Cardy NO3- Tester (Nitrate Ion Meter)
THIS METER HAS BEEN DISCONTINUED AND REPLACED WITH THE B-343
Nitrogen is considered one of the most inportant primary nutrients that plants need to grow. Increased nitrogen fertilization in the last century has lead to huge yield increases of up to 500% for some farmers. However excess fertilization can lead to killing your crops by "Burning" the plants and the roots leading to a terrible yields. Measuring the soil and fertilizer solutions with this meter can help you monitor NO3 to ensure ideal levels are kept.
Excess Nitrates in food is also a huge health hazard leading to nitrate poisoning in humans and animals who eat over fertilized foods and has been proposed as a leading cause of cancer. This meter allows you to monitor foods and animal feed. The University of California (UC Davis) has even proposed an ideal level of NO3 in the sap squeezed from plant leaf petioles at different stages of growth so you can even monitor your plants for excess Nitrate Nitrogen before they bare fruit (see link below).
The Cardy NO3 meter is very easy to use. Rather than a difficult chemical test procedure, measuring the NO3 ion concentration is as simple as placing a tiny sample of liquid on the meter's flat sensor as small as 0.1ml, and reading the accurate digital display.
Highly Affordable
A whole Cardy system -
Main Uses:
- Measuring leaf sap,
- Measuring soil nitrate levels,
- Measuring for excess nitrates in food.
- Measuring foliar and hydroponic fertilizers.
- Measuring concentrations in animal bodily fluids.
- Measuring fruit juices and milk
- Using the sample sheets as a swab, soaked in distilled water and wiping over a hard surface to measure surface nitrate levels.
Main Features
  The measurement process simply involves placing the sample on the meter's flat sensor. Accurate measurements can be taken from samples as small as 0.1ml.
Automatic range switching gives a wide display range and facilitates highly precise measurements.
The meter employs a highly selective flat ion electrode. As it is unreceptive to other ions, the electrode takes highly accurate measurements of nitric acid ion concentrations. The new high molecular weight polymers are longer lasting and more resistant to contamination, giving you more troublefree service and saving money on replacements.
Ultrathin and lightweight, the meter can be easily carried to any location for on-site testing.
NO3 To N Conversion
Remember that when reporting results from a test, it is sometimes standard - such as in soil tests - to report Nitrogen as N. Therefore to convert the results from the Cardy NO3 meter into N, you must multiply the results by 0.226. This is because 22.6% of the atomic weight of NO3 is represented by Nitrogen. For example a 2000ppm NO3 solution contains 452ppm of elemental Nitrogen. Remember that this meter only reports Nitrogen as derived from NO3, it does not represent the total nitrogen or nitrogen present as in other forms.
| MODEL |
Horiba Cardy NO3- Meter |
| Principle |
Nitrate ion electrode method |
| Display |
LCD, 2-digit |
| Guarantee range |
62-6200 ppm
(10-3-10-1 mol/l)* |
| Display range |
0-99 x 100 ppm |
| Resolution |
1 ppm for 0-99 ppm
10 ppm for 10-99 x 10 ppm
100 ppm for 10-99 x 100 ppm |
| Calibration |
2-point calibration by STD/SLOPE
controls using standard calibration solutions
STD:2000 ppm, SLOPE: 150 ppm |
| Repeatability |
±20% of display value |
| Sample temperature |
5-35°C/41-95°F
(temperature compensated at ambient temperature) |
| Power |
CR-2025 lithium cell ( x 2)
approx.500 hrs continuous operation |
| Weight |
Approx.40g, 1.4oz |
| Dimensions |
95 x 55 x 9mm,3.7 x 2.2 x 0.35in |
| Standard accessories |
NO3- standard solution
STD 2000 ppm, SLOPE 150 ppm |
Deionized water, sampling sheet,
tweezers, pipet, instruction booklet |
| Selectivity coefficient (interfering ions) |
l-=7 x 10-10, Cl-=4 x 10-2, Br-=9 x 10-1, ClO4-=3 x 10-3, NO2-=7 x 10-1, pH range: pH 3-8 (at 10-3 mol/l) |
Unit Ship Weight: 1Lb
UC Davis Ideal NO3 levels (45,01 KB)
|
If you are not 100% satisfied with your purchase, you my return it within 30 days of the date of purchase for a refund. We also aim to respond no later than 24 hours, to any customer concerns.
