I wasn't sure about this meter. Seemed to be a good price and good spec but what is it really like to use?
Пікірлер: 98
@pradeepbansod33344 жыл бұрын
Very nice and helpful review. A couple of comments -- if the meter shuts off through the auto shut-off, it can be restarted (without twisting the knob) by pressing SEL and VFC simultaneously. Also, if desired, the auto shut-off can be disabled by hoding down SEL when turning the knob from OFF to any other position. The meter will still beep after 15 minuutes as a reminder but will not switch off. Once the knob is returned to the OFF position the auto shut-off is re-enabled the next time the meter is turned on. As far as the blue ranges, I too am puzzled. I thought they might have something to do with the VFC button, but that only works in the AUTO Volts setting in AC mode. Would be great if someone figures that out.
@razenby4 жыл бұрын
Great tip. Thanks
@robinfavron65032 жыл бұрын
Nice, in-depth, honest review. Thanks for your hard work. I believe 0L stands for open line or outside limit.
@razenby2 жыл бұрын
Thanks for watching. I still use the Mestek every day except for buzzing out when tracing tracks on boards!
@iankidd6654 Жыл бұрын
Great Video. Are you able to advise what the VFC button does please
@razenby Жыл бұрын
Thanks. It enables teh frequency measurement and display on the LCD only when set to AC mode.
@Ahmed.Diesel3 жыл бұрын
i have one and i'm facing problem when using outdoor the display not clear under the sun
@razenby3 жыл бұрын
Not bright enough. I revert to an LCD display meter for outdoors. Even on a bright overcast day it is a problem. The display and the delay between making continuity and the continuity beep are the only issues I have with this meter. Mine is getting a bit scrappy now but no faults after suing nearly all day every day since I made this video. I have a boxed new spare one on the shelf.
@iankidd66542 жыл бұрын
I agree
@gadgetsage3 жыл бұрын
Thanks, looking at buying one this was really helpful
@razenby3 жыл бұрын
It is a good meter with a couple of issues that are mentioned in the review. I use it intensively daily and it is accurate and fast to settle, I am only forced to reach for the UNI-T when I need to zip around when reverse engineering boards.
@fu1r411 ай бұрын
5:30 Auto shutoff is 15 minutes and you can turn it on again without moving it to off. If you press SEL and V.F.C. it will turn it on again.
@razenby11 ай бұрын
Thanks for the tip. I still use one of these daily. I am on my third one,.
@petermainwaringsx3 жыл бұрын
I have the DM100 and I agree the display is rubbish in daylight. With the one I have, pressing the SEL button wakes it up if it's timed out.
@razenby3 жыл бұрын
Pretty good otherwise though....??
@petermainwaringsx3 жыл бұрын
@@razenby Yeah, great value for the money. My son gave me a spare Fluke 77 he had today, real bargain. :-)
@razenby3 жыл бұрын
@@petermainwaringsx I still use my Fluke I used every day in the Mid 80s.
@petermainwaringsx3 жыл бұрын
@@razenby I think it may be the one I gave to my son back in the 80's that he's returned to me. He seems to collect them now, along with Weller TCP's.
@iankidd66542 жыл бұрын
Thanks for a great video. Did you get any further with the V.F.C Function. Also did you find out what the max frequency it would read
@razenby2 жыл бұрын
It was still reading OK at 1.3MHz and the Mhz icon appeared that wasn't documented,
@tigrisster Жыл бұрын
Firstly, thank you for the video. It was really usefull for me. But I have a question. Is this good for measure uA ( like 5 microamper) ? Because i need that for thermionic emission test.
@razenby Жыл бұрын
Yes it will measure it. Refer to the specification for the accuracy. The displayed resolution on the 100uA range is 0.01uA. I have no reason to believe that the specification for this product is wrong as it has met it's spec on the all the ranges where I have tested it.
@tigrisster Жыл бұрын
@@razenby Thank you very much.
@lorencing2 жыл бұрын
Nice demo, thanks. When do you think one should buy this model over the DM91A? IS it wort the extra few euros/bucks?
