hybridfree/eevblog-posts huggingface dataset:
Fluke 179 meter - Page 1
Forum section: electronics / beginners

author: FLUKE179
author_rank: Newbie
timestamp: September 04, 2010, 08:28:20 pm
content: Hi I'm thinking of getting a fluke 179 as a all-round electronics meter is it a good meter to start me off withI don't mind spending the cash on a good one to start with if it will last a year or two tips and advice mostWelcome thanks lots

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: September 04, 2010, 11:20:30 pm
content: Every time , that I took the decision of buying an meter , I took it because I wanted something that was missing from my toolbox .Examples :An small portableAn True RMSAn all around portable ( capacitors - transistors tester - thermometer )An heavy duty analog ( measures lots of Amperes - RF does not kills it - the needle can not be fooled )An bench type DMM ( always ready for action - stable behavior - safe to use )Or many bench type DMM ( multiple measurements - live comparisons - instant decisions of what behaves properly from the tested circuitry )Thats my tips.

author: Norelec
author_rank: Newbie
timestamp: September 05, 2010, 01:32:23 am
content: Industrial Electrician here.I use a Fluke 179 at work everyday. Its a great meter (I trust my life to it) but it isn't the best choice for electronics. The reason being that it only goes down to mA.If you can't afford the 87v I'd look at Dave's $100 shootout and pick one that you like.Hope this helps. If you have any more question about the 179 feel free to ask.

author: FLUKE179
author_rank: Newbie
timestamp: September 05, 2010, 10:46:18 am
content: Thanks lots I will give the 87v a look over as I don't mind spending the money on it if it will do the job right

author: FLUKE179
author_rank: Newbie
timestamp: September 05, 2010, 11:55:31 am
content: Just put my order in for a fluke 87v kit

author: DavidDLC
author_rank: Frequent Contributor
timestamp: September 05, 2010, 07:24:26 pm
content: Great, now you have to change your user name to FLUKE87V

author: orbiter
author_rank: Frequent Contributor
timestamp: September 05, 2010, 07:52:23 pm
content: Quote from: DavidDLC on September 05, 2010, 07:24:26 pmI was gunna say that

author: FLUKE179
author_rank: Newbie
timestamp: September 05, 2010, 08:01:22 pm
content: Yes I guess soit was the spec that did it for me websites like fluke.com will bankrupt me lol

author: Mambo
author_rank: Contributor
timestamp: September 10, 2010, 11:32:59 am
content: Fluke 87-V is a better meter than a 179, but if you looked at a Fluke87-V you should have purchased the Fluke 28-II. Everything the 87-V is but waterproof & dustproof. Having said all of that the Fluke 179 is Fluke best seller for a very good reason. Regardless.....you will be happy
Odd Fluke 179 RMS measurement - Page 1
Forum section: electronics / beginners

author: WaveyDipole
author_rank: Frequent Contributor
timestamp: February 06, 2017, 04:48:49 pm
content: I was looking at a transformer yesterday to assess its suitability for a particular project. the primary is mains AC, but the voltage of the secondary with a single winding with no taps was unknown except that it came from a domestic piece of equipment. I measured the AC voltage with no load using a fluke 179 which has True RMS measurement and got 1.8something volts. Well this did not seem right at all so I had a look at it with my analogue oscilloscope and got a P2P voltage of over 45v. The Rigol measured this at 47.2v. Calculating the RMS voltage form this, I arrived at about 16.69v. I then measured it on an AVO 8 Mk6 and got 16.5v which is quite close. Another DMM without true RMS measured 13.62v and variations like this might be expected, but I then re-checked with the Fluke and got the same 1.8something volts. So why might the Fluke, which is supposed to measure True RMS misbehaving like this?

author: mmagin
author_rank: Frequent Contributor
timestamp: February 06, 2017, 07:06:19 pm
content: A picture of the transformer might be interesting to see. Also:What does the secondary waveform look like on the scope?Are you sure the Fluke's AC voltage measurement is functioning correctly? Either check for a plausible reading on another low voltage transformer secondary, or probe the AC line (carefully!)

author: Gregg
author_rank: Super Contributor
timestamp: February 07, 2017, 08:34:40 pm
content: Try putting a slight load on the transformer and measuring again; something like a 1K resistor sounds about right for the figures you mention. You may be getting a small amount of capacitive coupling or inductive spikes in the open circuit condition that will not be significant as soon as the transformer is loaded.If the known primary voltage and frequency is applied you can try loading the secondary to about half of what the secondary wire size would indicate; which will get you into the ballpark of the lower end of the transformer design parameters. Most inexpensive transformers perform poorly unless they have a load.
Fluke 187 Board missing Diode - Page 1
Forum section: electronics / beginners

author: Obe
author_rank: Newbie
timestamp: August 22, 2025, 09:27:02 pm
content: I was troubleshooting my Fluke 187 with warning leads connected incorrectly and found out that a diode on the board is missing. I need help finding the type of diode and part number to purchase. Please let me know if anyone can assist.Thank you

author: squadchannel
author_rank: Frequent Contributor
timestamp: August 22, 2025, 09:41:23 pm
content: https://www.eevblog.com/forum/repair/fluke-289-woes/msg1896530/#msg1896530DS01 appears to be an infrared LED.phototransistor peak sensitivity is around 1000 nm, infrared LED with a peak around this value would be a good candidate. What size would it be? 0603? 0805?

author: floobydust
author_rank: Super Contributor
timestamp: August 22, 2025, 11:23:04 pm
content: more here:https://www.eevblog.com/forum/repair/fluke-289-shows-message-warning-leads-connected-incorrectly-i-have-detected/msg2309370/#msg2309370edit: Fluke 289 "DS2" = SMT IR LED 0805 works ok: KingbrightAPT2012F3CIR LED emitter 940nm 120° 0805 (metric 2012) Digi-Key 754-1435-1-ND. Green markings is cathode.

