Metcal MX-500 Manuel D'utilisation page 5

®
METCAL SMARTHEAT
SYSTEM CALIBRATION FOR TEMPERATURE.
A Metcal System is comprised of a power supply with handle/cord assembly and a tip
cartridge. Each cartridge is equipped with a self-regulating heater, which senses its
own temperature and tightly maintains its pre-set idle temperature for the life of the
cartridge. The heater temperature is set by the atomic structure of the heater material.
It cannot be adjusted, and does not require any adjustment.
The power supply with handle/cord assembly does not contain the heater or any tip
temperature sensors, but simply provides the current to the heater. Any expected
variability or drift in the power supply over its life does not adversely affect its ability
to maintain the necessary current to the heater. There are no adjustments to be made.
The term calibration implies that because of inherent shift over time in a system,
periodic adjustment must be made to maintain performance. Calibration schedules
are normally based on anticipating when an out-of-tolerance condition will occur and
calibrating or adjusting prior to this event. In a Metcal System, there is nothing to
adjust, so the system cannot be changed from its initial state. Therefore, NO
CALIBRATION is required. Metcal tip cartridges control temperature inherently by
the physical properties of their materials to dynamically respond to loads.
Those companies or individuals requiring periodic verification of system performance
may do so in the following ways:
• Measure the performance of the system in 'time required to solder a defined
number of loads', or
• Measure tip idle temperature as it equates to this performance, or
• Observe start up and idle power with a Metcal Net Power Meter.
Call Metcal Technical Support (800-776-1778 or 650-325-5932) with any questions. In
addition, a signed letter of "no calibration required" is also available.
NO CALIBRATION REQUIRED
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SOLDERING, DESOLDERING, AND REWORK SYSTEMS DO NOT REQUIRE
Copyright © 1998, Metcal, Inc. All Rights Reserved 7027-0400 Rev A
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