Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X

• Siglent Bench DMMs SDM3065X, SDM3055 and SDM3045X
  Posted by tautech on 19 Sep, 2014 10:53
• 3 Siglent Bench DMM's:
  
  SDM3045X 4 1/2 digit (60,000 count)
  SDM3055   5 1/2 digit (240,000 count)
  SDM3065X 6 1/2 digit (2,200,000 count)
  
  4.3" colour LCD dual measurement display.
  (Changed GUI from FW 16R2)(SDM3055)
  
  
  The full family and specs:
  https://int.siglent.com/products/digital_multimeters/
  https://siglentna.com/digital-multimeters/
  
  SDM3065X Released April 2017
  SDM3045X New 60000 count 4 1/2 digit model in this series: (released Aug 2016)
  
  Teardown:
  https://www.eevblog.com/forum/blog/eevblog-829-siglent-sdm3055-bench-multimeter-teardown/
  
  FW & SW updates:
  https://int.siglent.com/download/firmwares/?CateIdss=5
  https://siglentna.com/service-and-support/firmware-software/digital-multimeters/
  
  
  Recently released option for 3055 and 3065 models in the SDM3*** family is a 16 ch scanner card but it's only for factory installation unfortunately. 
  
  
  
  
  6 1/2 Digit Benchtop DMM: SDM3065X
  
  
  
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg1016306/#msg1016306
  
  http://siglentamerica.com/prodcut-detailxx.aspx?id=4826&tid=37&T=2
  
  Siglent video:
  https://youtu.be/pijpdKbq_O4
  
  Deeper investigations:
  https://www.eevblog.com/forum/testgear/hacking-the-siglent-sdm3055/
  
  
  Early/first SDM3055 releases were as the image below then later versions had X series bumpers/horns added.
  The SDM3055 model name was unchanged and SDM3045X and 3065X were released later.
  
  POI List
  3DP Scanner card breakout from member pipe2null
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg3070270/#msg3070270
  Retrofitting SC/Scanner card discussion:
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg5020645/#msg5020645
  Adding custom temp sensors:
  https://siglentna.com/operating-tip/adding-customer-defined-temperature-sensors-dmm-sdm3000/
  SDM3045X Ranging issues and why:
  https://www.eevblog.com/forum/testgear/siglent-sdm3045x-enough-is-enough/
  
  User Cal
  Latest procedure:
  
  
  Previous......now outdated.
  Excellent webpage by Defpom for SDM User Cal CSV file creation:
  http://www.thedefpom.com/siglent_sdm_calibration.php
  
  Carefully follow his instructions and use appropriate quality references to build your own SDM Cal files to compensate for accuracy drift as these bench meters internal references age.
  Video above also linked on his webpage for guidance on how User Cal works.
  
  SDM3045X PCB pics:
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg1955995/#msg1955995
  SDM3055 PCB pics:
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg637615/#msg637615
  SDM3065X PCB pics:
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg1329966/#msg1329966
  Auto power up mod:
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg3503976/#msg3503976
  Size comparison:
  https://www.eevblog.com/forum/testgear/siglent-new-bench-dmm-sdm3055/msg3929207/#msg3929207
  
  SDM3045X independent review:
  http://lygte-info.dk/review/DMMSiglent%20SDM3045X%20UK.html
  
  
  Typical recovery procedure:
  
  
  Not mentioned is the need to place the unzipped recovery package into the root of the USB stick and said FAT32 stick must be not larger than 8GB and with 4k clusters.

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• #1 Reply
  Posted by Orange on 19 Sep, 2014 16:55
• I have my doubts about the photo, i think it is an very good animated picture straight from an CAD system, Why ?
  
  Look at the back side, and zoom in on the BNC connectors, it's missing a centerpin, Siglent is faking equipment pictures.
• #2 Reply
  Posted by Hydrawerk on 19 Sep, 2014 18:01
• It seems that this is their very first multimeter ever released. Then I do not want it. It has a color LCD, so it must be full of bugs.
  I would trust GW Instek multimeters instead. Yes, they make some so-so scopes, but they still work as promised. Almost.

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• #3 Reply
  Posted by Wytnucls on 19 Sep, 2014 20:08
• Looks like Applent is also getting on the bench DMM bandwagon. A lukewarm attempt with a 4 1/2 digit meter, using their LCR meter case and eye candy TFT touch screen. They left out the cap measurement, perhaps to avoid denting their LCR meter sales.
  
