User's Manual Sound Level Meter
Contents
1. sounds The maximum measured level is up dated continuously Press once again the button will release the hold and allow a further measurement Data Hold button Press and hold the Button for over 2 second to turn on or off data hold function The hold function freezes the reading in the display Microphone 1 2 inch Electret Condenser microphone Battery Cover V Measurement Preparation 1 Battery loading Remove the battery cover on the back and put in one 9V Battery 2 Battery Replacement When the battery voltage drops below the operating voltage mark BAT appears If it appears battery should be replaced with new one VI Operating Precautions 1 Wind blowing across the microphone would bring additional extraneous noise Once using the instrument in the presence of wind it is a must to mount the windscreen to not pick up undesirable signals Windscreen If you operate at wind speed over 10m sec please put protective accessories in front of the microphone Display SYMBOL FUNCTION LCD Adigits MAX Maximum Value hold OVER Over range F Fast response S Slow response A A Weighting C C Weighting Lo Low Range 30 100dB Hi High Range 60 130dB BAT Low Battery 5 Power ON OFF button Co Turn the meter power ON OFF Backlight Button Co Turn the meter backlight ON OFF A weighting C weighting select button A A Weighting For general sound level measurements C C We2. the display Press the HOLD button momentarily to activate or to exit the HOLD function Turn OFF the instrument and remove and remove battery when not in use This unit conforms to the IEC651 type 2 ANSI S1 4 type 2 for Sound Level Meters This Sound Level Meter has been designed to meet the Health Industrial safety offices and sound quality control in various measurement requirements of safety Engineers environments e Ranges from 30dB to 130dB at frequencies between 31 5Hz and 8 KHz Display with 0 1dB steps on a 4 digits LCD e With two equivalent weighted sound pressure levels A and C lll Specifications Standard applied Frequency range Measuring level range IEC651 type 2 ANSI S1 4 type 2 31 5Hz 8KHz 30 130dB Frequency weighting A C Microphone 1 2 inch electret condenser microphone Calibration Electrical calibration with the internal oscillator 1kHz sine wave Display LCD Digital display 4 digits Resolution 0 1dB Display Up data 0 5 sec Time weighting FAST 125mS SLOW 1 sec Level ranges Lo 30 100dB 2 Hi Accuracy Alarm function Maximum hold Auto power off Power supply Power life Operation temperature Operation humidity Storage temperature Storage humidity Dimensions Weight 60 130dB 1 5dB under reference conditions OVER is show when input is out of range Hold readings the Maximum Value with decay lt 1dB 3minute
3. eo uoJejeQ sejes ewa N zu on ES Pw o ae EE CC ge Ge e as R2 D SS 75 e Eg 28 co g ER oe Qe aD 2 eS 8 SLNAIAWNUYULSNI NOUV IV 4ojnquisip NVIGVNVO pezuoujne Users Manual Sound Level Meter 1 Make the following buttons and function switch settings Contents Display dB A Hi or Lo F Function A Weighting Response Time FAST Title Page Level range 30 to 100dB Lo or 60 to 130dB Hi l Safety Information esses 1 Measurement mode MAX Hold and Data Hold Mode Il General Description function disable Il Specifications ins oneri eser ond un 2 2 Insert the microphone housing carefully into the insertion IV Name And Functions esses hole of the calibrator f l V Measurement Preparation 3 Open battery cover and remove the battery to adjust the f CAL94dB potentiometer of the unit The level display will VI Operating Precautions indicate the desired level VII Measuremienit 2 cede ced c0 eoa E ease ve Our products are all well calibrated before shipment VIII Calibration Procedures 10 A Safety information Read the following safety information carefully before attempting to operate or service the meter Use the meter only as s
4. ighting 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 Time weighting select button CIS F fast response for normal measurements fast varying noise S slow response for checking average level of fluctuating noise Level range select button Lo 30 100dB Hi 60 130dB When OVER is indicated the ranges switch to another range for measurement
5. pecified in this manual otherwise the protection provided by the meter may be impaired e 1 2 3 e 1 Oo CE Environment conditions Altitude up to 2000 meters Relatively humidity 90 max Operation Ambient 0 40 C Maintenance amp Clearing Repairs or servicing not covered in this manual should only be performed by qualified personnel Periodically wipe the case with a dry cloth Do not use abrasives or solvents on this instruments Safety symbols Meter is protected throughout by double insulation or reinforced insulation When servicing use only specified replacement parts Comply with EMC I General Description Thank you for using our Sound Level Meter To ensure that you can get the most from it we recommend that you read and follow the manual carefully before use VIII Calibration Procedures Using a standard Acoustic Calibrator 94dB 1kHz Sine wave Acoustic Calibrator 4 9V BATTERY NEDA 1604 IEC 6F22 A Hi A Lo ighting weighti Screwdriver 10 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 When MAX maximum hold mode The instrument captures and holds the maximum noise level for is chosen a long period using any of the time weightings and ranges When HOLD data hold mode is chosen The hold function freezes the reading in
6. s Meter automatically shuts down after approx 15 minutes of inactivity One 9V battery 006P or IEC 6F22 or NEDA 1604 About 50hrs alkaline Battery 0 to 40 C 32 to 104 F 10 to 90 RH 10 to 60 C 14 to 140 F 10 to 7596 RH 210 L JX55 W X32 H mm 230g including battery 9V battery carrying case Instruction manual To achieve more accurate measurement use an extension cable to separate the Microphone from the main body so that the effect of unexpected sound reflection can be eliminated Calibrate the instrument before operation if the instrument was not in use for a long time or operated at bad environment Do not store or operate the instrument at high temperature and high humidity environment Keep microphone dry and avoid severe vibration Please take the battery and keep the instrument in low humidity environment When not in use Vil Measurement 1 2 3 Open battery cover and install a 9 volt battery in the battery compartment Turn on power and select the desired response Time and weighting If the sound source consists of short bursts or only catching sound peak set response to FAST To measure average sound use the slow setting Select A weighting for general noise sound level and C weighting for measuring sound level of acoustic material Select desired Level MAX Hold button The max Hold position is used to measure the maximum level V Name and Functions of
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