Circuit-test DMS-4400 Manual Download Page 1 | Manualshive

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DMS-4400

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DMS-4400

SOUND LEVEL METER

CIRCUIT-TEST

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Summary of Contents for DMS-4400

Page 1: ...DMS 4400 1 DMS 4400 SOUND LEVEL METER CIRCUIT TEST ...

Page 2: ...DMS 4400 1 DMS 4400 Contents 1 General Description Specifications 1 2 Name and Functions 3 3 Calibration Procedures 6 4 Measurement Preparation 7 5 Operating Precautions 7 6 Measurement 8 ...

Page 3: ...B at frequencies between 31 5Hz and 8 KHz Display with 0 1dB steps on a 4 digits LCD With two equivalent weighted sound pressure levels A and C 1 GENERAL DESCRIPTION SPECIFICATIONS a Display 4 digits LCD with maximum minimum Resolution 0 1dB Display Update 0 5 sec b Standard applied IEC61672 Type2 ANSI1 4 Type2 c Frequency range 31 5Hz 8KHz d Measuring level range A Weighting 30 130dB C Weighting ...

Page 4: ...CD display n Power Supply 9V NEDA 1604 IEC 6F22 JIS 006P battery 1pcs o Power Life About 50 hrs Alkaline Battery p Operating Altitude Up to 2000M q Operating temperature Humidity 5 C 40 C below 80 RH r Storage Temperature Humidity 10 C 60 C below 70 RH s Dimension 200mm L x55mm W x38mm H t Weight About 170g Including batteries u Accessories Instruction manual carrying case 9V Battery windscreen ...

Page 5: ...hting select button 6 Maximum Minimum hold button 7 Backlight button 8 Power button 9 Microphone 10 Battery Cover 11 Tripod socket 2 NAME AND FUNCTIONS 1 Windscreen If operating at wind speeds of over 10m sec please put protective accessory windscreen in front of the microphone 4 7 1 2 5 6 8 9 10 3 11 ...

Page 6: ...can be locked while pressing this button 4 Frequency Weighting select button A A Weighting for general sound level measurements C C Weighting for checking the low frequency content of noise If the C Weighted level is much higher than the A weighted level then there is a large amount of low frequency noise 5 Time weighting select button FAST for normal measurements SLOW for checking average level o...

Page 7: ...te itself when a lower value is measured 6 3 The MAX MIN function will be disabled if the MAX MIN button is pressed for more than 1 second or if the meter is turned off 7 Backlight button Press the button to enable the display backlight for easy readings in dark environments Press more than 1 second to disable backlight or wait and it will automatically turn OFF after 15 seconds 8 Power button Pre...

Page 8: ... the button settings display dBA Time weighting FAST 2 Insert the Microphone nozzle carefully into the insertion hole of the calibrator 3 Press the A C and the HOLD button simultaneously for more than 1 second and the LCD will start blinking to confirm calibration Acoustic calibrator Sound level meter ...

Page 9: ...l appears this indicated that the battery needs to be replaced 5 OPERATING PRECAUTIONS 1 Air blowing across the microphone can cause noise and interference when using the instrument in windy environments use the windscreen to reduce noise 2 Calibrate the instrument before operation if the instrument was not in use for a long time or operation at bad environment 3 Do not store or operate the instru...

Page 10: ...e sound level and C weighting for measuring sound level of acoustic material 3 Hold the instrument comfortably in hand or fix on tripod and point the microphone at the suspected noise source the sound pressure level will be displayed 4 When MAX MIN maximum minimum hold mode is chosen The instrument captures and holds the maximum or minimum noise level Press once to select MAX value Press again to ...

Page 11: ...CIRCUIT TEST Division of RP Electronic Components Ltd www circuittest com ...

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