author: ahsrabrifat
author_rank: Regular Contributor
timestamp: September 10, 2025, 06:50:56 pm
content: Was it always like this, or did you remove the component while troubleshooting?
Fluke 196 Scopemeter - Is this working? - Page 1
Forum section: electronics / beginners

author: Unknown
author_rank: Unknown
timestamp: May 24, 2019, 04:00:46 am
content: Hey everyone,I've been in touch with a guy on CL who's selling a Fluke 196. He's sent me a picture of the unit turned on, but I'm not sure it's actually functioning correctly. In the pic you notice there's no flat reading across the middle of the screen. In most of the pictures I've seen of one of these units powered on, it's had that flat reading.Am I seeing that correctly? Is it maybe not switched on to that particular setting? I'm pretty green with scopes and haven't actually had my hands on a 196 yet so any input would be helpful.I've included a picture of the one I'm talking about, and another I found on eBay.

author: SG-1
author_rank: Regular Contributor
timestamp: May 24, 2019, 04:55:52 am
content: The top photo: In full auto my 196C goes to 100mV / 10ms / the trigger has the same shape. It my not have triggered yet, so no trace. I do not know if it will trigger. It is also showing in the upper right corner that is being powered by the AC adapter, so the batteries my be shot. They are not to expensive if you do not by them from Fluke. I have replaced mine once. The Fluke Probes cost about 200 US dollars each, if I remember correctly.Bottom Photo:Shows fully charged batteries. The trace looks wide to me, but we have no way of seeing if the scope is connected to anything.
Fluke 196B TrueRms. - Page 1
Forum section: electronics / beginners

author: Lachin012
author_rank: Regular Contributor
timestamp: November 21, 2022, 10:05:40 pm
content: Hello. Please tell me if Fluke 196B has TrueRms measurement, I can’t find this function, tell me how to turn it on or how to set it up, thanks.

author: bdunham7
author_rank: Super Contributor
timestamp: November 21, 2022, 10:26:10 pm
content: Using the multimeter ACV function, there is no separate setup--your readings will be TRMS. Using the scope measurement functions, read the manual. You will have TRMS, but the signal has to meet certain conditions on the screen to work properly.

author: Lachin012
author_rank: Regular Contributor
timestamp: November 22, 2022, 11:03:58 am
content: Quote from: bdunham7 on November 21, 2022, 10:26:10 pmThanks for the reply. But I couldn't find the manual.

author: alm
author_rank: Super Contributor
timestamp: November 22, 2022, 12:31:09 pm
content: You can find the manual here:https://www.fluke.com/en-us/support/manuals

author: Lachin012
author_rank: Regular Contributor
timestamp: November 22, 2022, 03:29:09 pm
content: Quote from: alm on November 22, 2022, 12:31:09 pmThank you.

author: Lachin012
author_rank: Regular Contributor
timestamp: November 22, 2022, 03:55:21 pm
content: Please tell me, in the manual they write that version 196B does not have PWM measurement, but in the oscilloscope settings I see V pwm, I can’t understand please explain to me please.

author: Lachin012
author_rank: Regular Contributor
timestamp: November 23, 2022, 10:10:53 am
content: Doesn't anyone know?

author: bdunham7
author_rank: Super Contributor
timestamp: November 23, 2022, 03:26:33 pm
content: I don't evenexactlyknow what the Vpwm(or is it VPWM) measurement is? Nor do I have the 196B model. However, Scopemeters in general often have different sets of measurements in scope and meter mode, so perhaps that explains the discrepancy--can you show more of the manual? Or, perhaps the manual is wrong or the feature was added in a software update orFrom a different Fluke Scopemeter manual:VpwmPurpose................. to measure on pulse width modulatedsignals, like motor drive inverter outputsPrinciple .........readings show the effective voltage basedon the average value of samples over awhole number of periods of the fundamentalfrequencyAccuracy ............................ as Vrms for sinewave signalsAnd reading that I'm still not clear on exactly how Vpwmis calculated, but it appears to be an alternative to RMS, adjusting for the load being a motor rather than a heating element.So feed your scope a PWM signal of some sort from an AWG, check the box to select that measurement and see if it gives you a reading.

author: Lachin012
author_rank: Regular Contributor
timestamp: November 23, 2022, 04:23:15 pm
content: Quote from: bdunham7 on November 23, 2022, 03:26:33 pmThank you for your answer, I will take some measurements and see what Vpwm is, maybe it looks like TRMS, something like an RMS measurement, I will write the result here. I think you are right this feature Vpwm most likely added with the update.on page 14 it is written about Vpwm.
Fluke 1AC II flux meter - Page 1
Forum section: electronics / beginners

author: karhong
author_rank: Newbie
timestamp: September 02, 2012, 07:09:54 pm
content: Hi,I have a flux meter Fluke 1AC-A II (sentivity range 90 - 1000 VAC). This item work.But I do not understand its flux measuring.Eg, I have a battery-powered phone/speaker connect via usb/audio to my laptop. This laptop is in turned connected to an AC source. The phone/speaker is at least 10" away from the laptop.The flux meter gives continuous beep when placed near to the speaker or phone. It's only when the AC source to laptop is turned OFF then the beeping goes off.Why is that so ?Does that mean that there are min 90 AC voltage inside those battery-powered devices when they are connected to a laptop ?Advice appreciated. Rgds.

