Nitrite
ultra low range Checker HC®: Range 0 to 200 ppb
The
Hanna Checker® bridges the gap between simple chemical test kits and
professional instrumentation. Chemical test kits are not very accurate and
only give 5 to 10 points resolution while professional instrumentation can
cost hundreds of dollars and can be time-consuming to calibrate and
maintain. The Checker® is both accurate and affordable.
- Compact,
portable design
- Built-in
timer
- One-Button
operation
Nitrification
is the biological oxidation of ammonia (ammonium ion) into nitrite
followed by the oxidation of the nitrites to nitrates. The first step of
this 2-step process is carried out in an aquarium by nitrifying bacteria.
During this quick process, the ammonium levels drop while the nitrite
levels increase. Since nitrite is just as harmful as ammonia, nitrite
levels should be maintained at immeasurable levels. A mature biological
filter should be able to keep nitrite levels low.
Also,
if tap water is to be used in an aquarium, it is recommended that it be
tested for phosphate, as well as silicate, ammonia, nitrate, nitrite, pH,
and alkalinity.
The
HI-764 Checker® Handheld Colorimeter bridges the gap between simple
chemical test kits and professional instrumentation. Chemical test kits
are not very accurate, while professional instrumentation can cost
hundreds of dollars and can be time-consuming to calibrate and maintain.
Hanna Checker®’s are accurate, affordable and easy to use.
To
begin measurements, first, zero the instrument with your water sample.
Next, add the reagent. Last, place the vial into the Checker®, press the
button and read the results. It’s that easy.
The
contoured style of these Checker®’s fit in your palm and pocket perfectly
and the large LCD is easy to read. The auto shut-off feature assures the
battery life will not be drained if you forget to turn it off.
Features
-
Easier to use and more accurate than chemical test kits
-
Dedicated to a single parameter
-
Small size, big convenience
-
Ideal for: water quality, environmental, plating, education
Specifications
| Nitrite
Range |
0
to 200 ppb |
| Nitrite
Resolution |
1
ppb |
| Nitrite
Accuracy |
±10
ppb ±4% of reading |
| Nitrite
Method |
adaptation
of the EPA Diazotization method 354.1. |
| Photometer/Colorimeter
Light Source |
LED
@ 525 nm |
| Photometer/Colorimeter
Light Detector |
silicon
photocell |
| Battery
Type/Life |
(1)
1.5V AAA |
| Automatic
Shut-Off |
after
two 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”) |
Product Information
Instruction Manual
Brand : Hanna Instruments
