Hanna Instruments (M) Sdn Bhd
11A, Jalan PJS 11/20,
Bandar Sunway,
46150 Petaling Jaya,
Selangor, Malaysia.
+603-5638 9940
+603-5638 9829
Penang Branch Office
Hanna Instruments (M) Sdn Bhd
N0. 303-2-27, Krystal Point,
Jalan Sultan Azlan Shah,
11900 Sungai Nibong,
Penang, Malaysia.
+604-638 4558
+604-645 4558
penang@hannamalaysia.com

Sabah Branch Office
Hanna Instruments (M) Sdn Bhd

No. 4-1, 1st Floor,
Plaza Kingfisher,
Jalan Plaza Kingfisher 5,
Inanam, 88450 Kota Kinabalu,
Sabah, East Malaysia.
088-382 941
088-382 942
sabah@hannamalaysia.com

HI96786 Nitrate Portable Photometer

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HI96786 Nitrate Portable Photometer Portable Photometers
RM 1,198.00
500 g
Out of Stock


Download Files

ist96786_21_12_2010.pdf (619.61 KB)
The HI96786 Nitrate Portable Photometer combines accuracy and ease of use in an ergonomic, portable design. Using the HI93728-0 ready made reagents a user can accurately determine the concentration of nitrate in samples within a 0 to 100 mg/L (ppm) range.The HI96786 offers many advanced features including the exclusive CAL Check™ function used for performance verification and calibration of the meter.

  • CAL Check™ Validation and Calibration
  • Built-in Timer
  • Automatic Shut Off

Details

The HI96786 portable photometer is for the measurement of nitrate. Hanna's portable photometers feature an advanced optical system; the combination of a special tungsten lamp, a narrow band interference filter, and silicon photodetector ensure accurate photometric readings every time. The Hanna exclusive CAL Check feature utilizes ready-made, NIST traceable standards to verify both meter validation and calibration. The exclusive cuvette locking system ensures that the cuvette is inserted into the measurement cell in the same position every time to maintain a consistent path length.

Features at-a-glance

CAL Check - Allows for performance verification and calibration of the meter using a CAL Check NIST traceable secondary standard.

GLP - Records the date of the last user calibration performed.

Built in timer - Ensures the appropriate reaction time is used for the chemical reaction. At the end of the timer the meter will automatically take the reading. This feature ensures consistency across multiple users.

Indexing indent on meter - The meter has an indent that allows for a lock and key fit with the cuvette cap. This ensures that the cuvette is indexed consistently (same position) in order to maintain the same path length for accurate results.

Cooling Lamp Indicator - It is necessary to maintain a consistent temperature of the optical components in order to maintain a narrow wavelength band of light. This photometer has a cooling lamp indicator that is displayed for a short period of time before each measurement in order to allow the components to cool and obtain the highest accuracy possible.

Error messages - Messages on display alerting to problems including no cap, over range and under range readings, and light source error.

Auto-shut off - Automatic shut off after 10 minutes of non-use when the meter is in measurement mode. Prevents wastage of batteries in the event the meter is accidentally not turned off.

Battery status indicator

The instrument has a battery level indicator to display reaming life as follows:

• 3 lines for 100 % capacity

• 2 lines for 66 % capacity

• 1 line for 33 % capacity

• Battery icon blinks when the capacity is less than 10 %.

Units of measure - Appropriate unit of measure is displayed along with reading.



optical system

Nitrogen is abundant in the Earth’s atmosphere and is present in water in the form of nitrate, nitrite, and ammonia. Plants use nitrogen as a nutrient to build proteins by tracking it in through their root system. Nitrate is formed in water mainly through rainfall, decomposition of organic matter, and runoff from manmade pollutants such as sewage waste and fertilizers. Almost all surface waters have a measurable level of nitrate, and a moderate amount is considered beneficial. Large amounts of nitrate, however, can lead to eutrophication which may result in decreased levels of dissolved oxygen in the water.

The HI96786 uses an adaptation of the cadmium reduction method to measure nitrate concentrations of less than 100 mg/L (ppm). When the reagent is added to samples containing nitrate, the sample will turn an amber hue; the greater the concentration, the deeper the color. The associated color change is then colorimetrically analyzed according to the Beer-Lambert Law. This principle states that light is absorbed by a complementary color, and the emitted radiation is dependent upon concentration. For nitrate determination, a narrow band interference filter at 525 nm (green) allows only green light to be detected by the silicon photodetector and omits all other visible light emitted from the tungsten lamp. As the change in color of the reacted sample increases, absorbance of the specific wavelength of light also increases, while transmittance decreases.





The HI96786 is available as a kit (HI96786C) which includes:

  • Portable Photometer
  • Sample cuvettes (2)
  • Caps
  • CAL Check™ standards with certificate
  • Cuvette cleaning cloth
  • Scissors
  • Rugged carrying case
    • Carrying case has thermoformed insert for meter and accessories

*Reagents ordered separately  



cal check standards                                                                                                

CAL Check™ standards with certificate

The HI96786-11 CAL Check standards are used for calibration and performance verification of photometers with the CAL Check function.

Supplied with Certificate of Analysis

  • Lot number
  • Expiration date
  • Standard value @ 25 °C
  • Reference meter NIST traceable

Provided storage containers

  • Light tight
  • Protects from accidental breakage

photometer steps
 

Absorbance Specifications

Light Source tungsten lamp
Light Detector silicon photocell with narrow band interference filter @ 525 nm


Nitrate Specifications

Nitrate Range 0 to 100 mg/L (ppm) nitrate
Nitrate Resolution 1 mg/L
Nitrate Accuracy ±5 mg/L ±5% of reading
Nitrate Method adaptation of the cadmium reduction method

Additional Specifications

Auto-off after ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight 360g (12.7oz.)
Battery Type 9V battery
Dimensions 193 x 104 x 69 mm (7.6 x 4.1 x 2.7”)
Ordering Information HI96786 is supplied with sample cuvettes (2) with caps, 9V battery, instrument quality certificate and instruction manual.

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Free delivery within Selangor and Kuala Lumpur territory

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