author: T4P
author_rank: Super Contributor
timestamp: September 02, 2012, 09:01:39 pm
content: Sounds like your PSU is very leaky, does it have a earth connection? It might be that your earth is miswired ...
FLUKE 5100B up to 19.999V ac and dc only. please help. - Page 1
Forum section: electronics / beginners

author: clexzzz
author_rank: Newbie
timestamp: November 02, 2017, 09:28:58 am
content: Hi good day,i have some question about fluke 5100B. So far we can only use it up to 19.999V ac and V dc. When we try it 20V and up and press OPT, the display says OL. Can you please help us. Thank you. Sorry for my english.

author: dacman
author_rank: Frequent Contributor
timestamp: November 03, 2017, 12:13:42 am
content: Number one suspect is the A17 Power Amplifier. It works with ac voltages. For DCV, A17 gets fed 1 kHz and the output goes to A16 which rectifies and filters it. It would be easier to troubleshoot if extender cards were available.

author: clexzzz
author_rank: Newbie
timestamp: November 03, 2017, 01:48:00 am
content: thank you very much. do you know someone that can repair it?

author: clexzzz
author_rank: Newbie
timestamp: November 03, 2017, 02:29:40 am
content: Hi, I already saw the A16 and A17, we dont have a card extender. What particular part of it what needed to be checked and repaired? And please give us some procedure to troubleshoot it. Thank you very much.

author: dacman
author_rank: Frequent Contributor
timestamp: November 03, 2017, 02:23:33 pm
content: Does it work at:20 V, 10 kHzAC or DC Current at 100 mAAC or DC Current at 1 AI'd read the theory of operation (section 3) of the manual. Page 4-45 of the 5100B manual has a troubleshooting table, although without an extender it would be much more time consuming, even if possible.

author: clexzzz
author_rank: Newbie
timestamp: November 15, 2017, 08:57:39 am
content: No. up 19.999V only. Any suggestion so we can use it even the voltage function only. Thank you.
Fluke 77 Series II - Page 1
Forum section: electronics / beginners

author: TorqueRanger
author_rank: Frequent Contributor
timestamp: December 17, 2012, 05:49:58 pm
content: What's your thought on this meter for electronics

author: ModemHead
author_rank: Frequent Contributor
timestamp: December 17, 2012, 06:47:12 pm
content: It is a great general-purpose DMM. Sturdy, well-made professional tool, will retain its calibration for many years if not abused. On an electronics workbench, it would make a fine second DMM, but I'd want something with a few more features as a main DMM. Things like relative measurement, min/max/avg, and a micro-amp range, none of which a 77-II has.

author: TorqueRanger
author_rank: Frequent Contributor
timestamp: December 17, 2012, 07:19:30 pm
content: Quote from: ModemHead on December 17, 2012, 06:47:12 pmThanks for the replyBut my main meter is $10 dollar craftsman and I got this for less than $40 bucks shipped... My old lady plans on buying me a UNI 61E for Christmas when she has the cash and I figure for the price I can't go wrong ...

author: ModemHead
author_rank: Frequent Contributor
timestamp: December 17, 2012, 08:27:22 pm
content: Quote from: TorqueRanger on December 17, 2012, 07:19:30 pmIn that case, you're making a step in the right direction.

author: TorqueRanger
author_rank: Frequent Contributor
timestamp: December 18, 2012, 01:18:25 am
content: What about aUNI 61E VS Fluke 77 Series IIOh and I found out I can only have one so what would you guys get

author: Wytnucls
author_rank: Super Contributor
timestamp: December 18, 2012, 07:46:40 am
content: All good advice from Modemhead.If you can only have one, I would say the 61E will probably be more useful to you for electronics work.If you decide to buy the 61E on the internet, get it from Franki, to avoid receiving a dud one. I met him in Hong Kong and I can say he is a first class guy.https://www.eevblog.com/forum/buysellwanted/brand-new-uni-t-ut61e-for-sale/
Fluke 8050a question - Page 1
Forum section: electronics / beginners

author: Noldir
author_rank: Newbie
timestamp: June 27, 2013, 12:54:43 pm
content: Hi everyone,I managed to score a Fluke 8050a (with leads, new battery and replacement screen) but I was wondering about the following:When I set it on 200mv I seen some fluctuation on the voltage measured with *no* leads inserted. As in it hovers around the 0 volt mark without ever really settling on it. Is that normal? I see some fluctuation as I start it on the other measurement ranges but those soon settle at 0.000 (for example). I also see some movement when I physicalle move the unit while it's on.All normal behavior I guess? I've only used a 10$ multimeter until now so...yea. A bit new to higher grade equipmentCheers,Rob.

author: pmcouto
author_rank: Unknown
timestamp: June 27, 2013, 01:32:17 pm
content: Hi Noldir,Yes, it’s normal.DMM’s high impedance input allows it to pickup and measure “noise” in the 200mV range.Try to connect the leads and short the probes together – The DMM should show 0.000 in that range.Regards,Pedro Couto

author: Noldir
author_rank: Newbie
timestamp: July 22, 2013, 11:53:53 am
content: Yup, that did the trick. Thank you!
Fluke 8050A voltage input mod - Page 1
Forum section: electronics / beginners

author: Raxios
author_rank: Contributor
timestamp: August 17, 2012, 09:18:18 am
content: Hello there.I already own a Fluke 8050A bench multimeter, and I'm very pleased with it. So that's why I decided to acquire myself another one. I found a good deal on one, and thus ordered it. Afterwards though, I've discovered that it's the 110V model, and since I live den Denmark, we have 230V mains. I then decided to crack that sucker open, and found on the input (A white wire (assuming live), a green/yellow (mains ground) and a black wire (assuming neutral). The white wire is wired to a hole with "110V" marked on it, and next to it is a unpopulated hole marked "230V" which my current meter is wired to.I suspected that it would be that easy, since it draws so little power, so I didn't suspect that Fluke would go through the hassle to make two different transformers for the two regions.The question is, is there anything else that I should be aware of, or should I just solder the white wire to the 230V hole and be good to go? I don't want to brick it with a stupid mistake.Thanks in advance!

