Cirrus Research CR:811C - User Manual

CR:800C Series Sound Level Meter User Manual
Page 1
This manual, the software to which it relates, the
program code and drawings are all:
© Copyright Cirrus Research plc 1989-2008
User Manual for the
CR:800C Series
of Sound Level Meters

Cirrus Research CR:811C Specifications

General

Time Weighting	Fast, Slow, Impulse
Frequency Range	10Hz to 20kHz
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +60°C
Standards	IEC 61672-1:2013 Class 1
Frequency Weighting	A, C, Z
Data Logging	Yes
Battery Type	4 x AA Alkaline
Accuracy	Class 1 / Type 1
Measurement range	20dB(A) to 140dB(A)