Products > Test Equipment
New Siglent SDS1104X calibrated date 17 months old - Is this acceptable?
TomKatt:
--- Quote from: bdunham7 on February 23, 2023, 06:13:36 pm ---That all may be true if you using feelings, brand prejudice or tradition instead of logic (which is very common, of course). If the SDS1000X-E is appropriate for your purpose but your ISO9000 or whatever requirements specify that the test instrument must have an unexpired calibration certificate, then logical thing to do is to just get the certificate for it at the lowest possible cost. Having one included with the instrument is a good start. There's often absolutely no connection between the relative capabilities of an instrument and the need for a calibration certificate. I have seen very old and pretty low-end stuff that has been calibrated annually for a long time, probably at an aggregate cost higher than the price of a new instrument.
--- End quote ---
Again, all true. And provided you only need to perform your certificate required tests within 180 days or so of purchasing the scope and won't be required to perform additional testing of any kind, certainly the SDS1000X would be among the most cost effective solutions. Though I suspect if that were the case you could probably just pay someone else to do the work for less than the SDS1000X purchase price.
I have an SDS1104X-E (hacked into an SDS1204X-E) and it's proved to be an excellent and reliable tool on my bench. I still have an old HP 180A CRO from 1970 that continues to be useful as well, but the SDS1104X-E has demonstrated to me advantages provided by modern technology that I never fully appreciated prior. So, I'm not knocking it by any stretch - I just don't think that the certification it came with holds much value, primarily because it seems unlikely to get it renewed.
Edit - As for continuing to pay for recertification of old gear, at least something like a Tek offers that option. You'd probably have to hunt pretty hard to find a company to certify the SDS1000X series.
bdunham7:
--- Quote from: TomKatt on February 23, 2023, 06:25:15 pm ---I just don't think that the certification it came with holds much value
--- End quote ---
That's because you aren't working in a situation that requires all of your equipment to be covered by a traceable calibration certificate!
--- Quote ---Edit - As for continuing to pay for recertification of old gear, at least something like a Tek offers that option. You'd probably have to hunt pretty hard to find a company to certify the SDS1000X series.
--- End quote ---
No, there's plenty of independent calibration labs that will happily take your money to issue a new certificate. They'll use an oscilloscope calibrator or similar equipment to verify that it meets all of its specs and put a sticker on it. And AFAIK, Siglent will do the same if you send it back to their facility in Ohio. A company near me, BK Precision, sells a lot of rebadged and OEMed equipment--including Siglent scopes--and one of the things that keeps them in business is that they offer calibration services for their products.
argile_tile:
"pro rated". usually the term used when haggling for a rebate for a battery fails before it's warrantee.
does the manual SAY good from mfg date or good from time of purchase? i bet it doesn't say.
the chinese aren't going to help you and they're in china. the seller you'd have to "negotiate with" through amazon.
Look at your terms of sale. Did they say the unit was not NOS (new old stock) ? It is your responsibility to know.
like others i would say: do nothing unless your job requires you to do something
tautech:
--- Quote from: argile_tile on February 24, 2023, 08:10:15 am ---does the manual SAY good from mfg date or good from time of purchase? i bet it doesn't say.
the chinese aren't going to help you and they're in china. the seller you'd have to "negotiate with" through amazon.
--- End quote ---
::)
FYI, Siglent's largest wholly owned subsidiary is in Ohio whom supply their Amazon shop.
On their website is this, you should really have read it before mouthing off:
https://siglentna.com/service-and-support/warranty-information/
The official US position on Cal certs is here:
https://siglentna.com/service-and-support/calibration-certificate/
For those that wish to pick up bargains they can sometimes be found in the US clearance center:
https://siglentna.com/products/clearance/
TomKatt:
I'm going to bookmark that clearance sale link 8)
Edit - Also, although I had perceived certification of an SDS1000X-E class scope difficult to renew (making the certification somewhat moot), I had forgotten that Siglent has a rather substantial presence in the US for support.
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