author: mianchen
author_rank: Regular Contributor
timestamp: August 17, 2012, 10:41:40 am
content: I'd try measuring the resistance of the "230" and "110" winding, if the former is about 2x of the latter, I'll assume it's "ok" to just do what you intend to do. To be extra "safe" you could de solder the secondary first, measure it after the mod.

author: Raxios
author_rank: Contributor
timestamp: August 17, 2012, 11:08:25 am
content: Quote from: mianchen on August 17, 2012, 10:41:40 amThe resistance from 120V to ground is indeed about half of the 230V to ground.
Fluke 8060A IC's - Page 1
Forum section: electronics / beginners

author: dds
author_rank: Contributor
timestamp: December 24, 2012, 09:06:01 am
content: How to find which integrated circuits are these part numbers: 689224, 604819, 929828 for FLUKE 8060A DMM?from:http://assets.fluke.com/manuals/8060a___imeng0300.pdfThanks.

author: Jay_Diddy_B
author_rank: Super Contributor
timestamp: December 24, 2012, 09:54:31 am
content: Hi,The part numbers are shown on page 140 (schematic) of the manual.689224 IC,OP AMP,BPLR,LOW VOS,PA IB,S08 = Analog Devices AD705929828 IC,Rms-TO-DC CONVERTER,200 MV,TO-100 = Analog Devices AD636604819 IC,OP AMP,FET,PREC,LOW PWR,SNGL S,S08 = Analog Device AD820ARI have a few Fluke 8060A, none of mine have the RMS board in them. I don't know if this board was in later models or earlier models. All Fluke 8060As are RMS.Jay_Diddy_B
Fluke 83-1 Meter - Page 1
Forum section: electronics / beginners

author: xray
author_rank: Newbie
timestamp: December 08, 2017, 10:33:02 pm
content: What’s up guys! New to the forum but was recommended here by a 4chaner lol fairly new to the world of meters and have a question.I recently bought a fluke 83–1 meter.When the dial turns to AC volts with the leads untouched the air is 20-130v. In operation the meter is working as expected for every function.Why doesn’t it zero?Haven’t replaced battery, did swap leads, does it need calibration? Is it normal for this old meter?Someone replied if I held both leads together and press the rel that may solve my issue, not too sure, not home yet.I spend some money on this and really like the meter hopefully it’s nothing to crazy where I can’t diy. Pretty resourceful forum you guys have here, might be here more often since I work as a car mechanic and want to get into diesel generators soon then transition hopefully back and work as a engineer for tesla, if they don’t go bankrupt by that time 🙄

author: Electro Detective
author_rank: Super Contributor
timestamp: December 09, 2017, 12:20:00 am
content: I've got an 87-1 which is similarIn your case I would suspect the internal selector switch tracks may be a bit dirty and or some of the black (carbon based?) track material has crept around on to adjacent tracksand affecting the AC RangeThere should be posts here at EEVblog with pictures somewhere or links to external blogsDon't attempt Fluke dis-assembly or clean up/lube of the switch area if you're not familiar otherwise you may kill it...I'm confident some members will be along here asap with some tips, so hang in there

author: danadak
author_rank: Super Contributor
timestamp: December 09, 2017, 12:52:08 am
content: You could be experiencing pickup from power lines, instruments,lighting (especially fluorescent lights).Start by powering stuff down in your lab and see what dominates.Regards, Dana.
Fluke 8600 multimeter - Page 1
Forum section: electronics / beginners

author: stanko
author_rank: Newbie
timestamp: February 20, 2017, 12:44:57 pm
content: Receantly I was given Fluke multimeter 8600 A , instrument is power displey is flickering but all digits are ON, function switch is (mechanicaly) OK, I switch in DCV option and shorted Imputs DCV ( High and LO-DCV ) display show all zeros, I conected 1,5 V (batery sorce) dipslay started to blinking. The same sitation is in ohm and AC functions.Does anyone can tell mi what kind of defect is.Im doubth about ROM IC ( SN7488 AN designated on Schematic).

author: danadak
author_rank: Super Contributor
timestamp: February 21, 2017, 01:18:48 pm
content: Not sure, maybe some clues here -http://www.vintage-radio.net/forum/showthread.php?t=100156Regards, Dana.
Fluke 87 Questions - Page 1
Forum section: electronics / beginners

author: monkeykiller1996
author_rank: Newbie
timestamp: April 17, 2014, 11:33:32 pm
content: I'm new to fluke, i just bought my first fluke multimeter (the 87) and i was wondering a couple of things first off1. it there a way that i can measure temps like the 87-v can2. in decent condition whats the 87 worth3. is this a good multimeter for someone starting using fluke4. how do i tell when mine was made5.is there anything i should watch out for with this meter6.this is'nt really a question buts its kinda funny i paid $87(lol fluke 87 ) for it i thinks that's a bit much but what do i know i'm the one asking questions about it

author: retiredcaps
author_rank: Super Contributor
timestamp: April 18, 2014, 05:55:35 am
content: 1. Not directly. You need a separate device to convert temperature into DCV. Something like thishttp://www.fluke.com/fluke/caen/accessories/Temperature/80TK.htm?PID=553862. On ebay, assuming it is "fair" market value, anywhere between $80 and $120 depending on condition, fuses, probes, rubber holster, etc.3. Absolutely. The original 80 series (83, 85 and 87) are prone to certain problems like fading lcd digits, potentially bad input jacks wearing out due to lots of insertions, blown fusible resistor, but these problems are "known" and nicely documented athttp://mrmodemhead.com/4. If you call Fluke with your serial number (found on the back), they should be able to tell you when it was made.5. Yes, see #3 and modemhead's website.6. $87 is a good deal if the HRC fuses are good, you got decent probes and rubber holster. You should get many years of reliable use.

