7061 On Board Clock and Battery
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH Rechargeable 3
pin battery. My 7081 has two batteries installed, the same 3.6 V Ni-MH
Rechargeable battery and a ½ AA Lithium Battery that serves as the onboard
clock backup battery. It is connected with its negative pin to a 47K
resistor to ground and its positive pin to a diode that feeds a connection
that is also fed by another diode from the main power supply. The common
connection of these diodes feed the clock chip.
On my 7061 there is a location, B101 that appears to be for the same type ½
AA Lithium Battery. The + pin connects to a diode, in a manner similar to
that described above, and the pin connects to a space for a resistor,
R117, with the other end of the resistor going to ground. Both the battery,
B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock without the
need to restart the clock each time the meter is turned on. Or, perhaps
there is a reason why this in not a good idea.
Thanks in advance.
Joe
http://www.pa4tim.nl/?p=2456 here is a picture of the inside of my 7061. No second battery.
Fred PA4TIM
Op 25 jun. 2012 om 03:23 heeft "J. L. Trantham" jltran@att.net het volgende geschreven:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH Rechargeable 3
pin battery. My 7081 has two batteries installed, the same 3.6 V Ni-MH
Rechargeable battery and a ½ AA Lithium Battery that serves as the onboard
clock backup battery. It is connected with its negative pin to a 47K
resistor to ground and its positive pin to a diode that feeds a connection
that is also fed by another diode from the main power supply. The common
connection of these diodes feed the clock chip.
On my 7061 there is a location, B101 that appears to be for the same type ½
AA Lithium Battery. The + pin connects to a diode, in a manner similar to
that described above, and the – pin connects to a ‘space’ for a resistor,
R117, with the other end of the resistor going to ground. Both the battery,
B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock without the
need to restart the clock each time the meter is turned on. Or, perhaps
there is a reason why this in not a good idea.
Thanks in advance.
Joe
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Here are some pics of the mine, only one battery:
http://www.eevblog.com/forum/product-reviews-photos-and-discussion/solartron-7061-help-and-come-photos/msg93650/#msg93650
As for the manual I did try to contact you directly,
did you read the message?
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH Rechargeable 3
pin battery. My 7081 has two batteries installed, the same 3.6 V Ni-MH
Rechargeable battery and a ½ AA Lithium Battery that serves as the onboard
clock backup battery. It is connected with its negative pin to a 47K
resistor to ground and its positive pin to a diode that feeds a connection
that is also fed by another diode from the main power supply. The common
connection of these diodes feed the clock chip.
On my 7061 there is a location, B101 that appears to be for the same type ½
AA Lithium Battery. The + pin connects to a diode, in a manner similar to
that described above, and the pin connects to a space for a resistor,
R117, with the other end of the resistor going to ground. Both the battery,
B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock without the
need to restart the clock each time the meter is turned on. Or, perhaps
there is a reason why this in not a good idea.
Thanks in advance.
Joe
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Fred,
Your 7061 appears to be identical to mine, including the same versions of
firmware in the EPROM's.
I tried installing a 3 V lithium battery for B101 and a 47K resistor for
R117. The current load brought it to about .5 volts. I placed a 'short'
across R117 and the voltage rose only to about 1 volt. I hooked my current
limited power supply to the points and it drew in excess of 150 mA from
'B101'. At that rate, it would take a two D cell batteries to have any
duration of powering the point with the external power off. The high
current draw prompted me to abandon any further testing. No harm done
though as the meter still works properly. Too bad it does not have battery
backup for the clock as does the 7081.
Thanks for the pictures.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fred Schneider
Sent: Monday, June 25, 2012 1:13 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
http://www.pa4tim.nl/?p=2456 here is a picture of the inside of my 7061. No
second battery.
Fred PA4TIM
Op 25 jun. 2012 om 03:23 heeft "J. L. Trantham" jltran@att.net het
volgende geschreven:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH
Rechargeable 3 pin battery. My 7081 has two batteries installed, the
same 3.6 V Ni-MH Rechargeable battery and a ½ AA Lithium Battery that
serves as the onboard clock backup battery. It is connected with its
negative pin to a 47K resistor to ground and its positive pin to a
diode that feeds a connection that is also fed by another diode from
the main power supply. The common connection of these diodes feed the
clock chip.
On my 7061 there is a location, B101 that appears to be for the same
type ½ AA Lithium Battery. The + pin connects to a diode, in a manner
similar to that described above, and the pin connects to a space
for a resistor, R117, with the other end of the resistor going to
ground. Both the battery, B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock
without the need to restart the clock each time the meter is turned
on. Or, perhaps there is a reason why this in not a good idea.
Thanks in advance.
Joe
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Fabio,
Thanks for the link to the pictures. I never seem to remember eevblog when
it comes to looking for stuff.
Your pictures show that your Earthy board is completely different from mine
in the area of 'B101'. You have no place for B101. Also, your Floating
board is different in that you have the 'CA' firmware and 28 pin EPROM's. I
wonder if anyone has modified my 'version' of the Floating board to use 28
pin EPROM's and if there would be any utility to doing this.
