SOUND LEVEL METER ATE-9051 User’s Manual
1. SAFETY INFORMATION Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual： Environment conditions ① Altitude lower than 2000 meters ② Relatively humidity ≤90％RH ③ Operation Ambient 0 ~ 40℃ Maintenance & Clearing ① Repair or servicing not covered in this manual should be performed by qualified personnel. ② Periodically wipe the case with a dry cloth. Do not use solvents or eradicator on this instrument.
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 access and household, etc. This unit confirms to the IEC61672-1 CLASS2 for Sound Level Meters.
LO ： 30dB~80dB Level ranges: Med ： 50dB~100dB Hi：80dB~130dB Auto：30dB~130dB Frequency 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.
Data output : USB data traffic Auto power off : Meter automatically shuts down after approx. 15 minutes of inactivity. Power supply : One 9V battery, 006P or NEDA1604 or IEC 6F22. Power life : About 30hours Operation temperature and humidity: 0℃~40℃,10％RH~90％RH Storage temperature and temperature: -10℃~+60℃，10％RH~75％RH Dimension : 278 (L) x 76 (W) x 50(H) mm Weight : 350g Accessories : Instruction manual, battery, screwdriver, ￠ 3.
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① Windscreen ② LCD： SYMBOL FUNCTION LCD 4 digits MAX Maximum hold MIN Minimum hold OVER over range UNDER under range 7
FAST Fast response SLOW Slow response dBA A-Weighting(responseto sense) dBC C-Weighting(response monitor) human to 88—180 Range indicate REC Recording data into computer AUTO Auto level range selection FULL Memory full HOLD Data hold function machine AutopoweroffPress the”SETUP“ button to disable power off Low battery indicate ③REC button 8
3.0 DATALOGGER function Press “REC” button after it power on, the display will show “REC” to start Data Recording，press the button again to delet the record (Note: In order to avoid data error, please don’t power it off under REC condition, when the REC function is deleted then it can power off).
Press the‘SETUP’button second time, the display showing： The display showing “minute” 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 ‘LEVEL’ to make the adjustment，press‘HOLD’to keep the setup； Press the‘SETUP’button fourth time, the display showing The display showing “date” adjustment mode, press ‘LEVEL’ to make the adjustment，press‘HOLD’to keep 10
the setup； Press the‘SETUP’button fifth time, the display showing： The display showing “month” adjustment mode, press ‘LEVEL’ to make the adjustment，press ‘HOLD’ to keep the 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 and eighth time, the 11
display showing separately as following： The display showing default range, which can’t be adjusted. Press the‘SETUP’button ninth time, the display showing： The display showing initialization of the time chip，time and date have returned to factory setup. When the battery is exhausted or replaced, if the time can’t be adjusted then please initialize the time chip first.
software COM3（COM4），then press ‘SETUP’，‘’ disappears from the display to indicate and disable auto power off, that the USB data is transmitting. ⑤ FAST/SLOW button: time weighting selection FAST：Fast sampling measurement, 1 time per 125mS. SLOW：Slow sampling measurement, 1 time per second. ⑥MAX/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.
⑦ LEVEL button: Level range selection Each time you press “LEVEL” button, the level range will change between ‘Lo’ level, ‘Med’ level, ‘Hi’ level and ‘Auto’ level in the circular. ⑧ Backlight button Turn the backlight on/off ⑨ Frequency weighting select button A：A-Weighting C：C-Weighting ⑩ HOLD button: Press “HOLD” button, The hold function freezes the reading in the display. ⑾Power button Turn the meter power ON/OFF ⑿External DC 9V power supply terminal For connection with DC 9V power supply.
Aperture size: external diameter: 3.5mm, internal diameter: 1.35mm USB interface USB signal output is a 9600 bps serial interface. ⒁ AC/DC signal output earphone outlet DC AC：Output voltage：1Vrms corresponding to each range step.
⒂ Calibration potentiometer（CALL） For external standard level calibration adjustments. Tripod mounting screw Battery cover Microphone 1/2 inch Electret Condenser microphone 5. CALIBRATION PROCEDURES ①Make the following switch settings: Frequency weighting: A-weighting Time weighting: FAST Level range: 50 ~100dB ②Insert the microphone housing carefully into the 1/2 inch insertion hole of the calibrator（94dB @ 1KHZ）. ③Turn on the switch of calibrator and adjust the CALL potentiometer of the unit 94.
NOTE: All products are well calibrated before shipment. Recommended recalibration cycle: 1 year. Acoust i c Cal i br at or 6. MEASUREMENT PREPARATION ① Remove the battery cover on the back and put in one 9V battery. ② Recover the back cover. ③ When battery voltage drops below the operating voltage or battery aging, this symbol will appear on LCD. Replace the 9V battery.
the adapter （3.5φ） into the DC 9V connector on the side panel. 7. OPERATING PROCEDURE ① Power on the meter. ② Press ‘LEVEL’ button to select desired level, base on ‘UNDER’ or ‘OVER’ do not appear on LCD. ③ Select ‘dBA’ for general noise sound level and ‘dBC’ for measuring sound level of acoustic material. ④ Select ‘FAST’ for instant sound and ‘SLOW’ for average sound level. ⑤ Select ‘MAX/MIN’ button for measuring maximum and minimum noise level.
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 mount the windscreen to not pick up undesirable signals. iv. Keep microphone dry and avoid severe vibration. 9. accessories: ① installation CD ② USB interface cable ③ screwdriver ④ tripod ⑤ windscreen ⑥ DC 9V power supply. 10. Installing the software 1.0 Start windows 1.1 Insert the CD into the CD-drive.
1.2 Run SETUP.EXE installation program in file DISK1, install it to the referred directory 1.3 install CP2102 drive software： Connecting the meter with the computer by USB interface, install CP2102 drive software in my computer property:\hardware\facility management\ COM CP210X USB. USB Drive Installation 1. Copy the CP2101WIN Drivers to a certain directory, such as: C:\ 2. Connect the USB to the computer, the Windows system will show finding a new hardware.
computer by USB, then search for the COMX port occupied by CP210X， press button，the‘ ’ symbol will not appear on the display，which indicate the meter is transmitting data to the computer. 1.5 Enter the 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 connection is in order.
