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XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

CMS 8100 38
This content has been translated » The original version can be found here
  • In the next article devoted to the gadget that has a chance to appear in the Elektrody shop, I would like to present you a very small and handy multimeter (or actually a "multimeter") of Chinese production (of course, of course).

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    For the price of about five dollars, we can buy a very cheap and tiny "gauge".
    Although this "toy, together with the 6F22 battery (which is not included), weighs more or less as much as the battery, to my surprise it is quite a functional multimeter. However, for less than PLN 20 with shipping, there is nothing to complain about. it even had boxes, was wrapped in shrink wrap and wrapped in bubble wrap.
    The set also includes "test leads". However, their quality leaves much to be desired. So I used my own.

    Below, I present a dozen or so photos showing the comparison of measurements with the "meter" that I use every day. It is impossible to disagree with the facts. This little Chinese "cockroach" looks perfectly correct as far as the measurement results are concerned.

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    On the above photos you can clearly see how tiny this "multimeter" is. Unfortunately, the thickness is close to "standard" multimeters. You can also see that it has a screen backlight. However, once it is turned on, it cannot be turned off. You have to set the selector knob to OFF, thus turning off the entire device. When turned on again, the backlight will be off by default.
    There is also a HOLD button that allows you to "freeze" the result of the current measurement.

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.
    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    The photos at the top show a comparison of DC voltage measurements ranging from five to thirty volts. My power supply doesn't really give the full 30V, but we can skip that.

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    Here (above) we can see the current measurement (interestingly, the meter "can" measure only direct current),. As you know, ammeters should not be connected in parallel or in series (and here you have a chance to prove yourself and write why). Therefore, the measurement is performed alternately on both multimeters. On the same test leads.
    A 12V 21W car bulb was used as the load. The supply voltage in the first case was 12V, and 5V in the second.

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.
    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    Alright. DC voltage, it measures quite correctly. So let's see how this little one deals with AC. In the pictures above I have recorded a comparison of measurements in the range of 12VAC to 285VAC.

    Now it's time to test the ohmmeter:

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    As you can see in the photos above and below, when measuring resistance, the results are perfectly acceptable. Especially since, as you probably noticed, the measurements (due to my laziness) were made on two different resistors from the same package. And we know that even in one "strip" of 100 pieces, they will be different.

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    I have not tested the HFE measurement of transistors, because although I have this function in all my multimeters, I have never used them in my professional or amateur career.

    I forgot one more important thing. I scanned the user manual for you.

    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    Summarizing.
    It is quite a useful tool (apart from the tragic quality of test leads). If it appears in the electrode shop, it will certainly be useful to many young electronics enthusiasts. And even if someone spends the $ 5 and buys them on their own, and then "measures", for example, the resistance in a 230V socket, it will not be a regret.

    Best regards.
    CMS

    EDIT: 2018-07-26 16:53

    At the user's request, I add photos from the center of the multimeter.

    piotr_go wrote:
    Please pics from inside.


    XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.

    As you suspected, we will not find out what integrated circuit the meter is built on, because we only have a "black dot".

    Cool! Ranking DIY
    Can you write similar article? Send message to me and you will get SD card 64GB.
    About Author
    CMS
    Administrator of HydePark
    Offline 
    CMS wrote 6705 posts with rating 1699, helped 153 times. Live in city Warszawa. Been with us since 2004 year.
  • #2
    kokapetyl
    Level 43  
    CMS wrote:
    and then "measure", for example, the resistance in a 230V socket, it will not be a regret.

    It's worse if someone tries to measure the current, because resistance can still be done with the right setting.
  • #3
    CMS
    Administrator of HydePark
    Either way, if the magic smoke leaves our multimeter, it will stop working.
    it does not change the fact that you will not regret such a cheap gauge.
  • #4
    kokapetyl
    Level 43  
    CMS wrote:
    it does not change the fact that you will not regret such a cheap gauge.

    It will most certainly regret it when it goes to the afterlife. :D
  • #5
    robokop
    Moderator of Cars
    Echhh, 5 baksów - in 93, probably, when I bought the first digital multimeter, the successor of the C4353 (hallelujah, no longer needed a calculator!) I paid almost 700,000 for it. PLN - the teacher then earned approximately 5 million. PLN. XL830L - A tiny, cheap Chinese multimeter. - Test / Review / Opinion.
  • #6
    M. S.
    Level 34  
    Quote:
    As you know, ammeters should not be connected either in parallel or in series


    Parallel connection of ammeters does not make much sense, but you can check the readings in series. The same is with voltmeters. You can check it in parallel, in series - it doesn't make sense.
  • #7
    kokapetyl
    Level 43  
    M. S. wrote:
    but it is possible to check the correctness of indications in series

    But you will not correctly measure the current flowing in the circuit you are going to check it.
    The instruments should show the same value, but it won't be the true size.
  • #8
    M. S.
    Level 34  
    This article was about the comparative measurement of two measures, I suppose.
  • #9
    piotr_go
    DIY electronics designer
    CMS wrote:
    a gadget that has a chance to appear in the Electrode shop

    Do not scare.
    After all, it's some antique scrap.
    The pocket UNI-T was 100 times better.

    Please pics from inside.
  • #10
    p.obelix
    Refrigeration equipment specialist
    I am waiting for reviews of a decent multimeter at an affordable price. Yes, in the range of PLN 200-300
  • #11
    KaW
    Level 34  
    The author compared rather two unknown integrated circuits - possibly - the same type - inside these devices - one probably in a large standard housing and the other in the form of a plastic drop on the electronic circuit.
  • #12
    Owen27
    Level 11  
    p.obelix wrote:
    I am waiting for reviews of a decent multimeter at an affordable price. Yes, in the range of PLN 200-300


    I have a Sanwa RD701, indication up to 4000, measurement of frequency, capacity, temperature, true rms, nice meter. Possibly newer CD771 / CD772 but somehow I'm not convinced by their appearance.

