How To Operate; Battery; Microphone; Output Connections - CESVA SC-20c Manual Del Usuario

3. HOW TO OPERATE

3.1 Battery

The SC-20c sound level meter is fed by a 6LF22-type alkaline or lithium battery or by direct
current. For DC supply use the
should only be connected to the SC-20c through the A-100 converter.
The battery is placed in the back of the SC-20c and is protected by a top. The battery must
be replaced when the warning "LO BAT" appears on the display.

3.2 Microphone

Check that the microphone is perfectly screwed by using only the force of your fingers,
without tools.

3.3 Output connections

The outputs must be connected before the SC-20c is switched on. All are found on
connector 5 (Output).
Selector 10 selects the type of digital output. If the digital output is not used, selector 10
should be turned to the position Off.

3.4 Beginning of a measurement

Turn switch 4 to the On position to turn the SC-20c on. "SC-20c" appears on the display and
after this the measurement starts; "run" and the value of the selected function appear on the
display.

3.5 Function and frequency weighting selection

Selectors 7 and 8 select the function that appears on the SC-20c's display, printouts and DC
output. Selector 6 selects the frequency weighting. The maximum value of the selected
function is displayed pressing the button Maximum.
If the selection of the selectors 6, 7 or 8 is changed while the SC-20c is measuring, a new
measurement begins and the data of the measurement in course get lost. To be able to
consult the other functions the measurement must be ended

3.6 End of a measurement

The button Stop ends the measurement. The display then blinks and the other functions can
be consulted using the selector 7, 8 and the button Maximum without the information being
lost.
When Run is pressed a new measurement begins and the results of the previous
measurement are lost.
A-200 model mains feeder. A "12 V" car battery
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