Empathy List Archives

JL

J. L. Trantham

Thu, Sep 15, 2011 2:43 AM

Following Mickle's lead, I captured about 12 hours of data from my 7081
with my 'home-made' test leads shorted using the RS232 interface and the
freeware serial port terminal emulator program with 'transfer to Excel'
Mickle suggested. It only took me an extra day to figure out how to convert
the Excel chart into a .GIF to shrink it to a size I could attach to this
email and then send to the group.

I am learning so much from all this, a significant amount of which has to do
with computers and stuff I always wanted to know but never had or took the
time to learn.

It would appear that there is a cycling of the data, for most of the day,
but a fairly stable period for mid-day.

I would appreciate any thoughts on the data.

Joe

Following Mickle's lead, I captured about 12 hours of data from my 7081 with my 'home-made' test leads shorted using the RS232 interface and the freeware serial port terminal emulator program with 'transfer to Excel' Mickle suggested. It only took me an extra day to figure out how to convert the Excel chart into a .GIF to shrink it to a size I could attach to this email and then send to the group. I am learning so much from all this, a significant amount of which has to do with computers and stuff I always wanted to know but never had or took the time to learn. It would appear that there is a cycling of the data, for most of the day, but a fairly stable period for mid-day. I would appreciate any thoughts on the data. Joe

MK

m k

Thu, Sep 15, 2011 6:05 AM

Hi,
Do you have aircon or heating running at those times?

From: jltran@att.net
To: volt-nuts@febo.com
Date: Wed, 14 Sep 2011 21:43:32 -0500
Subject: [volt-nuts] Solartron 7081 Noise

Following Mickle's lead, I captured about 12 hours of data from my 7081
with my 'home-made' test leads shorted using the RS232 interface and the
freeware serial port terminal emulator program with 'transfer to Excel'
Mickle suggested. It only took me an extra day to figure out how to convert
the Excel chart into a .GIF to shrink it to a size I could attach to this
email and then send to the group.

I am learning so much from all this, a significant amount of which has to do
with computers and stuff I always wanted to know but never had or took the
time to learn.

It would appear that there is a cycling of the data, for most of the day,
but a fairly stable period for mid-day.

I would appreciate any thoughts on the data.

Joe

volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the instructions there.

Hi, Do you have aircon or heating running at those times? From: jltran@att.net To: volt-nuts@febo.com Date: Wed, 14 Sep 2011 21:43:32 -0500 Subject: [volt-nuts] Solartron 7081 Noise Following Mickle's lead, I captured about 12 hours of data from my 7081 with my 'home-made' test leads shorted using the RS232 interface and the freeware serial port terminal emulator program with 'transfer to Excel' Mickle suggested. It only took me an extra day to figure out how to convert the Excel chart into a .GIF to shrink it to a size I could attach to this email and then send to the group. I am learning so much from all this, a significant amount of which has to do with computers and stuff I always wanted to know but never had or took the time to learn. It would appear that there is a cycling of the data, for most of the day, but a fairly stable period for mid-day. I would appreciate any thoughts on the data. Joe _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.

AJ

Andreas Jahn

Thu, Sep 15, 2011 6:32 AM

Another possibility would be that the mains frequency 50/60 Hz is not
correctly set.
On a Solartron 7065 you have to set some links within the device to the
correct positions.

With best regards

Andreas

Hi,
Do you have aircon or heating running at those times?

From: jltran@att.net
To: volt-nuts@febo.com
Date: Wed, 14 Sep 2011 21:43:32 -0500
Subject: [volt-nuts] Solartron 7081 Noise

Following Mickle's lead, I captured about 12 hours of data from my 7081
with my 'home-made' test leads shorted using the RS232 interface and the
freeware serial port terminal emulator program with 'transfer to Excel'
Mickle suggested. It only took me an extra day to figure out how to
convert
the Excel chart into a .GIF to shrink it to a size I could attach to this
email and then send to the group.

I am learning so much from all this, a significant amount of which has to
do
with computers and stuff I always wanted to know but never had or took the
time to learn.

It would appear that there is a cycling of the data, for most of the day,
but a fairly stable period for mid-day.

I would appreciate any thoughts on the data.

Joe

volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the instructions there.

Another possibility would be that the mains frequency 50/60 Hz is not correctly set. On a Solartron 7065 you have to set some links within the device to the correct positions. With best regards Andreas > > Hi, > Do you have aircon or heating running at those times? > > From: jltran@att.net > To: volt-nuts@febo.com > Date: Wed, 14 Sep 2011 21:43:32 -0500 > Subject: [volt-nuts] Solartron 7081 Noise > > Following Mickle's lead, I captured about 12 hours of data from my 7081 > with my 'home-made' test leads shorted using the RS232 interface and the > freeware serial port terminal emulator program with 'transfer to Excel' > Mickle suggested. It only took me an extra day to figure out how to > convert > the Excel chart into a .GIF to shrink it to a size I could attach to this > email and then send to the group. > > I am learning so much from all this, a significant amount of which has to > do > with computers and stuff I always wanted to know but never had or took the > time to learn. > > It would appear that there is a cycling of the data, for most of the day, > but a fairly stable period for mid-day. > > I would appreciate any thoughts on the data. > > Joe > > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there.

S

shalimr9@gmail.com

Thu, Sep 15, 2011 12:25 PM

Would be interesting to correlate this with the A/C running (record ambient temperature with another channel)

Didier

Sent from my BlackBerry Wireless thingy while I do other things...

