B&K 2250 Light Instrukcja Użytkownika Pobierz pdf (Strona 193)

CHAPTER 16

2-channel Option BZ-7229

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2) As a dual-channel, multi-range sound level meter and frequency analyzer

– Both channels can be measured simultaneously

– The full level measuring range is covered in two ranges with a level range control.

Theses ranges are called:

a) High Range for the least sensitive range with 0 dB gain, which allows the highest

possible input

b) Low Range for the most sensitive range with 30 dB gain

To set the range settings for 2-channel measurements, tap Main Menu and select

Setup > Input > Range and select the appropriate range (Fig.16.2).

Fig.16.2

Range setting

16.3.1 Underrange/Overload

In case of an Underrange indication in line 2 of the status panel (High Range only), change to

Low Range. In case of Overload indication (typically Low Range), change to High Range. (Or

use Autorange, which takes a few seconds.) The latched overload is indicated per channel

using icons: For Ch.1 , for Ch.2: and for both channels: .

16.4 Setting Up 2-channel Sound Level Meter

1) Select the 2-Ch. Sound Level Meter project template.

The project template is displayed at the top of the screen, if it does not display the correct

template tap the Project Template Bar at the top of the screen and select the correct

template from the drop-down menu. (See section 3.3.1 for more details on templates.)

2) Tap the Main Menu icon .

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B&K 2250 Light Instrukcja Użytkownika Strona 193