6
Outputs
•
AC output
(using selected frequency weighting)
Output voltage:
2Vrms (at full-scale of the range)
Output impedance:
5k
Ω
Load impedance:
≧
1M
Ω
•
DC output
Output voltage:
10mV/dB
Output impedance:
5k
Ω
Load impedance:
≧
1M
Ω
•
I/O connector:
Sound level meter control from and data output to a computer (USB)
•
Alarm output:
5Vdc, typical
Power requirements
•
Qty 4 x 1.5V IEC R6P (size “AA”) manganese super heavy duty batteries or
equivalent.
•
Battery life
: Approx. 24 hours
•
External power source:
DC voltage from 5V to 6V
Current rating:
Approx. 20mA @ 6V
Ambient conditions:
•
Operating conditions
: -10℃ to +50℃, 30% to 90%RH non-condensing
•
Storage conditions
: -10℃ to +60℃, <70%RH non-condensing
•
Effect of temperature:
< 0.5dB (-10 to +50℃)
•
Effect of humidity:
< 0.5dB (for 30%RH to 90%RH at 40℃, 1000Hz)
•
Effect of vibration:
A 40 Hz 1m/s vibration produces no noticeable effect.
•
Effect of magnetic field:
No noticeable effect.
Compliance with standards:
•
:
indicates
compliance with applicable European Union Directives.
•
EMC Emission
: IEC 61000-6-3, Generic emission standard for residential,
commercial and light industrial environments.
No significant emissions from the instrument.
IEC 61672-1, Instrumentation standard classification group X and
performance class 2 sound level meter.
•
EMC Immunity
: IEC 61000-6-2, Generic standard-Immunity for industrial
environments.
No degradation in performance when subjected to 10V/m
unmodulated.
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