BRUEL & KJAER 2226 User Manual

Instruction Manual
Integrating Sound Level Meter Type 2225
Integrating Impulse Sound Level Meter Type 2226
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Briiel•l( j ar ~ Type 22211
033-0523
Two portable Sound Level Meters with easy-
to-read
"thermometer" display, complying
with IEC 651 Type 2*, DIN 45634 and
ANSI S1 .4 - 1971 Type S2A. An A-weight-
ing network is built-in. "Fast" and "Slow"
time constants and a one minute L eq easily
converted to SEL (LAx) on both meters. In
addition the 2225 has a "Peak" hold and
the 2226 an "Impulse" function and "Max.
hold" facility on all time constants. The
measuring range from 25 dB(A) to
1 40 dB(A) peak is covered in 4 overlapping
40 dB(A) ranges. Automatic reset and other
features enable operators to make accurate
valid measurements after a short period of
familiarisation. DC output to a level recor-
der.
Supplied with Prepolarised Condenser Mic-
rophone Type 4175
• except for "Max . hold" on 2225
+ BrUel & Kjaer

BRUEL & KJAER 2226 Specifications

General

Frequency Range	20 Hz - 20 kHz
Standards	ANSI S1.4
Weighting	A, C
Time Weighting	Fast, Slow, Impulse
Power Supply	Batteries or External DC
Detector	RMS