Chapter 2 29
Agilent 4072/4073 Preinstallation Guide, Edition 4
Site Preparation
Environmental Considerations
Floor vibration
In addition to the conditions described in “Temperature and humidity”, Agilent Technologies recommends that the
following vibration conditions should be satisfied for measuring low-current and low-voltage with the 4073A/B:
Floor vibration: ≤ 1 mG
Floor vibration transmission frequency: ≥ 10 Hz
Air cleanliness
Your 4072/4073 tester must be located in an area where the air purity meets or exceeds class 100,000 standards.
Also, to ensure trouble-free disk and disk drive operation, system controller peripherals should be located in an
environment of similar air purity.
NOTE Agilent Technologies recommends that the following air cleanliness condition should be satisfied
for measuring low-current and low-voltage with the 4073A/B:
Air cleanliness:
< class 10,000
Air flow
To prevent the 4072/4073 tester from disturbing the air flow, it is recommended that your clean room use a down
flow mechanism. The 4072/4073 tester uses an air cooling method to cool down system components. The system
cabinet is equipped with three cooling fans to draw out the warm air. The cooling fans are located in the top of the
rear door as shown in Figure 2-12, and can pull out a maximum of 10 cubic meters per minute (approximately
35400 ft
3
/min.).
Figure 2-12 Air flow and fan location
air duct
side panel
rear door
air flow:
maximum 10 m /min
fan
3
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