HI83325 Nutrient Analysis Photometer and pH Meter (Old model HI83225)

Product Code : HI83325

Category : Potassium

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Product information "HI83325 Nutrient Analysis Photometer and pH Meter (Old model HI83225)"
Details

The HI83325 benchtop photometer measures 8 different key water quality parameters using 9 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.

Consistent and thorough monitoring of plant nutrients is essential to maintaining healthy growth and reproduction. This is easy with the HI83325, a comprehensive way to monitor vital plant nutrients such as potassium, calcium and magnesium. Required in large quantities, potassium plays a vital role in water uptake and enzyme regulation. Calcium helps to strengthen plant cell walls protecting against heat stress while magnesium helps build a strong immune system.

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 HI83325 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 three wavelengths of light (420 nm, 466 nm, and 525 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.
pH
pH Range Photometer: 6.5 to 8.5 pH
pH electrode: -2.00 to 16.00 pH
pH Resolution Photometer: 0.1 pH
pH electrode: 0.01 pH
pH Accuracy Photometer: ±0.1 pH
pH electrode: ±0.01 pH
pH Calibration Automatic one or two point calibration with one set of standard buffers available (4.01, 6.86, 7.01, 9.18, 10.01)
pH Temperature Compensation Automatic (-5.0 to 100.0 oC; 23.0 to 212.0 oF); limits reduced based on the pH electrode used
pH CAL Check (electrode diagnostics) clean electrode and check buffer/check probe displayed during calibration
pH Method Photometer: phenol red
pH-mV Range ±1000 mV
pH-mV Resolution 0.1 mV
pH-mV Accuracy ±0.2 mV


Absorbance
Absorbance Range 0.000 to 4.000 Abs
Absorbance Resolution 0.001 Abs
Absorbance Accuracy +/-0.003Abs @ 1.000 Abs


Ammonia
Ammonia Range Low Range: 0.00 to 3.00 mg/L
Medium Range: 0.00 to 10.00 mg/L
High Range: 0.0 to 100.0 mg/L
Ammonia Resolution 0.01 mg/L; 0.1 mg/L
Ammonia Accuracy Low Range: ±0.04 mg/L ±4% of reading
Medium Range: ±0.05 mg/L ±5% of reading
High range: ±0.5 mg/L ±5% of reading
Ammonia Method Adaptation of the ASTM Manual of Water and Environmental Technology, D1426-92, Nessler method


Calcium
Calcium Range Freshwater: 0 to 400 mg/L (as Ca2+)
Calcium Resolution 1 mg/L
Calcium Accuracy Freshwater: ±10 mg/L ±5% of reading
Calcium Method Freshwater: Adaptation of the Oxalate method


Magnesium
Magnesium Range 0 to 150 mg/L (as Mg2+)
Magnesium Resolution 1 mg/L
Magnesium Accuracy ±5 mg/L ±3% of reading
Magnesium Method Adaptation of the Calmagite method


Nitrate
Nitrate Range 0.0 to 30.0 mg/L (as NO3-- N)
Nitrate Resolution 0.1 mg/L
Nitrate Accuracy ±0.5 mg/L ±10% of reading
Nitrate Method Adaptation of the cadmium reduction method


Phosphate
Phosphate Range Freshwater
High range: 0.0 to 30.0 mg/L(as PO43-)
Phosphate Resolution 0.1 mg/L
Phosphate Accuracy ±1 mg/L ±4% of reading
Phosphate Method Adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Amino Acid method


Potassium
Potassium Range 0.0 to 20.0 mg/L (as K)
Potassium Resolution 0.1 mg/L
Potassium Accuracy ±3.0 mg/L ±7% of reading
Potassium Method Adaptation of the Turbidimetric Tetraphenylborate method


Sulfate
Sulfate Range 0 to 150 mg/L (as SO42-)
Sulfate Resolution 1 mg/L
Sulfate Accuracy ±5 mg/L ±3% of reading
Sulfate Method Turbidimetric - Sulfate is precipitated with barium chloride crystals


General Meter
Input Channels 1 pH electrode input and 3 photometer wavelengths
pH Electrode digital pH electrode (not included)
Logging Type log on demand with user name and sample ID optional input
Logging Memory 1000 readings
Connectivity USB-A host for flash drive; micro-USB-B for power and computer connectivity
GLP calibration data for connected pH electrode
Display 128 x 64 pixel LCD with backlight
Battery Type / Life 3.7 VDC Li-polymer rechargeable battery / >500 photometric measurements or 50 hours of continuous pH measurement
Power Supply 5 VDC USB 2.0 power adapter with USB-A to micro-USB-B cable (included)
Environment 0 to 50.0 oC (32 to 122.0 oF); 0 to 95% RH, non-condensing
Dimensions 206 x 177 x 97 mm (8.1 x 7.0 x 3.8")
Weight 1.0 kg (2.2 lbs.)
Photometer/Colorimeter Light Source 3 LEDs with 420 nm, 466 nm, and 525 nm narrow band interference filters
Photometer/Colorimeter Light Detector silicon photodetector
Bandpass Filter Bandwidth 8 nm
Bandpass Filter Wavelength Accuracy ±1 nm
Cuvette Type round, 24.6 mm
Number of Methods 128 max.
Ordering Information HI83225 is supplied with sample cuvettes and caps (4 ea.), cloth for wiping cuvettes, USB to micro USB cable connector, power adapter and instruction manual.