Precision integrating sound level meter to IEC type 1 (class 1) specification, with NATA calibration. Fitted with internal Compact Flash Card reader and supplied with NC-74 field calibrator.
Frequency range 20~20,000Hz with weightings A, C, and flat. Time weightings fast, slow and impulse. Measurement range (A) 28~138dB. Broadband measurement functions Lp (SPL), Leq, Lmax/min, Lae, Lx, and selectable auxiliary functions with manual or auto storage [logging]. Measurement time (Leq) from 10s to 200h. Inbuilt memory for up to 100 data sets, or to limit of fitted CF card using manual or auto storage. AC or dc outputs, RS232C interface and cable CC-93 for serial printer. Supplied with NX-22RT card for real time 1/1 and 1/3 octave analysis and display, for measurement functions Lp, Leq, LE, Lmax and display of AP (all-pass) AP(A) and 1/1 or 1/3 octave values as selected, with manual data storage only to NX-22RT card. Download of card-data to PC requires flashcard reader. Alkaline batteries (24h operation) or AC adaptor.