Máy đo Nitrit thang thấp Hanna HI707 (0 to 600 ppb)

Nitrite Low Range Checker® HC-HI707

The Hanna Nitrite 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 Nitrite 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.

Features at-a-glance:

• Easier to use and more accurate than chemical test kits
• Dedicated to a single parameter
• Small size, big convenience
• Ideal for: Water Quality, Environmental, Education, Aquaculture, Boiling and Cooling Towers

Nitrite Range	0 to 600 ppb NO₂-N
Nitrite Resolution	1 ppb
Nitrite Accuracy	±20 ppb ±5% of reading
Nitrite Method	adaptation of the EPA Diazotization method 354.1

Photometer/Colorimeter Light Source	LED @ 470 nm
Photometer/Colorimeter Light Detector	silicon photocell
Battery Type/Life	(1) 1.5V AAA
Automatic Shut-Off	after ten minutes of non-use
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight	64 g (2.25 oz.)
Dimensions	81.5mm x 61mm x 37.5mm (3.2" x 2.4" x 1.5”)
Ordering Information	HI707 Checker® is supplied with (2) sample cuvettes with caps, nitrite LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.

Manual: