Keysight U1251B Guia Del Usuario página 113

Setting Temperature Unit
Four combination displays are available:
– Celsius only (C on primary display) single display setting
– Celsius-Fahrenheit (d-CF) and Fahrenheit-Celsius (d-FC) dual display setting.
NOTE
Primary-Secondary Display can be swapped by pressing
– Fahrenheit only (F on primary display) single display setting.
Keysight U1251B and U1252B User's and Service Guide
Changing the Default Setting
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