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TM
TM
Page <3>
V1.0
12/04/18
RANGE/(A/C) button
: Short press to switch range gear; Long press to switch unit.
Bluetooth button
: Long press to active or deactive Bluetooth.
HOLD/
button
: Short press to hold the current data; Long press to activate or deactivate backlight.
MAX/MIN button
: Press to record Maximum, Minimum
Note:
MAX/MIN button, range button and A/C button will be deactivated when hold the current readings and the instrument
will exit MAX/MIN recording function when switch range gear.
5. Display Layout
: Bluetooth symbol
: Low battery indicate
: Timing power off symbol
MAX
: Maximum hold
MIN
: Minimum hold
Two smaller digits at upper left of display
: Minimum range
Three smaller digits at upper right of display
: Maximum range
UNDER
: under range
OVER
: over range
dBA, dBC
: A-weighting, C-weighting.
AUTO
: Auto range selection
HOLD
: Data hold function
Four larger digits in middle of display
: Measurement data.
Measurement Operation
•
Turn on the instrument by pressing power on/off button.
•
Short press button “RANGE” and select suitable measurement range based on no “UNDER” or “OVER” display on LCD.
•
Select “dBA” for general noise sound level and “dBC” for measuring sound level of acoustic material.
•
Hold the instrument in hand or fix it on tripod, take measure at a distance of 1-1.5 meters between microphone and
source.
Data Hold
Press hold button to freeze the readings and “HOLD” symbol displays LCD. Press hold button again to return normal
measurement.
MAX/MIN reading
•
Press MAX/MIN button for the first time, the instrument will enter Max tracking mode, the tracked Max reading will display
on the LCD.
•
Press MAX/MIN button for the second time, the instrument will enter Min tracking mode, the tracked Min reading will
display on the LCD.
•
Press MAX/MIN button for the third time, the current reading will display on the LCD.
Bluetooth communication
Long press Bluetooth button to activate Bluetooth function, it communicates after connect with the software. The instrument
can transmit measured data and instrument status to software and the software can control the instrument.
The instrument will automatically turn off in order to lengthen the battery working life. When symbol appears on the LCD,
please replace the old battery with new ones.
•
Open the battery compartment with a suitable screwdriver.
•
Replace 9V battery.
•
Mount the battery compartment again.