SD Card real time data logger

SOUND LEVEL METER

Model : SL-4023SD

FEATURES

* Main functions are designed to meet IEC 61672 class 2.

* A & C weighting networks comply with standards.

* 0.5" standard microphone head.

* Time weighting (Fast & Slow) dynamic characteristic

modes.

* Build External calibration VR.

* Auto range & Manual range selection.

* Available for external calibration adjustment.

* Condenser microphone for high accuracy & long-term

stability.

* Memory function to store the Max. & Min. value.

* Hold and Peak Hold functions.

* Real time SD memory card Datalogger, it Built-in Clock and Calendar, real time data recorder, sampling time set from 1 second to 3600 seconds.

* Manual datalogger is available ( set the sampling time to 0 second ), during execute the manual datalogger function, it can set the different position ( location ) No.

( position 1 to position 99 ).

* Innovation and easy operation, computer is not need to setup extra software, after execute datalogger, just take away the SD card from the meter and plug in the SD card into the computer, it can down load the all the measured value with the time information ( year/month/date/ hour/minute/second ) to the Excel directly, then user can make the further data or graphic analysis by themselves.

* SD card capacity : 1 GB to 16 GB.

* LCD with green light backlight, easy reading.

* Can default auto power off or manual power off.

* Data hold, record max. and min. reading.

* Microcomputer circuit, high accuracy.

* Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter.

* RS232/USB PC COMPUTER interface.

* Heavy duty & compact housing case.

Memory Card

Advanced setting

Time weighting

(Fast & Slow)

Fast - t= 200 ms

* "Fast" range is simulated the human ear

response time weighting.

Slow - t = 500 ms

* "Slow" range is easy to get the average

values of vibration sound level.

Range selector Auto range : 30 to 130 dB.

Manual range :

Frequency

Microphone type

Microphone size

Calibration VR

3 range, 30 to 80 dB, 50 to 100 dB,

80 to 130 dB, 50 dB on each step, with over & under range indicating.

31.5 to 8,000 Hz.

Electric condenser microphone.

Out size, 12.7 mm DIA. ( 1/2 inch).

Calibrator

Datalogger

Sampling Time

Setting range

Build in external calibration VR, easy to calibrate on 94 dB level by screw driver.

* Calibrated via external SOUND

CALIBRATOR ( SC-941, optional ).

B & K (Bruel & kjaer), MULTIFUCTION

ACOUSTIC CALIBRATOR 4226.

Auto 1 second to 3600 seconds

@ Sampling time can set to 1 second, but memory data may loss.

Manual Push the data logger button once will save data one time.

@ Set the sampling time to

0 second.

@ Manual mode, can also select the

1 to 99 position ( Location ) no.

SD memory card. 1 GB to 16 GB.

* Set clock time ( Year/Month/Date,

Hour/Minute/ Second )

* Decimal point of SD card setting

* Auto power OFF management

* Set beep Sound ON/OFF

GENERAL SPECIFICATIONS

Circuit Custom one-chip of microprocessor LSI

Display circuit.

LCD size : 52 mm x 38 mm

LCD with green backlight ( ON/OFF ).

30 - 130 dB.

Measurement

Range

Resolution

Function

0.1 dB.

dB ( A & C frequency weighting ),

Time weighting ( Fast, Slow ),

Accuracy

℃

Peak hold, Data hold

Record ( Max., Min. ).

Characteristics of " A " frequency weighting network meet IEC 61672 class 2.

Frequency

Weighting

Network

Data hold

Peak hold

Under 94 dB input signal, the accuracy are :

31.5 Hz ± 3.5 dB

63 Hz ± 2.5 dB

125 Hz ± 2.0 dB

250 Hz ± 1.9 dB

500 Hz ± 1.9 dB

1 K Hz ± 1.4 dB

2 K Hz ± 2.6 dB

4 K Hz ± 3.6 dB

8 K Hz ± 5.6 dB

Remark :

The above spec. are tested under the environment RF Field Strength less than 3 V/M & frequency less than 30

MHz only.

Characteristics of A & C.

A weighting :

The characteristic is simulated as "Human

Ear Listing" response. Typical, if making the environmental sound level measurement, always select to A weighting.

C weighting

The characteristic is near the "FLAT" response. Typical, it is suitable for checking the noise of machinery (Q.C.

check) & knowing the sound pressure level of the tested equipment.

To freeze the measurement value.

To keep the peak ( max. ) measurement value.

* Set sampling time

* SD memory card Format

Over Indication Show " - - - - ".

Data Hold Freeze the display reading.

Memory Recall Maximum & Minimum value.

Sampling Time Approx. 1 second.

of Display

Data Output RS 232/USB PC computer interface.

Power off

* Connect the optional RS232 cable

UPCB-02 will get the RS232 plug.

* Connect the optional USB cable

USB-01 will get the USB plug.

Auto shut off saves battery life or manual off by push button.

Operating

Temperature

Operating

Humidity

Power Supply

Less than 85% R.H.

Power Current

Weight

Dimension

* AAlkaline or heavy duty DC 1.5 V battery

( UM3, AA ) x 6 PCs, or equivalent.

* ADC 9V adapter input. ( AC/DC power adapter is optional ).

Normal operation ( w/o SD card save data and LCD Backlight is OFF) :

Approx. DC 8.5 mA.

When SD card save the data but and

LCD Backlight is OFF) :

Approx. DC 30 mA.

* AIf LCD backlight on, the power consumption will increase approx.

14 mA.

489 g/1.08 LB.

245 x 68 x 45 mm.

( 9.6 x 2.7x 1.9 inch ).

* Instruction manual.......................1 PC Accessories

Included

Optional

Accessories

* Sound calibrator ( 94 dB ), SC-941.

* Sound calibrator ( 94/114 dB ), SC-942.

* Sound wind shield ball, SB-01

* SD Card ( 1 GB )

* SD Card ( 2 GB )

* USB cable, USB-01.

* RS232 cable, UPCB-02.

* Data Acquisition software,

SW-U801-WIN.

* AC to DC 9V adapter.

* Soft carrying case, CA-05A.

* Hard carrying case, CA-06.

* Appearance and specifications listed in this brochure are subject to change without notice.

MRC.VER.01-2.11