Product Includes:
Li-Ion battery – 3 x AA batteries coupling device – Windscreen
● Transport case
● USB charger – adapter
● Calibration certificate
● USB transfer cable
● User manual
● LDB23 software
Technical features
Accuracy : Class 2 – NF EN 61672-1
Microphone type : Electret – ½” – Sensibility : 45 mV/Pa
Measuring type : Free field
Measurement dynamic : Lp / Leq : 107 dB – Lpk : 57 dB
Single dynamic range Lp and Leq / Lpk : 30-137 dBA / 35-137 dBC (Z) /
83-140 dBC (Z) – Leq : 25-137dB (filters by octave bands 31.5 Hz-8 kHz)
X frequency weightings : A – C – Z
Multi-spectrum frequency analysis : Real time filters by octave bands :
31.5 Hz // 8 kHz – 1/3 octave optional bands : 25 Hz // 10 kHz
Y frequency weightings : F (fast) – S (slow) – I (impulse) – U (peak)
Logging time for short Leq (DI) : 1/16s – 1/8s – 1/4s – 1/2s – 1s to 60 s
(step of 1 s)
Sound level meter : NF EN 61672-1 (2002) – NF EN 60651 (1979) – NF EN 60804 (2000) – CEI 61260
CE conformity : EN 61010 – EN 61000 generic and as per product standard
Metrology
Sound level meter
Preamplifier ………………………………………………………. removable – extensions of 3 – 5 – 10 m on request
Screen……………………………………………………………….. graphical display 240 x 160 pixels – LCD monochrome 16 levels – digital and analogue
display – 3D effect on display
Keypad………………………………………………………………. 8 sensitive keys
Clock ………………………………………………………………… permanent, saved by internal battery – accuracy better than 0.005%
Memory module ………………………………………………… removable Micro SD card 2Go
Environment………………………………………………………. from -10 °C to +50 °C
Humidity……………………………………………………………..from 0 to 90% RH
Size (L x l x e)…………………………………………………….. 270 x 70 x 40 mm
Weight (batteries included)…………………………………. 355 gr
Fixing………………………………………………………………… Insert at rear for fixing on tripod
Operating
● Extensions for preamplifier : 3 – 5 – 10 m
● Tripod
● Acoustic calibrator class 1 (NF EN 60942:2003) type :
CAL300
● Jack cables for I/O interface
● LDB300 : specific software for the industry,
environment for elaborated data processing
I/O interface :
DC output : 0-10 V / 0-137 dB
Output for alarm activation : TTL level 3.3 V
Measurement start by electrical order : 0-5 V DC max
Measurement launching
By keypad or I/O mode
Power supply – Autonomy
Rechargeable Li-Ion battery : minimum autonomy : 24 hours at 20 °C
– 3 AA alkaline batteries can be also used (the autonomy is reduced) –
mains adapter.
Guarantee : 2 years
Measurement modes : conventional and start/stop integrator –
integrating analyser with storage – NR comfort criteria – S1 + S2
calculator
Storage and measurement capacity :
– Lp-Leq start/stop mode : unlimited
– Leq with storage mode : according to the elementary logging time
(from 1/16e s to 60s)
– Memory capacity with frequency analysis by full octave bands :
● Base Leq 1 s : 135 days to share from 1 to 999 periods.
● Base Leq 1/16° s : 8 days to share from 1 to 999 periods.
Audi recordings on threshold
Recording on detection of LXeq or LCpk programmable levels –
Sampling : 12 kHz – 16 bits : total duration of recording : 45 mn – file
format : *.wav
Measured values : LXY – LXYmax – LXYmin – LXeq,T –
LXeq,DI – LXE – LXeq,DImax – LXeq,DImin
Statistic indices LXN on LAeq and LCeq samples : L01 –
L10 – L50 – L90 – L95 – resolution 1 dB. Others on LDB23
software.
Simultaneous measured values : All according to LXY
conventional mode or LXeq integrator mode.
Detection and percentage of overload : Graphic alarm and
calculation of percentage during the storage.
Be the first to review “Sound level meter”