Seismology Instruction with the AS 1

Once the trace is visible on the screen moving it down to the current hour line 

requires gentle tapping of the potentiometer (use the end of a pencil).  This is a 

 diffi cult and slow process.  Be patient and get the trace as close to the current UTC 

time (bottom line on screen) as possible.

In addition to just watching the trace on 

the screen, it can be helpful to use the 

Settings  > Show Data Values window 

when adjusting the potentiometer.  The 

goal is to have the data values bouncing 

above and below zero.

Centering the Trace

     Once the trace is close to the correct hour line, fi ne tune adjustments can be made using the 

set zero level.  Adjustments to this value are RELATIVE to the starting value of 2048.

   From the File Menu choose Settings > Set Zero Level

To shift the trace to the correct hour line increase         

or decrease the value in the Set Zero Level pop up 

window.  Fine tuning of the trace position can include a 

relative change of + or   5 or 10.  This number should 

remain relatively close to 2048 and SHOULD NOT be 

used to make large adjustments.  

Registering the Station

Register the new station online at 

http://www.scieds.com/spinet

Select Join the Network

SpiNet provides a site for teachers to share their AS 1 data with each other online.  

Additionally there are links to activities and other resources for teachers using seismic

data in the classroom.

Congratulations!

     By reaching this point, your seismometer is accurately recording and will store any events 

that it is able to detect.  The AmaSeis program needs to be running at all times in order to 

collect data, however the display window can be minimized.

AmaSeis Version 1.0 Level 2005.05.19

3.5