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Hanna HI98127 pHep4 pH/Temperature Tester (REF NO. OBI0005)

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Hanna HI98127 pHep4 pH/Temperature Tester (REF NO. OBI0005) pH Meters Hanna


Hanna HI98127 pHep4 pH/Temperature Tester (REF NO. OBI0005)

with 0.1 pH resolution

Model: HI98127

The Hanna pHep®4 waterproof tester is an advanced meter that has many features found in more expensive portable and benchtop meters. This ergonomic meter features automatic one or two point calibration to known buffer, automatic temperature compensation, battery percent level indicator at start up, and a stability indicator to alert the user when a stable reading has been obtained. The large multi level LCD display that shows both pH and temperature simultaneously. The pHep®4 tester also features a replaceable pH probe that has a unique extendable cloth junction to clear any clogging that occurs.
Waterproof
Replaceable pH electrode with extractable cloth junction
Automatic one or two point pH calibration with auto buffer recognition

 

Details

  • The pHep®4 is a waterproof pH tester with a 0.1 pH resolution and an accuracy of +/- 0.1 pH. It has many advanced features that are found in more expensive portable instrumentation. One or two point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). To calibrate simply press and hold the left power/mode button for three seconds. Depending on buffer set chosen the button is let go once pH 7.01 or pH 6.86 is displayed. The meter is placed in the appropriate buffer. Once the buffer is recognized pH 4.01 will be displayed. For single point calibration the left power/mode button is pressed and the meter will escape to measurement mode. For two point calibration the meter is then placed in the second buffer. The meter will automatically detect the second buffer (i.e. pH 4.01 or pH 10.01). Once the second buffer is recognized the meter will automatically exit to measuring mode.

    The pHep®4 also features a replaceable electrode with a stainless steel round connector. This cartridge design has no pins to line up or that can break. The HI73127 replacement pH electrode also features an extractable cloth junction. Every pH electrode has a junction. Many use a single ceramic frit which acts as a barrier between the inside reference cell to the outside sample. This barrier allows for a diffusion electrolyte that is necessary for the pH measurement. Any clogging of the junction will result in a reduced diffusion and as a result the readings will become erratic. Most probes will have to have this junction cleaned and if not possible then replaced. The extractable cloth junction of the HI73127 allows for the renewing of the junction. Simply extract ⅛” of the junction by pulling on the junction will expose a new portion. Any clogging that was present will be cleared and the response time will be back to normal extending the life of the pH electrode.
     

    Features at-a-glance

    Waterproof

    • Designed to float if accidentally dropped in a tank

    Expanded pH Range

    • pH range is from -2.0 to 16.0 pH

    Automatic Temperature Compensation

    • All readings are compensated for variations in temperature

    • Temperature displayed in °C or °F along with pH reading

    Stability indicator

    • Meter displays a clock tag that will disappear when the reading has achieved stability

    HOLD button

    • Freezes reading on the display to allow recording of measurement

    BEPS (Battery Error Prevention System)

    • Meter will automatically shut off if there is not enough power to get an accurate measurement

    Battery % level at startup
    Low Battery Indicator
    Auto-off

    • Meter automatically shuts off after 8 minutes of non-use to maximize battery life

  • Specifications

     

     

    pH Range

    -2.0 to 16.0 pH

    pH Resolution

    0.1 pH

    pH Accuracy

    ±0.1 pH

    Temperature Range

    -5.0 to 60.0°C / 23.0 to 140.0°F

    Temperature Resolution

    0.1°C / 0.1°F

    Temperature Accuracy

    ±0.5°C /±1°F

    pH Calibration

    automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)

    Temperature Compensation

    automatic

    Battery Type/Life

    1.5V (4) / approx. 300 hours of continuous use; auto-off after 8 minutes of non-use

    Environment

    -5 to 50°C (23 to 122°F); RH max 100%

    Dimensions

    163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’)

    Weight

    100 g (3.5 oz.)

    Ordering Information

    HI98127 (pHep®4) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, batteries and instructions.

       

 

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