@razenby2 жыл бұрын
Thanks. I use DM100C meters every day in an electronics context. The DM 91A doesn't appear to offer anything except a simplified (compact) version of the DM100C with fewer options. It is smaller and has only auto-ranging which means that you have to wait for the display to stabilize as it does the auto ranging which may be slower if you are doing a lot of measurements. The DM91a has a cheaper display (A plain LCD) but in my opinion this is an advantage as the DM100C is very hard to see outside even on a bright overcast day. What I would like to see is a version of the DM100C with a straight LCD display. I would buy one today. So, if you want a compact meter to use outside and you dont need the additional set ranges and functions the get the DM91A. For my money the 100C is much better value.
@knoxieman4 жыл бұрын
Superb video 👍👍 subbed
@razenby4 жыл бұрын
Thanks and welcome
@jesterraj3 жыл бұрын
Some minor improvements and this would be a great lil meter
@razenby3 жыл бұрын
I agree. It is pretty great for the price though..
@jesterraj3 жыл бұрын
@@razenby To be honest i just bought it cause of the screen..@50 you know the eye aint all that good...but my main meter is a Agilent 1242....Fluke is over rated...
@razenby3 жыл бұрын
@@jesterraj I agree, Fluke used to be outstanding but then along came the Chineeese....now it is just overpriced.
@DIET_ALIGARH2 ай бұрын
can it measure current below 100micro amps
@razenby2 ай бұрын
Yes.
@drummingsim2 жыл бұрын
Great review! This seems to be the same as the "Neoteck EBTN LCD" model that I picked up from Amazon. Wonder if it's the same model with a different brand on it? Seems excellent so far.
@razenby2 жыл бұрын
It looks the same - identical in fact so it probably is. It is such a great meter. I only wish they they would sort the delayed continuity beep, fit a daylight visible display and make the probe pugs linger so that they engage much deeper in the sockets in the body of the meter. They just hang on by the tip and if the lead moves or you move the meter then you have to push them fully home again. I have got into the habit of pushing them in each time I take a measurement, especially when I am working with high voltages. However it is a great meter for the price. I use it every day.
@akudiluar7964 жыл бұрын
I am looking for an auto range multitester that is equipped with protection from 220 volt voltage so as to avoid damage when measuring 220 volt voltage but the selector position is wrong. does this multimeter have such protection? Such protection is important because I often forget to turn the selector in the right direction so that the multimeter burns and breaks
@razenby4 жыл бұрын
Yes it is protected.
@nasalmaskari57683 жыл бұрын
What's the maximum range to test capacitors in this multimeter? Waiting for your reply please
@razenby3 жыл бұрын
I have use this daily for just over a year and the cap range works well enough. Claimed spec: Capacitance Range: 9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/999.9μF/9.999mF/99.99mF Capacitance Resolution: 0.001nF/0.01nF/0.1nF/1nF/10nF/100nF/1μF/10μF Capacitance Accuracy: 9.999nF ~9.999mF: ± (4% reading + 3 digits); 99.99mF: ± (5% reading + 3 digits)
@nasalmaskari57683 жыл бұрын
@@razenby really perfect! And thanks a lot for your response 🙏🙏🙏🙏🙏
@alka7x93 жыл бұрын
Thanks for the real life review. It really helps to get a true view of it. I doubt the guys who designed this device actually use it. They would have fixed the "annoying" weaknesses.
@razenby3 жыл бұрын
You are welcome.
@humacao013 жыл бұрын
For board repairs would you recommend this one or your other one or its brand, since you mentioned the continuity delay. Any actual recommendation even if not these 2.
@razenby3 жыл бұрын
I believe that this is the best meter for the price. I have use this intensively daily . The only drawback is the low brightness display in average daylight and the continuity beep delay. I bought a few others for the office but this is the go to meter for me so far. It doesn't eat the batteries. Lack of immediate continuity beep when reverse engineering / checking is an issue. If I am trying to locate where a board trace goes and I cant see it the trace I usually revert to my old meter for this as the delay prevents it beeping when scooting along a row of pins on a chip.
