Technical Data XL 2

Standarts:

Germany: » DIN 15905-5, DIN 45657:2014, DIN 45657:2005, DIN 45645-2

» DIN 45645-1• International IEC standards are adopted as European standards and the letters IEC are replaced by EN.

Weighting:

Frequency weighting: A, C, Z (simultaneous) • Time weighting: (simultaneous) » Fast, Slow » Impulse (optional with Extended Acoustic Pack)

Level Details:

Measurement bandwidth (–3 dB): 4.4 Hz – 23.0 kHz,  Level resolution: 0.1 dB, • Internal noise: 1.3 μV A-Weighted, XLR balanced.

Phantom power: +48 VDC switchable with maximum 10 mA supply current in accordance with IEC 61938

» Automated sensor detection for NTi Audio’s ASD measurement microphones and pre-amplifiers, • RCA unbalanced,

• Built-in condenser microphone for polarity testing, delay measurements and voice note recording.

Measurements:

SPL actual, Lmin, Lmax, Lpeak, Leq, Lp, Gliding LAeq and LCeq with selectable time window from one second to one hour, (=running Lxeq or sliding Lxeq with x = A or C)

• All measurement results simultaneously available

• Correction value measurement wizard based on LAeq, LCeq and LCpeak

• Noise exposure level LEX with post-processing, • Logging all data or subsets in selectable intervals

• Recording of voice notes

• Monitoring of sound levels that exceed limits

• Digital I/O interface for external peripherals control

Real-Time Analyzer (RTA):

• Conforms with class 1 of IEC 61260:2014 and ANSI S1.11-2014

• 1/1 octave band display: 8 Hz – 16 kHz, sub ranges 8 Hz – 4 kHz or 31.5 Hz – 16 kHz

• 1/3 octave band display: 6.3 Hz – 20 kHz, sub ranges 6.3 Hz – 8 kHz or 20 Hz – 20 kHz

• Level resolution: 0.1 dB

• Measurement Units: Volt, dBu, dBV and dBSPL

• Band pass filters (base 10) conform with class 1 of IEC 61260:2014 and ANSI S1.11-2014

» 1/1 octave spectrum: > 16 Hz band

» 1/3 octave spectrum: > 16 Hz band

• Broadband A/Z levels simultaneously, • Frequency weighting: X-Curve @ 500 seats in accordance with SMPTE ST 202:2010 and ISO 2969:2015 (not available for XL2-TA)

• Capturing of a single reading into the internal memory for comparative measurements

Audio Outputs

• Built-in speaker, • Headphone connector » 3.5 mm Minijack, » mono monitor wired to both channels of stereojack

» Linear output signal over a measurement range of 57 dB in SLMeter measurement function

» Maximum output level: 0.33 Vrms / 0.47 Vp

USB Interface, USB mini connector for data transfer to PC, XL2, Projector PRO and/or charging of Li-Po battery

Digital I/O Connection interface to accessories

• XL2 Input Keypad, • Limit Light, • Stack Light, • Digital I/O Adapter PCB, TOSLink 24 bit linear PCM audio signal output (prepared for later firmware extension)

Memory SD Card included (8 GByte), removable, storing measurement data in ASCII format, screen shots, voice notes and wav-files

Data logging every second offers following noise monitoring periods:

• Logging default noise levels: > 2 years

• Additional logging of 1/3 octave data: > 6 month

• Additional » compressed audio recording: > 1 week, » linear audio recording: > 15 hours

• USB-Power Supply » for short-term operation < 1 day

» charging power is equal or less than power consumption

External battery pack

» 22 Ah battery pack: 4 days

» 44 Ah battery pack: 8 days

General

Clock • Default, » Real-time clock with lithium backup battery, » Typical life backup battery: 8 years, » Return instrument for battery replacement

» Drift < 1.7 seconds per 24 hours

Mechanics • Tripod or microphone stand mount 1/4”

• Wire stand mounted on rear side

• Display: 160 x 160 pixels grey scale with LED back light

• Dimensions (L x W x H), » 180 mm x 90 mm x 45 mm, » 7.1” x 3.5” x 1.8”

• Weight: 480 g (1 lb) including built-in Li-Po battery

Temperature –10 °C to +50 °C (14° to 122°F), Humidity 5% to 90% RH, non-condensing

Static air pressure, 65 kPa to 108 kPa

Susceptibility to radio frequencies Classification Group X, Electromagnetic Compatibility, CE compliant: EN 61326-1 Class B, EN 55011 class B, EN 61000-4-2 to -6 & -11

Protection

Rating IP51

 

What you get:

-            Professionell Sound Analyzer Class 1 (0), NTI XL 2 (SN: A2A 17961 E0), Firmware: 4.84, without battery (everytime custom problems!),

-            Preamplifier NTX MA 220 (SN: 8583),

-            Microphon Capsule ACO 7052 H, DIN EN 61094-4 (SN: 38 226).

-            Precision sound calibrator Norsonic type 1251, Class 1, (114dB, 1kHz, SN: 20819, without battery.

-            Holder for Preamplifier,

-            Manual (english) and Anleitung (german) on USB Stick.

Everything works fine and is in very good conditions.