Re: [volt-nuts] EDC VS330 Voltage Standard

[J. L. Trantham]

Joe,

Pardon my adding a 'subject' to the thread.

If all you want is a 'house standard', you're probably 'in the ball park'.
If you want to set up a home 'metrology lab' (careful, this 'metrology'
stuff can be as addicting as the 'time' stuff), you should get something
calibrated by an outside lab.  I would send the highest resolution meter out
for cal.  I don't know if calibration services are available for the VS330.

If the 3478A is it, I would vote to send the 3478A to Agilent for their
'Agilent' cal ($204.22 per their website) and see where you are.  The meters
I have sent to Agilent for their 'Agilent' cal, come back with 'as found'
and 'as left' values and is very informative about the capabilities of the
meters.  The meters I have returned for a repeat 'Agilent' cal have all
returned with their 'as found' values still in cal.

Once you get the 3478A back, you will have a number of 'calibrated'
measurement capabilities.

Do you have a manual?  I have an EDC CR103 voltage and current standard and
was able to find a 'partial' manual on the web.  It noted that a complete
manual was available from Krohn-Hite and to contact them at (508) 508-1660
or sa...@krohn-hite.com to purchase a complete manual.  When I emailed them
about obtaining one, I received a complete .PDF manual by return email from
one of their service engineers.  Others have had a similar experience.  When
asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you can't
find one, you might try contacting them.

Good luck.

Joe



-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: Sunday, July 28, 2013 4:06 PM
To: volt-nuts@febo.com
Subject: [volt-nuts] (no subject)

I just had a friend buy this for me (I don't have an ebay account). I hope I
didn't make a mistake.

http://www.ebay.com/itm/Electronic-Development-Corporation-EDC-VS330-VOLTAGE
-STANDARD-/161069656213?nma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&orig_cv
ip=true&rt=nc&_trksid=p2047675.l2557

Of course, once I have it, it's the chicken and egg problem. The best I have
to check it against is an HP 3478A that was last calibrated an unknown
number of years ago. It has a little round sticker over the CAL switch on
the front, but no dated calibration label that I can see. It came from a
repair facility that closed a few years ago.

Actually, the reason I was tempted to buy the VS330 was because I think the
3478A is off a bit. A while back, I built a simple 5V reference with a
MAX6350. The 3478A read high. I took the reference to work and the best
Fluke handheld we have was dead on (I don't remember the model right now).

I made the measurement again last night and the 3478A reads 5.0026 V, with
the last digit fluctuating. Room temperature was 26 C.

I guess obsessing about these things has brought me here to the Volt Nuts.
I have been on Time Nuts for several years.

Joe Gray
W5JG
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Re: [volt-nuts] EDC VS330 Voltage Standard

[Joseph Gray]

Thanks for the subject. Actually, I had intended to put that exact subject
on it, but forgot and clicked send.

I couldn't find even a partial manual for the VS330, but the 1030A partial
manual looks like it would be very similar. Would you please send me the
email contact at K-H that sent you the manual?

Joe Gray
W5JG



On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham  wrote:

