Re: [time-nuts] multimeter
Hi All, As you know I bought the yellow one. My Fluke 87V has arrived and I've been playing with it for a few hours. I love it. Most importantly for this group it read 5.000 on my voltage reference. But seriously what I love is its response, It's so much quicker than what I used before. The fact it beeps when you have the leads in the wrong holes is impressive. Most impressive. Brilliantly designed (The "Rel" or "Tare" button is awesome) I so wish I'd got this years back. Thank you all for your advice. You were spot on. On Tue, 26 Mar 2019 at 12:00, Matthew D'Asaro wrote: > I have long felt that the 289 is a classic example of design by committee. > It has every possible feature that no one wants or needs and a price that > represents that, but not the features people actually care about in a meter > (fast turn on, rugged, light weight, reliable, long battery life.) > > Matthew > > Sent from Matthew D'Asaro's iPhone > > > On Mar 25, 2019, at 1:31 PM, William H. Fite wrote: > > > > You're so right about the 289. It costs too much, sucks the life out of > > batteries and is way too big. > > > > I have about a dozen handheld MMs, from a piece of Harbor Freight trash > to > > a Gossen Metrahit M248A (believe it or not, a gift from a widow, off her > > late husband's bench. NIB). My 87 is the one I use the most. You know > what > > I use my 289 for? Tracking internal temp on the Christmas turkey and the > > occasional hunk of roast beef. > > > > It may not be the most desirable multimeter but it's one hell of a meat > > thermometer! > > > > > > > >> On Monday, March 25, 2019, Dan Kemppainen > wrote: > >> > >> The 87 is a good general purpose meter. My preference has been the now > >> obsolete Fluke 189. It was replaced with the 289, which is just > horrible. > >> It eats batteries, is huge, takes forever to 'boot'. No one in the ship > >> grabs that one unless it's the last one on the shelf. > >> > >> We've gone to orange meters now that we can't get more 189's. The > Keysignt > >> U1272A has been a good replacement in our shop for the 189. > >> > >> I also have a U1241B, and am quite happy with it. I find myself reaching > >> for the U1241B more often than the Fluke 189 as of late. It's smaller... > >> > >> All that said, I'm certain you'll be happy 87 for what you plan on doing > >> with it. > >> > >> Dan > >> > >> > >> > >> > >>> On 3/24/2019 12:00 PM, time-nuts-requ...@lists.febo.com wrote: > >>> > >>> Message: 8 > >>> Date: Sun, 24 Mar 2019 18:00:12 +1100 > >>> From: Jim Palfreyman > >>> To: Discussion of precise time and frequency measurement > >>> > >>> Subject: Re: [time-nuts] multimeter > >>> Message-ID: > >>> >>> gmail.com> > >>> Content-Type: text/plain; charset="UTF-8" > >>> > >>> Hi All, > >>> > >>> Thanks so much everyone for your comments. I especially liked "get the > >>> orange one". Because that's what I did get (I think it's orange - > could be > >>> yellow). > >>> > >>> I was deliberately vague (apologies) but I just wanted a broad > response. > >>> Which I got. > >>> > >>> I've settled on the Fluke 87V. It's on it's way. > >>> > >>> Jim > >> > >> ___ > >> time-nuts mailing list -- time-nuts@lists.febo.com > >> To unsubscribe, go to http://lists.febo.com/mailman/ > >> listinfo/time-nuts_lists.febo.com > >> and follow the instructions there. > > > > > > -- > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I have long felt that the 289 is a classic example of design by committee. It has every possible feature that no one wants or needs and a price that represents that, but not the features people actually care about in a meter (fast turn on, rugged, light weight, reliable, long battery life.) Matthew Sent from Matthew D'Asaro's iPhone > On Mar 25, 2019, at 1:31 PM, William H. Fite wrote: > > You're so right about the 289. It costs too much, sucks the life out of > batteries and is way too big. > > I have about a dozen handheld MMs, from a piece of Harbor Freight trash to > a Gossen Metrahit M248A (believe it or not, a gift from a widow, off her > late husband's bench. NIB). My 87 is the one I use the most. You know what > I use my 289 for? Tracking internal temp on the Christmas turkey and the > occasional hunk of roast beef. > > It may not be the most desirable multimeter but it's one hell of a meat > thermometer! > > > >> On Monday, March 25, 2019, Dan Kemppainen wrote: >> >> The 87 is a good general purpose meter. My preference has been the now >> obsolete Fluke 189. It was replaced with the 289, which is just horrible. >> It eats batteries, is huge, takes forever to 'boot'. No one in the ship >> grabs that one unless it's the last one on the shelf. >> >> We've gone to orange meters now that we can't get more 189's. The Keysignt >> U1272A has been a good replacement in our shop for the 189. >> >> I also have a U1241B, and am quite happy with it. I find myself reaching >> for the U1241B more often than the Fluke 189 as of late. It's smaller... >> >> All that said, I'm certain you'll be happy 87 for what you plan on doing >> with it. >> >> Dan >> >> >> >> >>> On 3/24/2019 12:00 PM, time-nuts-requ...@lists.febo.com wrote: >>> >>> Message: 8 >>> Date: Sun, 24 Mar 2019 18:00:12 +1100 >>> From: Jim Palfreyman >>> To: Discussion of precise time and frequency measurement >>> >>> Subject: Re: [time-nuts] multimeter >>> Message-ID: >>>>> gmail.com> >>> Content-Type: text/plain; charset="UTF-8" >>> >>> Hi All, >>> >>> Thanks so much everyone for your comments. I especially liked "get the >>> orange one". Because that's what I did get (I think it's orange - could be >>> yellow). >>> >>> I was deliberately vague (apologies) but I just wanted a broad response. >>> Which I got. >>> >>> I've settled on the Fluke 87V. It's on it's way. >>> >>> Jim >> >> ___ >> time-nuts mailing list -- time-nuts@lists.febo.com >> To unsubscribe, go to http://lists.febo.com/mailman/ >> listinfo/time-nuts_lists.febo.com >> and follow the instructions there. > > > -- > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
