Standards: Meets ANSI $1.d-1971, type 2 and iEC-I{123
Frequency Response: A, B, and C weighted scales; linear (flat)
scale
Meter Response: Taut-band type meter wiUi FAST m' SLOW
selecllable respot_se_-"
"Slow" Response: With a pulse of 1000 llz simlsoidal signal
applied for 0.5 seconds, tile maximum residing is between 2 and 0
(typical 3.5) decibels less than steady state level. Maximum over-
shoot for all frequencies betweel', 03 llz and 8 Kilz is 1.6 dlt (typical
0.5) measured at,l dI3 below full scale.
Frequency Ilangc: 20 to 10,000 Hz
Electrical Output: Approximately 1.2 volts at full scale behind
1000 ohms. For connection use a Switchcraft type 780 Tini-plug or
equivalent, F.lectrieal output jack (AC OUT) can he shorted without
causing a meter reading error greater than 0.1 dB, Output ilnl_edanee
from the jack is 1000 ohms.
Crest Factor: 13 dB oll all rIiilge positions except for the 1;10
dB range where crest factor is 0 dB (ld0 dB limit),
Detector: Sqaare Law.type, Quasi-RMS,
Calibration: At 1000 llz using the Quest CA-10, CA-11, or
CA-12 Calibrator. or ally other high quality acoustical calibrator that
can accept the microphone size.
Micl_aphon__._e:lligh quality PZT ceramic, omnidirectional, 1.1'9--5
in, din,
Temperature llange: Operation: - 10°C to +50°C
Storage (less batteries}: -.10°C to ÷05°(;
Coefficient of Sensitivity: 0 to 0.03 dB/
°C at fi dB below ftdI scale meter reading.
Operating llumidity: 0% to 95% relative hualidity produces less
than 0.5 dE variation in SLM reading.
Effect of Magnetic Field: At field strength 1 oerstod (80
AT/I_I), 50.00 Hz produces less than ,t0 di:_indication measured with
C scale weighting tit maxinlum sensitivity meter orientation. The
eqttivalent A-weighted response to a 1 oersted, 60 Ilz magnetic fiald
is negligible. The equivalent A-weighted response to a 1 oersted, ,100
llz magnetic field is approximately 50 dE with the meter oriented
for maximum indication.
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