Hanna Instruments

Scientific Equipment

HI-96710C Total Chlorine and pH Photometer Kit

HI-96710C Total Chlorine and pH Photometer Kit

HI-96710C Total Chlorine and pH Photometer Kit

HI-96710C Total Chlorine and pH Photometer Kit

Complete with Cal Check standards
2 year manufacturer warranty
In Stock
£578.50 (exc. VAT) £694.20 (inc. VAT)

Kit including HI 96710 photometer, hard carrying case, 2 sample cuvettes, scissors, cuvette cleaning cloth, battery, instruction manual and CAL CHECK standards for total chlorine and pH. Testing reagents sold separately.


Other features:

  • CAL Check™ allows for performance verification and calibration of the meter using NIST traceable standards.
  • Auto shut-off
  • Built-in timer - Display of time remaining before a measurement is taken
  • HI-96710C Total Chlorine and pH Photometer Kit information

    Hanna's extended description

    Kit including HI-96710 photometer, hard carrying case, 2 sample cuvettes, scissors, cuvette cleaning cloth, battery, instruction manual and CAL CHECK standards for total chlorine and pH. Testing reagents sold separately.

    Significance of use

    Three critical parameters that can be tested to ensure good water quality are pH, free chlorine, and total chlorine. Chlorine is one of the most commonly used disinfectants for drinking water, wastewater, and water used for pools and spas. It can be added to in various forms including calcium hypochlorite, sodium hypochlorite, or in some instances, chlorine gas. When added to water, chlorine creates hypochlorous acid (HOCl) which dissociates into hypochlorite ion (OCl-).

    HOCl is the form of chlorine that acts as a stronger disinfectant as compared to OCl-. To ensure the added chlorine is effective at sanitising, the pH of the water must be taken into account. Around pH 7.5, HOCl and OCl- are present in relatively equal amounts. Below pH 7.5, the equilibrium shifts to favour HOCl. Above pH 7.5, the equilibrium shifts in favour of OCL-. Depending on the application, addition of chlorine is effective when added to water with a neutral or slightly acidic pH value.

    When chlorine is first added to water, it is available as free chlorine. The measurement of free chlorine signifies the amount available for disinfection. Once chlorine begins to sanitise bacteria and pathogens present in the water, it becomes combined chlorine. Combined chlorine is no longer available to act as a disinfectant. The measurement of total chlorine signifies the amount of free chlorine and combined chlorine. With both free and total chlorine measurements, a drinking water operator or pool owner can determine if there is enough chlorine available for disinfection.

    Water Resistant – Can withstand temporary exposure to water, but should not be submerged or washed under running water.

    Battery powered – Allows use away from a power source. Batteries are included with all battery operated products.

    Specifications

    Specifications list

    Specifications

    Absorbance Specifications
    Light Source tungsten lamp
    Light Detector Silicon photocell with narrow band interference filter @ 525 nm

    pH Specifications
    Range 6.5 to 8.5 pH
    Resolution 0.1 pH
    Accuracy ±0.1 pH
    Method Phenol red method

    Free Chlorine and Total Chlorine specifications
    Range 0.00 to 5.00 mg/L (ppm)
    Resolution 0.01 mg/L under 3.50 mg/L; 0.10 mg/L above 3.50 mg/L
    Accuracy ±0.03 mg/L (ppm) ±3% of reading
    Method adaptation of the USEPA DPD method

    Additional Specifications
    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
    Weight 320g
    Battery type 9V battery
    Dimensions 192 x 104 x 69 mm
    Ordering Information: HI-96710C is supplied with photometer, CAL Check standards, sample cuvettes (2) with caps, 9V battery, scissors, cuvette wiping cloth, rigid carry case, instrument quality certificate and instruction manual
    Warranty 2 years

    Downloadable Manuals

    Manuals

    Download PDF

    Product Literature

    literature - PDF

    Hanna Instruments Literature

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