You're so right about the 289. It costs too much, sucks the life out of batteries and is way too big. I have about a dozen handheld MMs, from a piece of Harbor Freight trash to a Gossen Metrahit M248A (believe it or not, a gift from a widow, off her late husband's bench. NIB). My 87 is the one I use the most. You know what I use my 289 for? Tracking internal temp on the Christmas turkey and the occasional hunk of roast beef. It may not be the most desirable multimeter but it's one hell of a meat thermometer! On Monday, March 25, 2019, Dan Kemppainen wrote: > The 87 is a good general purpose meter. My preference has been the now > obsolete Fluke 189. It was replaced with the 289, which is just horrible. > It eats batteries, is huge, takes forever to 'boot'. No one in the ship > grabs that one unless it's the last one on the shelf. > > We've gone to orange meters now that we can't get more 189's. The Keysignt > U1272A has been a good replacement in our shop for the 189. > > I also have a U1241B, and am quite happy with it. I find myself reaching > for the U1241B more often than the Fluke 189 as of late. It's smaller... > > All that said, I'm certain you'll be happy 87 for what you plan on doing > with it. > > Dan > > > > > On 3/24/2019 12:00 PM, time-nuts-requ...@lists.febo.com wrote: > >> Message: 8 >> Date: Sun, 24 Mar 2019 18:00:12 +1100 >> From: Jim Palfreyman >> To: Discussion of precise time and frequency measurement >> >> Subject: Re: [time-nuts] multimeter >> Message-ID: >> > gmail.com> >> Content-Type: text/plain; charset="UTF-8" >> >> Hi All, >> >> Thanks so much everyone for your comments. I especially liked "get the >> orange one". Because that's what I did get (I think it's orange - could be >> yellow). >> >> I was deliberately vague (apologies) but I just wanted a broad response. >> Which I got. >> >> I've settled on the Fluke 87V. It's on it's way. >> >> Jim >> > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > and follow the instructions there. > -- ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I have both the 87 and the 189 (I agree re: the 289 - not to mention the expense...). The 189 stays in the shop, with rare exceptions. The 87, built like a tank, goes on the road in a padded case. Get an 87 and a set of very skinny, pointed probes for those tight places. You will be very happy. Ken WA2LBI On Mon, Mar 25, 2019 at 3:00 PM Dan Kemppainen wrote: > The 87 is a good general purpose meter. My preference has been the now > obsolete Fluke 189. It was replaced with the 289, which is just > horrible. It eats batteries, is huge, takes forever to 'boot'. No one in > the ship grabs that one unless it's the last one on the shelf. > > We've gone to orange meters now that we can't get more 189's. The > Keysignt U1272A has been a good replacement in our shop for the 189. > > I also have a U1241B, and am quite happy with it. I find myself reaching > for the U1241B more often than the Fluke 189 as of late. It's smaller... > > All that said, I'm certain you'll be happy 87 for what you plan on doing > with it. > > Dan > > > > > On 3/24/2019 12:00 PM, time-nuts-requ...@lists.febo.com wrote: > > Message: 8 > > Date: Sun, 24 Mar 2019 18:00:12 +1100 > > From: Jim Palfreyman > > To: Discussion of precise time and frequency measurement > > > > Subject: Re: [time-nuts] multimeter > > Message-ID: > >nivi8vitrhha74k...@mail.gmail.com> > > Content-Type: text/plain; charset="UTF-8" > > > > Hi All, > > > > Thanks so much everyone for your comments. I especially liked "get the > > orange one". Because that's what I did get (I think it's orange - could > be > > yellow). > > > > I was deliberately vague (apologies) but I just wanted a broad response. > > Which I got. > > > > I've settled on the Fluke 87V. It's on it's way. > > > > Jim > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
