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Rion · Sound level meter with real-time analyser · Handheld sound level meter

Rion NA-28

Discontinued

Class 1 sound level meter with built-in real-time octave and 1/3-octave analyser, colour display, CF-card storage and optional FFT, building acoustics and waveform recording cards. Sold through the 2010s for environmental and building acoustics work and still widely held. Rion lists the successor functions in the NL-53/NL-63 with NX-43 programs.

Specifications verified on .

Type
Handheld sound level meter
Class
Class 1
Channels
1
Octave bands
1/1 and 1/3
Connectivity
USB mini-B, AC output, DC output, comparator output, external trigger input, infrared remote (NA-27RC1)
Weight
730 g
Battery life
15 h
Compare with other instrumentsAll handheld sound level meters

Specifications

As published by Rion. Fields the manufacturer does not publish are omitted rather than estimated.

Standards and class — Rion NA-28
SpecificationValue
IEC 61672-1 classClass 1
StandardsIEC 61672-1:2013 class 1, IEC 61260:2014 class 1, ANSI/ASA S1.4-2014 Part 1 class 1, ANSI S1.11-2004 class 1, JIS C 1509-1:2017 class 1, JIS C 1513 / JIS C 1514:2002 class 1
Measurement — Rion NA-28
SpecificationValue
Channels1
Measurement rangeA 25 to 140 dB; C 33 to 140 dB; Z 38 to 140 dB
Linearity range110 dB (sound level meter mode); 95 dB (analyser mode)
Peak rangeup to 143 dB
Frequency range10 Hz to 20 kHz
Frequency weightingsA, C, Z
Time weightingsF, S, I
ParametersLp, Leq, LE, Lmax, Lmin, LN (1 to 99 %), Lpeak, Ltm5
Analysis — Rion NA-28
SpecificationValue
Octave bands1/1 and 1/3
Octave band filter classclass 1 (IEC 61260:2014); octave 16 Hz to 16 kHz, 1/3 octave 12.5 Hz to 20 kHz
FFT8000 lines, 20 kHz range (NX-28FT card)
Reverberation timeYes
Building acousticsYes
Audio recordingYes
Logging and data — Rion NA-28
SpecificationValue
Shortest logging interval100 ms (sound level meter mode); 1 ms (analyser mode)
MemoryInternal 1000 sets; CF card (256 MB supplied, 2 GB recommended)
Hardware — Rion NA-28
SpecificationValue
Microphone1/2" UC-59 with NH-23 preamplifier, -27 dB re 1 V/Pa
Detachable preamplifierYes
Display240 x 320 colour semi-transparent TFT-LCD with backlight
Battery4 x IEC R14 (C) alkaline
Battery life15 h
Weight730 g
Dimensions (mm)331 x 89 x 51
Operating temperature (°C)-10 to 50
Connectivity and software — Rion NA-28
SpecificationValue
ConnectivityUSB mini-B, AC output, DC output, comparator output, external trigger input, infrared remote (NA-27RC1)
SoftwareAS-70 Waveform Processing, NX-28BA Building Acoustics card, NX-28WR Waveform Recording card, NX-28FT FFT card

Where this data comes from

Manufacturer documents used for this record
KindDocumentAccessed
DatasheetNA-28 Datasheet (print code 0706-11)

Verified on . Only the manufacturer’s own published material is used; distributor pages are not sources.

Spec out of date? Tell us (reference rion-na-28).

Verified owner reviews

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Known issues and firmware notes

Hardware and firmware problems reported by owners, with the firmware version concerned and any manufacturer response.

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Feature requests

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