Hanna HI749 Checker Chromium VI Low Range

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 HI749 Chromium 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.

Specifications:

Range 0 to 300 ppbResolution 1 ppbAccuracy (@25°C/77°F) ±3 ppb ±5% of readingMeasurement Method ColorimetricLight Source Photodiode @525 nmLight Detector Silicon photocellMethod 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 AAAPower Auto Off After 10 min. of inactivityEnvironment 0 to 50°C (32 to 122°F); RH max 95% non-condensingDimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) Weight 64 g (2.25 oz.)

The HI749 Chromium 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