pH متر قلمی Hanna مدل HI98127

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نقد و بررسی تخصصی pH متر قلمی Hanna مدل HI98127

pH متر قلمی Hanna مدل HI98127 ساخت آمریکا با دقت 0.1 PH و شارژ طولانی مناسب برای اندازه گیری pH و دما با دقت معمولی

از ویژگی های این محصول ضد آب بودن، کالیبراسیون اتوماتیک و مصرف کم باتری می باشد که آن را برای مصارف صنعتی بسیار کارآمد کرده است.

The Hanna pHep®۴ 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®۴ 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®۴ 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®۴ 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 startupLow Battery IndicatorAuto-off

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