I did not get a message directly from you (that I recognized at least).
I'll try to send you one directly to make sure we can 'establish
communications'.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 5:14 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
Here are some pics of the mine, only one battery:
http://www.eevblog.com/forum/product-reviews-photos-and-discussion/solartron
-7061-help-and-come-photos/msg93650/#msg93650
As for the manual I did try to contact you directly,
did you read the message?
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH
Rechargeable 3 pin battery. My 7081 has two batteries installed, the
same 3.6 V Ni-MH Rechargeable battery and a ½ AA Lithium Battery that
serves as the onboard clock backup battery. It is connected with its
negative pin to a 47K resistor to ground and its positive pin to a
diode that feeds a connection that is also fed by another diode from
the main power supply. The common connection of these diodes feed the
clock chip.
On my 7061 there is a location, B101 that appears to be for the same
type ½ AA Lithium Battery. The + pin connects to a diode, in a manner
similar to that described above, and the pin connects to a space
for a resistor, R117, with the other end of the resistor going to
ground. Both the battery, B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock
without the need to restart the clock each time the meter is turned
on. Or, perhaps there is a reason why this in not a good idea.
Thanks in advance.
Joe
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Interesting, these roms are mine's:
http://www.ko4bb.com/Manuals/04)_ROM_Images_and_Drivers/Solartron_7061_ROMs.zip
I have also a problem with statistics,
seem that the standard deviation calculation is
wrong:
http://www.febo.com/pipermail/volt-nuts/2012-April/001793.html
If you have time to test yours for this I would be grateful.
Another thing is that on mine SP1 and SP2 on floating board are both
open circuit.
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
Fabio,
Thanks for the link to the pictures. I never seem to remember eevblog when
it comes to looking for stuff.
Your pictures show that your Earthy board is completely different from mine
in the area of 'B101'. You have no place for B101. Also, your Floating
board is different in that you have the 'CA' firmware and 28 pin EPROM's. I
wonder if anyone has modified my 'version' of the Floating board to use 28
pin EPROM's and if there would be any utility to doing this.
I did not get a message directly from you (that I recognized at least).
I'll try to send you one directly to make sure we can 'establish
communications'.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 5:14 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
Here are some pics of the mine, only one battery:
http://www.eevblog.com/forum/product-reviews-photos-and-discussion/solartron
-7061-help-and-come-photos/msg93650/#msg93650
As for the manual I did try to contact you directly,
did you read the message?
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH
Rechargeable 3 pin battery. My 7081 has two batteries installed, the
same 3.6 V Ni-MH Rechargeable battery and a ½ AA Lithium Battery that
serves as the onboard clock backup battery. It is connected with its
negative pin to a 47K resistor to ground and its positive pin to a
diode that feeds a connection that is also fed by another diode from
the main power supply. The common connection of these diodes feed the
clock chip.
On my 7061 there is a location, B101 that appears to be for the same
type ½ AA Lithium Battery. The + pin connects to a diode, in a manner
similar to that described above, and the pin connects to a space
for a resistor, R117, with the other end of the resistor going to
ground. Both the battery, B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock
without the need to restart the clock each time the meter is turned
on. Or, perhaps there is a reason why this in not a good idea.
Thanks in advance.
Joe
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Fabio,
I uploaded the EPROM contents from my meter to Didier's site as well. The
Floating board I have has 'AA' version firmware while yours is 'CA'. Mine
uses TMS2516 chips that are 24 pin and I think yours are 2764 28 pin chips.
I'll investigate the statistics function after I make sure it is 'in range'
as far as the calibration goes.
I don't understand 'SP1 and SP2 on floating board are both open circuit'.
To what does this refer?
Thanks.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 10:54 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
Interesting, these roms are mine's:
http://www.ko4bb.com/Manuals/04)_ROM_Images_and_Drivers/Solartron_7061_ROMs.
zip
I have also a problem with statistics,
seem that the standard deviation calculation is
wrong:
http://www.febo.com/pipermail/volt-nuts/2012-April/001793.html
If you have time to test yours for this I would be grateful.
Another thing is that on mine SP1 and SP2 on floating board are both
open circuit.
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
Fabio,
Thanks for the link to the pictures. I never seem to remember eevblog
when
it comes to looking for stuff.
Your pictures show that your Earthy board is completely different from
mine
in the area of 'B101'. You have no place for B101. Also, your Floating
board is different in that you have the 'CA' firmware and 28 pin EPROM's.
I
wonder if anyone has modified my 'version' of the Floating board to use 28
pin EPROM's and if there would be any utility to doing this.
I did not get a message directly from you (that I recognized at least).
I'll try to send you one directly to make sure we can 'establish
communications'.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 5:14 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
Here are some pics of the mine, only one battery:
-7061-help-and-come-photos/msg93650/#msg93650
As for the manual I did try to contact you directly,
did you read the message?
