Casella-cel CEL-440 Bedienungsanleitung PDF herunterladen (Seite 19)

2. PRELIMINARY OPERATIONS

2.1 Select Instrument Configuration

(Language, Microphone Response Etc.)

Select the language in which the instrument will present menu options.

This should be the first operation so that the displays and options will be

understood.

Similarly, to get the most accurate results, these instruments

must be operated with a known microphone directional response and be

calibrated for this response.

When the language and microphone response are known to be

correct for the proposed measurement task, go directly to Section 6

Calibration Check.

European IEC standards require measurements to be performed

with microphones that have a Free Field response, while the U.S.A.

ANSI standards require Random Incidence microphones. The

microphone response is set via the same Configuration menu.

Normally, these more permanent characteristics will need to be

set only once, as the instrument will store the settings and use them the

next time it is switched on.

Proceed as follows.

k-01

Ø9Jan98 12.22

Last Cal.

Calibration

Memory

2/6

k-02

Measure Mode

Setup

Preliminary Operations

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Casella-cel CEL-440 Bedienungsanleitung Seite 19