U1271A/U1272A User’s Guide 7
Environmental Conditions
This instrument is designed for indoor use and in an area with low
condensation. The table below shows the general environmental
requirements for this instrument.
Environmental conditions Requirements
Operating temperature Full accuracy from –20 °C to 55 °C
Operating humidity
Full accuracy up to 80% RH (relative
humidity) for temperature up to 30 °C,
decreasing linearly to 50% RH at 55 °C
Storage temperature –40 °C to 70 °C
Altitude Up to 2000 meters
Pollution degree Pollution degree II
The U1271A/U1272A Handheld Digital Multimeter complies with the following
safety and EMC requirements:
• EN/IEC 61010-1:2001
• ANSI/UL 61010-1:2004
• CAN/CSA-C22.2 No. 61010-1-04
• Commercial limits compliance with EN61326-1
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