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The best multimeter? — Parallax Forums

The best multimeter?

ArchiverArchiver Posts: 46,084
edited 2004-05-26 13:37 in General Discussion
Hi! I am looking for recommendations on a multimeter with a computer
interface. I need to be able to use all the meter's functions from the
pc and get all responses on the pc. It would be great if I could access
the meter in something like visual basic so I could write my own
programs for it. If anyone has any recommendations it would be greatly
appreciated.
David

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2004-05-19 16:01
    check out the Fluke brand of meters. They have been making them for years
    for use in ATE systems and can supply them to interface via network, rs232,
    ieee488 etc. They are, however, expensive.
    jim
    http://www.geocities.com/jimforkin2003/


    Original Message
    From: David W. Sexton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=K5IrKzu05mV-fIGM8rXxpbAk-7e7gMU3wf4ZC8RWjk_pc6IDWqes9k_1K33twMKMFJucmnuV2cgDxoJBG6ATgzEx2S0]sextondavid@b...[/url
    Sent: Wednesday, May 19, 2004 9:13 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] The best multimeter?


    Hi! I am looking for recommendations on a multimeter with a computer
    interface. I need to be able to use all the meter's functions from the
    pc and get all responses on the pc. It would be great if I could access
    the meter in something like visual basic so I could write my own
    programs for it. If anyone has any recommendations it would be greatly
    appreciated.
    David




    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
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  • ArchiverArchiver Posts: 46,084
    edited 2004-05-24 22:18
    We use the Fluke 45 meter, for built in test equipment, for several of our
    experiments. I prefer the RS-232 due to low overhead, and NOT the need for
    an accursed IEEE 488 card<G>. It comes with a IEEE 488 option. But there
    are other meters out there that talk to a RS-232. The Fluke company even
    provides example programs in the manual. For languages, so long as the
    output is the same, it doesn't matter what you write the program in, this is
    a help for you.

    Note: The 45 will give you two parameters at a time, though you could set
    it up for Voltage, Current, and Frequency at almost the same time. It has
    essentially 2 channels. There is a relay that clicks between the two
    channels for readings. This slows the readings down a bit, and you hear the
    relay click for hours at a time (not a problem here due to high noise
    levels<G>). When I close out my basic write to files, I also send a single
    channel command to the 45 so that it will stop clicking<G>.

    Also it has several baud rates. This can be good, so long as another
    engineer doesn't change it and give it back to you. I have pulled my hair
    out several times because of this<G>. Now, when it doesn't work, I look at
    baud rate first<G>.

    Let us know what you decide, may help us also.




    --Original Message
    From: Jim Forkin [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=_eJH84JLBZB97HVqqef0cFY-3EzuX9c66FyVtHQZKuNta-Jnj63t7UKBDj2o5A0yxHM7u-eG]jjf@p...[/url
    Sent: Wednesday, May 19, 2004 11:02 AM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?


    check out the Fluke brand of meters. They have been making them for years
    for use in ATE systems and can supply them to interface via network, rs232,
    ieee488 etc. They are, however, expensive. jim
    http://www.geocities.com/jimforkin2003/


    Original Message
    From: David W. Sexton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ifaaSA3ZaJJqDzYpuBFvwsrIanXc4BRi_w0S401006b8LdGqYQGjPuIdKcZjAwgWo_iuNlYgnkF7zsrOWgYKiw]sextondavid@b...[/url
    Sent: Wednesday, May 19, 2004 9:13 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] The best multimeter?


    Hi! I am looking for recommendations on a multimeter with a computer
    interface. I need to be able to use all the meter's functions from the pc
    and get all responses on the pc. It would be great if I could access the
    meter in something like visual basic so I could write my own programs for
    it. If anyone has any recommendations it would be greatly appreciated. David




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    Body of the message will be ignored.

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  • ArchiverArchiver Posts: 46,084
    edited 2004-05-25 06:09
    Wow! That fluke 45 looks nice! Around 750-900 dollars though...
    The others I have found that say will let me control/read via serial are
    the fluke 187 and fluke 189...
    I also found the DMR-5200 from circuittest.com, but that one simply
    streams out the readings constantly...
    If anyone finds anything else let me know!

