Calibration Solutions
$105
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Brand | Hanna |
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Model# | HI746 |
Weight | 64 g (2.25 oz.) |
Dimensions | 86.0 mm x 61.0 mm x 37.5 mm (3.4 x 2.4 x 1.5) |
Environment | 0 to 50C (32 to 122F)| RH max 95% non-condensing |
Battery Type/Life | (1) 1.5V AAA |
Ordering Information | HI746 Checker is supplied with (2) sample cuvettes with caps| reagents for starter kit for 25 tests| (2) 25 mL glass cylinders with caps| cloth for wiping cuvettes| battery| instructions manual and quick reference.? |
Automatic Shut-Off | after ten minutes of non-use |
Photometer/Colorimeter Light Source | LED @ 575 nm |
Photometer/Colorimeter Light Detector | Silicon Photocell |
Iron Range | 0 to 999 ppb |
Iron Resolution | 1 ppb |
Iron Accuracy | 20 ppb 5% of reading |
Iron Method | adaptation of the TPTZ method. |
The Hanna Iron Low-Range Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Iron Low-Range Checker uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.
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