Sper Scientific 850069 Environmental Quality Meter w/Sound - Manual (Page 14)

- 14 -
MEASUREMENT PROCEDURES
Sound-Level Measurement
1. Ensure that the sound sensor at the top
of the meter is free from obstruction.
2. Hold the meter with the sound sensor
pointing toward the noise source and
press POWER to turn the meter on.
3. Press FUNCTION continuously until
the meter displays the dB sound-level
measuring unit.
4. The meter measures the sound level of
the surrounding noise and displays the
value in decibels.
Light-Level Measurement
1. Press POWER to turn the meter on.
2. Press FUNCTION until the meter
displays the Lux or Ft-cd light-level
measuring unit.