> Joe,
>
> Pardon my adding a 'subject' to the thread.
>
> If all you want is a 'house standard', you're probably 'in the ball park'.
> If you want to set up a home 'metrology lab' (careful, this 'metrology'
> stuff can be as addicting as the 'time' stuff), you should get something
> calibrated by an outside lab.  I would send the highest resolution meter
> out
> for cal.  I don't know if calibration services are available for the VS330.
>
> If the 3478A is it, I would vote to send the 3478A to Agilent for their
> 'Agilent' cal ($204.22 per their website) and see where you are.  The
> meters
> I have sent to Agilent for their 'Agilent' cal, come back with 'as found'
> and 'as left' values and is very informative about the capabilities of the
> meters.  The meters I have returned for a repeat 'Agilent' cal have all
> returned with their 'as found' values still in cal.
>
> Once you get the 3478A back, you will have a number of 'calibrated'
> measurement capabilities.
>
> Do you have a manual?  I have an EDC CR103 voltage and current standard and
> was able to find a 'partial' manual on the web.  It noted that a complete
> manual was available from Krohn-Hite and to contact them at (508) 508-1660
> or sa...@krohn-hite.com to purchase a complete manual.  When I emailed
> them
> about obtaining one, I received a complete .PDF manual by return email from
> one of their service engineers.  Others have had a similar experience.
>  When
> asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you can't
> find one, you might try contacting them.
>
> Good luck.
>
> Joe
>
>
>
> -Original Message-
> From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
> Behalf Of Joseph Gray
> Sent: Sunday, July 28, 2013 4:06 PM
> To: volt-nuts@febo.com
> Subject: [volt-nuts] (no subject)
>
> I just had a friend buy this for me (I don't have an ebay account). I hope
> I
> didn't make a mistake.
>
>
> http://www.ebay.com/itm/Electronic-Development-Corporation-EDC-VS330-VOLTAGE
>
> -STANDARD-/161069656213?nma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&orig_cv
> ip=true&rt=nc&_trksid=p2047675.l2557
>
> Of course, once I have it, it's the chicken and egg problem. The best I
> have
> to check it against is an HP 3478A that was last calibrated an unknown
> number of years ago. It has a little round sticker over the CAL switch on
> the front, but no dated calibration label that I can see. It came from a
> repair facility that closed a few years ago.
>
> Actually, the reason I was tempted to buy the VS330 was because I think the
> 3478A is off a bit. A while back, I built a simple 5V reference with a
> MAX6350. The 3478A read high. I took the reference to work and the best
> Fluke handheld we have was dead on (I don't remember the model right now).
>
> I made the measurement again last night and the 3478A reads 5.0026 V, with
> the last digit fluctuating. Room temperature was 26 C.
>
> I guess obsessing about these things has brought me here to the Volt Nuts.
> I have been on Time Nuts for several years.
>
> Joe Gray
> W5JG
> ___
> 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.
>
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> To unsubscribe, go to
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> and follow the instructions there.
>
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Re: [volt-nuts] EDC VS330 Voltage Standard

[J. L. Trantham]

Joe,

As I recall, I just sent an email to sa...@krohn-hite.com regarding my CR103
and how to obtain the manual.

I can go back through the emails but it will take a while to find out who
sent it to me.

Joe

-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: Sunday, July 28, 2013 6:02 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] EDC VS330 Voltage Standard

Thanks for the subject. Actually, I had intended to put that exact subject
on it, but forgot and clicked send.

I couldn't find even a partial manual for the VS330, but the 1030A partial
manual looks like it would be very similar. Would you please send me the
email contact at K-H that sent you the manual?

Joe Gray
W5JG



On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham  wrote:

> Joe,
>
> Pardon my adding a 'subject' to the thread.
>
> If all you want is a 'house standard', you're probably 'in the ball park'.
> If you want to set up a home 'metrology lab' (careful, this 'metrology'
> stuff can be as addicting as the 'time' stuff), you should get 
> something calibrated by an outside lab.  I would send the highest 
> resolution meter out for cal.  I don't know if calibration services 
> are available for the VS330.
>
> If the 3478A is it, I would vote to send the 3478A to Agilent for 
> their 'Agilent' cal ($204.22 per their website) and see where you are.  
> The meters I have sent to Agilent for their 'Agilent' cal, come back 
> with 'as found'
> and 'as left' values and is very informative about the capabilities of 
> the meters.  The meters I have returned for a repeat 'Agilent' cal 
> have all returned with their 'as found' values still in cal.
>
> Once you get the 3478A back, you will have a number of 'calibrated'
> measurement capabilities.
>
> Do you have a manual?  I have an EDC CR103 voltage and current 
> standard and was able to find a 'partial' manual on the web.  It noted 
> that a complete manual was available from Krohn-Hite and to contact 
> them at (508) 508-1660 or sa...@krohn-hite.com to purchase a complete 
> manual.  When I emailed them about obtaining one, I received a 
> complete .PDF manual by return email from one of their service 
> engineers.  Others have had a similar experience.
>  When
> asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you 
> can't find one, you might try contacting them.
>
> Good luck.
>
> Joe
>
>
>
> -Original Message-
> From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] 
> On Behalf Of Joseph Gray
> Sent: Sunday, July 28, 2013 4:06 PM
> To: volt-nuts@febo.com
> Subject: [volt-nuts] (no subject)
>
> I just had a friend buy this for me (I don't have an ebay account). I 
> hope I didn't make a mistake.
>
>
> http://www.ebay.com/itm/Electronic-Development-Corporation-EDC-VS330-V
> OLTAGE
>
> -STANDARD-/161069656213?nma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&o
> rig_cv
> ip=true&rt=nc&_trksid=p2047675.l2557
>
> Of course, once I have it, it's the chicken and egg problem. The best 
> I have to check it against is an HP 3478A that was last calibrated an 
> unknown number of years ago. It has a little round sticker over the 
> CAL switch on the front, but no dated calibration label that I can 
> see. It came from a repair facility that closed a few years ago.
>
> Actually, the reason I was tempted to buy the VS330 was because I 
> think the 3478A is off a bit. A while back, I built a simple 5V 
> reference with a MAX6350. The 3478A read high. I took the reference to 
> work and the best Fluke handheld we have was dead on (I don't remember the
model right now).
>
> I made the measurement again last night and the 3478A reads 5.0026 V, 
> with the last digit fluctuating. Room temperature was 26 C.
>
> I guess obsessing about these things has brought me here to the Volt Nuts.
> I have been on Time Nuts for several years.
>
> Joe Gray
> W5JG
> ___
> 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.
>
> ___
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> https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
> and follow the instructions there.
>
>
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Re: [volt-nuts] EDC VS330 Voltage Standard

