Fluke 731B & 750A batteries

G

Gary Schafer

Guest
Can anyone tell me what type and voltage the battery is in the Fluke
731B reference standard?

Also have a Fluke 750A reference divider that used 7.5 volt mercury
cells. What would be a good substitute for them?

Anyone have a copy of the manual for either?

Thanks
Gary K4FMX
 
"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:7mijl05bj16c7cun1jqemn6alqpe7l69k8@4ax.com...
Can anyone tell me what type and voltage the battery is in the Fluke
731B reference standard?

Also have a Fluke 750A reference divider that used 7.5 volt mercury
cells. What would be a good substitute for them?

Anyone have a copy of the manual for either?

Thanks
Gary K4FMX
Click to expand...

The 731B uses ordinary sub-C Nicads. nothing special about them.. don't
bother getting the higher capacity Nicads.. the internal charging circuit
isn't designed for them.

I have a Fluke 740A transfer standard that I'd like to find a suitable
replacement for the 1.65V mercury cell inside it. It's a very large cell...
a bit larger than a D cell.

--
Dave M
MasonDG44 at comcast dot net (Just subsitute the appropriate characters in
the address)

Never take a laxative and a sleeping pill at the same time!!
 
On Thu, 30 Sep 2004 00:07:12 GMT, "Tweetldee"
<masondg4499@comcast99.net> wrote:

"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:7mijl05bj16c7cun1jqemn6alqpe7l69k8@4ax.com...
Can anyone tell me what type and voltage the battery is in the Fluke
731B reference standard?

Also have a Fluke 750A reference divider that used 7.5 volt mercury
cells. What would be a good substitute for them?

Anyone have a copy of the manual for either?

Thanks
Gary K4FMX


The 731B uses ordinary sub-C Nicads. nothing special about them.. don't
bother getting the higher capacity Nicads.. the internal charging circuit
isn't designed for them.

I have a Fluke 740A transfer standard that I'd like to find a suitable
replacement for the 1.65V mercury cell inside it. It's a very large cell...
a bit larger than a D cell.
Click to expand...
Hi Dave, Thanks for the response.

What is the voltage used for the 731B? How many cells.

I would have thought it would be sealed lead acid.

Thanks
Gary K4FMX
 
"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:idqml09t056d3rieljbkfgjkvqkfmqr5o7@4ax.com...
On Thu, 30 Sep 2004 00:07:12 GMT, "Tweetldee"
masondg4499@comcast99.net> wrote:


"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:7mijl05bj16c7cun1jqemn6alqpe7l69k8@4ax.com...
Can anyone tell me what type and voltage the battery is in the Fluke
731B reference standard?

Also have a Fluke 750A reference divider that used 7.5 volt mercury
cells. What would be a good substitute for them?

Anyone have a copy of the manual for either?

Thanks
Gary K4FMX


The 731B uses ordinary sub-C Nicads. nothing special about them.. don't
bother getting the higher capacity Nicads.. the internal charging
circuit
isn't designed for them.

I have a Fluke 740A transfer standard that I'd like to find a suitable
replacement for the 1.65V mercury cell inside it. It's a very large
cell...
a bit larger than a D cell.

Hi Dave, Thanks for the response.

What is the voltage used for the 731B? How many cells.

I would have thought it would be sealed lead acid.

Thanks
Gary K4FMX
Click to expand...
Hi Gary,
The 731B uses 12 nicad cells for a total of 14.4 volts. I have a 731B
manual, but not willing to part with it, since I have a copy of the
instrument to accompany it. Might be willing to make a copy of it for
you...

Email me directly and we'll talk.

You can buy an original manual for the 731B at http://www.w7fg.com ($21.00)
You can rent a copy of the 750A manual from
http://www.testequipmentcanada.com ($10.00/month)
--
Dave M
MasonDG44 at comcast dot net (Just subsitute the appropriate characters in
the address)

Never take a laxative and a sleeping pill at the same time!!
 
On Thu, 30 Sep 2004 23:44:03 GMT, "Tweetldee"
<masondg4499@comcast99.net> wrote:

"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:idqml09t056d3rieljbkfgjkvqkfmqr5o7@4ax.com...
On Thu, 30 Sep 2004 00:07:12 GMT, "Tweetldee"
masondg4499@comcast99.net> wrote:


"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:7mijl05bj16c7cun1jqemn6alqpe7l69k8@4ax.com...
Can anyone tell me what type and voltage the battery is in the Fluke
731B reference standard?

Also have a Fluke 750A reference divider that used 7.5 volt mercury
cells. What would be a good substitute for them?

Anyone have a copy of the manual for either?

