Precision sound level meter-LD-SoundExpert LxT
- Integrating precision sound level meter of class 1,
- Octave and octave bands
- 2 GB of internal, nonvolatile memory,
- Data recording with selectable parameters and adjustable sampling rate,
- Measurement history serves as a second additional data logger next to the time course of the reading,
- LCD and LED-backlit display,
- USB communication
- With METAS, PTB approval class 1
| specifications | |||
|---|---|---|---|
| basic data | |||
| Averaging (integration method) | Linear or exponential | ||
| RMS-term review | Slow, fast or pulse | ||
| RMS Frequency | A, C or Z | ||
| Peak Frequency | A, C or Z | ||
| sampling rate | 51,200 Hz | ||
| Peak rise time | ≤30 µs | ||
| Field level error (OBA) | ≤± 0.1 dB | ||
| conformity | ANSI Type 1, IEC Class 1 | ||
| areas | Single of the broadband, two areas for OBA | ||
| Max. Time deviation at 25 ° C | <2.6 s per day | ||
| Octave and Terzbandfilter | |||
| Octave Band Filters | 8 ... 16,000 Hz | ||
| Terzbandfilter | 6.3 ... 20,000 Hz | ||
| Filter selection | Without octave filter, third octave filters or octave and third octave filters | ||
| frequency | A, C or Z (unweighted) | ||
| Maximum spectrum | Maximum in each band or broadband L max | ||
| conformity | ANSI Type 1, IEC Class 1 | ||
| Recording and measurement history | |||
| recording time | 1 s ... 24 h | ||
| Recorded parameters | L eq , L max , L min , LC Seq - LA Seq , LA leq - La eq , octave band OBA L eq , L max , L min , Terzband OBA L eq , L max , L min , LA FTm5 , battery voltage, internal temperature | ||
| Duration of the measurement history (contin. Berieb) | 1 min ... 24 h | ||
| Parameters of measurement history | L eq , L min with time, L max with time, L peak with time-out timer with duration, LA eq , LC eq , octave band OBA L eq , L max , L min , Terzband OBA L eq , L max , L min | ||
| Urban planning Noise | |||
| measured parameters | LDEN, LDN | ||
| Day, evening, night | Programmable | ||
| Evening and night penalty | Programmable | ||
| Time-averaged values ??of the integration time | |||
| minimum | 1 s | ||
| Maximum (error / lt; 0.5 dB) | <23 days | ||
| In percentiles | |||
| Number of custom Ln | 6 | ||
| In resolution | 0.01% | ||
| Resolution of the distribution table | 0.1 dB | ||
| Marker for different types of noise | |||
| Number of markers | 10 | ||
| predefined marker | 5 | ||
| Measuring modes | |||
| existing modes | Manual stop, timed stop, stop if stable, continuous, single-block timing, daily block timing | ||
| manual stop | Defined measurement operation / stop button | ||
| Timed stop | Time in hh: mm: ss | ||
| Stop if stable | Change <xx, x dB for hh: mm: ss | ||
| continuous | Auto. File storage 1x, 2x, 4x, 6x, 12x, 24x, 48x, 96x, 144x per day | ||
| Single block timing | Start: date and time, end date and time | ||
| Day Block Timing | Up to 3 blocks with each start and end dates, blocks the dateline may exceed | ||
| AC / DC output | |||
| connection | 2.5 mm stereo | ||
| AC output - maximum voltage | ± 2.3 V pk | ||
| AC output - Recommended load | ?16 ? | ||
| DC output - Resolution | 10 mV / dB (0 ... 100 dB) | ||
| DC output - term review | Follows the adjustment of the sound level meter (F, S, I) | ||
| DC output - Frequency | Follows the adjustment of the sound level meter (A, C, Z) | ||
| Dynamic range (typical) | |||
| A rating | 17 ... 118 dB | ||
| C-Rating | 19 ... 118 dB | ||
| Z Review | 24 ... 118 dB | ||
| power supply | |||
| batteries | 4 AA (LR6) 1.5 V, lithium or alkali | ||
| External power supply | 5 V via USB port | ||
| AC power supply | PSA029 (worldwide) | ||
| 12 V power supply (optional) | PSA031 - 12 V DC to 5 V DC | ||
| continuous operation | Typically 18 h with alkaline batteries | ||
| continuous operation | Typically 30 hours with lithium batteries | ||
| continuous operation | Up to 19 days battery pack BAT015 (optional) | ||
| measures and weight | |||
| Length (complete) | 29.2 cm | ||
| Length (housing of the measuring instrument) | 23.4 cm | ||
| width | 7,1 cm | ||
| depth | 4,1 cm | ||
| Weight (including batteries) | 471 grams | ||
| Weight (with batteries, microphone and preamplifier) | 513 grams | ||
| Max. Cable length for preamplifier | 61 m | ||
| protection | IP54 | ||
| Surroundings | |||
| temperature sensitivity | ? ± 0.5 dB, -10 ... 50 ° C | ||
| storage temperature | -30 ... 60 ° C | ||
| moisture sensitivity | ? ± 0.5 dB, 30 ... 95% RH at 40 ° C | ||
| Sound Expert lxd - Standards | |||
| standards | ANSI S1.4-1985 (R2001): specifications for Type 1 sound level meters ANSI S1.43-1997 (2002): Specifications for Integrating type 1 sound level meters ANSI S1.11-2004: Specifications for octave and third octave analog filter and digital filter, type 1 IEC 61672-1: 2002: class 1 sound level meter IEC 61260: 2001: octave and Terzbandfilter, class 1 IEC 60651: 2001: sound Level meter IEC 60804: 2000: Integrating sound level meters IEC 61010-1: 2001 Ed 2.0 : safety requirements for electrical equipment for measurement, control and laboratory use, part 1: General requirements IEC 61326-1: 2005: electrical equipment for measurement, control and laboratory use, EMC requirements CE directive 2004/108 / EC | ||
| included supply | ||
|---|---|---|
| PRMLxT1L | Microphone Preamplifier | (1) |
| 377B02 | Prepolarised free-field microphone capsule | (1) |
| PSA029 | Universal AC power supply | (1) |
| CBL138 | USB cable, 2 m | (1) |
| batteries | Alkaline batteries (AA) | (4) |
| WS001 | Windshield (90 mm), 1/2 "microphone | (1) |
LD-SoundExpert LxT
