Casella-cel CEL-440 Uživatelský manuál stáhnout pdf (Strana 28)

When the required measurement mode and timer settings have been

selected, press once to obtain a Measurement screen or twice to

obtain the Main menu that gives access to all settings and stored data.

3.2 Select Measurement Setup

(Factory- or User-Prepared Setups)

The Setup specifies the particular parameters that are to be measured.

Selection procedures for broadband and narrow band measurements

differ, as a wider choice of parameters is available for broadband, while

several frequency band scanning options are available for narrow band. A

factory configured setup and up to four user setups can be stored for

each available bandwidth.

Firmware version 2.0 introduced the facility for all broadband

measurement parameters to be obtained from a single narrowband,

provided octave or third octave band are available.

In addition, the CEL-480 can make measurements at specified

time intervals and store period noise data and exceedance (L

) values

and profiles. Display screens that are available only for a CEL-480 are

shown with a dashed ----line.

3.2.1 Select Broadband Measurement Setup

The factory setup for single band (broadband ) measurement contains a

set of standard parameters selected for general purpose use.

User setups contain parameters that have been selected to

perform some particular task and are saved under a user setup identity.

Changes to user setups are saved for re-use, however any changes to

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Select Mode & Setup

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Casella-cel CEL-440 Uživatelský manuál Strana 28