SD Card real time data logger
SOUND LEVEL METER
Model : SL-4023SD
FEATURES
* Main functions are designed to meet IEC 61672 class 2. Time Fast - t= 200 ms
* A & C weighting networks comply with standards. weighting * "Fast" range is simulated the human ear
* 0.5" standard microphone head. (Fast & Slow) response time weighting.
* Time weighting (Fast & Slow) dynamic characteristic Slow - t = 500 ms
modes. * "Slow" range is easy to get the average
* Build External calibration VR. values of vibration sound level.
* Auto range & Manual range selection. Range selector Auto range : 30 to 130 dB.
* Available for external calibration adjustment. Manual range :
* Condenser microphone for high accuracy & long-term 3 range, 30 to 80 dB, 50 to 100 dB,
stability. 80 to 130 dB, 50 dB on each step,
* Memory function to store the Max. & Min. value. with over & under range indicating.
* Hold and Peak Hold functions. Frequency 31.5 to 8,000 Hz.
* Real time SD memory card Datalogger, it Built-in Clock Microphone Electric condenser microphone.
and Calendar, real time data recorder, sampling time set type
from 1 second to 3600 seconds. Microphone Out size, 12.7 mm DIA. ( 1/2 inch).
* Manual datalogger is available ( set the sampling size
time to 0 second ), during execute the manual datalogger Calibration VR Build in external calibration VR, easy to
function, it can set the different position ( location ) No. calibrate on 94 dB level by screw driver.
( position 1 to position 99 ). * Calibrated via external SOUND
* Innovation and easy operation, computer is not need to CALIBRATOR ( SC-941, optional ).
setup extra software, after execute datalogger, just take Calibrator B & K (Bruel & kjaer), MULTIFUCTION
away the SD card from the meter and plug in the SD card ACOUSTIC CALIBRATOR 4226.
into the computer, it can down load the all the measured Datalogger Auto 1 second to 3600 seconds
value with the time information ( year/month/date/ Sampling Time @ Sampling time can set to 1 second,
hour/minute/second ) to the Excel directly, then user can Setting range but memory data may loss.
make the further data or graphic analysis by themselves. Manual Push the data logger button
* SD card capacity : 1 GB to 16 GB. once will save data one time.
* LCD with green light backlight, easy reading. @ Set the sampling time to
* Can default auto power off or manual power off. 0 second.
* Data hold, record max. and min. reading. @ Manual mode, can also select the
* Microcomputer circuit, high accuracy. 1 to 99 position ( Location ) no.
* Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter. Memory Card SD memory card. 1 GB to 16 GB.
* RS232/USB PC COMPUTER interface. Advanced * Set clock time ( Year/Month/Date,
* Heavy duty & compact housing case. setting Hour/Minute/ Second )
* Decimal point of SD card setting
GENERAL SPECIFICATIONS * Auto power OFF management
Circuit Custom one-chip of microprocessor LSI * Set beep Sound ON/OFF
circuit. * Set sampling time
Display LCD size : 52 mm x 38 mm * SD memory card Format
LCD with green backlight ( ON/OFF ). Over Indication Show " - - - - ".
Measurement 30 - 130 dB. Data Hold Freeze the display reading.
Range Memory Recall Maximum & Minimum value.
Resolution 0.1 dB. Sampling Time Approx. 1 second.
Function dB ( A & C frequency weighting ), of Display
Time weighting ( Fast, Slow ), Data Output RS 232/USB PC computer interface.
Peak hold, Data hold * Connect the optional RS232 cable
Record ( Max., Min. ). UPCB-02 will get the RS232 plug.
Accuracy Characteristics of " A " frequency * Connect the optional USB cable
(23 ± 5 ℃) weighting network meet IEC 61672 USB-01 will get the USB plug.
class 2. AC output AC 0.5 Vrms corresponding to each
range step.
Under 94 dB input signal, the accuracy * Output impedance : 600 ohm.
are : Power off Auto shut off saves battery life or
31.5Hz ± 3.5 dB manual off by push button.
63 Hz ± 2.5 dB Operating 0 to 50 ℃.
125 Hz ± 2.0 dB Temperature
250 Hz ± 1.9 dB Operating Less than 85% R.H.
500 Hz ± 1.9 dB Humidity
1 K Hz ± 1.4 dB Power Supply * AAlkaline or heavy duty DC 1.5 V battery
2 K Hz ± 2.6 dB ( UM3, AA ) x 6 PCs, or equivalent.
4 K Hz ± 3.6 dB * ADC 9V adapter input. ( AC/DC power
8 K Hz ± 5.6 dB adapter is optional ).
Power Current Normal operation ( w/o SD card save
Remark : data and LCD Backlight is OFF) :
The above spec. are tested under the Approx. DC 8.5 mA.
environment RF Field Strength less When SD card save the data but and
than 3 V/M & frequency less than 30 LCD Backlight is OFF) :
MHz only. Approx. DC 30 mA.
* AIf LCD backlight on, the power
Frequency Characteristics of A & C. consumption will increase approx.
Weighting 14 mA.
Network A weighting : Weight 489 g/1.08 LB.
The characteristic is simulated as "Human Dimension 245 x 68 x 45 mm.
Ear Listing" response. Typical, if making ( 9.6 x 2.7x 1.9 inch ).
the environmental sound level Accessories * Instruction manual....................... 1 PC
measurement, always select to A Included
weighting. Optional * Sound calibrator ( 94 dB ), SC-941.
Accessories * Sound calibrator ( 94/114 dB ), SC-942.
C weighting * Sound wind shield ball, SB-01
The characteristic is near the "FLAT" * SD Card ( 1 GB )
response. Typical, it is suitable for * SD Card ( 2 GB )
checking the noise of machinery (Q.C. * USB cable, USB-01.
check) & knowing the sound pressure * RS232 cable, UPCB-02.
level of the tested equipment. * Data Acquisition software,
Data hold To freeze the measurement value. SW-U801-WIN.
Peak hold To keep the peak ( max. ) measurement * AC to DC 9V adapter.
value. * Soft carrying case, CA-05A.
* Hard carrying case, CA-06.
PATENT CHINA : ZL 2008 2 0189918.5 ZL 2008 2 0189917.0 TAIWAN : M 358970 M 359043
Germany : Nr. 20 2008 016 337.4 JAPAN : 3151214 U.S.A. : Pending