    I suppose I should explain how this all relates to the basicstamp. I am
    putting together my BOE-bot and as a blind person it's impossible to
    tell the resisters apart so I need a meter that I can read the values on
    the computer. They do make some talking meters but they are not so good
    and are rather expensive. I have been pleased how easy it is to figure
    out how to put the parallax things together. The manuals are pretty well
    written for someone who can't see. As I said I am now stuck at resisters
    and such.
    Maybe I will just have to spend a ton on the 45 'cause I really like
    it's description! Plus, I am studying electrical engineering and it'd
    come in handy later.

    David

    Original Message
    From: Grover Richardson [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=MHDTKff235I99sOfoGwhso-yadsKcnIkm-GJ-h3r_GBGWhxv7_cWafuTYXnF5-cjPedQij7AAyX8vQDP5qajOIZhNU70bKF7r1Y]grover.richardson@g...[/url
    Sent: Monday, May 24, 2004 4:18 PM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?

    We use the Fluke 45 meter, for built in test equipment, for several of
    our
    experiments. I prefer the RS-232 due to low overhead, and NOT the need
    for
    an accursed IEEE 488 card<G>. It comes with a IEEE 488 option. But
    there
    are other meters out there that talk to a RS-232. The Fluke company
    even
    provides example programs in the manual. For languages, so long as the
    output is the same, it doesn't matter what you write the program in,
    this is
    a help for you.

    Note: The 45 will give you two parameters at a time, though you could
    set
    it up for Voltage, Current, and Frequency at almost the same time. It
    has
    essentially 2 channels. There is a relay that clicks between the two
    channels for readings. This slows the readings down a bit, and you hear
    the
    relay click for hours at a time (not a problem here due to high noise
    levels<G>). When I close out my basic write to files, I also send a
    single
    channel command to the 45 so that it will stop clicking<G>.

    Also it has several baud rates. This can be good, so long as another
    engineer doesn't change it and give it back to you. I have pulled my
    hair
    out several times because of this<G>. Now, when it doesn't work, I look
    at
    baud rate first<G>.

    Let us know what you decide, may help us also.




    --Original Message
    From: Jim Forkin [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=19gXsAI0scjiPgTaVEyZCvlE38d7aiUuHHS0xkNiJjuWyJxLm-0_6GPFdkRKL3TCPRq3Uxpw]jjf@p...[/url
    Sent: Wednesday, May 19, 2004 11:02 AM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?


    check out the Fluke brand of meters. They have been making them for
    years
    for use in ATE systems and can supply them to interface via network,
    rs232,
    ieee488 etc. They are, however, expensive. jim
    http://www.geocities.com/jimforkin2003/


    Original Message
    From: David W. Sexton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=zr2T-VobYr126QG32FUwu5714r9Hjl0OgMBnh13-wIliogL4G7OMRJi1ALSUVXQsjWDxReYMCaEGE08g5mtLiTOvgQ]sextondavid@b...[/url
    Sent: Wednesday, May 19, 2004 9:13 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] The best multimeter?


    Hi! I am looking for recommendations on a multimeter with a computer
    interface. I need to be able to use all the meter's functions from the
    pc
    and get all responses on the pc. It would be great if I could access the
    meter in something like visual basic so I could write my own programs
    for
    it. If anyone has any recommendations it would be greatly appreciated.
    David




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    and
    Body of the message will be ignored.

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  • ArchiverArchiver Posts: 46,084
    edited 2004-05-25 11:49
    I had a look at the Handiham site (www.handiham.org) and found this:
    http://www.omega.com/ppt/ppt.asp?ref=HHM2

    This would be a good Stamp project: A Stamp reads an RS232 DVM and outputs
    text via an Emic module... Hmm... If I had an Emic module that might be the
    project of the month, but it will have to wait until I get one, I suppose.

    Regards,

    Al Williams
    AWC
    http://www.awce.com




    Original Message
    From: David W. Sexton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=PmyJgg6vQ9OUta0KdtKkewZOWAWPBONy4Sgr4u9zN2GBA84Z8ruCgFsATNvE8IOrhfljXXbIJTLnGu0jiBjtRdnF]sextondavid@b...[/url
    Sent: Tuesday, May 25, 2004 12:10 AM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?


