Delta PG-35 User Manual download pdf (Page 22)

6-1

SOUND LEVEL CHARACTERISTICS

SM DELTAZ 1-E.0 GB

6. SOUND LEVEL CHARACTERISTICS

6.1 Sound Pressure Level

Figure 1. Wall Mounted Figure 2. Floor Mounted

Figure 3. Ducted Figure 4. Cassette

6.2 Sound Pressure Level Spectrum (Measured as Figure 1)

Delta 25 Delta 35

OCTAVE BAND CENTER FREQUENCIES, [Hz]

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

-70NC

-60NC

-50NC

-40NC

-30NC

-20NC

MICRO BAR0.002 dB re , OCTAVE BAND SOUND PRESSURE LEVEL

OCTAVE BAND CENTER FRQUENCIES, [Hz]