Technical data XL3

• XL3 and the M2340 / M2230 measurement microphone builds an integrating sound level meter with type approval class 1 according to IEC 61672 and ANSI S1.4.

• XL3 with M2340 / M2230 measuring microphone class 1 according to IEC 61672 and ANSI S1.4;

• XL3 with M2211 / M2215 measurement microphone class 1 frequency response according to IEC 61672 and ANSI S1.4.

The specifications given apply to operation with the microphone attached or detached.

• XL3 with M4261 measurement microphone class 2 according to IEC 61672 and ANSI S1.4.

• IEC 61672:2014, IEC 61672:2003, IEC 61260:2014, IEC 61260:2003, IEC 60651, IEC 60804;

• China: GB/T 3785:2010, GB/T 3241, GB 3096-2008, GB 50526, GB-T 4959;

• Germany: DIN 15905-5, DIN 45657:2014, DIN 45657:2005, DIN 45645-2, optional: DIN 45645-1;

• Japan: JIS C1509-1:2005, JIS C 1513 class 1, JIS C 1514 class 0;

• Switzerland: V-NISSG, NAO;

• UK: BS 4142:2014, BS 5969, BS 6698;

• USA: ANSI S1.4-2014, ANSI S1.43, ANSI S1.11-2014;

• International IEC standards have been adapted as European standards and the letters IEC have been replaced by EN. XL3 is compliant with these EN standards.

• Frequency weighting: A, C, Z (simultaneously);

• Time ratings: Fast, Slow, Impulse1Only available with Extended Noise Measurement Option (simultaneously).

• Measurement bandwidth (–3 dB): 4.4 Hz – 23.0 kHz;

• Level resolution: 0.1 dB;

• Intrinsic noise: 2.1 μV(Z).

• XL3 + M2340: 17.4 dB(A) – 138.3 dB @ 42 mV/Pa;

• XL3 + M2230: 17.1 dB(A) – 137.8 dB @ 42 mV/Pa;

• XL3 + M2215: 25 dB(A) – 153 dB @ 8 mV/Pa;

• XL3 + M2211: 21 dB(A) – 144 dB @ 20 mV/Pa;

• XL3 + M2914: 6.5 dB(A) – 103 dB @ 320 mV/Pa;

• XL3 + M4261: 27 dB(A) – 146 dB @ 16 mV/Pa.

• XL3 + M2340: 25 dB(A) – 138 dB | 28 dB(C) – 138 dB @ 42 mV/Pa;

• XL3 + M2230: 24 dB(A) – 137 dB | 27 dB(C) – 137 dB @ 42 mV/Pa;

• XL3 + M2215: 33 dB(A) – 153 dB @ 8 mV/Pa;

• XL3 + M2211: 29 dB(A) – 144 dB @ 20 mV/Pa;

• XL3 + M2914: 14 dB(A) – 103 dB @ 320 mV/Pa;

• XL3 + M4261: 33 dB(A) – 146 dB @ 16 mV/Pa.

< 10 s.

• Minimum: 1 second (default) or 100 ms (with Extended Noise Measurement option);

• Maximum: 24 hours.

• Frequency weighting A: 5.1 dBA;

• Frequency weighting C: 4.1 dBC;

• Frequency weighting Z: 8.0 dBZ.

• SPL actual, Leq, Lmin, Lmax, Lpeak, LE;

• Time weighting Fast, Slow;

• Broadband, 1/1 Octave and 1/3^rd Octave spectral view;

• Gliding LAeq and LCeq with selectable time window from 1 second to 1 hour;

• TaktMax according to DIN 45645-1;

• All measurement results are simultaneously available;

• Logging of all or data or subsets in selectable intervals ≥ 1 second;

• Wizard for measuring the correction values for live events of the levels LAeq, LCeq and LCpeak;

• Individual limit values for each sound level displayed;

• Recording of compressed audio;

• Digital I/O interface for controlling accessories.

• Time weighting Impulse;

• Level difference LAIeq – LAeq;

• Sound exposure level LAE;

• Time-graph view;

• Percentiles / levels of the level frequency distribution for broadband and spectral measurements
  Flexible setting from 0.1% to 99.9% with 7 values in parallel
  Sampling rate for Fast/Slow weighted values: every 1.3 ms
  Wideband: with 0.1 dB class bandwidth, based on Lxy sampling (x = A, C or Z, y = F, S or EQ1”)
  1/1 Octave band and 1/3^rd Octave band spectrum: in 1.0 dB class width, based on Lxy (x = A, C or Z / y = F or S);

• 100 ms logging of all or data or subsets;

• Recording of uncompressed audio.

