General-tools-and-instruments DSM8921 Manual de usuario

Digital Sound Level MeterModel: 8921 8922

3 Press the BA MODE key. F will be displayed to the left of the SPL (sound pressure level) icon. The digital display will show th

SELECTING AUTOMATIC AND MANUAL RANGINGThe meter features six measurement ranges in 10dB steps: 30~80dB, 40~90dB, 50~100dB, 60~110dB, 70~120dB, 80~130d

2 Press and hold the DOWN or UPPER key to switch back to automatic ranging.(See Fig.11)If the meter is operating in manual range and UNDR

The automatic shutoff feature will resume the next time the meter is turned on.REPLACING THE BATTERYWhen the entire display flashes, the 9V battery ha

MeasurementLevel A WeightingMeasurementLevel C WeightingMeasurementLevel RangeAutomatic RangeTime WeightingSegment RangeDigital DisplayQuasi-Analog Ba

RS232 OUTPUT:The meter can link with personalcomputer to capture on-line datas ,display presure records with real-time output, you can retrieve file,

The meter complies with the essential protection requirements of Council Directive 89/336/EEC on the approxi- mation of the laws of the Member State

INTRODUCTIONYour digital sound level meter provides automatic or manual ranging in six meas-urement ranges from 30 to 130dB. The unit meets ANSI S1.4

FRONT PANEL DESCRIPTION1 MICROPHONE2 LCD DISPLAY3 ON/OFF 4 REC 5 MAXHLD 6 C/A 7 BA MODE 8 F/S 9 DOWN 10 UPPER 11 DC 9V

FRONT PANEL DIAGRAM160

MEASURING SOUND LEVELSSound levels are displayed both digitally and in a bar graph. The digital display is updated every 160ms, while the bar graph is

SELECTING A AND C WEIGHTINGWhen you turn the meter on, it will be in A weighting mode. A weighting enables the meter to respond in the same man

SELECTING THE RESPONSE TIMEYou can select fast or slow response time to suit different applications and standards. For example, most OSHA-related test

RECORDING THE MAXIMUM AND MINIMUM MEASUREMENTS 1 Press the ON/OFF key to turn the meter on.2 Press the REC key. REC will be displayed on

4 Press the REC key again. MAX will appear on the bottom of the screen and the maximum sound level measurement will be displayed