The 87 is a good general purpose meter. My preference has been the now obsolete Fluke 189. It was replaced with the 289, which is just horrible. It eats batteries, is huge, takes forever to 'boot'. No one in the ship grabs that one unless it's the last one on the shelf. We've gone to orange meters now that we can't get more 189's. The Keysignt U1272A has been a good replacement in our shop for the 189. I also have a U1241B, and am quite happy with it. I find myself reaching for the U1241B more often than the Fluke 189 as of late. It's smaller... All that said, I'm certain you'll be happy 87 for what you plan on doing with it. Dan On 3/24/2019 12:00 PM, time-nuts-requ...@lists.febo.com wrote: Message: 8 Date: Sun, 24 Mar 2019 18:00:12 +1100 From: Jim Palfreyman To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] multimeter Message-ID: Content-Type: text/plain; charset="UTF-8" Hi All, Thanks so much everyone for your comments. I especially liked "get the orange one". Because that's what I did get (I think it's orange - could be yellow). I was deliberately vague (apologies) but I just wanted a broad response. Which I got. I've settled on the Fluke 87V. It's on it's way. Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
That is not unusual. Back then, all VOMs and most VTVMs pumped substantial current through the unknown. When I became aware of that I started paying closer attention to how measurements were made. In general, 100 mA is typical short circuit current on low Ohms range. Some, such as the Triplett 630, go even higher. (I suggest you measure the short circuit current on low Ohms range on your most-used meter before you burn out somehting.) So you are right to caution people to avoid thinking of test gear as magic boxes. Another thing that came to my attention is the fact that the current through the unknown will be different for different values ot the unkown. Not so much a factor with the 410B, but most VOMs rely on batteries and the terminal voltage will change as the unknown value changes, making the calibration poor for low resistance. For instance, if center scale is 15 Ohms and you short the leads to zero the meter, then measure a 15 Ohm resistor, it will read less than 15 Ohms due to the slight increase in battery voltage at half current. It gets worse as the battery ages and for higher resistance on that range. The crowding of calibration at the high resistance end of the scale should not be an invitation to estimate high resistance either, since the mechanical meter zero becomes a factor. Pointer 'stiction' can cause errors as well. Bob On Sunday, March 24, 2019, 5:01:49 PM PDT, Ben Bradley wrote: I have a comment regarding "classic equipment." About 20 years ago I got an HP 410B VTVM, was pleasantly surprised that it still appeared to be within the stated accuracy, but was astounded to find the short-circuit current (measured the current range on a modern DMM) on the 1-ohm scale was 100mA. This is from memory from back then, so I should double-check it, but it was still a lot. This brings to mind the importance of knowing the ins and outs of equipment, and that you may not want to, for example, check the polarity of a sensitive transistor with this unit's resistance scale. On Sun, Mar 24, 2019 at 12:11 PM William H. Fite wrote: > > Fluke is the yellow one. Agilent is the orange one. Both are excellent. You > made a fine choice. > > > > On Sunday, March 24, 2019, Jim Palfreyman wrote: > > > Hi All, > > > > Thanks so much everyone for your comments. I especially liked "get the > > orange one". Because that's what I did get (I think it's orange - could be > > yellow). > > > > I was deliberately vague (apologies) but I just wanted a broad response. > > Which I got. > > > > I've settled on the Fluke 87V. It's on it's way. > > > > Jim > > > > > > On Sun, 24 Mar 2019 at 12:00, Bob Albert via time-nuts < > > time-nuts@lists.febo.com> wrote: > > > > > I have a cheap Chinese clamp-on power line ammeter I use occasionally. > > > Its lowest range is 20 A I think but I built a 10:1 expander (very > > > simple). I also built a line separator so I can grip just one line. > > > Bob > > > On Saturday, March 23, 2019, 5:00:23 PM PDT, Jim Harman < > > > j99har...@gmail.com> wrote: > > > > > > jim77...@gmail.com said: > > > > I think I'm in the market for a new digital multimeter. > > > > Could I have some recommendations? > > > > > > > > > > > It all depends on whether you are checking for a bad power supply or > > > testing the linearity of a 24 bit DAC. > > > > > > For the former, I find a built-in clamp type AC/DC ammeter with a > > > reasonably sensitive range (40 A or less) is very handy. My current > > > favorite is the Mastech MS2108, from Amazon. > > > > > > -Jim Harman > > > ___ > > > time-nuts mailing list -- time-nuts@lists.febo.com > > > To unsubscribe, go to > > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > > and follow the instructions there. > > > > > > ___ > > > time-nuts mailing list -- time-nuts@lists.febo.com > > > To unsubscribe, go to > > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > > and follow the instructions there. > > > > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to http://lists.febo.com/mailman/ > > listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > > -- > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the i
Re: [time-nuts] multimeter
