B&K Precision CAL73 - Datasheet - Manual

B&K Precision Corporation
22820 Savi Ranch Parkway, Yorba Linda, CA 92887
Tel: 714-921-9095, Fax: 714-921-6422
www.bkprecision.com
Specifications subject to change without notice
Data Sheet
Models 732A, 735
and CAL73
Sound Level Meters & Calibrator
Whether you are testing for OSHA compliance, quieting equipment, or monitoring the roar of a
stadium crowd, B+K Precision's Sound Level Meters can get the job done. The model 732A and 735
Sound Level Meters provides 30~130 dB capability in three convenient measurement ranges Low,
Med and Hi with an accuracy of ±1.5 dB. The meter meets the IEC 651 Type II and includes
frequency weighting A & C and fast and slow time weighting. Two auxiliary ports provide either AC
output, 1Vrms full scale, or DC output, 10mV /dB. With models 732A or 735, B&K Precision can
meet all your sound testing needs.
Models 732A & 735
Sound Level Meters
Common features
• RS-232 Interface
• Bargraph
• MAX/MIN function
• Auto Ranging (30 ~ 130dB)
• Resolution 0.1dB
• Level Range Display
• AC/DC Signal Output
• Auto Power Off
• Backlit LCD
The CAL73 sound level calibrator is used to calibrate sound level meters and other sound measure-
ment equipment. You can calibrate 1 inch diameter microphones directly and 1/2 inch microphones
using 1/2 inch adapter supplied with the calibrator.
Model CAL73
Sound Level Calibrator
• Conforms to IEC 60942 (2003) Class 2, ANSI SI.40-1984
• 94dB and 114dB Sound calibrator at 1KHz
• Accurate and simple to use
• Fits 1 inch and 1/2 inch microphones
Model 732A
Model CAL73
Model 735 only
• Windows Software Included
• Clock Display
• 32,000 Records Data Logger
Back Light Function RS-232 Interface RS-232 Software
for Windows 95/98/
2K/XP included with
model 735