Instruction manual

Reading the Display

Current date and time

Shows the current date and time.

Touch panel lock

Indicates that the touch panel lock function has been set to ON. Touch panel

operations are disabled while this symbol is displayed (see page 51).

Key lock

Pressing the key and key simultaneously activates the key lock con-

dition and causes this symbol to appear. To cancel the condition, press

the

key and key once more together (see page 6).

USB/RS-232C connection

Indicates that the communication control function has been set to USB

or RS-232C (see page 56).

Battery status

When the unit is operated on battery power, you should regularly check

this indication. The number of white segments will decrease as the bat-

teries get used up. When the indication starts to ﬂash in red, replace the

batteries with a fresh set.

When the unit is being powered from an AC adapter or a battery pack,

the

symbol is shown.

Level display

Shows the measured sound level in the main channel. (The display is

updated every second.)

Frequency weighting

Indicates the main channel frequency weighting characteristic.

A: A-weighting, C: C-weighting, Z: Z-weighting (Flat response)

Batteries good Batteries getting low

Indication flashes

Replace batteries

White White White

Red