Denso BHT-400B-CE - Manual (Page 121)

Chapter 2 Getting Started the BHT and System Menu
[4.2] Beeper scale test
Selecting "2:BEEPER" on the Hard Test menu calls up the screen
shown at left and sounds the beeper at three octaves listed below.
Upon completion of this test, the BHT automatically returns to the
Hard Test menu.
Scale Frequency (Hz)
do 523 1046 2093 4186
re 587 1174 2349 -
mi 659 1318 2637 -
fa 698 1396 2793 -
sol 783 1567 3135 -
la 880 1760 3520 -
ti 987 1975 3951 -
[4.3] Aging test
Selecting "3:AGING" on the Hard Test menu proceeds to the aging
test while showing the current date and time on the LCD. (This test is
intended for personnel who check the BHT in the factory.)
Once this test is selected, the automatic powering-off function
becomes disabled.
101