As an Amazon Associate & eBay Partner: we earn from qualifying purchases

Grok.com: "What is the best website for metal finishing questions and answers?"

"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."

Home /
T.O.C. Fun
FAQs Good
Books Ref.
Libr. Adver-
tise Help
Wanted Current
Q&A's Site 🔍
Search
finishing.com -- The Home Page of the Finishing Industry


  -----

Rectifier calibration




Q. Hi Folks,
Does anyone know of a standard to which electroplating and anodising rectifiers can be calibrated.
None of our customer specs so much as mention amps or volts in relation to the processes.
If we set any limits we would surely need some standard reference to back up our choice.
Thanks and Best regards
Mark Lees

Mark Lees
- A dull grey rock in the Irish Sea
October 25, 2023


A. Hi Mark. I don't exactly know of any such standards, but it would seem that the meters can be calibrated and certified.

Rectifiers always have a shunt which drives the ammeter, usually a 50 mV one (a drop of 50 mV across the shunt when the rectifier is operating at maximum nameplate capacity). So it should be possible to temporarily attach a known & certified ammeter across the shunt to compare to the meters on the rectifier.

Luck & Regards,

ted_yosem
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Ted is available for instant help
or longer-term assistance.


thumbs up sign Thanks Ted, as you say there are no industry specs that give actual calibration limits. We have always used a calibrated ammeter, but the question was asked, to what standard are the rectifiers held. So the can of worms is opened.
Given that the closest any of our specs come to mentioning plating electronics is to say that we use equipment capable of achieving the coating to the defined quality standard, then what ever we do can not be found to be non-conforming.
The only aspect that is perhaps specified is the test frequency, and that they stay within the rectifier manufacturers claims. So I guess we continue to comply with that.
Best regards
Mark

Mark Lees
- A dull, cloudy rock in the Irish sea
October 26, 2023




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Finishing
Jobshops Capital
Equipment Chemicals &
Consumables Consult'g,
& Software

About/Contact  -  Privacy Policy  -  ©1995-2025 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"