Keterangan :

EXTECH Integrating Sound Level Datalogger 407780

Features:
Meets ANSI and IEC 651 Type 2 standards
30 to 130dB measurement range with ± 1.5dB accuracy
Datalogging function records up to 32, 000 records
Programmable integrating time, real time calendar/ clock
Display modes: SPL, SEL, Lmax/ Lmin and Leq
Linearity over wide range ( 100dB)
Includes RS-232 serial cable and Windows compatible software
Specifications
Applicable Standards : IEC 651 And 804 Type 2, ANSI S1.4 Type 2
Accurancy : ± 1.5dB ( ref 94dB@ 1KHz)
Resolution : 0.1dB
Digital display : 4 digital LCD
Measurement Parameters : SPL, Leq, SEL, Maxl, Minl
Measurement Range : 30dB to 130dB
Linearity Range : 100dB
Measurement Frequency range : 31.5Hz 8KHz
Frequency Weighting : A and C
Response : Imulse, Fast and Slow
Microphone : 1/ 2" Electret condeser microphone
Sampling time : update every 0.5s
Bargraph : 4dB steps, 100dB range, 100ms update
Display Warning Function :
Overrange indicator : diplayed at the upper limit
underrange indicator : Dispalyed at the lower limit
Power supply : 2Vrms( at full scale) , optional AC adapter
Battery life : Approximately 20 hours
Dimensions : 10.4× 2.8× 0.8" ( 265× 72× 21mm)
Weight : 10.9oz ( 310g)