Denso BHT-1260BWB-CE User Manual page 187

[2] Beeper Scale Test
Tap the "2:BEEPER" button in the HardTest menu to perform the beeper
scale test. The screen shown on the right is displayed, and the beeper
sounds two octave major scales shown as below.
The BHT automatically returns to the HardTest menu after two octave
major scales are played.
Scale
1046
do
re 1174
mi 1318
fa 1396
sol 1567
la 1760
ti 1975
[3] Aging Test
Tap the "3:AGING" button in the HardTest menu to perform the aging test.
The current date and time are displayed during the aging test.
(This test is intended for pre-shipment inspection at the factory)
 Note 
The automatic power-off function is disabled during the
aging test.
[4] Communication Test
Tap the "4:COM" button in the HardTest menu to perform the
communication test for the USB interface port.
1:USB: Performs the USB interface test.
Barcode Handy Terminal/2D code Handy Terminal
Frequency (Hz)
2093 4186

2349

2637

2793

3135

3520

3951
Hand Held Terminal
Barcode Handy Terminal
175