HI96753 Chloride Portable Photometer

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HI96753 Chloride Portable Photometer

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The HI96753 Chloride Photometer combines accuracy and ease of use in an ergonomic, portable design. Using the HI93753-01 ready made reagents a user can accurately determine the concentration of chloride in samples within a 0.0 to 20.0 mg/L (ppm) range. The HI96753 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 HI96753 portable photometer is for the measurement of chloride. 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, 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.

optical system

As one of the major inorganic anions in water and wastewater, chloride is often measured in a variety of industries. Due to its corrosive nature, chloride levels are monitored in boiler systems and cooling towers to prevent metal parts from being damaged. Not known to be toxic to humans, chloride is monitored in drinking water for aesthetic purposes due to its negative affect on taste. However, chloride can be toxic to plant life. Chloride may be monitored in agricultural applications in certain areas of the world where salinity levels are known to be naturally high.

The HI96753 uses an adaptation of the mercury (II) thiocyanate method to measure chloride concentrations of less than 20.0 mg/L (ppm). When both the mercury (II) thiocyanate and iron based reagents are added to samples containing chloride, the sample will turn an orange 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 complementary color, and the emitted radiation is dependent upon concentration. For chloride determination, a narrow band interference filter at 466 nm (blue) allows only blue 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 HI96753 is available as a kit 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 HI96753-11 CAL Check standards 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
photometer steps



Range 0.0 to 20.0 mg/L (ppm)
Resolution 0.1 mg/L (ppm)
Accuracy @ 25°C (77°F) ±0.5 mg/L ±6% of reading
Light Source light emitting diode
Light Detector silicon photocell with narrow band interference filter @ 466 nm
Method adaptation of the mercury (II) thiocyanate
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 HI96753 is supplied with sample cuvettes (2) with caps, 9V battery, instrument quality certificate and instruction manual. CAL Check™ standards and testing reagents sold separately.

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