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User's Manual
UTE310 Digital Power Meter
150
°
�� = 40 ∗ {0.1% + 0.05% ∗
+ tan 60
∗ 0.1% }
80
= 40 ∗ 0.1 + 0.05 ∗ 1.875 + 3 ∗ 0.1 %
= 40 ∗ 0.367%
= 0.1468W, remain two decimal places for 0.15W
So the power between 39.85W～40.15W are within the error allowable range.
UNI-TREND TECHNOLOGY (CHINA) CO., LTD.
No.6, Industrial North 1st Road, Songshan Lake Park, Dongguan City, Guangdong Province, China
Postal Code: 523 808
www.uni-trend.com
Instruments.uni-trend.com
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