I have a comment regarding "classic equipment." About 20 years ago I got an HP 410B VTVM, was pleasantly surprised that it still appeared to be within the stated accuracy, but was astounded to find the short-circuit current (measured the current range on a modern DMM) on the 1-ohm scale was 100mA. This is from memory from back then, so I should double-check it, but it was still a lot. This brings to mind the importance of knowing the ins and outs of equipment, and that you may not want to, for example, check the polarity of a sensitive transistor with this unit's resistance scale. On Sun, Mar 24, 2019 at 12:11 PM William H. Fite wrote: > > Fluke is the yellow one. Agilent is the orange one. Both are excellent. You > made a fine choice. > > > > On Sunday, March 24, 2019, Jim Palfreyman wrote: > > > Hi All, > > > > Thanks so much everyone for your comments. I especially liked "get the > > orange one". Because that's what I did get (I think it's orange - could be > > yellow). > > > > I was deliberately vague (apologies) but I just wanted a broad response. > > Which I got. > > > > I've settled on the Fluke 87V. It's on it's way. > > > > Jim > > > > > > On Sun, 24 Mar 2019 at 12:00, Bob Albert via time-nuts < > > time-nuts@lists.febo.com> wrote: > > > > > I have a cheap Chinese clamp-on power line ammeter I use occasionally. > > > Its lowest range is 20 A I think but I built a 10:1 expander (very > > > simple). I also built a line separator so I can grip just one line. > > > Bob > > > On Saturday, March 23, 2019, 5:00:23 PM PDT, Jim Harman < > > > j99har...@gmail.com> wrote: > > > > > > jim77...@gmail.com said: > > > > I think I'm in the market for a new digital multimeter. > > > > Could I have some recommendations? > > > > > > > > > > > It all depends on whether you are checking for a bad power supply or > > > testing the linearity of a 24 bit DAC. > > > > > > For the former, I find a built-in clamp type AC/DC ammeter with a > > > reasonably sensitive range (40 A or less) is very handy. My current > > > favorite is the Mastech MS2108, from Amazon. > > > > > > -Jim Harman > > > ___ > > > time-nuts mailing list -- time-nuts@lists.febo.com > > > To unsubscribe, go to > > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > > and follow the instructions there. > > > > > > ___ > > > time-nuts mailing list -- time-nuts@lists.febo.com > > > To unsubscribe, go to > > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > > and follow the instructions there. > > > > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to http://lists.febo.com/mailman/ > > listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > > -- > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Fluke is the yellow one. Agilent is the orange one. Both are excellent. You made a fine choice. On Sunday, March 24, 2019, Jim Palfreyman wrote: > Hi All, > > Thanks so much everyone for your comments. I especially liked "get the > orange one". Because that's what I did get (I think it's orange - could be > yellow). > > I was deliberately vague (apologies) but I just wanted a broad response. > Which I got. > > I've settled on the Fluke 87V. It's on it's way. > > Jim > > > On Sun, 24 Mar 2019 at 12:00, Bob Albert via time-nuts < > time-nuts@lists.febo.com> wrote: > > > I have a cheap Chinese clamp-on power line ammeter I use occasionally. > > Its lowest range is 20 A I think but I built a 10:1 expander (very > > simple). I also built a line separator so I can grip just one line. > > Bob > > On Saturday, March 23, 2019, 5:00:23 PM PDT, Jim Harman < > > j99har...@gmail.com> wrote: > > > > jim77...@gmail.com said: > > > I think I'm in the market for a new digital multimeter. > > > Could I have some recommendations? > > > > > > > > It all depends on whether you are checking for a bad power supply or > > testing the linearity of a 24 bit DAC. > > > > For the former, I find a built-in clamp type AC/DC ammeter with a > > reasonably sensitive range (40 A or less) is very handy. My current > > favorite is the Mastech MS2108, from Amazon. > > > > -Jim Harman > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > and follow the instructions there. > -- ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Hi All, Thanks so much everyone for your comments. I especially liked "get the orange one". Because that's what I did get (I think it's orange - could be yellow). I was deliberately vague (apologies) but I just wanted a broad response. Which I got. I've settled on the Fluke 87V. It's on it's way. Jim On Sun, 24 Mar 2019 at 12:00, Bob Albert via time-nuts < time-nuts@lists.febo.com> wrote: > I have a cheap Chinese clamp-on power line ammeter I use occasionally. > Its lowest range is 20 A I think but I built a 10:1 expander (very > simple). I also built a line separator so I can grip just one line. > Bob > On Saturday, March 23, 2019, 5:00:23 PM PDT, Jim Harman < > j99har...@gmail.com> wrote: > > jim77...@gmail.com said: > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > > > > It all depends on whether you are checking for a bad power supply or > testing the linearity of a 24 bit DAC. > > For the former, I find a built-in clamp type AC/DC ammeter with a > reasonably sensitive range (40 A or less) is very handy. My current > favorite is the Mastech MS2108, from Amazon. > > -Jim Harman > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Hi Also depends a bit on why you are shopping. If the answer is “lost the second one this year” then the debate over holding calibration likely isn’t of much relevance. If the answer is that the nixie tubes in the prior unit finally got to dim to read …. not quite the same issue. Bob > On Mar 23, 2019, at 6:49 PM, Jim Harman wrote: > > jim77...