| Broadband Measured Parameters |
Instantaneous level, Lxy, maximum level Lxymx, minimum level Lxymn, peak level Lxpk, average level (Q=3) Lxeq, average level (Q=4) Lavg, average level (Q=5) Lavg, takmaximal levels Ltm3 & Ltm6, exposure level LxE |
| Acoustic Accuracy |
ANSI S1.4 (R1997) type 1 & type 2, ANSI S1.43, IEC 61672:2002, IEC 60651:1994, IEC 60804:2000 |
| Broadband Frequency Weightings |
'A', 'C' and 'Z' (linear, un-weighted, all pass level) simultaneously |
| Frequency Response (Hz) |
6.3 Hz to 30 kHz for -3 dB down points |
| Time Weightings (Response) |
Slow and Fast for rms |
| Peak Frequency Weighting |
'A', 'C' or 'Z' separate from rms weighting |
| Dynamic Range for Display |
120 dB |
| Noise Floor (dB) |
16.5 'A' weighted, 19.7 'C', 23.4 'Z' weighted |
| Maximum Noise Level (dB) |
140 dB rms, 143 dB peak |
| Resolution (dB) |
0.1 dB across whole measurement range |
| DSP Sampling Rate (Hz) |
72.30 0 Hz sampling with true rms. values calculated digitally |
| Memory Storage Capability |
100 complete runs each with the overall values of all parameters selected in the setup (maximum of 9 per run plus start date & time) |
| Storage Methods |
Manually controlled by user via keypad Start & Stop keys |
| Duration for Measurement |
Variable up to 24 hours maximum per run controlled by user |
| Calibration Method |
Automatic detection of calibrator on microphone for both 1 kHz & 240 Hz frequency operation. Meter set to user pre entered calibrator dB level, date, time and level of selected calibration is stored in meter |
| Configurations Saved in Memory |
3 factory defaults plus 2 user configured setups using optional dB30 software |
| Analog Outputs |
AC signal 0.5 V rms at 98 dB with 22 komega impedance (plus optional log DC output 0 to 2 V for 0 to 140 dB at 14.28 mV/dB) |
| Digital Output |
Download of stored data to PC or remote control of operation of meter via dB30 software via RS-232 port at 19200 baud maximum |
| Keypad Control |
6 individual keys with auto backlight operation on key press |
| Screen Languages for Display |
English, French, German, Italian, Spanish menu selectable |
| LCD Screen Display |
128 x 64 pixel monochrome backlight display with icon indicators can show up to 9 parameters simultaneously on screen using up/down scroll keys |
| Battery |
4 AA alkaline cells, 15 hours typical life or 12 VDC at 150 mA nominal via 2.1 mm power connector |
| Dimensions |
13.4" x 4" x 1.5" |
| Weight |
19.3 ounces |