Hanna HI-96733 Ammonia High Range Portable Photometer

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Hanna HI-96733 Ammonia High Range Portable Photometer

The HI96733 portable photometer is for the measurement of ammonium in freshwater samples. 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 standards traceable to a NIST Standard for performance verification and calibration.

Product Description

Hanna HI-96733 Ammonia High Range Portable Photometer

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The HI96733 portable photometer is for the measurement of ammonium in freshwater samples. 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 standards traceable to a NIST Standard for performance verification 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 – Allows the use of a timer to ensure the appropriate 3 minutes and 30 seconds reaction time is used for the chemical reaction. At the end of the timer countdown 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.

photometer optical system

Present naturally in surface and wastewaters, ammonia is largely present from deamination of organic nitrogen-containing compounds and hydrolysis of urea.  Ammonia may also be present from water treatment processes that utilize chloramines for disinfection, where ammonia is added to the water to react with chlorine. Ammonia is less likely to appear in groundwater due to adsorption to soil particles.

The HI96733 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92 Nessler method to measure ammonia nitorgen concentrations of less than 50.0 mg/L (ppm) as ammonium. When the Nessler reagent is added to samples containing ammonia nitrogen, the sample will turn a yellow 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 complimentary color, and the emitted radiation is dependent upon concentration. For higher levels of ammonia, a narrow band interference filter at 420 nm (violet) allows only violet 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 HI96733 is available as a kit (HI96733C) which includes

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

*Reagents ordered separately

cal check standards

CAL Check™ standards with certificate

The HI96733-11 CAL Checkstandards 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

Specifications Hanna HI-96733 Ammonia High Range Portable Photometer

 
SKUHI96733-web
Product NameAmmonia High Range Portable Photometer – HI96733
Quote RequiredYes
Ammonia Range0.0 to 50.0 mg/L (ppm) as NH₄+
Ammonia Resolution0.01 mg/L (ppm)
Ammonia Accuracy±0.5 mg/L ±5% of reading
Ammonia Methodadaptation of the ASTM Manual of Water and Environmental Technology, D1426-93, Nessler method
Photometer/Colorimeter Light Sourcetungsten lamp
Photometer/Colorimeter Light Detectorsilicon photocell with narrow band interference filter @ 420 nm
Battery Type/Life9V battery
Automatic Shut-Offafter ten minutes of non-use in measurement mode; after one hour of non-use in calibration mode; with last reading reminder
Environment0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight360g (12.7oz.)
Dimensions193 x 104 x 69 mm (7.6 x 4.1 x 2.7”)
Ordering InformationHI96733 is supplied with sample cuvettes (2) with caps, 9V battery, instrument quality certificate and instruction manual.

 


Hanna HI-96733 – Manual


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Additional Information

Brand

Hanna

Model

HI-96733

Made In

Romania

Weight

1,5 kg

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