@gmail.com said: >> I think I'm in the market for a new digital multimeter. >> Could I have some recommendations? > >> >> It all depends on whether you are checking for a bad power supply or > testing the linearity of a 24 bit DAC. > > For the former, I find a built-in clamp type AC/DC ammeter with a > reasonably sensitive range (40 A or less) is very handy. My current > favorite is the Mastech MS2108, from Amazon. > > -Jim Harman > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I have a cheap Chinese clamp-on power line ammeter I use occasionally. Its lowest range is 20 A I think but I built a 10:1 expander (very simple). I also built a line separator so I can grip just one line. Bob On Saturday, March 23, 2019, 5:00:23 PM PDT, Jim Harman wrote: jim77...@gmail.com said: > I think I'm in the market for a new digital multimeter. > Could I have some recommendations? > > It all depends on whether you are checking for a bad power supply or testing the linearity of a 24 bit DAC. For the former, I find a built-in clamp type AC/DC ammeter with a reasonably sensitive range (40 A or less) is very handy. My current favorite is the Mastech MS2108, from Amazon. -Jim Harman ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I have a Fluke 289 and 8846A. Love both. 289 with IR adapter can send the measurements to your mobile and you can visualize, save, plot... Enviado do meu iPhone Em 23 de mar de 2019, à(s) 14:49, J. L. Trantham escreveu: > Forgot to mention hand held DMM's. I recommend the Fluke 289. > > Joe > > -Original Message- > From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of J. L. > Trantham > Sent: Saturday, March 23, 2019 9:44 AM > To: 'Discussion of precise time and frequency measurement' > Subject: Re: [time-nuts] multimeter > > I would recommend the Fluke 8846A. You can find them on theBay for under > $1000 if you wait long enough. > > Joe > > -Original Message- > From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of Jim > Palfreyman > Sent: Saturday, March 23, 2019 7:06 AM > To: Discussion of precise time and frequency measurement > Subject: [time-nuts] multimeter > > Hi all, > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > Jim > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
jim77...@gmail.com said: > I think I'm in the market for a new digital multimeter. > Could I have some recommendations? > > It all depends on whether you are checking for a bad power supply or testing the linearity of a 24 bit DAC. For the former, I find a built-in clamp type AC/DC ammeter with a reasonably sensitive range (40 A or less) is very handy. My current favorite is the Mastech MS2108, from Amazon. -Jim Harman ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
jim77...@gmail.com said: > I think I'm in the market for a new digital multimeter. > Could I have some recommendations? The probes can be as important as the meter. The typical Fluke handheld comes with probes that are safe for working around wall power. There is probably some official spec. The cables are happy at 600 volts or something in that range. The Amp mode has a fuse. ... All good stuff, but probably not interesting when running in time-nut mode. If I'm trying to measure a voltage on a board full of modern electronics, I want sharp, tiny tips on the probes. -- These are my opinions. I hate spam. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Greetings Jim, I recommend Fluke, they hold their calibration very well over long periods. Choose the model which best meets your requirements, i.e. number of digits, expanability, availability, and value for money. The bench models are arguably more readily serviceable than the hand-held models. The "Touch and hold" probe is very useful. regards, Roger T. On Sat, 23 Mar 2019 23:05:53 +1100, Jim Palfreyman wrote: > Hi all, > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > Jim > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I have a few multimeters, both analog and digital. The analog is preferred if I am tuning something. I always have 2 or 3 of the Harbor Freight ones, you can get them for free every few months. When the battery dies, I pitch it. Go get another !! 73, Dick, W1KSZ Sent from Outlook<http://aka.ms/weboutlook> From: time-nuts on behalf of Poul-Henning Kamp Sent: Saturday, March 23, 2019 1:51 PM To: Discussion of precise time and frequency measurement; Jim Palfreyman Subject: Re: [time-nuts] multimeter In message , Jim Palfreyman writes: >Could I have some recommendations? I'll caution against the Fluke 287: It takes forever to start and it eats batteries faster than is comfortable. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
yes he is wright, particularly your bird will grew out before the reading settles to zero at zero DC current measurement condition, I contacted Fluke they promised to send a special box for sending the instrument to them, it was in 2017, but the box did not arrived yet, One would expect a bit better service for one instrument which costs $400.- 73 KJ6UHN Alex On 3/23/2019 1:51 PM, Poul-Henning Kamp wrote: In message , Jim Palfreyman writes: Could I have some recommendations? I'll caution against the Fluke 287: It takes forever to start and it eats batteries faster than is comfortable. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