  http://www.applent.com/products/detail.aspx?familyid=&model=AT186
  
  
• #4 Reply
  Posted by tautech on 26 Sep, 2014 19:47
• The datasheet is now available for download from Siglent:
  http://www.siglent.com/DataSheet/EN/SDM3055_DataSheet_EN.pdf
  http://www.siglentamerica.com/USA_website_2014/Documents/DataSheet/SDM3055x_DataSheet_DS06035-E02B.pdf
• #5 Reply
  Posted by Wytnucls on 26 Sep, 2014 21:06
• Thanks, filled in the blanks on the bench meter spreadsheet. To be published soon.
• #6 Reply
  Posted by Siglent on 30 Sep, 2014 06:48
• siglent new official website has been on-line, for more information, please visit http://www.siglent.com/ENs/pdxx.aspx?id=176&T=2&tid=37
• #7 Reply
  Posted by EEVblog on 30 Sep, 2014 07:08
• Quote from: tautech on 26 Sep, 2014 19:47

  The datasheet is now available for download from Siglent:
  http://www.siglent.com/DataSheet/EN/SDM3055_DataSheet_EN.pdf
  

  
  Wow, looks like they completely ripped off the Agilent UI
• #8 Reply
  Posted by nctnico on 30 Sep, 2014 15:38
• Quote from: Siglent on 30 Sep, 2014 06:48

  siglent new official website has been on-line, for more information, please visit http://www.siglent.com/ENs/pdxx.aspx?id=176&T=2&tid=37
  

  The website looks completely wrong with Firefox version 32.
• #9 Reply
  Posted by smatjaz on 19 Mar, 2015 19:36
• Hello.
  I tested the operation of the instrument SDM3055- remote connection via LAN. An error has occurred when setting the LAN parameters. IP number is stored in order, Subnet mask is not saved. Each time the instrument is turned off and turned on, the Subnet mask setting is not saved.
  
  Is this a bug in the software?
  
  Greetings M.
• #10 Reply
  Posted by tautech on 19 Mar, 2015 19:45
• Welcome to the forum.
  
  Better you place this post in this thread:
  https://www.eevblog.com/forum/testgear/siglent-technical-support-join-in-eevblog/
  
  Siglent tech support will be online later today to help.
  
  Sorry I have only tried the EasyDMM software with USB and that works great.
• #11 Reply
  Posted by Siglent on 20 Mar, 2015 05:47
• Quote from: smatjaz on 19 Mar, 2015 19:36

  Hello.
  I tested the operation of the instrument SDM3055- remote connection via LAN. An error has occurred when setting the LAN parameters. IP number is stored in order, Subnet mask is not saved. Each time the instrument is turned off and turned on, the Subnet mask setting is not saved.
  
  Is this a bug in the software?
  
  Greetings M.
  

  this is a known problem, we have fixed in the coming firmware (11R2), but we will release it in about two weeks.
• #12 Reply
  Posted by zaoka on 22 Mar, 2015 05:31
• Quote from: Siglent on 20 Mar, 2015 05:47

  this is a known problem, we have fixed in the coming firmware (11R2), but we will release it in about two weeks.
  

  
  
  Is there a way to increase Diode voltage limit to 3.0V instead of 2.0V?
  
  
• #13 Reply
  Posted by zaoka on 22 Mar, 2015 05:36
• Also sampling time for DC, can you add 5 times per second as well?
• #14 Reply
  Posted by Siglent on 25 Mar, 2015 09:24
• Quote from: zaoka on 22 Mar, 2015 05:36

  Also sampling time for DC, can you add 5 times per second as well?
  

  Thanks for your suggestion. but can you explain why you need to add this feature?
• #15 Reply
  Posted by tautech on 26 Mar, 2015 09:44
• Quote from: EEVblog on 30 Sep, 2014 07:08

  Quote from: tautech on 26 Sep, 2014 19:47

  The datasheet is now available for download from Siglent:
  http://www.siglent.com/DataSheet/EN/SDM3055_DataSheet_EN.pdf
  

  
  Wow, looks like they completely ripped off the Agilent UI
  

  Been wondering for some time about that. 
  
  Inspired by this post a couple of weeks ago: https://www.eevblog.com/forum/testgear/keysight's-new-34465a-(6-5-digit)-and-34470a-(7-5-digit)-bench-multimeters/msg626032/#msg626032
  
  I thought I'd better take a deeper look just in case the Agilent was a rebrand. 
  SDM3055
  
  
  Wow I thought, they share the same Lattice chip, but no they are different beasts.
  White silkscreen indicates where the sheilding cover (left) resides, held by a single screw.
  Omron relays and just right a SIL Caddock resistor network.
  Note the gold guard traces.
  
  
  
  Mains transformer is sheilded from the main PCB and the PSU is a linear type, rectification and smoothing on the main PCB, TO-220 7805 regulator
  

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• #16 Reply
  Posted by DJ on 27 Mar, 2015 20:07
• I was on the fence between the SDM3055 and the Agilent 6.5/7.5 DMM's.
  
  Glad I did not jump the gun one way or the other. A good bench DMM is an essential piece of kit, whose readings must be beyond question. It forms a core of a lab.
  
  Other instruments may slide with less absolute accuracy. An AWG, for example. Typically not a reference instrument,  do I care if it wanders over time or is not absolutely accurate?  Probably not. I have other equipment which can verify amplitude and frequency accuracy.
  
