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Environmental Conditions
C A U T I O N
U1253A User's and Service Guide
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
Operating temperature
Operating humidity
Storage temperature
Altitude
Pollution degree
The U1253A True RMS OLED Multimeter complies with the following
safety and EMC requirements.
• IEC 61010-1:2001/EN61010-1:2001 (2nd Edition)
• Canada: CAN/CSA-C22.2 No. 61010-1-04
• USA: ANSI/UL 61010-1:2004
• IEC61326-1:2005 / EN61326-1:2006
• Canada: ICES-001:2004
• Australia/New Zealand: AS/NZS CISPR11:2004
Requirements
Full accuracy from –20 °C to 55 °C
Full accuracy up to 80% R.H. (relative
humidity) for temperature up to 35 °C,
decreasing linearly to 50% R.H. at 55 °C
–40 °C to 70 °C (with battery removed)
Up to 2000 m
Pollution Degree 2
VII
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