Communications Ports; Measurements; Types; Ranges - 3M SP-SE-2-1/1 User Manual

131
Appendix A

Communications ports

Auxiliary - For trigger signals and RS-232 communication.
USB - Mini USB connector. This port is used for data and file transfers
between the instrument and a personal computer.

Measurements

Types

SPL measures - SPL, Average value (L
Minimum value (L
Noise dosimetry - Sound Exposure Level (SEL), Time Weighted Average
(TWA), Projected TWA (PTWA), Taktmaximal (TAKTMX), Dose, Projected
Dose (PDSE), Exposure (EXP).
Community noise dosimetry - Exceedance (L
Community Noise Exposure Level (CNEL), SPL difference for "C" and "A"
time response settings (L
Overload Time (OL) - The percentage of time over the OL setting.

Ranges

Broadband - Eight selectable ranges of 90 dB each.
Filtered - Eight selectable ranges of 80 dB each.

Measurement parameters

Response time - Fast, slow and impulse.
Frequency weighting - A, C, Z and F (flat).
Threshold - 10 to 140 dB or OFF.
Exchange Rate (ER) - 3, 4, 5 and 6 dB.
Criterion Level (CL) - 40 to 100 dB.
Upper Limit (UL) - 10 to 140 dB.
Projected Time - 1 to 24 hours.
), Peak value (L
Mn Pk
).
c-a
or L ), Maximum value (L
avg eq
).
), Day-Night average (L
n
),
Mx
),
dn
Models SE and DL