Richard, do you try to dethrone the King of Pun, Dewittimus Wittakerix ?
Inge
----- Original Message -----
From: "Stadem, Richard D." <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, September 21, 2006 8:54 PM
Subject: Re: [TN] Solderin irons
Juan,
I have a tip (heh, heh, couldn't RESIST that). Have your operators clean the
point at which the tip makes contact with the heating mechanism. Carbon
builds up there, and you then have a resistance. The resistance is what
causes the voltage buildup on the tip (and also a drop in temperature).
Every day, the operator should break out the tip, clean it, and replace it.
Once cleaned, you will measure less than 1 ohm between the tip and the
ground plug on the cord. If you get the resistance to less than 1 ohm, the
voltage at the tip should not be measurable for most solder irons. And yes,
even the Metcal-type solder pencils have this problem.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Hfjord
Sent: Thursday, September 21, 2006 1:20 PM
To: [log in to unmask]
Subject: Re: [TN] Solderin irons
Buenas tardes, Juan,
Libros en el estante, guitarra en el rincon, hacen ningun son. Likewise, a
soldering iron tip should be absolutely silent, electrically spoken. We
would NEVER accept 2 Volts! If correctly connected to ground, the DC ought
to be zero Volts, and the noise something like your 2 mV RMS. I don't know
what the maximum ac level is, but 100 mV seems to be acceptable. When you
near 300 mV, some gates could change state, which is not accepable.
que estrecha su mano
Ingemar Hernefjord
SMS
----- Original Message -----
From: "Juan T. Marugán" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, September 21, 2006 3:20 PM
Subject: [TN] Solderin irons
Buenos días,
Appendix A, # f of J-STD-001C said "Tip transient voltages generated by
soldering equipment should not exceed 2V peak". My question is: How do you
verify this?
We have a soldering iron tester that met the old MIL-STD-2000A requirements.
That is, we can measure the tip to ground voltage (2 mV RMS
max.)
Thank you in advance.
Juan T. Marugan
Indra Sistemas SA
Spain
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