author: monkeykiller1996
author_rank: Newbie
timestamp: April 18, 2014, 06:54:02 pm
content: Thank it should be s good upgrade from the $16 one I used from Walmart and ya I got probes holster and everything screen looks amazing too, jacks are tight so cool I got a descent deal
Fluke 87V problem - Page 1
Forum section: electronics / beginners

author: huu_tri0101
author_rank: Contributor
timestamp: July 25, 2013, 05:40:04 am
content: I have just bought Fluke 87V. In Ohm measurement function, when I touch 2 probes together, 87V's screen shows 0.2 ohm.I think it supposes to be 0 ohm. Is there anything wrong with my 87V ?thank you. sorry for my English.

author: Huluvu
author_rank: Regular Contributor
timestamp: July 25, 2013, 05:50:44 am
content: Hi - No that's fully OK - because you are reading the overall resistance of your Probe attached to the Meter.You can Delta out that reading if needed.

author: eKretz
author_rank: Frequent Contributor
timestamp: July 25, 2013, 06:13:47 am
content: Yep and also you are getting some resistance from any contamination on the probe jacks and tips. I picked up a used 87 that read .24 ohm when tips were touched. I cleaned the probes tips and banana plugs with IPA and also cleaned the meter's female banana jacks with IPA and afterwards they read at .11 ohm.

author: Spunky
author_rank: Regular Contributor
timestamp: July 26, 2013, 02:50:22 am
content: As this is a cat4 meter, are your leads fused perhaps? these will always have a noticable resistance that you need to zero out.
Fluke 87V vs earlier models and GSM - Page 1
Forum section: electronics / beginners

author: Excavatoree
author_rank: Frequent Contributor
timestamp: October 08, 2010, 12:49:27 pm
content: I am placing this in the "beginner" section because of my ignorance, but this relates to the discussion about the 87V and the GSM problem.I know there is a significant difference between the 87-III and 87-V. (lets' leave the 87-IV out of this, as it is really a 187 and a different type of meter) Lacking any knowledge to explain any better, the 87-V "boots up" so to speak with the "F87" screen, while the earlier models just turn on.The older, square "70 series" (I call these "70 type") and the tapered 70 series (I call these "70 tapered type") are the older architecture (is that the correct term?)The newer 170, 87-V and others are the newer architecture.I wonder if the older 87s are less affected by the GMS signal? I wonder if the 170 series is affected just as the 87-V.

author: Simon
author_rank: Unknown
timestamp: October 08, 2010, 01:14:20 pm
content: the problem seems to be that out of some sort of stroke of ill luck which went un thwart by flukes testing and meant that, that particulat layout of PCB and components placement has made it vulnerable. I think it's a case of where they put one chip that made a difference if i remember what Dave said, but then it's up to Fluke to sort it out

author: Kiriakos-GR
author_rank: Super Contributor
timestamp: October 08, 2010, 06:42:45 pm
content: I can only say in public, that the technology that is in use at the 8(X)-V & Ex series 2008 , its not found in newer models .Even the 28II , that is an 2009 design , does not gets effected. (different CPU revision )The more complex models , uses totally different hardware.

author: EEVblog
author_rank: Unknown
timestamp: October 08, 2010, 08:52:23 pm
content: I believe (but can't verify) that earlier Fluke 80 meters used a different processor (custom ASIC?), and that Fluke may have done a design "reboot" to switch to the MSP430 processor, along with their other meters.The problem only effects the 87-V because there is a unique quirk in that model that makes it susceptible.Dave.
FLUKE 88 LCD SCREEN - Page 1
Forum section: electronics / beginners

author: gpoly1973
author_rank: Newbie
timestamp: February 15, 2022, 05:54:29 pm
content: Hello.I'm looking for a screen for my multimeter.I can not find it anywhere. I can put it from another model?I am desperatethanks

author: bdunham7
author_rank: Super Contributor
timestamp: February 15, 2022, 06:21:47 pm
content: AFAIK that LCD is unique to the 88 original series (I'm assuming you don't have the 88-V) and the p/n is Fluke 868088. There are online parts brokers that do show it as 'available', but I didn't see any that I'm personally familiar with so I don't want to make a recommendation there. What is wrong with yours? Sometimes they just need new zebra strips, original p/n Fluke 817460 x2, but I think the p/n has been updated. You see these for sale on eBay, etc.xDevs has the manual if you don't already.https://xdevs.com/doc/Fluke/88.pdf

author: gpoly1973
author_rank: Newbie
timestamp: February 15, 2022, 07:15:12 pm
content: 88 is, not V.His problem is that the screen has turned blackIf I do not find it, is there anyone here who sells it even used?

author: bdunham7
author_rank: Super Contributor
timestamp: February 15, 2022, 07:24:04 pm
content: It's a 30 year old meter that was not that common in the first place and was typically used in a rough environment. You might try the online brokers and ask for a quote for that part number, but beyond that it would be simply luck and patience that might allow you to bump into one.