-----Original Message-----
From: "J. L. Trantham" jltran@att.net
Sender: volt-nuts-bounces@febo.com
Date: Wed, 14 Sep 2011 21:43:32
To: 'Discussion of precise voltage measurement'volt-nuts@febo.com
Reply-To: Discussion of precise voltage measurement volt-nuts@febo.com
Subject: [volt-nuts] Solartron 7081 Noise

Following Mickle's lead, I captured about 12 hours of data from my 7081
with my 'home-made' test leads shorted using the RS232 interface and the
freeware serial port terminal emulator program with 'transfer to Excel'
Mickle suggested. It only took me an extra day to figure out how to convert
the Excel chart into a .GIF to shrink it to a size I could attach to this
email and then send to the group.

I am learning so much from all this, a significant amount of which has to do
with computers and stuff I always wanted to know but never had or took the
time to learn.

It would appear that there is a cycling of the data, for most of the day,
but a fairly stable period for mid-day.

I would appreciate any thoughts on the data.

Joe

Would be interesting to correlate this with the A/C running (record ambient temperature with another channel) Didier Sent from my BlackBerry Wireless thingy while I do other things... -----Original Message----- From: "J. L. Trantham" <jltran@att.net> Sender: volt-nuts-bounces@febo.com Date: Wed, 14 Sep 2011 21:43:32 To: 'Discussion of precise voltage measurement'<volt-nuts@febo.com> Reply-To: Discussion of precise voltage measurement <volt-nuts@febo.com> Subject: [volt-nuts] Solartron 7081 Noise Following Mickle's lead, I captured about 12 hours of data from my 7081 with my 'home-made' test leads shorted using the RS232 interface and the freeware serial port terminal emulator program with 'transfer to Excel' Mickle suggested. It only took me an extra day to figure out how to convert the Excel chart into a .GIF to shrink it to a size I could attach to this email and then send to the group. I am learning so much from all this, a significant amount of which has to do with computers and stuff I always wanted to know but never had or took the time to learn. It would appear that there is a cycling of the data, for most of the day, but a fairly stable period for mid-day. I would appreciate any thoughts on the data. Joe

JL

J. L. Trantham

Thu, Sep 15, 2011 12:37 PM

Unfortunately, I do not have an easy way to do this. Probably need to get
one of those USB temp probes or something.

However, I will begin another collection today using the same set up to see
what reproducibility there is. The original collection was on a Tuesday,
the day the generator runs. Today, the generator should be quiescent.

Then, I will turn down the A/C overnight to cool off the shop, then start a
new collection with the A/C turned way up (and therefore off) and see what
happens.

Joe

-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of shalimr9@gmail.com
Sent: Thursday, September 15, 2011 7:26 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] Solartron 7081 Noise

Would be interesting to correlate this with the A/C running (record ambient
temperature with another channel)

Didier

Sent from my BlackBerry Wireless thingy while I do other things...

-----Original Message-----
From: "J. L. Trantham" jltran@att.net
Sender: volt-nuts-bounces@febo.com
Date: Wed, 14 Sep 2011 21:43:32
To: 'Discussion of precise voltage measurement'volt-nuts@febo.com
Reply-To: Discussion of precise voltage measurement volt-nuts@febo.com
Subject: [volt-nuts] Solartron 7081 Noise

Following Mickle's lead, I captured about 12 hours of data from my 7081
with my 'home-made' test leads shorted using the RS232 interface and the
freeware serial port terminal emulator program with 'transfer to Excel'
Mickle suggested. It only took me an extra day to figure out how to convert
the Excel chart into a .GIF to shrink it to a size I could attach to this
email and then send to the group.

I am learning so much from all this, a significant amount of which has to do
with computers and stuff I always wanted to know but never had or took the
time to learn.

It would appear that there is a cycling of the data, for most of the day,
but a fairly stable period for mid-day.

I would appreciate any thoughts on the data.

Joe

volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the instructions there.

Unfortunately, I do not have an easy way to do this. Probably need to get one of those USB temp probes or something. However, I will begin another collection today using the same set up to see what reproducibility there is. The original collection was on a Tuesday, the day the generator runs. Today, the generator should be quiescent. Then, I will turn down the A/C overnight to cool off the shop, then start a new collection with the A/C turned way up (and therefore off) and see what happens. Joe -----Original Message----- From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On Behalf Of shalimr9@gmail.com Sent: Thursday, September 15, 2011 7:26 AM To: Discussion of precise voltage measurement Subject: Re: [volt-nuts] Solartron 7081 Noise Would be interesting to correlate this with the A/C running (record ambient temperature with another channel) Didier Sent from my BlackBerry Wireless thingy while I do other things... -----Original Message----- From: "J. L. Trantham" <jltran@att.net> Sender: volt-nuts-bounces@febo.com Date: Wed, 14 Sep 2011 21:43:32 To: 'Discussion of precise voltage measurement'<volt-nuts@febo.com> Reply-To: Discussion of precise voltage measurement <volt-nuts@febo.com> Subject: [volt-nuts] Solartron 7081 Noise Following Mickle's lead, I captured about 12 hours of data from my 7081 with my 'home-made' test leads shorted using the RS232 interface and the freeware serial port terminal emulator program with 'transfer to Excel' Mickle suggested. It only took me an extra day to figure out how to convert the Excel chart into a .GIF to shrink it to a size I could attach to this email and then send to the group. I am learning so much from all this, a significant amount of which has to do with computers and stuff I always wanted to know but never had or took the time to learn. It would appear that there is a cycling of the data, for most of the day, but a fairly stable period for mid-day. I would appreciate any thoughts on the data. Joe _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.

volt-nuts@lists.febo.com

Solartron 7081 Noise