Fuji Electric NRF51 User Manual page 34

(2) White backlight turns on by pressing any of "◎", "△" or "▽" button.
Display of accumulated dose (Sv or rem) and dose rate (Sv/h or rem/h) can be switched by p
ushing the button of "△" or "▽". "◎" button can also switch the display to other screens.
Please see section 6.2 in details for screen change methods by "◎" button.
(3) Put NRF51 in the chest pocket as shown below.
※Direction of NRF51:
As NRF51 is viewed from wearer, operation button and auxiliary LED must be positioned so that they are
in the right side from wearer's point of view, and buzzer faces outward.
Pocket
Human body
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