DMTA-10040-01EN, Rev. E, February 2018
Using the Instrument 175
To use the impedance plane theory and display
1. Connect the probe and the cable to the PROBE connector on the NORTEC 600.
2. Press the ADV SETUP menu key ( ) once, and then select APPL SELECT
(A key) to open the application selection menu. Select Surface Cracks with the
knob, then press to accept (see Figure 5-73 on page 175).
Figure 5‑73 The Surface Cracks application
3. Press the DISP menu key ( ), and set the POSITION (C key) to TOP CNTR.
4. Press the DISP menu key ( ) again, and set the GRID (D key) to OFF.
5. Press the ALARM menu key ( ), and set the ALARM 1 (A key) to OFF.
6. Press the MAIN FILTER menu key ( ), and set the FREQ (A key) to 60 kHz.
7. Set the GAIN (C key) to approximately 40 dB.
8. Hold the probe in the air, and then press the A-LIFT NULL key ( ).
9. Gently touch the ferrite sample with the probe, and continue to repeatedly gently
tap the sample (see Figure 5-74 on page 176). While tapping, press the ANGLE
key ( ) and adjust the ferrite signal angle until it is oriented straight upward
(90°) [see Figure 5-75 on page 176].
To Next Page
Loading...
