1 f r a n Ç a i s e n g l i s h d e u t s c h i t a l i a n o e s p a Ñ o l notice d’utilisation user’s manual bedienungsanleitung libreto d’istruzioni manual de instrucciones c a 8 3 4 ■ ■ ■ ■ ■ sonomètre ■ ■ ■ ■ ■ sound level meter ■ ■ ■ ■ ■ schallpegelmesser ■ ■ ■ ■ ■ analizzatore di rumori ■ ■ ■...
12 you have just purchased a c.A 834 sound level meter and we would like to thank you for your trust. To obtain the best possible service from your instrument : - read this user’s manual carefully, - comply with the precautions for use. Guarantee our guarantee is applicable, unless otherwise stated,...
13 1. Presentation the c.A 834 sonometer-recorder is designed to evaluate sound nuisances according to safety requirements and current legislation. It conforms to standards iec651 type 2 and ansi s1.4 type 2 for sonometers. It is capable of a multitude of professional and domestic applications : the...
14 2. Keep the microphone well away from any sound-reflecting surface like walls or floors, to minimise any errors due to possible spurious reflexions. When measuring, hold the sonometer at arm’s length to avoid reflexion off your own body and to allow the sound to propagate freely in every directio...
15 2. Lcd 4-digits display : max holding of maximum value min holding of minimum value over indicates that the selected measurement range is inappropriate. Use the level button to select the suitable measurement range. Under indicates that the selected measurement range is inappropriate. Use the lev...
16 4. Operation of the instrument 4.1 choice of measurement range the sonometer has 3 set measurement ranges (30-80db, 50-100db, 80-130db) and one automatic measurement range (30-130db). To choose your measurement range, use the “level” push button. If the “under” or “over” symbols appear permanentl...
17 4.5 max / min mode press the max/min push button to actvate the max/min mode. This is a way of recording the maximum and minimum levels reached during a measurement campaign. To display the maximum level, press once (max indicated on the screen) and to display the minimum level, press the push bu...
18 4.7 activation / deactivation of the automatic shut off by default, the automatic shut off mode is activated when you switch on your unit. The instrument will switch off automatically after 30 minutes if none of the buttons is pressed, no recordings are being made or if none of the rs232 links is...
19 - accuracy : ± 1.5db - frequency dynamics : 31.5hz to 8khz - frequency weighting : a and c (as per iec 651) - time weighting : fast : 125ms slow : 1s - rs232 input / output signal : 9600 bauds / no parity / 8 bits / 1 stop bit - analogue output : ac output : 1vrms at full-scale impedance : 200 Ω ...
20 6.2 cleaning the casing clean the casing with a cloth and a little soapy water. Clean off with a damp cloth. Do not use any solvents. 6.3 metrological verification it is essential that all measuring instruments are regularly calibrated. For checking and calibration of your instrument, please cont...
21 8. Software s-834 8.1 recommended configuration - 90 mhz processor or higher - 32 mb of ram - at least 5 mb on the hard disk for the installation of the software - operating system: windows 95 / 98 / nt 4.0 or higher - recommended screen resolution: 800 x 600 8.2 installating the software 1. Clos...
