HI96700 Ammonia Low Range Portable Photometer

R 5,667.00 *

Prices excluded VAT and delivery costs

Delivery time approx. 2 to 4 weeks

  • HI96700
The HI96700 Ammonia Low Range Photometer combines accuracy and ease of use in an ergonomic,... more
Product information "HI96700 Ammonia Low Range Portable Photometer"
The HI96700 Ammonia Low Range Photometer combines accuracy and ease of use in an ergonomic, portable design. A user can accurately determine the concentration of ammonia (as NH3-N) in freshwater samples within a 0.00 to 3.00 mg/L (ppm) range using the HI93700-0 ready made reagents. The HI96700 offers many advanced features including the exclusive CAL Check™ function used for performance verification and calibration of the meter.
  • Ready-made reagents ordered separately
  • CAL Check™ validation and calibration option
  • Built-in timer for appropriate reaction interval

 

 

 

 

 

Details

The HI96700 portable photometer is for the measurement of ammonia nitrogen (NH3-N) 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 - 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.

The HI96700 uses an adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92 Nessler method to measure ammonia concentrations of less than 3.00 mg/L (ppm) ammonia-nitrogen. When the Nessler reagent is added to samples containing ammonia, 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 low 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.

photometer optical system


Present naturally in surface and wastewaters, ammonia mainly results from the deamination of organic nitrogen-containing compounds and hydrolysis of urea. Ammonia may also be present from water treatment processes that utilize chloramaines 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 HI96700 is available as a kit (HI96700C) which includes:

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

*Reagents ordered separately

cal check standards

 

CAL Check™ standards with certificate

The HI96700-11 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

 

 

Absorbance Specifications

Light Source tungsten lamp
Light Detector silicon photocell with narrow band interference filter @ 420 nm

 

Additional Specifications

Range 0.00 to 3.00 mg/L (ppm) (as ammonia-nitrogen)
Resolution 0.01 mg/L
Accuracy @ 25°C (77°F) ±0.04 mg/L ±4% of reading
Method adaptation of the ASTM Manual of Water and Environmental Technology, D1426-93, Nessler method
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 HI96700 is supplied with sample cuvettes (2) with caps, 9V battery, instrument quality certificate and instruction manual.
Warranty 2 years
 

 

 

 

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