@jayrobert48863 жыл бұрын
i guess Im randomly asking but does any of you know of a trick to get back into an instagram account?? I was stupid lost the account password. I love any help you can offer me
@yousefjohan59033 жыл бұрын
@Jay Robert instablaster =)
@jayrobert48863 жыл бұрын
@Yousef Johan I really appreciate your reply. I found the site on google and I'm trying it out atm. I see it takes a while so I will reply here later when my account password hopefully is recovered.
@jayrobert48863 жыл бұрын
@Yousef Johan It did the trick and I now got access to my account again. I am so happy:D Thanks so much you saved my account!
@n.r.2258 Жыл бұрын
LEAD is permanent on, even though there is no prope in at all. Can anybody help ?
@razenby Жыл бұрын
Take it apart and clean/inspect the switch contacts. Mine failed in this way and I cleaned the wipers and PCB surfaces and it worked for about another 9 months.
@n.r.2258 Жыл бұрын
Thanks for you’re reply … appreciated… unfortunately could not solve the problem.
@telosfd Жыл бұрын
I must say this, that when we measure any electrical unit, be it voltage, amperes, ohms, etc., the indication should always appear approximately in the middle of the dial. We cannot, for example, measure a resistance of one hundred Ω and set the option to one hundred ΜΩ.The measurement looks wrong! Nice presentation, but I couldn't watch the whole video. Just to ask if there is a probe inside the box for measuring temperature. I am looking to by one for my collection. Thanks.
@razenby Жыл бұрын
Yes there is a probe. The one in the video failed in July 2022 after almost daily use for 18 months. I had to take it apart and clean up the rotary switch contacts on the main PCB and the wipers. Works OK now. Not that shabby a tool.
@ScarredRomeo4 жыл бұрын
Removing the cover and putting it back on is way too difficult and it annoys the hell out of me. It makes me want to return it. It's a shame. It looks really nice.
@razenby4 жыл бұрын
I suppose the alarm that sounds when the current inputs are plugged in makes blowing a fuse is less likely. Usually when I blow a fuse it is because I have forgotten to switch leads around.
@MirceaD284 жыл бұрын
@@razenby Can you do an LED and a transistor test? I'm planning to buy this model. Would you recommend it? Can you do a comparison between this one and UNI-T UT89X UT89XD?
@razenby4 жыл бұрын
You can do continuity checks on a transistor to see if shorted and if the junctions are good on NPN and PNP using the diode continuity mode. Red and green LEDS will meter OK on the Diode continuity mode but white blue may not register as the maximum test voltage on the DM100C between the probes is ~3.2V which means that it isn't isn't sufficient to make the LED junction conduct when forward biassed. of course you can test for shorts..
@janebezerra63994 жыл бұрын
Muito bom este multímetro Ci eu tivesse dinheiro ia comprar um
@pradeepbansod33344 жыл бұрын
Actuallly, it turns out you just need to press SEL to re-start after auto shutoff, don't need to press VFC
@razenby4 жыл бұрын
Just tried on mine doesn't do that. I did send a link to MESTEK telling about the issues. The slow response to continuity beep and poor visibility of the display in daylight is still annoying.
@pradeepbansod33344 жыл бұрын
@@razenby Strange that it doesn't work for you! I have been using for about 1 month now and my only 2 real complaints are (1) the leads plugging into the sockets can be tricky as you have pointed out and (2) the temperature measurement is really off. I tested the probe against 3 temps -- Ice floating in water, my body temp, and steam coming out of a kettle, and all 3 temps are off and not in even a constant way. What has been your experience with the temperature measurements? Maybe you can add to your feedback to Mestek.
@pradeepbansod33343 жыл бұрын
@@razenby Hi, I was wondering if you got any respnse from your feedback to Mestech? Also, how do you send them feedback? I am interested in reporting the problem with the temperature probe and see if they can do something to fix. Is anyone else having a problem with the temperature measurements?
