SOP for Cleaning Procedure for Conductivity Meter

What is the Conductivity Meter basic principle?

Conductivity is the ability of a solution to conduct electric current. The principle by which instruments measure conductivity is simple - two plates (cells) are placed in the sample, a potential is applied across the plates and the current is measured. Generally, the potential is in the form of a sine wave.

How does a conductivity meter work?

As seen in the animation, a conductivity meter consists of a probe that measures conductivity. A small electrical current flows between two electrodes set a certain distance apart, usually around 1 cm. If there is a high concentration of ions in the solution, the conductance is high, resulting in a fast current.

OBJECTIVE 

To lay down the procedure for cleaning of Conductivity meter

SCOPE 

This SOP shall be applicable for the Conductivity meter installed in Quality Control Laboratory at XYZ Limited 

RESPONSIBILITY 

Execution: Chemist and above-QC department 

PROCEDURE 

Frequency: After use 

• Take out the electrode dipped in the test solution. 
• Clean the electrode with purified water in a beaker and soak it with tissue paper. 
• After cleaning, again dip the electrode in water for further use 
• After completion of cleaning of the conductivity meter, record the cleaning details in the instrument log card as per the current version of SOP.

ABBREVIATION

SOP: Standard Operating Procedure 

Q.C: Quality control 

ANNEXURE

Nil 

REVISION HISTORY

Nil

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