s that easy.
| Range | 0.00 to 5.00 ppm (mg/L) | |
| Resolution | 0.01 ppm (mg/L) | |
| Precision | 2% of reading ±0.04 ppm (mg/L) @ 25°C | |
| Light Source | LED @ 525 nm | |
| Light Detector | Silicon photocell | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Battery Type | (1) 1.5V AAA | |
| Auto-off | After 2 minutes of non-use and after read | |
| Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) | |
| Weight | 64 g (2.25 oz.) | |
| Method | Adaptation of Standard Method 3500-Fe B. |
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