Fuji Electric NRF51 - Operational Instructions; Starting Up the NRF51

TN5A4215b 33/58
6. Operational Instruction
6.1 When starting to use
(1) Press and hold “◎” button for more than 3 seconds to start the NRF51.
Confirm the power is ON (Backlight, Vibrator and LED check, one time short beep sound) and LCD
displays an initial screen.
Check items
Confirmation method
Audible signal (1 beep)
Short beep sound is generated when dosimeter is turned on.
Indicated dose value
0 uSv or 0 uSv/h (Accumulated dose may not be 0 uSv if the power-on-reset
setting of NRF51 is “OFF”.)
LCD
〔Normal display〕
When accumulated dose is 0 uSv
〔Example of abnormal display〕
When generating alarm for low battery
In case NRF51 is left without battery for more
than 12 hours
DATE SETUP & TIME SETUP
Normal condition