  The instruments used to verify others should be 10x better.
  
  So I've chosen the Agilent 6.5 digit, probably the 34465.
  
  One the other hand, Siglent got the nod for the SDG5162.
  
  
  This might serve as basis for a video, " Where to spend money where it counts in your lab"
• #17 Reply
  Posted by zaoka on 28 Mar, 2015 02:19
• Quote from: Siglent on 25 Mar, 2015 09:24

  Quote from: zaoka on 22 Mar, 2015 05:36

  Also sampling time for DC, can you add 5 times per second as well?
  

  Thanks for your suggestion. but can you explain why you need to add this feature?
  

  
  When you use meter for troubleshooting and do pin-point measurements, probes are very sensitive if moved and meter captures those changes... reading changes fast...
  
  5 readings per second is the best for this...
  
  Keep in mind that not everybody uses meter for the same purpose.
• #18 Reply
  Posted by tautech on 28 Mar, 2015 06:30
• Quote from: zaoka on 28 Mar, 2015 02:19

  Quote from: Siglent on 25 Mar, 2015 09:24

  Quote from: zaoka on 22 Mar, 2015 05:36

  Also sampling time for DC, can you add 5 times per second as well?
  

  Thanks for your suggestion. but can you explain why you need to add this feature?
  

  
  When you use meter for troubleshooting and do pin-point measurements, probes are very sensitive if moved and meter captures those changes... reading changes fast...
  
  5 readings per second is the best for this...
  
  Keep in mind that not everybody uses meter for the same purpose.
  

  
  P 11 of the Manual describes the selection of measurement speeds. Three speeds are available.
  They are 5/sec, 50/sec and 150/sec. These options are available in: DCV, ACV, DCI, ACI and 2 & 4 wire resistance settings.
  When any of these measurement types are selected, the 2nd softkey (from left) named "Speed" allows selection of any of these 3 available measurement speeds.
  
  
• #19 Reply
  Posted by Muttley Snickers on 30 Mar, 2015 12:20
• Does anybody know what the available screen colours are?
  
  So far I've seen navy blue and black, dont want to clash with my yakka overalls, nothing in the manual about it except for testing the display.
  
• #20 Reply
  Posted by tautech on 30 Mar, 2015 19:49
• Oh Muttley, sorry about the overalls, they will have to go. 
  
  There is no other screen options available that I could find, the surrounds are Grey, display background Navy blue and numbers, bar graphs etc are Yellow, not the Orange as seen on images on Siglent sites. Banana Yellow is my best description of the colour.
  Other UI colours are white and light blue as seen on the website images
  
  The yellow is very easy to see at a glance(when probing) and from good distances if monitoring a measurement. I guess Siglent have changed the colour from their early documentation for visibility reasons.
  http://www.siglentamerica.com/pdxx.aspx?id=176&T=2&tid=37
  
  The second screen image from the bottom is the UI that one uses most often, except this one has the Dual measurement activated.
  
  Keep in mind this is a reasonably new product, there is more FW due very shortly (Siglent posted this is so) and options of more enhancements is up to us to identify them and lobby Siglent for changes or more features.
  
  Sorry Muttley, you'll just have to get a fashion consultant so you don't clash with your TE. 
• #21 Reply
  Posted by Muttley Snickers on 30 Mar, 2015 23:47
• Bugger tautech,
  
  I dont want to look like a dummy....
  

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• #22 Reply
  Posted by tautech on 31 Mar, 2015 01:17
• I have recently been asked now the SDM3055 might measure V & A simultaneously.
  It is accomplished in much the same way as other meters.
  
  This is a 3 wire measurement with Neg used for both measurements.
  For Volts connect leads across of course, and Amps in series.
  
  Select the primary measurement you are interested in. DCV
  Then select "Dual" and for SDM3055 then "Shift then DCI".
  
  Then the internal relay switches between the 2 measurement modes @ ~ 1 Hz.
  The readings are stable on the display, no switching or flickering just constant.
  
  The main display readout can be toggled with the "Dual" key to show the other Dual measurement as the main measurement, back and forth as you please.
  
• #23 Reply
  Posted by Wmacky on 31 Mar, 2015 04:09
• I wonder if this unit would be a big upgrade for someone using a Fluke 87V for bench work?
• #24 Reply
  Posted by tautech on 31 Mar, 2015 04:29
• Quote from: Wmacky on 31 Mar, 2015 04:09

  I wonder if this unit would be a big upgrade for someone using a Fluke 87V for bench work?
  

  
  Here's the link to the datasheet:
  http://www.siglentamerica.com/USA_website_2014/Documents/DataSheet/SDM3055x_DataSheet_DS06035-E02B.pdf
  
  Can I give you the comparison as a homework assignment? 
  
  Next up will a description of logging, trend plots etc., maybe later today.