Come enter the BrewHardware Giveaway!


Home Brew Forums > Home Brewing Beer > Electric Brewing > Continuity test question...
Reply
 
LinkBack Thread Tools
Old 04-24-2012, 06:14 AM   #1
Dgonza9
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2010
Location: Evanston, Illinois
Posts: 1,183
Liked 10 Times on 10 Posts

Default Continuity test question...

I finished wiring up my panel tonight. I decided to do a continuity test to check that everything was grounded. I have a stainless steel panel that I painted.

What I found was that the inside of the panel read zero when I touched it and the ground bus bar. However, when I touched the ground bus and the outside of the panel it gave me the infinite resistance sign.

The only thing I can think of is that the paint is acting as an insulator of some kind. Or is there something else going on? Is this a problem?



Thanks.

__________________
On Tap: Belgian Barrel Aged Barleywine, Da Yooper's Oatmeal Stout, Breakfast Stout, Hop Your Face Off IIPA, Catcher in the Rye Saison, "Wino-head" Nelsin Sauvin Gumballhead.

Bourbon Barrel Duchesse De Bourgnone
Kegged:

Fermenting English Mild

on Deck: Lager?
Dgonza9 is offline
 
Reply With Quote Quick reply to this message
Old 04-24-2012, 06:22 AM   #2
Dan
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
Dan's Avatar
Recipes 
 
Join Date: Oct 2010
Location: Makakilo, Hawaii
Posts: 6,455
Liked 2001 Times on 1239 Posts
Likes Given: 2854

Default

The paint will act as an insulator.

__________________
Dan is offline
 
Reply With Quote Quick reply to this message
Old 04-24-2012, 06:31 AM   #3
petey_c
Senior Member
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
petey_c's Avatar
Recipes 
 
Join Date: Jun 2010
Location: Miller Place, NY (Long Island)
Posts: 1,135
Liked 44 Times on 42 Posts
Likes Given: 1

Default

What Dan says. Take the tip of your meter lead and scratch through the paint (in a spot where it won't be seen easily) and retest to verify.

__________________
petey_c is offline
 
Reply With Quote Quick reply to this message
Old 04-24-2012, 12:52 PM   #4
BeerguyNC61
Senior Member
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2012
Location: Annapolis, MD
Posts: 543
Liked 65 Times on 49 Posts
Likes Given: 10

Default

Yes the paint is preventing the meter probe from contact with the metal. Just a scrape into the paint until metal is seen will make the contact.
Or Yea what he said......

__________________
BeerguyNC61 is offline
 
Reply With Quote Quick reply to this message
Old 04-24-2012, 01:02 PM   #5
mattd2
Feedback Score: 0 reviews
Recipes 
 
Join Date: Sep 2009
Location: Papamoa, New Zealand
Posts: 3,581
Liked 269 Times on 214 Posts
Likes Given: 46

Default

Why bother testing the outside for continuity? If the unpaint inside is grounded the "outside" is grounded since it is the same piece of metal... or am I missing something here?

mattd2 is offline
 
Reply With Quote Quick reply to this message
Old 04-24-2012, 02:10 PM   #6
Bobby_M
Vendor and Brewer
HBT_SPONSOR.png
Vendor Ads 
Feedback Score: 3 reviews
 
Bobby_M's Avatar
Recipes 
 
Join Date: Aug 2006
Location: Whitehouse Station, NJ
Posts: 22,356
Liked 1106 Times on 733 Posts
Likes Given: 28

Default

Right, I wouldn't expect to read ground through paint. Just open the panel and touch the lid from the back. If it has ground, good enough.

__________________
BrewHardware.com has a new website. Please check it out and let me know what you think!
New 100% Stainless Steel Heating Elements are IN!
Chugger Pumps, Pump Kits, Camlocks, Sightglasses, Clear USA made Silicone Tubing, RIMS, Electric Install Parts, etc. Did you know we are also now a full service homebrew shop selling malt, hops, yeast (Wyeast), etc?
Bobby_M is offline
 
Reply With Quote Quick reply to this message
Old 04-25-2012, 02:05 AM   #7
Dgonza9
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2010
Location: Evanston, Illinois
Posts: 1,183
Liked 10 Times on 10 Posts

Default

Quote:
Originally Posted by Bobby_M View Post
Right, I wouldn't expect to read ground through paint. Just open the panel and touch the lid from the back. If it has ground, good enough.
It does have a ground from the inside, so I'm good.

I connected the ground to the door of the panel, though. So I wanted to be certain the entire panel was grounded and not just the door. I couldn't tell if the hinge had a plastic piece in the center or something.

Just wanted to be sure. Thanks.
__________________
On Tap: Belgian Barrel Aged Barleywine, Da Yooper's Oatmeal Stout, Breakfast Stout, Hop Your Face Off IIPA, Catcher in the Rye Saison, "Wino-head" Nelsin Sauvin Gumballhead.

Bourbon Barrel Duchesse De Bourgnone
Kegged:

Fermenting English Mild

on Deck: Lager?
Dgonza9 is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Voltage test on PID/SSR Psych Electric Brewing 5 01-21-2013 07:05 PM
Beta test complete, need some help. mavrick1903 Electric Brewing 1 09-24-2011 12:45 PM
Initial boil test was a success! GRHunter Electric Brewing 5 06-12-2011 03:37 PM
Automated immersion test bzomerlei Electric Brewing 6 11-01-2010 02:16 PM



Newest Threads

LATEST SPONSOR DEALS