Atec Bruel-Kjaer-2250-2270 - Manual (Page 5)

5
Fig. 3 Key features of Hand-held Analyzer Type 2270
Dual-channel Measurement
Fig. 4
Setup for dual-channel
measurements
as used with
Dual-channel Building
Acoustics Software
BZ-7229 Type 2270 is designed with two independent
measurement channels with the potential to
measure all the usual acoustic parameters,
including third-octave frequency content at
two locations simultaneously. This capability
has a number of benefits, such as:
• Reducing measurement time in multi-point tasks in building acoustics
• Allowing real-time operations on two channels in sound intensity measurements
120261
Power Switch
Windscreen
Sensor
Windscreen
Navigation Pushbuttons:
• Up/down, left/right arrow keys
Microphone/Preamplifier Stage:
• Falcon™ Range ½
 microphone and
microphone preamplifier stage
• The microphone preamplifier stage is able to
drive an extension cable of up to 100 m, a
valuable feature when a measurement re-
quires remote location of the microphone
Battery Charge:
• 8 – 24 V DC input from a universal
mains adapter or external batteries
Output:
• Output socket for software-
determined signals
Display:
• Touch sensitive color
screen with backlight
USB 2.0 (On-the-Go)
Micro-AB socket:
• Allows data transfer and remote
control of the instrument directly
with a host PC
High-speed LAN Interface
Trigger/Tacho Input
Slots for Secure Digital (SD)
memory cards
Microphone for
commentary
Battery Charge Indicator LED
Back Erase/Exclude Pushbutton:
• Allows you to erase the last
5 s of data
• Mark logged data with an
exclude marker
Start/Pause Pushbutton:
• Press to start a measurement
• Press to pause a measurement
Store Pushbutton:
• Store measurement
results
Battery Compartment
for rechargeable
battery pack
Reset button
3.5 mm Stereo Socket for Headphones:
• For reviewing recorded comments or
listening to measurement signals
Input Channels 1 and 2:
• For AC/DC or CCLD signals. Can be used
when analysing electrical signals
Mounting thread
Red, yellow, green
Status Indicators
Thread for
tripod/wrist strap
Cover for protecting
connectors
Non-slip surfaces
for safe grip
Event Pushbutton:
• For marking events
Accept Pushbutton:
• Accepts any changes
made to parameters/setups
Commentary Pushbutton:
• Allows you to attach recorded
messages to measurements
Reset Measurement Pushbutton:
• Allows you to reset Type 2270’s
measurement buffers
Stylus (stored)
G4 indicates hardware
version 4
USB 2.0 Standard A socket
• For connection to USB peripherals
Camera
070135/1
Type 2270 (with BZ-7229)
Dual
10-pole
Adaptor
JP-1041
Cable AO-0679
Cable AO-0679
Preamp ZC-0032
Preamp ZC-0032
Microphone
4189
Microphone
4189