Rion NL-42A, Instruction Manual, Page: 23 / 154

5
Controls and Functions
Front view
Microphone/Preamplifi er
The microphone/preamplifi er unit can be detached from the main unit and
connected via an optional extension cable. This allows use at a separate location.
Be sure to use only the microphone/preamplifi er assembly with the number
as shown on the name plate of the unit. Otherwise the product no longer
conforms to specifi cations.
Before using the unit and before putting it away, always check that the microphone
and microphone grid has not become loose. If this has happened, refasten the
microphone grid fi rmly and then use or store the unit.
Display
The display of the unit is a backlit LCD panel. It shows the measured sound
level as a numeric indication and as a bar graph. It also indicates the operation
status of the unit and shows measurement parameters as well as warning
indications and other information.
Microphone/
Preamplifier
Display
Operation key panel
Microphone
Preamplifier
Microphone grid