Guralp Systems CMG-5TD User Manual

Page 33

Calibration

3. Open a Waveview window on the calibration signal and the returned

streams by selecting them and double-clicking. The streams should
display the calibration signal combined with the sensors' own

measurements. If you cannot see the calibration signal, zoom into the
Waveview using the scaling icons at the top left of the window or the

cursor keys.

Drag the calibration stream Cn across the Waveview window, so that it

is at the top.

4. If the returning signal is saturated, retry using a calibration signal with

lower amplitude, until the entire curve is visible in the Waveview
window.

5. If you need to scale one, but not another, of the traces, right-click on

the trace and select Scale.... You can then type in a suitable scale factor
for that trace.

6. Pause the Waveview window by clicking on the

icon.