INSTRUCTION MANUAL DSM101 1-800-547-5740 • Fax: (503) 643-6322 www.ueitest.com • email: info@ueitest.
Introduction Measuring Sound Levels The DSM101 provides automatic or manual ranging. This meter features 4 measurement ranges from 40 to 130 dB and features 0.1 dB resolution. Sound levels are displayed both digitally and in a bar graph. The digital display is updated every 160ms, while the bar graph is updated every 40ms. The meter allows you to select between fast and slow response times as well as A and C weighting. A maximum hold function is provided. Jacks on the meter provide AC analog output.
C weighting is suitable for the flat response measurements with no increase or decrease of amplitude over the frequency spectrum. Applications for C weighting include the sound level analysis of engines and machinery. 4. Press the "REC" key again. "MAX" will appear on screen side by the "REC" and the maximum sound level recording at this time, but the bar graph will continue to show the current reading. Diagram I Press the "A/C" key to select between A and C weighting.
If the meter is operating in manual range and "LO" is displayed, the sound is too low or the range. If "HI" is displayed, the sound is too loud. In either case, you must adjust the measurement range or your readings will be inaccurate. Diagram L Insert the microphone into the hole of the calibrator. Press calibrator key to power on, and adjust the CAL potentiometer of the unit, the level display will indicate the desired level. While selecting C weighting, display +/-0.3 dB deviation is reasonable.
DSM101 Sound Level Meter Limited Warranty The DSM101 is warranted to be free from defects in materials and workmanship for a period of three years from the date of purchase. If within the warra n ty period your instrument should become inoperative from such defects, the unit will be repaired or replaced at UEi’s option.
