Farnell MarMonix MSL-765 User Manual Download Page 5

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SYMBOL FUNCTION

LCD

4 digits

MAX

Maximum hold

MIN

Minimum hold

OVER

over range

UNDER

under range

FAST

Fast response

SLOW

Slow response

dBA

A-Weighting(responseto human sense)

dBC

C-Weighting(response to machine monitor)

30—130

Range indicate

REC

Recording data into computer

AUTO

Auto level range selection

FULL

Memory full

HOLD

Data hold function

AutopoweroffPress the ”SETUP“ button to
disable power off

Low battery indicate

③

REC

button

Summary of Contents for MarMonix MSL-765

Page 1: ...SOUND LEVEL METER Product Code MSL 765 User Manual R E C F A S T A C WWW MARMONIX CO ...

Page 2: ...d by qualified personnel Periodically wipe the case with a dry cloth Do not use solvents or eradicator on this instrument Safety symbols Comply with EMC 2 FUNCTIONS DESCRIPTION This Sound Level Meter is designed for noise project quality control illness prevention and cure and all kinds of environmental sounds measurement It is applied to the sounds measurement at factory school office traffic acc...

Page 3: ...requency weighting A C Time weighting FAST 125ms SLOW 1s Microphone 1 2 inch electret condenser microphone Display 4 digits LCD display with a resolution of 0 1dB Display Update 2 times sec MAX hold Hold the Maximum reading MIN hold Hold the Minimum reading HOLD Hold the readings Alarm function OVER is when input is more than upper limit of range UNDER is when input is less than lower limit of ran...

Page 4: ...eration temperature and humidity 0 C 40 C 10 RH 90 RH Storage temperature and temperature 10 C 60 C 10 RH 75 RH Dimension 278 L x 76 W x 50 H mm Weight 350g Accessories Instruction manual battery screwdriver 3 5mm earphone plug windscreen software USB cable 4 NAME AND FUNCTIONS Windscreen LCD 12 13 14 15 16 17 18 D C 9V OU TPUT C AL REC F AST A C 1 2 3 4 5 8 6 7 10 9 11 ...

Page 5: ... SLOW Slow response dBA A Weighting responseto human sense dBC C Weighting response to machine monitor 30 130 Range indicate REC Recording data into computer AUTO Auto level range selection FULL Memory full HOLD Data hold function AutopoweroffPress the SETUP button to disable power off Low battery indicate REC button ...

Page 6: ...sly before power it on then press it will be displayed as following Press LEVEL button to adjust memory time press HOLD button to hold the setup 3 2 Data zero function Press the button continuously before power it on loosen the button when the display showing CLR after the meter power on which indicates that the data in DATALOGGER has been deleted SETUP button 4 0 The time chip adjustment Press SE...

Page 7: ...e adjustment mode press LEVEL to make the adjustment press HOLD to keep the setup Press the SETUP button third time the display showing The display showing hour adjustment mode press h P P M h A A M LEVEL to make the adjustment press HOLD to keep the setup Press the SETUP button fourth time the display showing ...

Page 8: ... setup Press the SETUP button sixth time the display showing The display showing year adjustment mode press LEVEL to make the adjustment press HOLD to keep the setup Press the SETUP button seventh time the display showing The display showing initialization of the time chip press HOLD to keep the setup time and date have returned to factory setup When the battery is exhausted or replaced if the tim...

Page 9: ...r second MAX MIN button Maximum and Minimum hold Press this button for one time to enter MAX MIN measurement MAX will appear on LCD maximum sound level will be captured and held until higher sound level is captured Press the button again MIN will appear on LCD and minimum sound level will be captured and held until new lower sound level is captured Press the button one more time to exit MAX MIN me...

Page 10: ...the data memory response then press HOLD to keep the setting Frequency weighting select button A A Weighting C C Weighting HOLD button Press HOLD button The hold function freezes the reading in the display Power button Turn the meter power ON OFF External DC 9V power supply terminal For connection with DC 9V power supply Aperture size external diameter 3 5mm internal diameter 1 35mm ...

Page 11: ...OUND OUTPUT AC DC AC Output voltage 1Vrms corresponding to each range step Output impedance 100Ω DC Output voltage 10mV dB Output impedance 1kΩ Calibration potentiometer CALL For external standard level calibration adjustments Tripod mounting screw Battery cover Microphone 1 2 inch Electret Condenser microphone ...

Page 12: ...unit 94 0dB is displayed NOTE All products are well calibrated before shipment Recommended recalibration cycle 1 year 6 MEASUREMENT PREPARATION Remove the battery cover on the back and put in one 9V battery Recover the back cover When battery voltage drops below the operating voltage or battery aging this symbol will appear on LCD Replace the 9V battery When the AC adapter is used insert the plug ...

Page 13: ...he instrument comfortable in hand or fix on tripod and measure sound level at a distance of 1 1 5 meter 8 NOTICE i Do not store or operate the instrument at high temperature and high humidity environment ii When not in use for long time please take out the battery to avoid battery liquid leakage and cautery on the instrument iii When using the instrument in the presence of wind it is a must to mou...

Page 14: ...ectory such as C usb_driver 2 Connect the USB to the computer the Windows system will show finding a new hardware Choose specific directory C usb_driver according to the instruction 3 After Driver installation a new COM port will be added to the Ports in the Device Manager Port number will be ranged following the primary COM ports such as COM3 or COM4 1 4 Once the drive software is installed start...

Page 15: ... menu REAL TIME SETUP to set the monitoring data data volume response monitoring time 1 6 DATALOGGER menu The computer read the memory data in the meter when REC not appear on the display and the onnection is in order ...

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