Previous in Forum: Light   Next in Forum: Jumping out?
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
6 comments
Rate Comments: Nested
Labyguy
Guru
Engineering Fields - Manufacturing Engineering - New Member Hobbies - Target Shooting - New Member United States - Member - New Member Hobbies - Hunting - New Member

Join Date: Dec 2006
Location: Charlotte, NC USA
Posts: 791
Good Answers: 17

Testing of a Gage

01/30/2008 11:15 AM

We have a new supplier of fuel gages, hour meters, volt meters, and so on for our products, (and outdoor exposed tractor) and during testing the gages failed in that rust appeared and condensation inside the gage. This was just before we were to take delivery of our first shipment for PPAP. Very disappointing.

We now are asking the supplier to identify the root cause and tell us the fix they are going to put in place.

My question is, does anyone know of a standard spec we should be asking them to adhere to? We know about the salt spray test and have asked them to provide 250 hours, they offered 50 hours. Any other spec we can quote that will assure us we don't see condensation in the face of the gages?

Thanks

Laby

__________________
 Be careful of what you wish for .....
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
3
Electroman
Guru
United Kingdom - Member - Olde Member!! Engineering Fields - Instrumentation Engineering - New Member

Join Date: Jul 2006
Location: Dunstable, England
Posts: 2821
Good Answers: 45
#1

Re: Testing of a Gage

01/30/2008 11:28 AM

Yes, there is a standard test for hermeticity of sealed gauges for the military.

You probably wont need the full testing but it basically invovles putting the meters in a bath of warm water for a few hours and then putting them in a cold refrigerator to show up any ingress of moisture on the meter face as condensation...

It shouldn't cost that much extra to perform as a whole batch can be tested in one go... and the operator only has to check that the meter glass is clear of condensation...

John.

__________________
 A little knowledge is a dangerous thing - Googling is far worse!
Register to Reply Good Answer (Score 3)
No more Good Answers. Go to first "Almost" Good Answer
Labyguy
Guru
Engineering Fields - Manufacturing Engineering - New Member Hobbies - Target Shooting - New Member United States - Member - New Member Hobbies - Hunting - New Member

Join Date: Dec 2006
Location: Charlotte, NC USA
Posts: 791
Good Answers: 17
#2
In reply to #1

Re: Testing of a Gage

01/30/2008 12:11 PM

John,

Thanks, we will try that test, by the way, can you remember that Mil spec number?

Frank

I didn't know you could vote for your own answer...

__________________
 Be careful of what you wish for .....
Register to Reply
Labyguy
Guru
Engineering Fields - Manufacturing Engineering - New Member Hobbies - Target Shooting - New Member United States - Member - New Member Hobbies - Hunting - New Member

Join Date: Dec 2006
Location: Charlotte, NC USA
Posts: 791
Good Answers: 17
#3
In reply to #2

Re: Testing of a Gage

01/30/2008 2:03 PM

I found it:

It's MIL-STD-202G

Thanks

__________________
 Be careful of what you wish for .....
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
Electroman
Guru
United Kingdom - Member - Olde Member!! Engineering Fields - Instrumentation Engineering - New Member

Join Date: Jul 2006
Location: Dunstable, England
Posts: 2821
Good Answers: 45
#4
In reply to #3

Re: Testing of a Gage

01/30/2008 2:42 PM

Ahh that's good, I had forgotten the Mil spec number...

I don't think you can vote for your own posts...

John.

__________________
 A little knowledge is a dangerous thing - Googling is far worse!
Register to Reply
user-deleted-1105
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16512
Good Answers: 670
#5
In reply to #4

Re: Testing of a Gage

01/30/2008 5:44 PM

People can sneak up and vote with out posting their own comment though... like I've just done...but damn..I've gone and commented now...

Oh I've confused myself now...must go and hide in my secret cat nest for a while...

__________________
 health warning: These posts may contain traces of nut.
Register to Reply Off Topic (Score 5)
jarunmagnet
Commentator

Join Date: Dec 2006
Location: india
Posts: 63
#6

Re: Testing of a Gage

12/22/2022 12:00 AM

Yes there are test for these gages testing.

but all test are not possible on each and every instrument as general practice is-----

testing of all gages of its visual , electrical and deflection test. only some or periodic batch sample are tested with humidity, water, heat, vibration,shock etc test.

of course quality and calibration standard are mentioned.

As I am working with some supplier as well as with some user.

One off the auto-cluster test rig manufacturer. India MH Pune

ADMIN: Deleted Content

From the Rules: Do not post personal contact information on the forum space. You can share this information via the forum's internal messaging system.

Register to Reply
Register to Reply
Have a Different Question?
6 comments

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
Copy to Clipboard

Users who posted comments:

Electroman (2); jarunmagnet (1); Labyguy (2); user-deleted-1105 (1)

Previous in Forum: Light   Next in Forum: Jumping out?

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
General Discussion:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (80 right now)
Show Members
Advertisement