    Wow! That fluke 45 looks nice! Around 750-900 dollars though... The others I
    have found that say will let me control/read via serial are the fluke 187
    and fluke 189... I also found the DMR-5200 from circuittest.com, but that
    one simply streams out the readings constantly... If anyone finds anything
    else let me know!

    I suppose I should explain how this all relates to the basicstamp. I am
    putting together my BOE-bot and as a blind person it's impossible to tell
    the resisters apart so I need a meter that I can read the values on the
    computer. They do make some talking meters but they are not so good and are
    rather expensive. I have been pleased how easy it is to figure out how to
    put the parallax things together. The manuals are pretty well written for
    someone who can't see. As I said I am now stuck at resisters and such. Maybe
    I will just have to spend a ton on the 45 'cause I really like it's
    description! Plus, I am studying electrical engineering and it'd come in
    handy later.

    David

    Original Message
    From: Grover Richardson [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=1ewaAwcaMVRG6kmk2hngqWWhyWtqsjE7BuoTDXqzMntukSE9afp45JuTqcHGnFShHAVAAMYPeWOlJFOkIJLgWi2rJJpbbhtNGfk]grover.richardson@g...[/url
    Sent: Monday, May 24, 2004 4:18 PM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?

    We use the Fluke 45 meter, for built in test equipment, for several of our
    experiments. I prefer the RS-232 due to low overhead, and NOT the need for
    an accursed IEEE 488 card<G>. It comes with a IEEE 488 option. But there
    are other meters out there that talk to a RS-232. The Fluke company even
    provides example programs in the manual. For languages, so long as the
    output is the same, it doesn't matter what you write the program in, this is
    a help for you.

    Note: The 45 will give you two parameters at a time, though you could set
    it up for Voltage, Current, and Frequency at almost the same time. It has
    essentially 2 channels. There is a relay that clicks between the two
    channels for readings. This slows the readings down a bit, and you hear the
    relay click for hours at a time (not a problem here due to high noise
    levels<G>). When I close out my basic write to files, I also send a single
    channel command to the 45 so that it will stop clicking<G>.

    Also it has several baud rates. This can be good, so long as another
    engineer doesn't change it and give it back to you. I have pulled my hair
    out several times because of this<G>. Now, when it doesn't work, I look at
    baud rate first<G>.

    Let us know what you decide, may help us also.




    --Original Message
    From: Jim Forkin [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Eqwfizm848blvv1wCh5j0VTU_GmiJgfdY2fhxQjQpOsVn3a4fCp9yMuJUrWVTQGJCzzlQ4kcAw]jjf@p...[/url
    Sent: Wednesday, May 19, 2004 11:02 AM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?


    check out the Fluke brand of meters. They have been making them for years
    for use in ATE systems and can supply them to interface via network, rs232,
    ieee488 etc. They are, however, expensive. jim
    http://www.geocities.com/jimforkin2003/


    Original Message
    From: David W. Sexton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=PmyJgg6vQ9OUta0KdtKkewZOWAWPBONy4Sgr4u9zN2GBA84Z8ruCgFsATNvE8IOrhfljXXbIJTLnGu0jiBjtRdnF]sextondavid@b...[/url
    Sent: Wednesday, May 19, 2004 9:13 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] The best multimeter?


    Hi! I am looking for recommendations on a multimeter with a computer
    interface. I need to be able to use all the meter's functions from the pc
    and get all responses on the pc. It would be great if I could access the
    meter in something like visual basic so I could write my own programs for
    it. If anyone has any recommendations it would be greatly appreciated. David




    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.

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  • ArchiverArchiver Posts: 46,084
    edited 2004-05-26 13:37
    Understand the price shock. That's why I do most of my personal
    experimentation after work. I can't afford good equipment at home<G>. I
    guess I could cut costs and get rid of my Maine Coon though, but the wife
    would leave with him<G>. Oh well.

    Ahhh. Simple. I didn't think. I've been using that LT1298 (I think) 12
    bit A/D chip. There's a write up about it on the parallax web page. There
    is sample code that WORKS first time. I'm using it at work for one of our
    projects. If you have a stamp, you can use that for digital conversion.
    You would have to do the front end switch and resistor scaling (and ac
    rectification), but it's a cheap and simple solution, and right along the
    lines of this board.

    You can even have the stamp indicate when you are out of range in either
    direction in your software.

