Casella-cel CEL-440 Manual de usuario descargar pdf (Pagina 59)

Narrow Band Data Storage:

Manual storage of 999 octave or 1/3 oct sets of results with

choice of:

Auto scanning of frequency bands with measurement and step

on each time the current band has stabilised,

Timed scanning with a predetermined time for each band that

can be set between 5 and 60 s,

Manual scanning of bands with saving of band data at each step.

Only 1 spectrum can be captured per run as the CEL-440 has

no auto repeat mode.

The memory can save a mixture of full octave and 1/3 octave

measurements. (L, L

,L result during measurement).

The number of bands scanned can be set between all available

and a single band.

Data Recall:

Stored results can be recalled to the display (even while a

measurement is in progress).

Data sets can be downloaded to a Centronics printer to give a

preformatted hard copy.

Data can be downloaded according to RS 232 standards to a PC

for further manipulation under the control of dB 21 or dB 22.

Outputs and Inputs:

AC output signal for tape recording or headphone.

0.5 V RMS Maximum with minimum load impedance 22 kΩ.

AC input signal for analysis inserted via a line input terminal in

the bottom panel.

0.5 V RMS Maximum with maximum source impedance 22 kΩ,

or AC input signal inserted via a CEL-516 Input Adaptor, 10 V

RMS Maximum with maximum source impedance 100 kΩ.

Effect of Temperature:

Accuracy better than ±0.5 dB over the range -10 to +50

when corrected as indicated here.

Specification

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Casella-cel CEL-440 Manual de usuario Pagina 59