Environmental Conditions - Fluke 4181 User Manual

4180, 4181 Precision Infrared Calibrator

Environmental Conditions

2.2 Environmental Conditions
Although the instrument has been designed for optimum durability and trouble-free
operation, it must be handled with care. The instrument should not be operated in an
excessively dusty or dirty environment. Maintenance and cleaning recommendations
can be found in the Maintenance section of this manual.
The instrument operates safely under the following conditions:
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ambient temperature range: 5-35°C (41-95°F)
ambient relative humidity: maximum 80% for temperature <31°C, decreasing
linearly to 50% at 40°C
mains voltage within ±10% of nominal
vibrations in the calibration environment should be minimized
altitudes less than 2,000 meters
indoor use only