B&K 2250 Light Instrukcja Użytkownika Pobierz pdf (Strona 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

Preamp ZC-0032

Microphone

4189

Microphone

4189

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B&K 2250 Light Instrukcja Użytkownika Strona 5

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