Instruction manual

44
Sound Pressure Level Measurement
4. Use the TIME CONST key to select the desired time constant setting.
Normally, the "FAST" setting should be used.
5. Use the LEVEL UP/DOWN keys to select the level range. Choose a setting in which
the "OVER" and "UNDER" indications do not appear (the bar graph should register
to about the middle of the range).
6. The level reading shown on the display corresponds to the current noise level (sound
pressure level). The reading is updated once every second.
The PAUSE/CONT key can be used to pause the measurement, i.e. to prevent the
level reading and bar graph indication from being updated. Pressing the key again
resumes the measurement.
Using the sub channel
To use the sub channel, carry out the following steps.
1. Press the DISPLAY key.
The DISPLAY menu screen appears.
2. Use the and keys to move the flashing cursor to the "SUB DISP" item.