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Potassium Portable Photometer HI96750

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Potassium Portable Photometer HI96750 Photometers  Water / Liquid Analysis

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The HI96750 Potassium Portable Photometer combines accuracy and ease of use in an ergonomic, portable design. Using the HI93750-01 ready made reagents a user can accurately determine the potassium concentration in samples within a low and medium range. The low range measures from 0.0 to 10.0 mg/L potassium; the medium range measures from 10 to 100 mg/L potassium. Users can simply choose the appropriate range depending on their expected sample concentration. The HI96750 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


The HI96750 portable photometer is for the measurement of potassium. Hanna's portable photometers feature an advanced optical system; the combination of a light emitting diode, 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 NIST traceable standards.

GLP - Review of the last calibration date.

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 left on.

Battery status indicator - Indicates the amount of battery life left.

Built-in timer - Display of time remaining before a measurement is taken. Ensures that all readings are taken at the appropriate reaction intervals for the test being performed.

Error messages - Messages on display alerting to problems including no cap, high zero, and standard too low.

Cooling lamp indicator - To maintain the desirable wavelength to be used for absorbance, it is necessary to ensure components are not overheated from the heat generated by the tungsten lamp. Each photometer is designed to allow a minimal amount of time for components to cool. The cooling lamp indicator is displayed prior to a reading being taken.

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


Range Potassium LR (P1): 0.0 to 10.0 mg/L (ppm); Potassium MR (P2): 10 to 100 mg/L (ppm)
Resolution Potassium LR (P1): 0.1 mg/L; Potassium MR (P2): 1 mg/L
Accuracy @ 25°C (77°F) Potassium LR (P1): ±1.5 mg/L ±7% of reading; Potassium MR (P2): ±15 mg/L ±7% of reading
Light Source light emitting diode
Light Detector silicon photocell with narrow band interference filter @ 466 nm
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
Battery Type 9V battery
Dimensions 193 x 104 x 69 mm (7.6 x 4.1 x 2.7”)
Weight 360g (12.7oz.)
Ordering Information HI96750 is supplied with sample cuvettes (2) with caps, 9V battery, instrument quality certificate, and instruction manual. CAL Check™ standards and testing reagents sold separately.
Warranty 2 years



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