[Joseph Gray]

When I get the VS330, I think I'll first try setting it for 5 V and
comparing the 3478A reading with what I got with the MAX6350. If I get
about the same reading of 5.0026 V, is it safe to assume that the 3478A is
in error?


Joe Gray
W5JG



On Sun, Jul 28, 2013 at 5:02 PM, Joseph Gray  wrote:

> Thanks for the subject. Actually, I had intended to put that exact subject
> on it, but forgot and clicked send.
>
> I couldn't find even a partial manual for the VS330, but the 1030A partial
> manual looks like it would be very similar. Would you please send me the
> email contact at K-H that sent you the manual?
>
> Joe Gray
> W5JG
>
>
>
> On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham  wrote:
>
>> Joe,
>>
>> Pardon my adding a 'subject' to the thread.
>>
>> If all you want is a 'house standard', you're probably 'in the ball park'.
>> If you want to set up a home 'metrology lab' (careful, this 'metrology'
>> stuff can be as addicting as the 'time' stuff), you should get something
>> calibrated by an outside lab.  I would send the highest resolution meter
>> out
>> for cal.  I don't know if calibration services are available for the
>> VS330.
>>
>> If the 3478A is it, I would vote to send the 3478A to Agilent for their
>> 'Agilent' cal ($204.22 per their website) and see where you are.  The
>> meters
>> I have sent to Agilent for their 'Agilent' cal, come back with 'as found'
>> and 'as left' values and is very informative about the capabilities of the
>> meters.  The meters I have returned for a repeat 'Agilent' cal have all
>> returned with their 'as found' values still in cal.
>>
>> Once you get the 3478A back, you will have a number of 'calibrated'
>> measurement capabilities.
>>
>> Do you have a manual?  I have an EDC CR103 voltage and current standard
>> and
>> was able to find a 'partial' manual on the web.  It noted that a complete
>> manual was available from Krohn-Hite and to contact them at (508)
>> 508-1660
>> or sa...@krohn-hite.com to purchase a complete manual.  When I emailed
>> them
>> about obtaining one, I received a complete .PDF manual by return email
>> from
>> one of their service engineers.  Others have had a similar experience.
>>  When
>> asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you
>> can't
>> find one, you might try contacting them.
>>
>> Good luck.
>>
>> Joe
>>
>>
>>
>> -Original Message-
>> From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
>> Behalf Of Joseph Gray
>> Sent: Sunday, July 28, 2013 4:06 PM
>> To: volt-nuts@febo.com
>> Subject: [volt-nuts] (no subject)
>>
>> I just had a friend buy this for me (I don't have an ebay account). I
>> hope I
>> didn't make a mistake.
>>
>>
>> http://www.ebay.com/itm/Electronic-Development-Corporation-EDC-VS330-VOLTAGE
>>
>> -STANDARD-/161069656213?nma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&orig_cv
>> ip=true&rt=nc&_trksid=p2047675.l2557
>>
>> Of course, once I have it, it's the chicken and egg problem. The best I
>> have
>> to check it against is an HP 3478A that was last calibrated an unknown
>> number of years ago. It has a little round sticker over the CAL switch on
>> the front, but no dated calibration label that I can see. It came from a
>> repair facility that closed a few years ago.
>>
>> Actually, the reason I was tempted to buy the VS330 was because I think
>> the
>> 3478A is off a bit. A while back, I built a simple 5V reference with a
>> MAX6350. The 3478A read high. I took the reference to work and the best
>> Fluke handheld we have was dead on (I don't remember the model right now).
>>
>> I made the measurement again last night and the 3478A reads 5.0026 V, with
>> the last digit fluctuating. Room temperature was 26 C.
>>
>> I guess obsessing about these things has brought me here to the Volt Nuts.
>> I have been on Time Nuts for several years.
>>
>> Joe Gray
>> W5JG
>> ___
>> 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.
>>
>>
>
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Re: [volt-nuts] EDC VS330 Voltage Standard