    I'm using a BS2. Good beast!!! But the sample code is there for a BS1
    also.

    The only problem I have had with this situation is getting my Turbo Basic to
    receive the data correctly. Haven't got that sorted out, so am using
    Hyperlink to download the data (high speed) for work.


    Original Message
    From: David W. Sexton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=tm9-NfElCe0C0hGfvFioadO1RXgo5vCkJfhrbm1z3wWYwCmq24F_6OzGWrG92jIcGBUx-RSh2mOGvbM-tCa5bQ]sextondavid@b...[/url
    Sent: Tuesday, May 25, 2004 1:10 AM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?


    Wow! That fluke 45 looks nice! Around 750-900 dollars though... The others I
    have found that say will let me control/read via serial are the fluke 187
    and fluke 189... I also found the DMR-5200 from circuittest.com, but that
    one simply streams out the readings constantly... If anyone finds anything
    else let me know!

    I suppose I should explain how this all relates to the basicstamp. I am
    putting together my BOE-bot and as a blind person it's impossible to tell
    the resisters apart so I need a meter that I can read the values on the
    computer. They do make some talking meters but they are not so good and are
    rather expensive. I have been pleased how easy it is to figure out how to
    put the parallax things together. The manuals are pretty well written for
    someone who can't see. As I said I am now stuck at resisters and such. Maybe
    I will just have to spend a ton on the 45 'cause I really like it's
    description! Plus, I am studying electrical engineering and it'd come in
    handy later.

    David

    Original Message
    From: Grover Richardson [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Ee2qIzsQRPw7a7ROmgg_Pzh-rxP7fXMnNYeTOy48f4v6yuDzNoUl6UpAzSFO_ozYkZdCa9FPs8iAYgfenShzgTMg-UcRv5tF]grover.richardson@g...[/url
    Sent: Monday, May 24, 2004 4:18 PM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?

    We use the Fluke 45 meter, for built in test equipment, for several of our
    experiments. I prefer the RS-232 due to low overhead, and NOT the need for
    an accursed IEEE 488 card<G>. It comes with a IEEE 488 option. But there
    are other meters out there that talk to a RS-232. The Fluke company even
    provides example programs in the manual. For languages, so long as the
    output is the same, it doesn't matter what you write the program in, this is
    a help for you.

    Note: The 45 will give you two parameters at a time, though you could set
    it up for Voltage, Current, and Frequency at almost the same time. It has
    essentially 2 channels. There is a relay that clicks between the two
    channels for readings. This slows the readings down a bit, and you hear the
    relay click for hours at a time (not a problem here due to high noise
    levels<G>). When I close out my basic write to files, I also send a single
    channel command to the 45 so that it will stop clicking<G>.

    Also it has several baud rates. This can be good, so long as another
    engineer doesn't change it and give it back to you. I have pulled my hair
    out several times because of this<G>. Now, when it doesn't work, I look at
    baud rate first<G>.

    Let us know what you decide, may help us also.




    --Original Message
    From: Jim Forkin [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=BoCDWr9s6esASxPnMAprZdnid0yMG7ZNaFPrzLmjFvs3GQSEewN-B1-ZXo7pPDdDoqSCQyX10NXeMQ]jjf@p...[/url
    Sent: Wednesday, May 19, 2004 11:02 AM
    To: basicstamps@yahoogroups.com
    Subject: RE: [noparse][[/noparse]basicstamps] The best multimeter?


    check out the Fluke brand of meters. They have been making them for years
    for use in ATE systems and can supply them to interface via network, rs232,
    ieee488 etc. They are, however, expensive. jim
    http://www.geocities.com/jimforkin2003/


    Original Message
    From: David W. Sexton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=tm9-NfElCe0C0hGfvFioadO1RXgo5vCkJfhrbm1z3wWYwCmq24F_6OzGWrG92jIcGBUx-RSh2mOGvbM-tCa5bQ]sextondavid@b...[/url
    Sent: Wednesday, May 19, 2004 9:13 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] The best multimeter?


    Hi! I am looking for recommendations on a multimeter with a computer
    interface. I need to be able to use all the meter's functions from the pc
    and get all responses on the pc. It would be great if I could access the
    meter in something like visual basic so I could write my own programs for
    it. If anyone has any recommendations it would be greatly appreciated. David




    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.

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