author: gpoly1973
author_rank: Newbie
timestamp: February 15, 2022, 07:33:15 pm
content: You are right.It is difficult to find a spare part.thanks a lot for the info

author: Benta
author_rank: Super Contributor
timestamp: February 15, 2022, 07:34:22 pm
content: LCD displays are and were normally custom made (like a PCB). You can look for the original Fluke part or you're done.
Fluke 8840 Operation - Page 1
Forum section: electronics / beginners

author: watchmaker
author_rank: Unknown
timestamp: November 20, 2023, 05:08:10 pm
content: I have two 8840 Afs. Why do I have to clear the last voltage readings by shorting the leads? It slowly counts down but does not hold the exact value nor go to zero. Just an inconvenience. The Fluke 45 does not do this.Display clears "correctly" on resistance.Regards,Dewey

author: bdunham7
author_rank: Super Contributor
timestamp: November 20, 2023, 05:31:50 pm
content: Many voltmeters have a fixed resistance, often 10M, across the inputs. This quickly bleeds off bias currents and stray voltages thus you get a nice near-zero reading with open leads. Your 884x meters don't have this and thus have a very, very high input impedance--so high you really can't call it resistance because it is dominated by other effects. The very small internal bias currents and any external voltages charge up the tiny amount of input capacitance and then you see whatever that is reflected on the display. The reason this is good and not bad is that when you do an actual measurement, this type of meter puts a much smaller load on the circuit. Take a 9V battery and short it with 2 5M or 10M resistors in series, then measure the voltage across each of the resistors separately. With your 8840A/AF, the two will add up to the same amount as the battery voltage (which is correct) while your Fluke 45 will just be all wrong.The high impedance feature on these meters is only on the ranges of 10V (or 19.9999V range if you want to call it that) and lower. Manually range up to the 100V range and the input impedance becomes 10M just like any other meter and the "problem" goes away.

author: watchmaker
author_rank: Unknown
timestamp: November 20, 2023, 07:34:56 pm
content: Interesting. Thank you for the detailed explanation which I could in fact follow.Regards,Dewey
Fluke 89-IV vs 87-V. - Page 1
Forum section: electronics / beginners

author: Lotek
author_rank: Newbie
timestamp: April 22, 2016, 02:04:34 am
content: Data logging feature of the 89-IV aside. Which is the better meter? I have an offer to buy either one used for about the same price.

author: true
author_rank: Frequent Contributor
timestamp: April 22, 2016, 02:29:41 am
content: 89-IV is the better meter. Dual display, better accuracy and precision, data logging, ...I have several 189's and a couple 87-V. I use my 189's way more often. Either is a great meter.

author: retiredcaps
author_rank: Super Contributor
timestamp: April 22, 2016, 05:40:46 am
content: Quote from: Lotek on April 22, 2016, 02:04:34 amDepends what your requirements are and how you intend to use it. There are pros and cons to each.BTW, check the 89IV for the slow settle problem as discussed below.https://www.eevblog.com/forum/testgear/fluke-89-iv-slow-settle-in-5v-range/

author: Aeternam
author_rank: Unknown
timestamp: April 22, 2016, 10:20:08 am
content: The 87V defaults to AC when you switch it to amps so if you work mostly on DC circuits this can be a bit of a nuisance.And the auto-off is pretty good at predicting when I want to take the next measurement and switches the meter off just before that.But this is just nitpicking, the 87V is a great meter.

author: Rob835
author_rank: Newbie
timestamp: April 22, 2016, 02:04:14 pm
content: Defaulting to AC is a deal breaker for me. I find myself reaching for other brands of meters in my collection due to this stupid feature (or lack of). My V collects dust most of the time.

author: mzacharias
author_rank: Frequent Contributor
timestamp: April 22, 2016, 02:06:20 pm
content: The 89 IV is something of a battery hog compared to the 87V, yes?

author: true
author_rank: Frequent Contributor
timestamp: April 24, 2016, 06:16:35 am
content: Quote from: mzacharias on April 22, 2016, 02:06:20 pmYeah, a bit. But it uses AAA vs 9V in the 87V.

author: fergch
author_rank: Contributor
timestamp: April 25, 2016, 11:22:40 pm
content: AA on the 89iv, same as the 189 ...

author: Karlo_Moharic
author_rank: Regular Contributor
timestamp: April 26, 2016, 08:26:20 am
content: I would go with 87V just because it's the most used one in electronics , and unless it's the older version with gsm problem it's pretty much indestructible.

author: Lotek
author_rank: Newbie
timestamp: April 26, 2016, 09:56:26 pm
content: I ended up getting the 89 IV new in the box. This meter is firmware 1.01 but does not seem to have the settling problems shown by some users. Thanks for all the help.Lotek
Fluke 97 Scopemeter - Workbook? - Page 1
Forum section: electronics / beginners

author: Unknown
author_rank: Unknown
timestamp: May 20, 2019, 02:33:39 am
content: Hi everyone,I recently purchased an old but nearly mint Fluke 97 Scopemeter, with it's hard case and a few accessories. I'm a heavy equipment mechanic, and am hoping to learn a lot more about the electronics side of how things run these days by learning how to use it. I'm fairly green to these things, and am already working through some of the online tutorials and videos that have been posted here already. Awesome stuff.What I was hoping to find though is the student workbook that's mentioned in the Fluke 97 training video uploaded to YouTube. I've contacted Fluke, but they have long since mothballed or gotten rid of anything relating to this old model. Does anyone here have one, either PDF or hard copy?Thanks in advance!

author: stj
author_rank: Super Contributor
timestamp: May 20, 2019, 12:05:06 pm
content: the 97 was a colab between Fluke & Philips - maybe Philips can help?

