B&K 2250 Light Manual de usuario descargar pdf (Pagina 13)

CHAPTER 2

Assembling Your Analyzer

1) Measurement Microphone: A Brüel & Kjær Prepolarized Free-field ½ Microphone is

used. A robust and reliable microphone with a wide frequency range

2) Preamplifier: Used to convert the high-impedance output of the microphone to low

impedance, suitable for driving long extension cables

3) (Manual Event 1 Pushbutton): This allows you to manually indicate events during a

measurement. Using 2250 Light software BZ-7130, BZ-7131 and BZ-7132, you can

control signal recording, while with BZ-7133 you can insert an event marker and control

recordings

Note: Signal recording requires a Signal Recording Option BZ-7226 license as well.

4) (Manual Event 2 Pushbutton): A second pushbutton is provided to allow you to

mark a second type of event during a measurement

5) , , , (Navigation Pushbuttons): These move the active screen component

(Field Selector) and navigate the user interface

6) (Back-erase Pushbutton): This allows you to erase the last 5 seconds of measurement

data or to insert an Exclude Marker (BZ-7133 Logging Software for 2250 Light only)

7) (Accept Pushbutton): This allows you to accept any changes you make to the

instrument’s setup

8) (Reset Measurement Pushbutton): This allows you clear the current measurement

from the screen

9) (Start/Pause Pushbutton): Press this to start, pause or continue with a measurement

10) (Status Indicator): The red, yellow or green lights, (or LEDs), referred to as the

‘Traffic Light’ either side of the Start/Pause pushbutton, indicate important states of the

instrument during operation, that is, measurement stopped, paused or running. See Chapter

4 for further details

11) (Save Pushbutton): This allows you to save measurement results

12) Display Screen: A high-contrast, black and white, touch-sensitive screen

13) (Main Menu Icon): This calls up the Main Menu, which allows you to navigate

immediately to all the main functions of the instrument, such as Setup, Explorer (or Data-

browser), Preferences, and the Calibration procedure

14) (Power-on Pushbutton): Turns the instrument on and off. If held in for 1 second, the

instrument goes into standby mode; if held in for more than 4 seconds, it turns the

instrument off

15) Stylus: Stored in a holder on the side of the instrument, for use on the touch-sensitive

screen. You can choose to use the stylus or the pushbuttons, depending on your preference

and the measurement situation. (Also see section 4.4.5.)

16) Top Socket: This is the microphone input socket for 2250 Light. The Measurement

Microphone and Preamplifier (items 1 and 2 respectively) are connected directly to this

socket. For more details see section 2.3 that follows

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 211 212

Sin comentarios

B&K 2250 Light Manual de usuario Pagina 13