    It is also worth taking an interest in Aneng AN8009, for about PLN 70 we get an indication of up to 10,000 and power from two AAA sticks. It's not as well made and doesn't have as good security as sanwa but as a second meter or pocket / portable it's great, especially the resolution of the measurements is tempting.
  • #13
    CMS
    Administrator of HydePark
    piotr_go wrote:
    Please pics from inside.


    It can be done

    p.obelix wrote:

    I am waiting for reviews of a decent multimeter at an affordable price. Yes, in the range of PLN 200-300


    Send it :) I will review. :)

    I received the meter from Gulson for testing.
    Today I will describe another small meter with True RMS and 6000 resolution. But I cannot promise that I will be able to publish it today.
  • #14
    User removed account
    User removed account  
  • #15
    szeryf3
    Level 22  
    For me, I always have two meters on the table: the first is the Fluke 289, and the second is the Mastech M-830B, but the latter is most often used because it costs pennies. In addition, I also have a drawer similar to the M-830.
    @CMS your advertised product will be a nice alternative for some of us and a nice device for beginners.
  • #16
    CMS
    Administrator of HydePark
    piotr_go wrote:
    Please pics from inside.


    I added in the first post.
  • #17
    HD-VIDEO
    Level 40  
    Well, the set with the meter should also include a soldering iron to replace the fuse and the IC looks like an ICL7116 clone
  • #18
    CMS
    Administrator of HydePark
    The fact that this fuse made me laugh too.
  • #19
    User removed account
    User removed account  
  • #20
    brofran
    Level 39  
    CMS wrote:
    this fuse made me laugh too.
    I am more "stuck" red large capacitor. :D
  • #21
    User removed account
    User removed account  
  • #22
    Jawi_P
    Level 35  
    almost identical meters could be bought in supermarkets. The record I saw is 9.99 PLN. The only thing that did not have the backlight.
    Currently, you can buy it in DIY stores, recently similar, probably after 16.99 or 19.99.
    Personally, I would see other things in the shop, not necessarily such a meter. Let there be something I can't buy from the shop around the corner.
  • #23
    vodiczka
    Level 43  
    kokapetyl wrote:
    But you will not correctly measure the current flowing in the circuit you are going to check it.
    OKAY. With serial connection of ammeters the result will be low, but by how many percent?
    CMS wrote:
    As you know, ammeters should not be connected in parallel or in series (and here you have a chance to prove yourself and write why). Therefore, the measurement is performed alternately on both multimeters. On the same test leads.
    If we only want to compare the indications of both meters, the serial connection is correct and even necessary when the current source and receiver are not stable.
  • #24
    User removed account
    User removed account  
  • #25
    vodiczka
    Level 43  
    nowyARM wrote:
    As for the measurement error with one ammeter and two in series, it depends on the shunt resistance.
    I know as much (and the rest) of what you wrote, but I was hoping that the opponents of serial connection of ammeters would estimate this error, because I do not undertake the task due to the heat. :)
    Let's take the simplest example - analog milliammeter without shunt, range 0-100mA. We have two such meters that measure without errors, i.e. measurement error = 0%. Both meters, connected to the circuit individually, measured 90 mA. What amperage will each meter show if we connect them in series? What error will cause serial connection of ammeters?
    Let us assume that the internal resistance of a milliammeter is 1 ?.
  • #26
    User removed account
    User removed account  
  • #27
    vodiczka
    Level 43  
    nowyARM wrote:
    Mostly microammeters are used ...
    A beautiful argument, but my friend still did not answer the question I asked - how much will the indication of the milliammeter decrease if we connect two identical milliammeters in series. Since they are identical, it does not matter whether they both have identical shunts or not.
    Deriving the formula is very simple.
    A colleague may give this formula or make calculations for the assumption I have made; Rw of the meter = 1?
    nowyARM wrote:
    The topic, however, is about digital meters
    Yes, but a colleague CMS he asked a general question about all types of ammeters
    CMS wrote:
    As you know, ammeters should not be connected either in parallel or in series (and here you have a chance to prove yourself and write why) .
  • #28
    CMS
    Administrator of HydePark
    vodiczka wrote:
    The topic is yes, but my colleague CMS asked a general question about all types of ammeters


    I will specify it, because although I have an analog multimeter and I use it occasionally, where digital (even with a bargraph) cannot do it, when I asked you this question, I meant only digital "meters". We also omit the issue of the wire used in the system and other nuances related to analog devices)
  • #29
    robokop
    Moderator of Cars
    Gentlemen, did any of you notice how the current in the circuit affects the connection of such a multimeter? I ignore the resistance of the wires and contacts themselves ...
  • #30
    vodiczka
    Level 43  
    robokop wrote:
    Gentlemen, did any of you notice how the current in the circuit affects the connection of such a multimeter?
    Of course I did. Since no one is eager to derive the formula, I will suggest: It affects the less the greater the difference between the circuit resistance Ro and the internal resistance of the connected ammeter Rw assuming that the source powering the circuit is rigid.
    For Ro = 1000 Rw, the change of the measured current is approx. 0.1%, for Ro = 100 Rw approx. 1%.
    CMS wrote:
    when I asked you this question, I meant only digital "meters".
    OK, but how the serial connection of ammeters affects the current measurement depends only on their internal resistances.
    It doesn't matter if one is digital and the other is analog or both are of the same type.