On 23-Mar-19 13:51, Poul-Henning Kamp wrote: > > In message > > , Jim Palfreyman writes: > >> Could I have some recommendations? > > I'll caution against the Fluke 287: It takes forever to start and > it eats batteries faster than is comfortable. I would agree, at least in terms of battery-eating. For my own needs, I favor a Fluke 87 IV, true RMS version, for my handheld. On the bench, I use a Keithley 2100 or Datron 1062. Happy hunting. -- --- Bruce Lane, ARS KC7GR http://www.bluefeathertech.com kyrrin (at) bluefeathertech dot com "Quando Omni Flunkus Moritati" (Red Green) ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
[time-nuts] multimeter
> Subject: [time-nuts] multimeter > I think I'm in the market for a new digital multimeter. > Could I have some recommendations? > > Because I do not know your requirements, I suggest you to take a look at the following comparison thread/spreadsheets: http://www.eevblog.com/forum/testgear/multimeter-spreadsheet/?all BTW, I'm an happy owner of 2x U1272A, 2x U1282A and 34410A (among other) Agilent/Keysight multimeters _ Elio. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Jim, For a handheld, I like the Keysight U1253B. I have used mine for several years now and I am very happy with it. Shaun M. -Original Message- From: time-nuts On Behalf Of Tom Holmes Sent: Saturday, March 23, 2019 9:53 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] multimeter HI Jim... I guess the obvious questions are what are you replacing, and what do you need it to do? Is this a bench unit or handheld? Tom Holmes, N8ZM -Original Message- From: time-nuts On Behalf Of Jim Palfreyman Sent: Saturday, March 23, 2019 8:06 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] multimeter Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.febo.com%2Fmailman%2Flistinfo%2Ftime-nuts_lists.febo.com&data=02%7C01%7C%7C4119bfd763754f396cf608d6afb215d4%7C84df9e7fe9f640afb435%7C1%7C0%7C636889576730734773&sdata=nXzTjoptVzkPjX3QHnRlcGWebJ2Taje8bj45H3lonWk%3D&reserved=0 and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.febo.com%2Fmailman%2Flistinfo%2Ftime-nuts_lists.febo.com&data=02%7C01%7C%7C4119bfd763754f396cf608d6afb215d4%7C84df9e7fe9f640afb435%7C1%7C0%7C636889576730744772&sdata=XGooIDhurg4mQ37xVJSQgTESyqjOY7zE7%2FGqpy5W3EM%3D&reserved=0 and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I use both the Fluke 87V and Keysight 34465A at my bench. Both will handle anything I need them to. Jim Palfreyman wrote: > Hi all, > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > Jim > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
That's why I mentioned 8.5 digit meters, Adrian. This being time nuts, someone is going to declare it essential to measure a signal with zeptovolt accuracy. On Saturday, March 23, 2019, Adrian Godwin wrote: > This is volt-nut territory, isn't it ? > If we're into choosing on the basis of essential specialist features, as is > fitting for time-nuts, I'm going to recommend the HP970A. It's the only > meter I know that can be configured to work upside-down. > > > On Sat, Mar 23, 2019 at 5:08 PM Bob Albert via time-nuts < > time-nuts@lists.febo.com> wrote: > > > It depends on what kind of measurements you make. I have many > voltmeters > > and use what is appropriate for the task. I can measure very accurately > if > > necessary. My spectrum analyzers are great rf voltmeters. I have some > of > > the Harbor Freight cheapies that are handy for many occasional uses. I > > have an old Radio Schlock VOM that is almost indispensable, and a Simpson > > 260 and a Triplett 630-NA. I even have an antique digital voltmeter, > five > > digit. > > Judging from the brevity of your request, I will assume you just want to > > make the occasional measurement. The Harbor Freight units are a good > > choice except they only have a 1 Megohm input resistance on dc, and only > go > > up to about 2 Meg on resistance if I recall correctly. Maybe 20 meg. > They > > won't measure ac current but they do have semiconductor tests and a > battery > > test position. If I needed just one, I'd look at the Fluke 87 or some of > > its variants. > > The worst part of all these is the need to replace batteries now and then > > or risk damage from corrosion. > > Bob > > On Saturday, March 23, 2019, 7:01:57 AM PDT, Jim Palfreyman < > > jim77...@gmail.com> wrote: > > > > Hi all, > > > > I think I'm in the market for a new digital multimeter. > > > > Could I have some recommendations? > > > > Jim > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > ___ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > and follow the instructions there. > -- ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
In message , Jim Palfreyman writes: >Could I have some recommendations? I'll caution against the Fluke 287: It takes forever to start and it eats batteries faster than is comfortable. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