[J. L. Trantham]

Same issue as with the time-nuts and the man with one watch versus more.  No
way to tell except to 'vote with the majority'.

So, the answer is 'probably'.

Joe

-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: Sunday, July 28, 2013 6:37 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] EDC VS330 Voltage Standard

When I get the VS330, I think I'll first try setting it for 5 V and
comparing the 3478A reading with what I got with the MAX6350. If I get about
the same reading of 5.0026 V, is it safe to assume that the 3478A is in
error?


Joe Gray
W5JG



On Sun, Jul 28, 2013 at 5:02 PM, Joseph Gray  wrote:

> Thanks for the subject. Actually, I had intended to put that exact 
> subject on it, but forgot and clicked send.
>
> I couldn't find even a partial manual for the VS330, but the 1030A 
> partial manual looks like it would be very similar. Would you please 
> send me the email contact at K-H that sent you the manual?
>
> Joe Gray
> W5JG
>
>
>
> On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham  wrote:
>
>> Joe,
>>
>> Pardon my adding a 'subject' to the thread.
>>
>> If all you want is a 'house standard', you're probably 'in the ball
park'.
>> If you want to set up a home 'metrology lab' (careful, this 'metrology'
>> stuff can be as addicting as the 'time' stuff), you should get 
>> something calibrated by an outside lab.  I would send the highest 
>> resolution meter out for cal.  I don't know if calibration services 
>> are available for the VS330.
>>
>> If the 3478A is it, I would vote to send the 3478A to Agilent for 
>> their 'Agilent' cal ($204.22 per their website) and see where you 
>> are.  The meters I have sent to Agilent for their 'Agilent' cal, come 
>> back with 'as found'
>> and 'as left' values and is very informative about the capabilities 
>> of the meters.  The meters I have returned for a repeat 'Agilent' cal 
>> have all returned with their 'as found' values still in cal.
>>
>> Once you get the 3478A back, you will have a number of 'calibrated'
>> measurement capabilities.
>>
>> Do you have a manual?  I have an EDC CR103 voltage and current 
>> standard and was able to find a 'partial' manual on the web.  It 
>> noted that a complete manual was available from Krohn-Hite and to 
>> contact them at (508)
>> 508-1660
>> or sa...@krohn-hite.com to purchase a complete manual.  When I 
>> emailed them about obtaining one, I received a complete .PDF manual 
>> by return email from one of their service engineers.  Others have had 
>> a similar experience.
>>  When
>> asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you 
>> can't find one, you might try contacting them.
>>
>> Good luck.
>>
>> Joe
>>
>>
>>
>> -Original Message-
>> From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] 
>> On Behalf Of Joseph Gray
>> Sent: Sunday, July 28, 2013 4:06 PM
>> To: volt-nuts@febo.com
>> Subject: [volt-nuts] (no subject)
>>
>> I just had a friend buy this for me (I don't have an ebay account). I 
>> hope I didn't make a mistake.
>>
>>
>> http://www.ebay.com/itm/Electronic-Development-Corporation-EDC-VS330-
>> VOLTAGE
>>
>> -STANDARD-/161069656213?nma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&
>> orig_cv 
>> ip=true&rt=nc&_trksid=p2047675.l2557<http://www.ebay.com/itm/Electron
>> ic-Development-Corporation-EDC-VS330-VOLTAGE-STANDARD-/161069656213?n
>> ma=true&si=PiGtcBMSdSOxgbm9DhiZ6iLo1GQ%253D&orig_cvip=true&rt=nc&_trk
>> sid=p2047675.l2557>
>>
>> Of course, once I have it, it's the chicken and egg problem. The best 
>> I have to check it against is an HP 3478A that was last calibrated an 
>> unknown number of years ago. It has a little round sticker over the 
>> CAL switch on the front, but no dated calibration label that I can 
>> see. It came from a repair facility that closed a few years ago.
>>
>> Actually, the reason I was tempted to buy the VS330 was because I 
>> think the 3478A is off a bit. A while back, I built a simple 5V 
>> reference with a MAX6350. The 3478A read high. I took the reference 
>> to work and the best Fluke handheld we have was dead on (I don't 
>> remember the model right now

