User manual

4180, 4181 Precision Infrared Calibrator

Environmental Conditions

Environmental Conditions2.2

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:

ambient temperature range: 5-35°C (41-95°F)

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ambient relative humidity: maximum 80% for temperature <31°C, decreasing

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linearly to 50% at 40°C

mains voltage within ±10% of nominal

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vibrations in the calibration environment should be minimized

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altitudes less than 2,000 meters

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indoor use only

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