MI 3290 Earth Analyser
Tests and Measurements
103
Test can be started from the Potential measurement window. Before carrying out a test the
following parameters can be edited.
Figure 11.70: Potential
measurement menu
(Straight Line)
Figure 11.71: Potential
measurement menu
(X-Y)
Figure 11.72: Potential
measurement menu
(GPS)
Test parameters for Potential measurement (Straight Line):
Test
Frequency
Set test frequency: [55 Hz, 82 Hz, 94 Hz, 105 Hz, 111 Hz, 128 Hz, 164 Hz,
329 Hz]
Length Unit
Set the length unit: [m or ft]
Step Size
Set distance between measurement points: [0.5 m
– 5 m or 1 ft – 17 ft]
Direction ϕ
Direction of potential measurement or angle:
[0° – 360°]
Iflt
Fault current [1 A
– 200 kA].
Test parameters for Potential measurement (X-Y):
Test
Frequency
Set test frequency: [55 Hz, 82 Hz, 94 Hz, 105 Hz, 111 Hz, 128 Hz, 164 Hz,
329 Hz].
Axis (X)
Enter the horizontal point (user defined): [float number]
Axis (Y)
Enter the vertical point (user defined): [float number]
Iflt
Fault current [1 A
– 200 kA].
Test parameters for Potential measurement (GPS):
Test
Frequency
Set test frequency: [55 Hz, 82 Hz, 94 Hz, 105 Hz, 111 Hz, 128 Hz, 164 Hz,
329 Hz]
Latitude
Enter the latitude point (user defined): [DD - Decimal degrees]
Longitude
Enter the longitude point (user defined): [DD - Decimal degrees]
Iflt
Fault current [1 A
– 200 kA].
Potential measurement (Straight Line) procedure:
Select the Potential measurement (Straight Line) function.
Set the test parameters (orientation, test frequency, step size, fault current,
…).
Connect the test leads to the instrument and to the test object.
Press the Run key to start the test.
Select distance (d) with arrow keys and set S probe according to the setting.
Press Run or Enter key to start the measurement.
Wait until the test result is displayed on the screen.
Proceed with next step (Set new distance (d) and set S probe according to the new
setting) or repeat step.
Press Run or Enter key to start the next step measurement.
Wait until the test result is displayed on the screen.
Repeat the procedure as required.
Press Esc key or stop button to stop the test.
Save results (optional).
Note:
The instrument automatically remembers the results of all the steps taken from the last
measurement (started from Single tests menu) and offers the possibility to add / modify
steps later.
