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SoundExpert LxT Sound Level Meter Larson Davis |
|
SoundExpert LxT Specifications |
|
Averaging ( Integration Method ) |
Linear or Exponential |
RMS Time Weighting |
Slow, Fast or Impulse |
RMS Frequency Weighting |
A, C or Z |
Peak Frequency Weighting |
A, C or Z |
Sample Rate |
51200 Hz |
Peak Rise Time |
≤ 30 µs |
Range Level Error ( OBA ) |
≤ ± 0.1 dB |
Compliance |
ANSI Type 1, IEC Class 1 |
Ranges |
Singel Range for Broadband |
2 ranges for OBA |
|
Max. Clock Drift at 77 °F ( 25 °C ) |
< 2.6 s per day |
1/1 and 1/3 Octave Filters |
|
1/1 Octave Filters |
8 Hz to 16 kHz |
1/3 Octave Filters |
6.3 Hz to 20 kHz |
Filter Selection |
None, 1/1, 1/3, or 1/1 & 1/3 |
Frequency Weighting |
A, C or Z ( unweighted ) |
Maximum Spectrum |
Maximum in each band or at broadband Lmax |
Compliance |
ANSI and IEC Class 1 |
Logging and Measurement History |
|
Logging Period |
1 s to 24 hr |
Logged Parameter |
User selectable from Leq; Lmax; Lmin; LCSeq – LASeq; LAIeq – Laeq; |
Measurement History Period |
1 min to 24 hr |
Measurement History Parameters |
Leq; Lmin w/time; Lmax w/time; Lpeak w/time; Ex- ceedance counts w/duration; LAeq, Lceq,1/1 OBA Leq, Lmax, Lmin; 1/3 OBA Leq,Lmax, Lmin |
Community Noise |
|
Measured Parameters |
LDEN, LDN |
Day, Evening, Night Times |
Programmable |
Evening and Night Penalty |
Programmable |
Time Averaged Level Integration Time |
|
Minimum |
1 s |
Maximum ( error < 0.5 dB ) |
> 23 days |
Ln Percentile |
|
Number of User Defined Ln’s |
6 |
Ln Resolution |
0.01 % |
Distribution Table Resolution |
0.1 Db |
Markers |
|
Number of Markers |
10 |
Predefined Markers |
5 |
Measurement Modes |
|
Available Modes |
Manual Stop, Timed Stop, Stop when Stable, Continu- ous, Single Block Timer, Daily Block Timer |
Manual Stop |
Measurement defined by run and stop button |
Timed Stop |
Time in hh:mm:ss |
Stop When Stable |
Change < xx.x dB for hh:mm:ss |
Continuous |
Auto file store 1, 2, 4, 6, 12, 24, 48, 96, 144 times per day |
Single Block Timer |
Start date and time to end date and time |
Daily Block Timer |
3 unique start/stop times per day, multiple days |
AC/DC Output |
|
Connector |
2.5 mm stereo |
AC Output Maximum Voltage |
± 2.3 V peak |
AC Output Recommended Load |
≥ 16 Ω |
DC Output Resolution |
10 mV/dB ( 0 to 100 dB ) |
DC Output Time Weighting |
Follows SLM Setting ( F, S, I ) |
DC Output Frequency Weighting |
Follows SLM Setting ( A, C, Z ) |
Dynamic Range ( typical ) |
|
A Weighted |
17 dB to 118 dB |
C Weighted |
19 dB to 118 dB |
Z Weighted |
24 dB to 118 dB |
Power |
|
Batteries |
4-AA ( LR6 ) 1.5 V Lithium or Alkaline |
External Power |
5 V from USB |
AC Power Supply |
PSA029 ( Worldwide ) |
12V Supply ( optional ) |
PSA031 – 12 VDC to 5 VDC |
Continuous Runtime |
18 hours Typical using Alkaline Batteries |
Continuous Runtime |
30 hours Typical using 1.5 V Lithium Batteries |
Continuous Runtime |
> 13 Days Typical using optional BAT015 |
Physical Characteristics |
|
Length ( overall ) |
11.4 in ( 29.0 cm ) |
Length ( instrument body only ) |
8.8 in ( 22.4 cm ) x 7.1 x 4.1 cm |
Width |
2.8 in ( 7.1 cm ) |
Depth |
1.6 in ( 4.1 cm ) |
Weight ( with batteries ) |
1.0 lb ( 471 g ) |
Weight ( with batteries, microphone and preamplifier ) |
1.1 lb ( 513 g ) |
Maximum Preamplifier Cable Length |
200 ft ( 61 m ) |
Ingress Protection Rating |
IP54 |
Environmental |
|
Temperature Sensitivity |
≤ ± 0.5 dB +14 to +122 °F ( -10 to +50 °C ) |
Storage Temperature |
-22 to +140 °F ( -30 to +60 °C ) |
Humidity Sensitivity |
≤ ± 0.5 dB, 30 % to 95 % RH at +104 °F ( +40 °C ) |