Svantek SV 971A, User Manual

Page: 207 / 305

SV 971A User Manual
– Appendixes
207
APPENDIX C. TECHNICAL SPECIFICATIONS
C.1 S
PECIFICATION OF
SV 971A
AS
S
OUND
L
EVEL
M
ETER
(SLM)
C.1.1 Specification of SV 971A as SLM in the standard configuration
Statement of performance
SV 971A working as SLM with all listed below accessories meets requirements of IEC 61672-1:2013 for the
Class 1 Group X instruments.
Configuration of the complete SLM
SV 971A sound level meter and analyser comprising:
SV 18A microphone preamplifier
ACO 7152 prepolarised free-field microphone (1/2", typical sensitivity
32 mV/Pa, polarization 0 V)
Recommended calibrator:
SV 36 Class 1 sound calibrator 94/114 dB@1000 Hz or equivalent (not
included in the standard set)
Accessories included in the SV 971A instrument set
SC 158 USB-C cable
SA 22 windscreen
Accessories available
SV 36 Class 1 sound calibrator: 94/114 dB@1000 Hz
SP 75 RS232 interface option
SA 271A outdoor microphone kit
Measured quantities
The measured quantities for SLM mode are: LXpeak , LXYmax , LXYmin , LXY , LXeq , LXE , Lden , LEPd ,
Ltm3 , Ltm5 , Ln (Leq statistics), EX (expected Leq value), SD (standard Leq deviation), OVL (overload time
%), two rolling Leq ( LR1 and LR2 ). Definitions for above mentioned parameters are given in Appendix D.
Additional functions
•
Overload indication
•
Under-range indication
•
Battery state indication