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Environmental Conditions
The U1281A/U1282A is designed for indoor use and in an area with low condensation. The
table below shows the general environmental requirements for this instrument.
Environmental cond ition
Temperature
Humidity
Altitude
Pollution degree
Keysight U1281A/U1282A User's Guide
Requirement
Operating condition
– –20 °C to 55 °C, 0% to 80% RH (non-condensing)
Storage condition
– –40 °C to 70 °C, 0% to 80% RH (without batteries)
Full accuracy up to 80% RH (relative humidity) for
temperature up to 30 °C, decreasing linearly to 50%
RH at 55 °C
Up to 3000 meters
2
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