RS-232 Real Time Display Software for Window 95/98/2000
Frequency Weighting: A, C
4-Digit Display with updated cycle 0.5s
0.1dB resolution
Max/Min Hold Function
The standard Fast and Slow Time weightings
AC/DC signal output
Overload condition indication
Auxiliary output jack
IEC 651 Type II, ANSI S1.4 Type2.
Back screw hole tripod connection
External Power DC 9V input
Calibration Potentiometer easy to adjust
DSL 331 SPECIFICATIONS
Standard Applied: IEC651 Type 2, ANSI S1.4 Type 2
Frequency Range 31.5Hz ~ 8KHz
Measuring Level Range : 30 ~ 130dB
Frequency Weighting A/C
Microphone 1/2 inch electric condenser microphone Display
LCD Back Light Function
Digital Display 4 digits ,
Resolution: 0.1dB,
Display Update: 0.5 sec
Analog Display 50 segment Bar graph, Resolution,
Resolution: 1dB,
Display update: 50mS
Time Weighting FAST (125mS); SLOW(1 Sec)
LEVEL Range : Lo: 30 ~ 80dB ; Med: 50~ 100dB, Hi: 80~ 130dB; Auto Range : 30~ 130 dB
Accuracy: ±1.5dB (under reference condition at 94dB 1KHz)
Measuring Level Range : 30 ~ 130dB
Dynamic Range 100 dB
Over and Under range Indication Function 'OVER' is displayed, while input is more than upper limit of range. ; ' UNDER' is displayed, while input is less than lower limit of range.
MAX/MIN Hold
Hold Reading the Maximum and Minimum Value
AC Output 1V rms at FS (Full Scale), output impedance : Approx. 100 Ω
DC Output 10mV/dB, Output impedance approx. 1K Ω
Auto Power Off 30 minutes if no operation
GENERAL
Power Requirement: One piece 9V battery NEDA 1604
Power Life About 50 Hours (Alkaline battery)
AC Adapter (option)
Voltage 9VDC (8~ 15 V DC Max) ; Supply current : > 30mADC
