Aquaculture Photometer - HI83303-02

The HI83303 benchtop photometer measures 12 different key water quality parameters using 20 different methods. This photometer features an innovative optical system that uses LEDs, narrow band interference filters, focusing lens and both a silicon photodetector for absorbance measurement and a reference detector to maintain a consistent light source ensures accurate and repeatable photometric readings every time.

Made with the aquaculture industry in mind, the HI83303 is a comprehensive solution to maintaining optimal chemical and environmental conditions, preventing disease and increasing production. The HI83303 measures vital parameters such as alkalinity, calcium, nitrite, and phosphate. Alkalinity plays a part in a dynamic relationship with pH and CO₂ concentrations, high alkalinity water lowers fluctuations in pH. The buffering capacity acts to store extra CO2 essential for photosynthesis in the ponds to produce oxygen. Maintaining calcium at certain levels is vital to proper fish growth and development. Excessive nitrite can be toxic to fish. When nitrite interacts with hemoglobin the iron becomes oxidized and the blood cell can no longer carry oxygen. Phosphate is essential to plant growth; too much phosphate in an aquaculture system can contribute to algal blooms decreasing dissolved oxygen vital for a successful ecosystem.

A digital pH electrode input allows the user to measure pH by a traditional glass electrode. The digital pH electrode has a built-in microchip within the probe that stores all of the calibration information. Having the calibration information stored in the probe allows for hot swapping of pH electrodes without having to recalibrate. All pH measurements are automatically compensated for temperature variations with a built-in thermistor located in the tip of the sensing bulb for fast and accurate temperature measurement.

The HI83303 offers an absorbance measuring mode that allows for CAL Check standards to be used to validate the performance of the system. The absorbance mode allows the user to select one of the five wavelengths of light (420 nm, 466 nm, 525 nm, 575 nm, and 610 nm) to measure and plot their own concentration versus absorbance mode. This is useful for users with their own chemical method and for educators to teach the concept of absorbance by using the Beer-Lambert Law.

Two USB ports are provided for transferring data to a flash drive or computer and to use as a power source for the meter. For added convenience and portability the meter can also operate on an internal 3.7 VDC Lithium-polymer rechargeable battery.

Features/Benefits:

Backlit 128 x 64 Pixel Graphic LCD Display

• Backlit graphic display allows for easy viewing in low light conditions
• The 128 x 64 Pixel LCD allows for a simplified user interface with virtual keys and on-screen help to guide the user through use of the meter

Built-in Reaction Timer for Photometric Measurements

• The measurement is taken after the countdown timer expires.
• Countdown timer ensures that all readings are taken at the appropriate reaction intervals regardless of user for better consistency in measurements

Absorbance mode

• Hanna's exclusive CAL Check cuvettes for validation of light source and detector
• Allows for the user to plot concentration versus absorbance for a specific wavelength for use with user-supplied chemistry or for teaching principles of photometry

Units of Measure

• Appropriate unit of measure along with chemical form is displayed along with reading

Result Conversion

• Automatically convert readings to other chemical forms with the touch of a button

Cuvette Cover

• Aids in preventing stray light from affecting measurements

Digital pH Electrode Input

• Measure pH and temperature with a single probe
• Good Laboratory Practice (GLP) to track calibration information including date, time, buffers used, offset and slope for traceability
• pH CAL Check alerts user to potential problems during the calibration process
• Space saving having a pH meter and photometer built into one meter

Data Logging

• Up to 1000 photometric and pH readings can be stored by simply pressing the dedicated LOG button. Logged readings are just as easily recalled by pressing the RCL button
• Sample ID and User ID information can be added to a logged reading using alphanumeric keypad

Connectivity

• Logged readings can be quickly and easily transferred to a flash drive using the USB-A host port or to a computer using the micro USB-B port
• Data is exported as a .CSV file for use with common spreadsheet programs

Battery Status Indicator

• Indicates the amount of battery life left

Error Messages

• Photometric error messages include no cap, high zero, and standard too low
• pH calibration messages include clean electrode, check buffer and check probe

Advanced Optical System

HI83303 is designed with an innovative optical system that incorporates a beam splitter so that light can be used for absorbance readings and for a reference detector. The reference detector monitors the intensity of light and modulates when there is drift due to power fluctuation or the heating of the optical components. Each part has an important role in providing unparalleled performance from a photometer.