@razenby3 жыл бұрын
@@pradeepbansod3334 The address I used is 'sales@mestek-tools.com' . I haven't tried the temp measurements. Could it be your thermo-couple?
@pradeepbansod33343 жыл бұрын
@@razenby Thanks! I will defintely write to them. Yes, it could be just the thermocouple, but would help to know if others are having the same issue. Feedback always welcome! BTW, are they responsve to your e-mails?
@alien8r33d4 жыл бұрын
22:56 That looks like a Zener diode to me. I got one of these meters yesterday. I've not had a chance to play with it properly yet, but at first glance it looks pretty darn good for £22 delivered (from here in the UK! ). The LCD on yours looks blue in the video, is it? Mine's white, and reasonably bright too. The fact that it is 10000 count, has both auto/manual ranges and dual display, means it had to be a bargain... and from what I've seen, it is.
@razenby4 жыл бұрын
I bought 3 for the office. Displays are all the same. I have been using it every day for about six months. Annoying things: 1. Display is too dim to use outside. 2. The diode mode beeper is to slow to respond for head-down continuity tracing on PCBs. 3. The leads don't always make contact in the socket. They only need to be a couple of mm from being plugged in they lose contact. I had a look inside and the contacts in the meter leads only engage bu about 3 to 4mm so if you knock it it stops reading until you shove it home again.. Otherwise a very good meter for the money.
@jesterraj3 жыл бұрын
Whats the VFC do??
@razenby3 жыл бұрын
On later models it wakes up the meter if it has gone into standby (doesn't work on mine). Voltage Frequency measurement???? I use thing every day and have never touched the VFC button... I have the instructions here so Ill have a look.
@akudiluar7964 жыл бұрын
i like dm 100 there is a protection feature so it doesn't burn when measuring 220 volt voltage even though the selector is misdirected but unfortunately it's not yet auto range. which multimeter has safe protection such as mestek dm 100 but has auto range
@razenby4 жыл бұрын
DM100 has auto range setting for Volts and Ohms.
@pezazy3 жыл бұрын
What is the maximum value you measure in capacitors?
Use diode continuity mode. The forward voltage drop (you will see a glow) varies between technologies so some Blue LEDs wont glow.
@hamzehalhur3704 жыл бұрын
what does mean V.F.C. function
@razenby4 жыл бұрын
V.F.C variable frequency voltage measurement. It means that it has a button that noone else has!
@davidmelksham183 жыл бұрын
My meter has locked into auto shut down and does not respond to the suggested methods of re-instating do you have any more options
@razenby3 жыл бұрын
Only the usual thing like remove the batteries and wait a while and then try again. Was it dropped or did it get wet? We have 5 of them here at the office and they are used every day,. No failures so far....If you dropped it hen take her apart and have look for damaged contacts or cracked PCB etc.. Otherwise contact Mestek.. the might replace it for you. If you want to send it to me I'll take a look and put up a video about it.
@sumanmasanta95464 жыл бұрын
HOW TO BUY THIS PRODUCT FROM ONLINE WEBSITE NAME SEND ME
@razenby4 жыл бұрын
Banggood or ALiExpress is are the cheapest source that I have seen
@IIGrayfoxII2 жыл бұрын
This looks like it is a rip off of a Mas-Tech MY74 unit The Mas-Tech also beeps off in the same fashion.
@razenby2 жыл бұрын
Probably. In spite of this they have done a pretty amazing job for the price.... Just a couple of things that annoy. This one is still going strong after daily use on HV equipment. It has been dropped and thrown around. The connector pins on the test leads that were supplied with the unit aren't long enough - they only engage by maybe 4 mm so they frequently lose contact when the leads are moved. I use different test leads.
@IIGrayfoxII2 жыл бұрын
@@razenby There is another rip off of this DVOM. Richmeters RM406B It had a faster latching in continuity mode by using non cheap leads
@TheSecretSeven19413 жыл бұрын
What a boring video .....repeats himself ... how about showing how to use it