DVM805 - 1 - VELLEMANDVM805 – DIGITAL SOUND LEVEL METER1. IntroductionTo all residents of the European UnionImportant environmental information about this productThis symbol on the device or the package indicates that disposal of the device after its lifecycle could harm the environment.Do not dispose of the unit (or batteries) as unsorted municipal waste; it should be taken to a specialised company for recycling.This device should be returned to your distributor or to a local recycling service.Respect the local environmental rules.If in doubt, contact your local waste disposal authorities.Thank you for buying the DVM805! Use it only as specified in this manual to avoid erroneous performance.2. SpecificationsMax. altitude 2000 mApplicable standard IEC651 type 2, ANSI S1.4 type 2Frequency range 31.5Hz ~ 8 KHzMeasuring level range 35 ~ 130dB (Lo: 35-100 dB; Hi: 65-130dB)Frequency weighting A/CMicrophone ½" electret condenser microphoneCalibration electrical calibration with the internal oscillator (1 kHz sine wave)Display 3 ½ digit LCDResolution 0.1dBTime weighting fast (125ms) or slow (1s)Accuracy ± 1.5dB (under reference conditions)Overrange indication “OVER” is displayedAuto power-off after 15 minutes of inactivityPower supply one 9V-battery (NEDA 1604 or 6F22)Battery life ± 50hrs (alkaline battery)Low-Battery indication “BAT” is displayedOperating temperature 0~40°C (32~104°F) with 10~90% RHStorage temperature -10 to +60°C (14 to 140°F) with 10~75% RHDimensions (H x W x D) 210 x 55 x 32 mmWeight 230g (incl. battery)3. Front Panel Description1. Wind cap: in wind speeds of >10m/s, put this cap over the microphone2. ½" electret condenser microphone3. Display: 3 ½-digit LCD with MAX HOLD, DATA HOLD, Lo, Hi, A, C, BAT, S, F, dB, andOVER indication4. POWER ON/OFF button5. Backlight button6. A/C weighting button (A = general; C = low frequencies)7. F/S button: to select slow or fast response8. Low/Hi button: to select the higher or lower measuring ranges9. MAX/HOLD button:10. Battery cover for 9V battery at the back of the meter