My opinion: Handheld: Fluke 87V - unbeatable reliability and features. Bench: HP 34401A. An industry standard for 20 years. I have both and use them every day Matthew Sent from Matthew D'Asaro's iPhone > On Mar 23, 2019, at 11:09 AM, Wes wrote: > > I have a Fluke 87V that I bought from a fellow on one of these reflectors for > about a third the price of new. It does more than I need. > > A lesser model would be fine for general purpose use. As we used to say in > the lab at work, "If it works, it's a Fluke." > > Wes N7WS > >> On 3/23/2019 5:05 AM, Jim Palfreyman wrote: >> Hi all, >> >> I think I'm in the market for a new digital multimeter. >> >> Could I have some recommendations? >> >> Jim > > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
This is volt-nut territory, isn't it ? If we're into choosing on the basis of essential specialist features, as is fitting for time-nuts, I'm going to recommend the HP970A. It's the only meter I know that can be configured to work upside-down. On Sat, Mar 23, 2019 at 5:08 PM Bob Albert via time-nuts < time-nuts@lists.febo.com> wrote: > It depends on what kind of measurements you make. I have many voltmeters > and use what is appropriate for the task. I can measure very accurately if > necessary. My spectrum analyzers are great rf voltmeters. I have some of > the Harbor Freight cheapies that are handy for many occasional uses. I > have an old Radio Schlock VOM that is almost indispensable, and a Simpson > 260 and a Triplett 630-NA. I even have an antique digital voltmeter, five > digit. > Judging from the brevity of your request, I will assume you just want to > make the occasional measurement. The Harbor Freight units are a good > choice except they only have a 1 Megohm input resistance on dc, and only go > up to about 2 Meg on resistance if I recall correctly. Maybe 20 meg. They > won't measure ac current but they do have semiconductor tests and a battery > test position. If I needed just one, I'd look at the Fluke 87 or some of > its variants. > The worst part of all these is the need to replace batteries now and then > or risk damage from corrosion. > Bob > On Saturday, March 23, 2019, 7:01:57 AM PDT, Jim Palfreyman < > jim77...@gmail.com> wrote: > > Hi all, > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > Jim > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Forgot to mention hand held DMM's. I recommend the Fluke 289. Joe -Original Message- From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of J. L. Trantham Sent: Saturday, March 23, 2019 9:44 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] multimeter I would recommend the Fluke 8846A. You can find them on theBay for under $1000 if you wait long enough. Joe -Original Message- From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of Jim Palfreyman Sent: Saturday, March 23, 2019 7:06 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] multimeter Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I have a Fluke 87V that I bought from a fellow on one of these reflectors for about a third the price of new. It does more than I need. A lesser model would be fine for general purpose use. As we used to say in the lab at work, "If it works, it's a Fluke." Wes N7WS On 3/23/2019 5:05 AM, Jim Palfreyman wrote: Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
For all around use, you cannot beat the Fluke 87-V. Accurate, reliable, incredibly rugged. Mine looks like it has been to war. Has been dropped, submerged in water, left outside in sub-zero weather. Still operates perfectly. Of course, if you need or want 8 1/2 digits, that's a horse of a different color. Try Agilent, Keithley, etc. But you'll be looking at $7K to $10K. On Saturday, March 23, 2019, Jim Palfreyman wrote: > Hi all, > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > Jim > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to http://lists.febo.com/mailman/ > listinfo/time-nuts_lists.febo.com > and follow the instructions there. > -- ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
You can't go wrong with a Fluke, although they are not cheap. I have one Fluke 115 that I actually get calibrated every year. I also have a variety of cheapies from Home Depot / Frys Electronics / Amazon and can't even tell you what the brands are. They work too and all seem to agree. It depends on what you want. If you just want to make a measurement, pretty much everything out there will do that and give you decent readings. If you want to make measurements on high voltages, and value your safety, then get something like the Fluke. For example, the safety fuse from the Fluke is more than you will pay for many meters. There are so many models that I can't make a recommendation without knowing what you plan to do with it. Regards, Mark On Sat, Mar 23, 2019 at 7:01 AM Jim Palfreyman wrote: > Hi all, > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > Jim > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I’d go with the old standard the Fluke 87 lifetime warranty, true RMS AC measurements, rugged and 4-1/2 digits Content by Scott Typos by Siri On Mar 23, 2019, at 8:05 AM, Jim Palfreyman wrote: Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