Re: [volt-nuts] EDC VS330 Voltage Standard

[Marv @ Home]

An inbetween option are the VLAP labs, NIST accredited to follow 
procedures far stricter than ISO standards.


http://www.nist.gov/nvlap/

http://ts.nist.gov/standards/scopes/dclow.htm



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Re: [volt-nuts] EDC VS330 Voltage Standard

[Marv @ Home]

You could have a vote if all instruments being queried were equal in 
all respects, but at the metrology level every measurement has a 
confidence level attached to it, and between 3 meters the most 
recently cal'd one is probability wise, to be right than the older 
ones.  OTAH, if you have data on older machines showing their rate of 
drift and direction, you may have confidence in them compared to a 
younger undefined machine.  A lot depends on the data you have on 
comparable meters to give you more or less confidence in the reading.


This data is the difference between the costs of the calibration 
written earlier:


ISO 9001 = $50
Z540 = $175
ISO 17025 = $275

The costs vary by the amount of data provided _and_ the amount of 
secondary checking of your device.


In order to value this extra cost, you need to understand and track 
the data of your meter for its lifetime. If you have no need of more 
stringent data set, you can opt for the ISO9001, the basic procedure 
level calibration; it may not include adjustment.


If all your instruments are off their recommended cal date, and the 
VS330 is received in an unknown state stored or treated in unknown 
conditions, you really can't say its a better measure.  You need a 
verification from a reference source, be it a cal lab or someone's in 
cal DMM, and given its your most accurate device, assuming nothing is 
wrong with it, it should be the one calibrated to serve as the model 
for the rest of your lab.


Finally, the cal lab itself.  There are primary labs that hold their 
own JJ standards, and there are secondary labs that do not; primary 
labs are the best but far less numerous and maybe more expensive.


e.g. Agilent and NIST labs are primary labs.

An inbetween option are the VLAP labs, NIST accredited to follow 
procedures far stricter than ISO standards.





At 08:24 PM 7/28/2013, J. L. Trantham wrote:

Same issue as with the time-nuts and the man with one watch versus more.  No
way to tell except to 'vote with the majority'.

So, the answer is 'probably'.

Joe

-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: Sunday, July 28, 2013 6:37 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] EDC VS330 Voltage Standard

When I get the VS330, I think I'll first try setting it for 5 V and
comparing the 3478A reading with what I got with the MAX6350. If I get about
the same reading of 5.0026 V, is it safe to assume that the 3478A is in
error?


Joe Gray
W5JG


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Re: [volt-nuts] EDC VS330 Voltage Standard

[Joseph Gray]

Just a follow up. You were lucky getting a manual. I just got a reply from
Krohn-Hite, saying that no manual was avaialble.

Joe Gray
W5JG



On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham  wrote:

>
> Do you have a manual?  I have an EDC CR103 voltage and current standard and
> was able to find a 'partial' manual on the web.  It noted that a complete
> manual was available from Krohn-Hite and to contact them at (508) 508-1660
> or sa...@krohn-hite.com to purchase a complete manual.  When I emailed
> them
> about obtaining one, I received a complete .PDF manual by return email from
> one of their service engineers.  Others have had a similar experience.
>  When
> asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you can't
> find one, you might try contacting them.
>
> Good luck.
>
> Joe
>
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Re: [volt-nuts] EDC VS330 Voltage Standard

[J. L. Trantham]

Sorry to hear that.  I suspect someone has one somewhere.  Hopefully you'll
get lucky as well.

