Using The Conductivity Meter - Elcometer 138 User Manual

4 TEST PROCEDURE: US NAVY PPI 63101-000
9 Insert the syringe into the patch through
the spongy foam perimeter and extract
the solution from the patch.
10 Measure the conductivity of the solution
using the Elcometer 138E Conductivity
Meter, see Section 5.9 on page en-16.
Inject the sample directly into the sensor
cell. Rinse the sensor cell several times
with the solution to be measured before
taking the reading.
4.3 AFTER TEST
1 Record the temperature of the solution.
2 Remove the patch from the surface and clean the surface. If
required, any adhesive residue from the patch left on the test
surface can be removed by wiping with a cloth moistened with a
suitable solvent. Ensure that the solvent will not damage the
surface before use.
3 Rinse all components of the test kit, other than the patch, in fresh,
pure water. The components can then be used again.
4.4 PASS / FAIL CRITERIA
For immersed applications, conductivity due to soluble salts (total
ionic) shall not exceed 30µS/cm.
For non-immersed applications, conductivity due to soluble salts shall
not exceed 70µS/cm.
Note: The charts produced by the US Navy for the calculation of chloride levels are not
required for this test method. Please contact Elcometer or your local Elcometer
supplier if you require a copy of these charts.

5 USING THE CONDUCTIVITY METER

5.1 OVERVIEW
1 Battery Compartment Lid
2 LCD Display
3 Controls (see Section 5.3 on page en-7)
4 Sensor Cell / Electrode
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