It depends on what kind of measurements you make. I have many voltmeters and use what is appropriate for the task. I can measure very accurately if necessary. My spectrum analyzers are great rf voltmeters. I have some of the Harbor Freight cheapies that are handy for many occasional uses. I have an old Radio Schlock VOM that is almost indispensable, and a Simpson 260 and a Triplett 630-NA. I even have an antique digital voltmeter, five digit. Judging from the brevity of your request, I will assume you just want to make the occasional measurement. The Harbor Freight units are a good choice except they only have a 1 Megohm input resistance on dc, and only go up to about 2 Meg on resistance if I recall correctly. Maybe 20 meg. They won't measure ac current but they do have semiconductor tests and a battery test position. If I needed just one, I'd look at the Fluke 87 or some of its variants. The worst part of all these is the need to replace batteries now and then or risk damage from corrosion. Bob On Saturday, March 23, 2019, 7:01:57 AM PDT, Jim Palfreyman wrote: Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Here is my wish list for a multimeter: Update rate: 10 measurements/second Input impedance: 1 Gigohm or 10/11 meg switchable Lowest voltage range: 1 mV Max voltage: 1000V Open circuit voltage in ohmmeter mode: <0.1 V Voltage drop in ammeter mode at full scale current: 50 mV Accuracy: 0.1% of FS, 4.5 digits Autoscale time: 250 ms max Display: Illuminated LCD with no timeout, at least 1 inch high, wide viewing angle both vertical and horizontal Can run on USB power to save batteries and allow leaving it on all the time. Capacitance: 1 pF resolution NOT on my wish list, but maybe on yours: True RMS @ I've always been OK with "Fake RMS" (fake news?) where the meter calculates the average of the absolute value and multiplies by pi/(2sqrt2) and displays RMS assuming a sine wave. Optional: data logging out for Labview, etc. When shopping for a meter, consider which of the above features are important to you. AFAIK, there is no ideal or even close to ideal meter. They are all limited in capabilities. You need to decide what you need, as you probably can't have everything. I recommend starting with Fluke (and I say that as a former HP/Agilent employee). At Agilent I had access to multi thousand dollar meters, and in many cases preferred a cheap "Tenma" handheld meter that was in "labstock" for various reasons. Also, does price matter? :-) Rick On 3/23/2019 5:05 AM, Jim Palfreyman wrote: Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Based on your requirements I would recommend an orange one. Leo > From: Jim Palfreyman > Hi all, > I think I'm in the market for a new digital multimeter. > Could I have some recommendations? > Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
HI Jim... I guess the obvious questions are what are you replacing, and what do you need it to do? Is this a bench unit or handheld? Tom Holmes, N8ZM -Original Message- From: time-nuts On Behalf Of Jim Palfreyman Sent: Saturday, March 23, 2019 8:06 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] multimeter Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Hi Jim: Fluke Brand. https://www.prc68.com/I/DMM.shtml It also depends on what you want to use it for. The Fluke "V-Check", like in the model 12, adds a resistor in parallel with the voltage input. It turns out that's a great thing to do, like when measuring the voltage at a lawn sprinkler valve that should be on that that shows the correct voltage on a high impedance meter, but shows (correctly) zero on the model 12 with V-check on. Most of the Fluke meters have a reputation of surviving plugging them into the wall socket on Ohms mode although I haven't done that. The Diode test current is regulated at 1.0 mA which I really like. And to maintain the Time Nuts content the Fluke 87 V has a frequency meter that I have used on a number of occasions. https://www.prc68.com/I/TuningForks.html#Testing -- Have Fun, Brooke Clarke https://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html axioms: 1. The extent to which you can fix or improve something will be limited by how well you understand how it works. 2. Everybody, with no exceptions, holds false beliefs. Original Message Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
Years ago 3 worked in a cal lab that did a lot of repair and calibration of electronic test equipment. Fluke was the most reliable. Some manufacturers went out of cal when you put the case together and you had to remove the case and adjust for when you put the case back on. Fluke was solid. I still have a Fluke 77 and it's still accurate and works perfectly 32 years later. Hope this helps Richard W4MCD On March 23, 2019 10:01:56 AM Jim Palfreyman wrote: > Hi all, > > I think I'm in the market for a new digital multimeter. > > Could I have some recommendations? > > Jim > ___ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
Re: [time-nuts] multimeter
I would recommend the Fluke 8846A. You can find them on theBay for under $1000 if you wait long enough. Joe -Original Message- From: time-nuts [mailto:time-nuts-boun...@lists.febo.com] On Behalf Of Jim Palfreyman Sent: Saturday, March 23, 2019 7:06 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] multimeter Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
[time-nuts] multimeter
Hi all, I think I'm in the market for a new digital multimeter. Could I have some recommendations? Jim ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
