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June 2002

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Subject:
From:
"Barr, Bob" <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Thu, 20 Jun 2002 15:33:42 -0400
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Is the temperature variation only on the high side, or is the range actually
520-680 for a 600 degree tip? Also, how is the temperature measured? It is
my understanding that unless a thermocouple is embedded into the tip,
temperature measurements are not very accurate due to air currents, the
quality of the contact between tip and measurement device, etc.

=========================
Bob Barr
Manufacturing Engineering
Formation, Inc.
Voice: 856-234-5020 x3035
Fax: 856-234-6679
=========================

-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Thursday, June 20, 2002 1:57 PM
To: [log in to unmask]
Subject: Re: [TN] Metcal SP200 soldering Iron


In a message dated 6/18/2002 4:06:29 PM US Eastern Standard Time,
[log in to unmask] writes:

<< My only gripe with the Metcals is the cost of tips vs. their
 life expectancy. >>

I also have a problem with their temp control.  They have quite a wide range
for each cartridge.  Five tips of identical part number may range as much as
80 degrees, and Metcal will acknowledge that as within their acceptance
criteria.  So when you plug in a "600 degree" tip, you might get anything
between 600-680 degrees, with no way of telling one from the next.

Jon Moore

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