User manual

407790A-en-US_v2.0 8/16
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Timeweighting:
Main channel: Fast (125ms), Slow (1000ms), 10ms, Impulse (35ms)
Sub channel: Fast (125ms), Slow (1000ms), 10ms, Impulse (35ms)
Measurementlevelrange:
A‐weighting: 25 to 130dB
C‐weighting: 33 to 130dB
Z‐weighting: 38 to 130dB
Totalmeterrange: 25dB to 130dB (A‐weighting, 1kHz)
Linearoperatingrange: 90dB
LevelRange: 20 to 90dB, 20 to 100dB, 20 to 110dB, 30 to 120dB, 40 to 130dB
Samplingcycle: 20.8 µS (L
N
: 100ms)
Triggerfunction: Controls measurement and memory store start
Level1: Trigger level (1‐dB steps) serves as threshold for starting measurement
Level2: Single measurement is carried out when trigger level is exceeded
EXT: External trigger connector for logic‐level signal with falling edge detection
TIME: Trigger event recurrence interval (trigger time) is set.
Store: Sound level values and processing results are stored in manual store or auto store mode.
Data can be stored in internal memory or on micro SD card.
Manualstore: Data for measurement results and measurement start time are stored manually,
in single address increments.
Datastorecapacity: max. 250 data sets.
Autostore: Measurement results are stored continuously at the preset record interval time (for
Auto 1) or the preset measurement integrated time (for Auto 2), and the measurement
time.
Datastorecapacity: Memory capacity can be divided to 250 blocks max.
Memorycapacity: See Table below (Manual/Auto storage blocks are separate)
Storagetype
Mode
Flash SDcard
Sound level meter 25087 data sets 29992366 data sets
1/1‐octave analysis 16185 data sets 19944162 data sets
1/3‐octave analysis 9466 data sets 11942248 data sets
1/1 and 1/3 OCT mode 7839 data sets 9946834 data sets
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