Joe

-Original Message-
From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
Behalf Of Joseph Gray
Sent: Monday, August 05, 2013 1:17 PM
To: Discussion of precise voltage measurement
Subject: Re: [volt-nuts] EDC VS330 Voltage Standard

Just a follow up. You were lucky getting a manual. I just got a reply from
Krohn-Hite, saying that no manual was avaialble.

Joe Gray
W5JG



On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham  wrote:

>
> Do you have a manual?  I have an EDC CR103 voltage and current 
> standard and was able to find a 'partial' manual on the web.  It noted 
> that a complete manual was available from Krohn-Hite and to contact 
> them at (508) 508-1660 or sa...@krohn-hite.com to purchase a complete 
> manual.  When I emailed them about obtaining one, I received a 
> complete .PDF manual by return email from one of their service 
> engineers.  Others have had a similar experience.
>  When
> asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you 
> can't find one, you might try contacting them.
>
> Good luck.
>
> Joe
>
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Re: [volt-nuts] EDC VS330 Voltage Standard

[Joseph Gray]

I got another response from K-H. They also won't calibrate this model.

So far, the only place that I have found a manual is Surplus Sales. They
list a "copy" of the manual for $20. I'll think about it while I keep
looking for a free one.

Joe Gray
W5JG



On Mon, Aug 5, 2013 at 12:26 PM, J. L. Trantham  wrote:

> Sorry to hear that.  I suspect someone has one somewhere.  Hopefully you'll
> get lucky as well.
>
> Joe
>
> -Original Message-
> From: volt-nuts-boun...@febo.com [mailto:volt-nuts-boun...@febo.com] On
> Behalf Of Joseph Gray
> Sent: Monday, August 05, 2013 1:17 PM
> To: Discussion of precise voltage measurement
> Subject: Re: [volt-nuts] EDC VS330 Voltage Standard
>
> Just a follow up. You were lucky getting a manual. I just got a reply from
> Krohn-Hite, saying that no manual was avaialble.
>
> Joe Gray
> W5JG
>
>
>
> On Sun, Jul 28, 2013 at 4:11 PM, J. L. Trantham  wrote:
>
> >
> > Do you have a manual?  I have an EDC CR103 voltage and current
> > standard and was able to find a 'partial' manual on the web.  It noted
> > that a complete manual was available from Krohn-Hite and to contact
> > them at (508) 508-1660 or sa...@krohn-hite.com to purchase a complete
> > manual.  When I emailed them about obtaining one, I received a
> > complete .PDF manual by return email from one of their service
> > engineers.  Others have had a similar experience.
> >  When
> > asked, Krohn-Hite asked that the manuals not be 'shared'.  So, if you
> > can't find one, you might try contacting them.
> >
> > Good luck.
> >
> > Joe
> >
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Re: [volt-nuts] EDC VS330 Voltage Standard

[Marv @ Home]

I've seen many EDC/KH calibrator models but your VSS 330 is novel; 
most of EDC's popular calibrators were precision low voltage types; 
VS330 has such a wide dynamic range, 100nV to 300VDC, 30 ppm.  The 
variants of the 100 were popular i.e., 103, 106, 106J etc., IIRC the 
manual for those models are almost identical except for the added 
functions that were linked to the key reference board.


Additional specs:

http://www.ebay.com/itm/EDC-VS330-/141017199834?pt=LH_DefaultDomain_0&hash=item20d547b4da

EDC made a good number of products with variations and judging from 
KH selection, not all of the documentation was salvaged when KH bought EDC.



At 09:08 PM 8/5/2013, Joseph Gray wrote:

I got another response from K-H. They also won't calibrate this model.

So far, the only place that I have found a manual is Surplus Sales. They
list a "copy" of the manual for $20. I'll think about it while I keep
looking for a free one.

Joe Gray
W5JG




Sincerely,



Marv
Philadelphia, PA  


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