author: Unknown
author_rank: Unknown
timestamp: May 20, 2019, 10:35:17 pm
content: That's right too, maybe I'll reach out to them.
Fluke DSP-4100 and DSP-4300 Repairing - Page 1
Forum section: electronics / beginners

author: NinjaPirate
author_rank: Newbie
timestamp: December 27, 2024, 05:41:24 pm
content: Hi All,I have been trying to figure out a problem with my Fluke DSP-4100 network tester and am getting nowhere so am after some guidance on where i should be focusing (I'm not the most skilled with electronics repair but have done soldering/ basic voltage testing etc.)I have a DSP-4100 Smart Remote that no longer powers up, when turning the dial to on you hear a slight buzz noise but no leds light up. I have tried additional batteries known to be good from the main unit but still the same 'error'. As the main unit has recently come up with an internal battery error I measured the internal batteries on both the main unit and smart remote, both were low so i ordered up some replacements and soldered in - still no dice on the smart remote but the main unit is now happy.I have then brought a couple of DSP-4300 Smart remotes from eBay thinking i could do some part swaps or just use one of those instead, turns out you cannot use a DSP-4300 remote with a DSP-4100 main unit, unless someone knows a way?I have tried swapping the top control board (the dial section), didn't make any difference. I tried changing the middle board, still nothing. Oddly if i plug a charger into the non-working unit with any of these boards replaced the slight buzz seems to repeat as if the unit is trying to start. If i plug a battery into the unit and apply the charger is does seem to charge the battery.I read through a great post on the forum about a DSP200 which helped me with the internal battery replacement but as it is for a different unit doesn't give much additional help on what else i could try. I am guessing the ROM chip has gone bad but no idea how i go about replacing that or even if i did how i would program it again?Any assistance would be gratefully appreciated, my knowledge is a bit exhausted but i am willing to learnIt's been a trusty little tester and i would hate to part with it so anything i can do to bring it back into service!

author: lunar
author_rank: Contributor
timestamp: December 30, 2024, 02:42:36 am
content: For starters, you need to understand basic electronics troubleshooting. 1. Check the voltage rails. 2. Check that the main micro powers up and has a clock signal. 3. Look for some activity on the micro data lines.Youtube has an endless amount (more than a lifetime's worth) of electronics troubleshooting videos. Start with some Signal Path videos, and maybe some Learn Electronics Repair or EEVblog repair videos, and that will give you some idea of what you are getting into.If you want to troubleshoot here, post some pictures of the boards, and at least start by showing the voltage rails are operational. An oscilloscope is preferred, but you can post pictures of a DVM if that's all you have. Look for any blown components. What do you think the failure mode of the network tester was?There is a very likely chance that you won't be able to fix it, so don't get your hopes up too much.
Fluke i200 Amp clamp with oscilloscope? - Page 1
Forum section: electronics / beginners

author: Nivr
author_rank: Newbie
timestamp: October 08, 2020, 12:43:52 pm
content: Hey,As stated in the title, I've got a Fluke i200 AC clamp (not i200s)It outputs 1mA per every Ampère going through it, this is just fine for measuring with a multimeter, but what if I want to view the current waveform with my oscilloscope?I know the i200s would be a better option, as it already has a BNC connector and outputs a voltage in relation to the current passing through it, but I'd like to stick with what I already have, for obvious cost reasonsI was thinking about just putting a 1k ohm resistor across the terminals; this would then, parallel with the 1M ohm scope impedance create a 1000 ohm resistance.This would then give one volt per amp, I think...Is this thinking correct?Any obvious traps for young players? Bandwidth, distortion, ...In the manual (https://dam-assets.fluke.com/s3fs-public/i200s___iseng0500.pdf) for the i200 I found this. What exactly is meant by load on output? If this is the minimum load impedance on the clamp, above will not work.Thanks in advance for any insights in what should be a simple problem :p

author: PartialDischarge
author_rank: Super Contributor
timestamp: October 08, 2020, 01:01:34 pm
content: No, you can't load the probe with 1k, as the current source does not have that voltage compliance. Use a 1Ohm/2Ohm resistor and connect that to the oscilloscope.If this probe is for power electronics, other than 50Hz work, get a proper AC rogowski probe.

author: Nivr
author_rank: Newbie
timestamp: October 09, 2020, 09:00:35 am
content: Thanks, I'll try a 10 ohm.
Fluke IC 612713 - Page 1
Forum section: electronics / beginners

author: dds
author_rank: Contributor
timestamp: December 28, 2012, 08:38:18 am
content: Does the anybody knows substitute for this part No?Thanks.

author: Unknown
author_rank: Unknown
timestamp: December 28, 2012, 08:47:19 am
content: As far as I know it's a Fluke proprietary IC. The only source I'm aware of is a parts donor 8060A/8062A.
Fluke PM3394b horizontal deflection problem in digital mode! - Page 1
Forum section: electronics / beginners

author: George_V
author_rank: Newbie
timestamp: July 10, 2020, 08:18:07 pm
content: Hi,since this is my first post I want to greet you all.I need your advice please. I'm not an advanced technician in theory and I mostly do microsoldering.I have a issue with my oscilloscope. Suddenly has started to do like this as you can se in the video.https://youtu.be/1vVuc69EoMEI tried and calibration which was unsuccessful and there was an "Error code 181" at the maintenance menu.Sometimes is working fine and sometimes not. That's why I've opened it and did some check inside.BTW, is it normal to be such high temperatures inside as you can see in this pictures taken with the thermal camera?Everywhere I checked there was more than 80° C.Is it something related only to soldering or it is need for some spare parts to replace?Any advice to fix it is really apreciated.Kind Regards!
Fluke Scope 105 Battery options vs DIY. - Page 1
Forum section: electronics / beginners

