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User manual

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3-2 Basic Source-Measure Operation 2400 Series SourceMeter
®
User’s Manual
WARNING - CAUTION
The SourceMeter uses a heat sink to dissipate heat. Also, the Models 2410, 2420,
2430, and 2440 have a cooling fan. The left side of the case is cut out to expose
the black, finned heat sink. This heat sink gets hot and could be hot enough to
cause burns. Even if the instrument is turned off, you should assume that the heat
sink is still hot as it takes considerable time for it to cool off.
WARNING When handling the SourceMeter, NEVER touch the heat sink
located on the left side of the case. This heat sink could be hot
enough to cause burns.
NOTE See Section 1, “Cooling fan,” for operation details on the cooling fan.
Excessive heat could damage the SourceMeter and at the very least, degrade its
performance. The SourceMeter must be operated in an environment where the
ambient temperature does not exceed 50°C.
CAUTION To prevent damaging heat build-up, and thus ensure specified
performance, adhere to the following precautions:
• Keep the heat sink free of dust, dirt, and contaminates, since its
ability to dissipate heat could become impaired.
• Keep the bottom cooling vents from becoming blocked. NEVER
remove the plastic feet and place the SourceMeter directly on a
flat surface. NEVER operate the SourceMeter when it is sitting
on a conformable surface (such as a carpet). This could block
the bottom cooling vents.
• Do not position any devices adjacent to the SourceMeter that
force air (heated or unheated) into or onto its surfaces or cool
-
ing vents. This additional airflow could compromise accuracy
performance.
• When rack mounting the SourceMeter, make sure there is ade-
quate airflow around the bottom and sides to ensure proper
cooling. Adequate airflow enables air temperatures within
approximately one inch of the SourceMeter surfaces to remain
within specified limits under all operating conditions.
• Rack mounting high power dissipation equipment adjacent to
the SourceMeter could cause excessive heating to occur. The
specified ambient temperatures must be maintained around the
surfaces of the SourceMeter to specified accuracies.