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH
Rechargeable 3 pin battery. My 7081 has two batteries installed, the
same 3.6 V Ni-MH Rechargeable battery and a ½ AA Lithium Battery that
serves as the onboard clock backup battery. It is connected with its
negative pin to a 47K resistor to ground and its positive pin to a
diode that feeds a connection that is also fed by another diode from
the main power supply. The common connection of these diodes feed the
clock chip.
On my 7061 there is a location, B101 that appears to be for the same
type ½ AA Lithium Battery. The + pin connects to a diode, in a manner
similar to that described above, and the pin connects to a space
for a resistor, R117, with the other end of the resistor going to
ground. Both the battery, B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock
without the need to restart the clock each time the meter is turned
on. Or, perhaps there is a reason why this in not a good idea.
Thanks in advance.
Joe
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and follow the instructions there.
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I'll investigate the statistics function after I make sure it is 'in range'
as far as the calibration goes.
Ok, thank you.
I don't understand 'SP1 and SP2 on floating board are both open circuit'.
To what does this refer?
In this photo, low center (sorry, it's an out of focus area) on the
right side of the last eprom there are two solder jumpers, that
should select the eprom size used. The manual says that one of the
two jumpers has to be closed to select 2716 or 2764. In mine both
are open and if I close the right one (dont remember if SP1 or 2)
my meter stops working correctly.
Fabio.
Thanks.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 10:54 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
Interesting, these roms are mine's:
http://www.ko4bb.com/Manuals/04)_ROM_Images_and_Drivers/Solartron_7061_ROMs.
zip
I have also a problem with statistics,
seem that the standard deviation calculation is
wrong:
http://www.febo.com/pipermail/volt-nuts/2012-April/001793.html
If you have time to test yours for this I would be grateful.
Another thing is that on mine SP1 and SP2 on floating board are both
open circuit.
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
Fabio,
Thanks for the link to the pictures. I never seem to remember eevblog
when
it comes to looking for stuff.
Your pictures show that your Earthy board is completely different from
mine
in the area of 'B101'. You have no place for B101. Also, your Floating
board is different in that you have the 'CA' firmware and 28 pin EPROM's.
I
wonder if anyone has modified my 'version' of the Floating board to use 28
pin EPROM's and if there would be any utility to doing this.
I did not get a message directly from you (that I recognized at least).
I'll try to send you one directly to make sure we can 'establish
communications'.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 5:14 AM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
Here are some pics of the mine, only one battery:
-7061-help-and-come-photos/msg93650/#msg93650
As for the manual I did try to contact you directly,
did you read the message?
Fabio.
"J. L. Trantham" jltran@att.net ha scritto:
My 7061 has a single battery installed, B501, a 3.6 V Ni-MH
Rechargeable 3 pin battery. My 7081 has two batteries installed, the
same 3.6 V Ni-MH Rechargeable battery and a ½ AA Lithium Battery that
serves as the onboard clock backup battery. It is connected with its
negative pin to a 47K resistor to ground and its positive pin to a
diode that feeds a connection that is also fed by another diode from
the main power supply. The common connection of these diodes feed the
clock chip.
On my 7061 there is a location, B101 that appears to be for the same
type ½ AA Lithium Battery. The + pin connects to a diode, in a manner
similar to that described above, and the pin connects to a space
for a resistor, R117, with the other end of the resistor going to
ground. Both the battery, B101, and the resistor, R117, are missing.
My questions are:
- Does anyone have a 7061 with this battery and resistor installed?
- If so, what is the value of the resistor, R117, and what type is the
battery?
It seems that this would be an easy addition to get a live clock
without the need to restart the clock each time the meter is turned
on. Or, perhaps there is a reason why this in not a good idea.
Thanks in advance.
Joe
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and follow the instructions there.
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I don't understand 'SP1 and SP2 on floating board are both open circuit'.
To what does this refer?
In this photo...
... the photo :)
http://www.flickr.com/photos/14336723@N08/7443455140/
Fabio.
This message was sent using IMP, the Internet Messaging Program.
OK!
Now I understand. On my unit, SP1 is soldered 'closed'. SP2 is 'open'.
As I said earlier, I have the 'AA' version of the Floating firmware with
TMS2516-45JL chips that have 24 pins. They are on the PCB 70610505Y F board
which I interpret to be the 'Revision F' board. There is room for a 28 pin
socket. I wonder if it would be possible to modify my board for the 28 pin
EPROM's?
I would be interested in knowing what board the 2764 chips are on.
Thanks.
Joe
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On
Behalf Of Fabio Eboli
Sent: Monday, June 25, 2012 5:03 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] 7061 On Board Clock and Battery
I don't understand 'SP1 and SP2 on floating board are both open circuit'.
To what does this refer?
In this photo...
... the photo :)
http://www.flickr.com/photos/14336723@N08/7443455140/
Fabio.
This message was sent using IMP, the Internet Messaging Program.
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