author: chinoy
author_rank: Regular Contributor
timestamp: June 01, 2019, 11:19:50 am
content: Objective of the post.1. How to build a good bat for the Fluke.2. Beg for the service manual. 105B So I can figure out how to build a PCB replacement for the keyboard foil. And chk the bat part of the circuit.If you look at most of the DIY options for the bat.Things seem to be over complicated.If you see what is being sold on Amazon.https://www.amazon.com/dp/B00444NTZQ/ref=psdc_552354_t1_B002DQA6NUAll these look like 4x18350 bats with no board.This would give you about anywhere from 3.7x2= 7.4 V or max 4.2x2=8.4Most 18350 bat has a max Mah of 1000 so at best your going to get 2000 Mah more like 1500 Mah in most cases.Your next option is to use 18650 x 2 which would give you about 3000 mah. Way better than those crappy 18350 bats.But I would like to confirm that I can fit two 26650 4200 Mah bat into the compartment. This would any day be better than any 18350 bat you pay 20$-30$+ for.Here is the one Im usinghttps://www.directvapor.com/efest-green-26650-4200-mah/My only problem is that when I chk the voltage at the charging tab I get 7.8 Volts.Im not sure if this is right. It should have been more. Maybe my power supply to the Fluke is not original its 12 volts vs the stock 15. But everything seems to be working. I did find one guy who built a bat pack. And he was talking about the voltage at the tab being 8.5 Volts. Fluke 97 I think. But everything works fine even with 7.8v. And the bat would last forever if I only charge it to 7.8Lastly I need the service manual to see if it has any info that would help build a PCB to replace the Foil. And study the bat charging bit.I work at the race track so my scope needs to last me thru a weekend. And I am sure the 26650 bat will do a better job than anything else out there.
Fluke Scopemeter 123 and 3 Phase. - Page 1
Forum section: electronics / beginners

author: MBaker
author_rank: Newbie
timestamp: November 02, 2014, 02:26:48 am
content: Hi,Just getting to grips with my newly acquired Scopemeter 123 and while reading the manual it says "Do not connect the ground wire to voltages higher than 42v peak from earth ground".Does this mean that I can't connect 'Input A' to one 240v phase and the 'COM' to another 240v phase to measure the average across two phases as I would do with a standard multimeter?Don't want to damage my meter.Thanks in advance.Mike.

author: johansen
author_rank: Super Contributor
timestamp: November 02, 2014, 03:04:29 am
content: that's why they make x10, x20 and x100 probes.

author: MBaker
author_rank: Newbie
timestamp: November 02, 2014, 11:44:33 am
content: Many thanks Johansen. I won't ask any further questions. I'll go and educate myself on x10 probes etc to find out why.I think that 2 hour video on here of scopes for dopes would be a good place for me to start so I'll go and watch that.Thanks for the reply.Mike.

author: fubar.gr
author_rank: Unknown
timestamp: November 02, 2014, 03:34:58 pm
content: The COM lead is supposed to be connected to mains earth only.Does this scope have a MATH subtraction function (A-B)? Then you can do a differential measurement using both channels.Else, you'll need a differential probe like this:http://en-us.fluke.com/products/all-accessories/fluke-dp120.html#overview

author: johansen
author_rank: Super Contributor
timestamp: November 02, 2014, 11:08:53 pm
content: that scope meter is designed for floating operation at up to 600 volts at 400hz, you'll see in one of the videos on the website he clips the black lead to L1 and the probe to L2 of a vfd and he shows you the output.That said, it appears fluke is too righteous to ship you a x10 probe with the fluke 123 by default, its an optional accessory(yes, be very careful that you don't connect the ground lead of a second probe and make a current loop, blowing both leads up..) (though it might have double fused inputs, idk)

author: MBaker
author_rank: Newbie
timestamp: November 03, 2014, 10:59:19 pm
content: Thanks all.Yes it does have a Phase setting where it will measure the differential and deg between input A and B. Found it last night while playing around with settings.So looks like the correct way is to ground the Com lead, then connect probe A and B to a phase each with their ground leads removed and use Phase mode.Yes it does seem like everything is an optional extra with Fluke. It is great kit and I'm always pleased with the quality and available settings.I guess you get what you pay for, then if you pay extra and then some more you get what you need.I looked at buying an optical interface lead to do firmware upgrades but the price is just ridiculous for what it is. Think I'll stick with the firmware I've got.
Fluke TL71 dead spots? - Page 1
Forum section: electronics / beginners

author: Mp3
author_rank: Frequent Contributor
timestamp: April 24, 2020, 09:16:41 am
content: I am real confused by this. I always thought the leads that came with my Fluke 101 had spots where the readings were inconsistent or just didnt happen. As a result i try to measure on the little indent after the pointy tip for reliable reading.I got a set of Fluke TL71 leads off ebay marked as "Authentic" and they show the same behavior on both my 101 and HP 3478A!meanwhile some DIY leads I made out of old copper (non-tinned) solder tips and some cheapo plastic-stick style with needle point probes measure everything quickly and accurately.What's more , the TL71 page on Fluke's site has an average review of 1.5 out of 5 stars!What the heck , is this by design with the Fluke leads?I mean dang it , these plastic sticks aren't CAT certified, but as long as i'm measuring small currents under 50v, i'll be danged if these plastic sticks don't do the job nice and effortlessly

author: Electro Detective
author_rank: Super Contributor
timestamp: April 24, 2020, 10:33:14 am
content: fwiw I've got a bucket load of these same Fluke supplied leads collected over the yearsand whilst they aren't the most easiest or behaved multimeter leads to handlethey are hard to kill and with non crusty probe tips, give steady readingsBut you do have to keep the meter sockets clean and check that the shrouded lead plugs are not pressed in and make a loose intermittent fiti.e. you have to expand the four sections(+)a bit, and very very carefully, or you'll snap off a section.If everything is clean and adjusted, TL71s get it done good enough