SL130-EU-EN v3.6 08/13
5
Range Selection
Slide the Range switch to the 30-80, 60-110 or the 80-130 position. The selected
range will be indicated on the LCD bar graph. If the measured dB level exceeds
the range selected “OL” will be displayed. If the measured dB level is below the
selected range
“- - -
“ will be displayed.
Normally, select the range in which the upper dB level is greater than any expected sound
pressure level. The 60 to 110dB range is the most commonly used range. Use the 30 to
80dB range in quieter areas such as offices and classrooms.
Note: When the range is changed the Max display may indicate an overload “OL”. Press
the MAX RESET button to clear the MAX display.
High Limit Set
Press the up or down LIMIT arrow buttons to set the High/Low limit set=point
as displayed on the LCD. If the measured dB level exceeds the set limit, the
OVER indication will appear in the display and the over limit signal will appear
at the alarm output connector. The display indication and output signal will
remain active as long as the sound pressure level exceeds the set limit.
High/Low LED Alert
The four LEDs are used to alert users when a sound level either exceeds or goes below the Limit
set-point. This feature is available only while the AC adaptor is used to power the meter. It is
disabled under battery power.
The LEDs will provide a steady or flashing colored indication depending on the setting of the side
panel ALARM and Alert switch settings.
The three Alert switch positions are: (1) RED, (2) RED-GREEN, (3) GREEN
Alarm
Switch
Alert Switch
LED response
Red (1)
LED’s flash red while dB level exceeds set point.
Red-Green (2)
LED’s flash red while dB level exceeds set point.
40 second green indication when level transitions from high
to low.
High
ALARM
Green (3)
40 second green indication when level transitions from high
to low.
Green (3)
LED’s are green while dB level is below set point.
Red-Green (2)
LED’s are green while dB level is below set point.
40 second flashing red indication when level transitions from
low to high.
Low ALARM
Red (3)
40 second flashing red indication when level transitions from
low to high.