Thanks
Gary K4FMX


The 731B uses ordinary sub-C Nicads. nothing special about them.. don't
bother getting the higher capacity Nicads.. the internal charging
circuit
isn't designed for them.

I have a Fluke 740A transfer standard that I'd like to find a suitable
replacement for the 1.65V mercury cell inside it. It's a very large
cell...
a bit larger than a D cell.

Hi Dave, Thanks for the response.

What is the voltage used for the 731B? How many cells.

I would have thought it would be sealed lead acid.

Thanks
Gary K4FMX

Hi Gary,
The 731B uses 12 nicad cells for a total of 14.4 volts. I have a 731B
manual, but not willing to part with it, since I have a copy of the
instrument to accompany it. Might be willing to make a copy of it for
you...

Email me directly and we'll talk.

You can buy an original manual for the 731B at http://www.w7fg.com ($21.00)
You can rent a copy of the 750A manual from
http://www.testequipmentcanada.com ($10.00/month)
Click to expand...

Hi Dave,

I sent you an email a few days ago. Don't know if you got it. I sure
would like to get a copy of the 731B manual from you.

The 750A reference divider I ended up installing some AAA battery
holders in the battery compartment and using 10 AAA cells. Seems to
work ok. The current looks to be less than a micro amp when not in
use.

I also have a fluke 540B thermal transfer unit. It uses a large
mercury cell like your 740. I need to find a manual for it and
determine what kind of batteries I can use in it too. In addition to
the mercury cell it also uses rechargeable batteries. None came with
it so don't know what they are yet.

Thanks for your help
Gary K4FMX
 
"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:9qq3m0pdc7bq5j10hvtq3nfddo5krn4k5i@4ax.com...
On Thu, 30 Sep 2004 23:44:03 GMT, "Tweetldee"
masondg4499@comcast99.net> wrote:

"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:idqml09t056d3rieljbkfgjkvqkfmqr5o7@4ax.com...
On Thu, 30 Sep 2004 00:07:12 GMT, "Tweetldee"
masondg4499@comcast99.net> wrote:


"Gary Schafer" <gaschafer@comcast.net> wrote in message
news:7mijl05bj16c7cun1jqemn6alqpe7l69k8@4ax.com...
Can anyone tell me what type and voltage the battery is in the Fluke
731B reference standard?

Also have a Fluke 750A reference divider that used 7.5 volt mercury
cells. What would be a good substitute for them?

Anyone have a copy of the manual for either?

Thanks
Gary K4FMX


The 731B uses ordinary sub-C Nicads. nothing special about them..
don't
bother getting the higher capacity Nicads.. the internal charging
circuit
isn't designed for them.

I have a Fluke 740A transfer standard that I'd like to find a suitable
replacement for the 1.65V mercury cell inside it. It's a very large
cell...
a bit larger than a D cell.

Hi Dave, Thanks for the response.

What is the voltage used for the 731B? How many cells.

I would have thought it would be sealed lead acid.

Thanks
Gary K4FMX

Hi Gary,
The 731B uses 12 nicad cells for a total of 14.4 volts. I have a 731B
manual, but not willing to part with it, since I have a copy of the
instrument to accompany it. Might be willing to make a copy of it for
you...

Email me directly and we'll talk.

You can buy an original manual for the 731B at http://www.w7fg.com
($21.00)
You can rent a copy of the 750A manual from
http://www.testequipmentcanada.com ($10.00/month)


Hi Dave,

I sent you an email a few days ago. Don't know if you got it. I sure
would like to get a copy of the 731B manual from you.

The 750A reference divider I ended up installing some AAA battery
holders in the battery compartment and using 10 AAA cells. Seems to
work ok. The current looks to be less than a micro amp when not in
use.

I also have a fluke 540B thermal transfer unit. It uses a large
mercury cell like your 740. I need to find a manual for it and
determine what kind of batteries I can use in it too. In addition to
the mercury cell it also uses rechargeable batteries. None came with
it so don't know what they are yet.

Thanks for your help
Gary K4FMX
Click to expand...
Hi Gary,
Sorry for the delay.. was very busy over the weekend, just didn't have
time to respond till now.
I can't offer anything on the 750A reference divider, however, I do know
that the 540B uses 2 bundles of 10 sub-C nicads for 12.25 volts each. It
also uses a 1.35 volt mercury cell N53T for the reference, but I don't know
where you can find a replacement for that one. Mine is still operable, so
I'm not in a bind for that yet. But I know the day is coming...
As to the manuals... I'll email you offline.
--
Dave M
MasonDG44 at comcast dot net (Just subsitute the appropriate characters in
the address)

Never take a laxative and a sleeping pill at the same time!!
 
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