AEMC 6422 User Manual page 28

2.3.4 Measurement Average (Model 6424)
After completing the measurement made with the S rod at 62% of the distance
between the H rod and the grounding electrode, press
memory.
1. Place the S rod at 72% of the distance d and take another measurement.
2. Press
3. Place the S rod at 52% of d, and take another measurement.
4. Press
The instrument immediately calculates and displays the average of the
three measurements and the percent difference between the lowest and
highest values. For the measurement to be valid, the difference must not
exceed 5%. If it is, place the H electrode out further and repeat the tests
at the 52%, 62%, and 72% distances.
Press
28
to store the measurement.
to store the measurement.
for >2 seconds to erase the stored measurements.
to store the value in
Ground Tester Models 6422/6424