Hi James,

=20

As Chris Chapman states the problem is most likely the =91zero=92 value =
in
Amaseis.

It should be the average value that you see from your DAQ card.

=20

Hi pass filtering can also/ is the cause of this (spike) and is related =
to
incorrect setting of the Zero level(s).

 ,=20

=20

If the problem is =91incorrect zero level setting=92 then proceed and =
check /
set as follows.

=20

To set it up.

=20

Run  Amaseis=20

Under =91Settings=92

Click =91Set Zero Level=92 and set to 0, click ok

=20

Under Settings

Click =91Show Data Values=92 , have a look at the values shown here.

This is the actual signal values your digitizer is sending Amaseis.

The average signal should be a power of 2.

(You may need to unplug the instrument from your Digitizer card to get
values that make sense.)

If the value isn=92t a power of 2 or very close to a power of 2 , then =
adjust
the zero pot on the channel of your digitizer board.

=20

Now, this value is the =91zero=92 or =BD way value from your digitizer =
and is the
value that needs to be entered into the =91Set Zero Level=92.

=20

Go back to the =91Set Zero Level=92 and enter this value. Click Ok

=20

Now plug your instrument back in and go back into =91Show Data Values=92 =
.. You
should see numbers either side of zero and your problem (if it was this)
should be fixed.

=20

Let us know

Hope this helps

=20

=20

Blair Lade

South Australia

=20

=20

  _____ =20

From: psnlist-request@.............. =
[mailto:psnlist-request@...............
On Behalf Of JAMES RIDOUT
Sent: Monday, 1 July 2013 2:40 AM
To: PSNLIST@..............
Subject: Amaseis Hourly spike!

=20

Hi, Can anyone suggest what might be causing a large spike (Data Value) =
when
the screen refreshes in Amaseis=20

 Every hour - on the hour?.

I am using a dataq 194rs and running windows 7, =20

  There are no background programs running,=20

I just cant think what it could be! Any thoughts would be greatly
Appreciated!

   James

















Hi =
James,

 

As Chris Chapman states the problem =
is most
likely the ‘zero’ value in =
Amaseis.

It should be the average value that =
you
see from your DAQ card.

 

Hi pass filtering can also/ is the =
cause
of this (spike) and is related to incorrect setting of the Zero =
level(s).

=A0, 

 

If the problem is ‘incorrect =
zero
level setting’ then proceed and check / set as =
follows.

 

To set it =
up.

 

Run =A0Amaseis =


Under =
‘Settings’

Click ‘Set Zero Level’ =
and set
to 0, click ok

 

Under =
Settings

Click ‘Show Data =
Values’ ,
have a look at the values shown here.

This is the actual signal values =
your
digitizer is sending Amaseis.

The average signal should be a =
power of 2.

(You may need to unplug the =
instrument
from your Digitizer card to get values that make =
sense.)

If the value isn’t a power of =
2 or
very close to a power of 2 , then adjust the zero pot on the channel of =
your
digitizer board.

 

Now, this value is the =
‘zero’
or =BD way value from your digitizer and is the value that needs to be =
entered
into the ‘Set Zero Level’.

 

Go back to the ‘Set Zero =
Level’
and enter this value. Click Ok

 

Now plug your instrument back in =
and go
back into ‘Show Data Values’ . You should see numbers either =
side
of zero and your problem (if it was this) should be =
fixed.

 

Let us =
know

Hope this =
helps

=A0

 

Blair =
Lade

South Australia

 

 









From:
psnlist-request@.............. [mailto:psnlist-request@............... =
On Behalf Of JAMES RIDOUT

Sent: Monday, 1 July 2013 =
2:40 AM

To: =
PSNLIST@..............

Subject: Amaseis Hourly =
spike!



 





Hi, Can
anyone suggest what might be causing a large spike (Data Value) when the =
screen
refreshes in Amaseis 





 Every hour - on the =
hour?.





I am using a dataq 194rs and =
running
windows 7,  





  There are no background =
programs
running, 





I just cant think what it could =
be! Any
thoughts would be greatly Appreciated!





   =
James