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Hanna Checker®HC Handheld Colorimeter - Chromium VI LR - HI749
Item #:
HI749
Brand:
Hanna Instruments
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HI749 Checker®HC Handheld Colorimeter - Chromium VI LR by Hanna Instruments
The HI 749 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of chromium VI in fresh water. Designed as a more accurate alternative to chemical test kits, the HI 749 provides quick, accurate results in four easy steps.
1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four - Reinsert sample and click the button to measure your results or… - Press and hold the button for 3 seconds for a time reaction reading
The HI 749 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample.
Features/Benefits:
- Small palm-sized design
- Accurate from ±3 ppb ±5% of reading
- Dedicated to a single parameter
- Uses a single AAA battery
- Auto Power Off after 10 minutes in inactivity
- Built-in timer for timed reaction readings
Primary Applications:
- Water Quality
- Education
- Plating
- Environmental
Order Information:
The HI 749 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of chromium VI LR reagent), 1 x 1.5V AAA battery, and an instruction manual.
Range | 0 to 300 ppb |
Resolution | 1 ppb |
Accuracy (@25°C/77°F) | ±3 ppb ±5% of reading |
Measurement Method | Colorimetric |
Light Source | Photodiode @525 nm |
Light Detector | Silicon photocell |
Method | Adaptation of ASTM Manual of Water & Environmental Technology, D1687-92, Diphenylcarbohydrazide method. The reaction between chromium VI and the reagent causes a purple tint in the sample. |
Power Supply | Battery - 1 x 1.5V AAA |
Power Auto Off | After 10 min. of inactivity |
Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) |
Weight | 64 g (2.25 oz.) |