PH Meter Portable Table Top


Portable pH Meter, Portable Laboratory Use 1 Year Warranty
6-7 years nominal Life in Normal Atmosphere.
10 Days Returnable;

+ -

PH Meter Portable Table Top

pH Meter Table Top for Laboratory | 2 Point Auto Calibration by push buttons on front Panel | pH Meter Portable Table Top

Working Principle of pH meter:
The working of pH meter is based on Nernst equation. Nernst equation derives the relation between the electric voltage with ion concentration. Hence Nernst equation derived for H+ ion concentration is the basis of pH meter. While working principle of pH meter is the potential Value. The pH meter consists of glass (also called as indicator electrode) and reference electrode. The glass electrode consists of glass membrane. Which is sensitive to hydrogen ion concentration of test sample solution. And the glass electrode potential varies from sample to sample. The reference electrode is standard and has constant potential. The reference electrode does not respond to test sample solution. The pH meter measures and compares the Pot-Diff between both glass and reference electrodes.

While using the Nernst equation. The potential difference used to measure the hydrogen ion conc. indicating the pH of given solution. Due to the potential difference between two electrodes. The electron flows and generates current. This generated current is measured by voltmeter. The relationship between the potential difference. Generated current and pH has been derived. The potential difference of 1 pH is 59.16 mV at 25° C and hence when there is difference of one pH unit. There will be change in voltage by 59.16 mV. Hence this relationship employed in measuring the pH.

Construction of pH meter: PH Meter Portable Table Top

While The pH sensor or probe of modern pH meter combined type. Then pH Meter Portable Table Top in which test and reference electrode placed into a Glass tube like structure. The combined electrode consist of following parts-

pH Meter

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  1. Range : 0.00 to 14.0 pH
  2. Resolution : 0.10 pH
  3. Tolerence : +/- 0.15 pH
  4. Output : No Output Display Only
  5. Calibration: Auto Calibration by Front Panel Push Buttons; 4pH and 7pH Value
  6. Input: pH Probe any Brand BNC Connector
  7. Display: Seven-Segment Bright LED Display
  8. Operating Voltage: 220 Vac
  9. Size : 65 * 185 * 125
  10. Body: PP/ABS


Calibration 7 pH
Dip the Electrode in standard Solution of 7 pH Value, wait for 10 Seconds to stable value
Auto Calibration by push button on front Panel 7.00

Calibration 4 pH
Dip the Electrode in standard Solution of 4 pH Value, wait for 10 Seconds to stable value
Auto Calibration by push button on front Panel 4.00

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