Summary of Sound level meter
Page 1
Sound level meter instruction manual rec fast a/c.
Page 2: Safety Information
2 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°c maintenance & ...
Page 3: 3. Specification
3 fast & slow response analog ac/dc outputs for connection to frequency analyzer or x-y shaft recorder 3. Specification standard applied: iec61672 -1 class2 accuracy:±1.4db frequency range:31.5hz ~ 8khz dynamic range:50db memory:32700 level ranges: lo:30db~80db med:50db~100db hi:80db~130db auto:30db...
Page 4: Power Life: About 30Hours
4 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°c~40°c,10％rh~90％rh storage temperature and temperature: -10°c ~+60°c，10％rh~75％rh dimensi...
Page 5: ③Rec Button
5 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 ...
Page 6: 3.2 Data Zero Function
6 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 exit 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). ...
Page 7
7 show the date as following: 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...
Page 8
8 the display showing “date” adjustment mode, press „level‟ to make the adjustment，press‟hold‟to keep 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...
Page 9: ⑤ Fast/slow Button:
9 4.1. Usb communications setting: turn on the meter, connect the meter with the computer correctly, choose the software com3（com4）,hen press „etup‟ , „ „ disappears from the display to indicate and disable auto power off, that the usb data is transmitting. ⑤ fast/slow button: time weighting selecti...
Page 10: Backlight Button
10 ⑧ backlight button 8.0．turn the backlight on/off 8.1．datalogger response setting; press the button continuously until‘int’symbol appears after the meter turn on, press‘level’to set up the data memory response, then press‘hold’to keep the setting. ⑨ frequency weighting select button a：a-weighting ...
Page 11: ⒄ Battery Cover
11 ⒀ usb interface usb signal output is a 9600 bps serial interface. ⒁ ac/dc signal output earphone outlet output ground output ac dc ac: output voltage: 1vrms corresponding to each range step. Output impedance: 100Ω dc: output voltage: 10mv/db output impedance: 1k Ω ⒂ calibration potentiometer（call...
Page 12: 5. Calibration Procedures
12 5. Calibration procedures ① make the following switch settings: frequency weighting: a-weighting time weighting: fast level range: 50 ~100db ② insert the microphone housing carefully into the 1/2 inch insertion hole of the calibrator（94db @ 1khz）. ③ turn on the switch of calibrator and adjust the...
Page 13: 8. Notice
13 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‟ or measuring sound level of acoustic material. ④ select „fast‟ for instant sound and „slow‟ for avera...
Page 14: Usb Drive Installation
14 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 cp210x drive software： connecting the meter with the computer by usb interface, install cp2102 drive software i...
Page 15
15 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 onnection is in order..