• Conforms with ISO 3382 and ASTM E2235 based on Schroeder’s backwards integration;

• Octave bands results from 63 Hz - 8 kHz;

• Measurement parameters: T20, T30;

• Impulse and gated noise source;

• Automatic averaging for each position;

• Chart and table representation of results;

• Fixed minimum trigger level: 80 dB LAPK;

• Warning indicators according to ISO 3382;

• Range: 10 ms - 60 seconds;

• Minimum reverberation time (typical):

  • < 100 Hz: 0.3 second;

  • 100 - 200 Hz: 0.2 second;

  • > 200 Hz: 0.1 second.

Determination of airborne, impact and facade sound insulation on the instrument.

• Automated data averaging;

• Results as chart and table.

Airborne Sound Insulation:

• Sound Sources: Speaker.

• Standards:

  • ISO16283-1:2014;

  • ISO 717-1: 2021;

  • England/Wales: Approved Document E (2003).

• Results:

  • Dw | Dn,w | DnT,w | R'w;

  • Spectrum adaption terms C, Ctr;

Impact Sound Insulation:

• Sound Sources: Tapping Machine, Rubber Ball;

• Standards:

  • ISO16283-2:2018;

  • ISO 717-2:2020;

  • England/Wales: Approved Document E (2003).

• Results:

  • With Tapping Machine: L'n,w | L'nT,w;

  • With Rubber Ball: L'IA,Fmax | L'iA, Fmax,V,T;

  • Spectrum adaption terms CI.

• NTi Audio class 1 sound calibrator: M2340 / M2230 / M2215 / M2211: –0.10 dB;

• NTi Audio class 1 sound calibrator with 1/4" calibrator adapter, type: ADP 1/4-P:
  M4260: +0.10 dB;
  M4261: +0.20 dB.

• 50 mm windscreen: +0.03 dB;

• 90 mm windscreen: –0.04 dB;

• 150 mm windscreen: –0.04 dB;

• WP30: –0.03 dB.

• XLR balanced:

  • Input impedance 200 kΩ;

  • Phantom power: +48 V switchable; with maximum output current of 10 mA according to IEC 61938;

  • Automatic Sensor Detection (ASD) for NTi Audio measuring microphones and preamplifier MA230 / MA220;

• Internal speech microphone for recording voice memos.

• Built-in speaker;

• Headphone socket 3.5 mm stereo; output reference: @ SPL Level 114.0 dBSPL (calibrated microphone) = –12 dBu.

USB Host supporting the devices described below.

USB Device supporting MTP (file access from the PC) and Network (website access from the PC), as well as charging the Li-Ion battery.

Supported devices:

• USB-C to LAN adapter, NTi # 600 000 535;

• 4G/LTE gateways with RNDIS protocol;

• Mass storage like USB stick, SSD;

• Vaisala or LCJ Capteurs weather station (see below).

32 GB micro-SDHC card (default), replaceable, for storing measurement data in ASCII format, as well as audio data (WAV) and screenshots (PNG)

Supported formats: FAT32 and NTFS

• Rechargeable Li-Ion battery:

  • Typ. 3.6 V / 6'000 mAh;

  • Voltage range: 3.0 – 4.07 VDC (theXL3 limits the charging voltage to 4.05 VDC, and thus doubles the number of possible charging cycles);

  • Energy density = 339 Wh/l;

  • Typical battery life @ 25 °C (77 °F) with microphone M2340:
    with display active: >8 h;
    with display switched off: >12 h.

  • Operating temperature: –20 to +60 °C (–4 to +140 °F);

  • The XL3 switches OFF automatically as soon as either the battery charge level drops to 0%, or the temperature of the battery drops below –19 °C (–2.2 °F) or rises above +60 °C (+140 °F). Before an automatic self-shutdown, the XL3 stops the current measurement and saves the present results.

• Linear external power supply 9 VDC / 2 A:

  • Range: 7.0 – 17.0 VDC @ minimum 4 W;

  • Charges Li-Ion battery in operation; charging time from 10% to 80%: typ. 140 min;

  • Maximum charging power 15 W.

• USB-C supply with 5 VDC / 1.5 – 3 A / 5 W or 15 W according to USB-C specification release 1.2 is sufficient to operate the XL3 + charge the battery; USB BC1.2 is not supported;

• USB-A supply with 5 VDC / 0.5 A (e.g via a USB-A to USB-C adapter) does not provide sufficient power to supply the XL3.
  

• WXT532;

• WXT533;

• WXT536.

Real-time clock with own lithium battery; drift < 1.7 s per 24 hrs.

• 1/4" tripod connection and fold-out stand on rear side;

• Display: 480 x 800 pixels, 4.3" IPS;

• Entry: 8 buttons, capacitive multitouch-display;

• Dimensions L x W x H: 210 x 85 x 45 mm (8.3 x 3.4 x 1.8 ");

• Weight: 500 g (1.1 lb) including Li-Ion battery.

–10 to +50 °C (+14 to +122 °F).

5 to 90% RH, non-condensing.

Classification group X.

CE according to: EN 61326-1 class B, EN 55011 class B, EN 61000-4-2 to -6 and -11.

IP51.