NL-31. The manual contains the following sections. Outline. Gives basic information 22. Preparations. Note. The clock IC used in this unit has an error of about 1 . For acoustic calibration, the Rion sound calibrator NC-74 or pistonphone. This manual describes the features and operation principles of the sound calibrator. NC-75. . microphones made by Rion as well as microphones made by other . NL-20. UC-52. 93.9. NL-21. UC-52. 93.9. NL-22. UC-52. 93.9. NL-27. UC-52.rion.co.jp/english/ Documentation for the Sound Level Meter NL-42/NL-52 comes in three parts, as Company names and product names mentioned in this manual are usually 22. Preparations. Setting the software DIP switches of the DPU-414. Turn on the power while holding down the ON LINE key of the 5 Jan 2014 rion.co.jp/english/. Page 2. FOR SAFETY. In this manual, important safety instructions are specially marked .. SOUND LEVEL METER NL-27 .. 22. Sp ec ifi cation s. Measurement frequency range 20 Hz to 8 kHz. NL-20. The manual covers the communication protocol, use of control 22. Preparations. 5. Press the Menu key again to return to the measurement screen. For acoustic calibration, the Rion sound calibrator NC-74 or pistonphone. 30 Oct 2019 RION. Sound Measurement with. Audio Recording in a Unit Sound Level Meter NL-22/32 The sound level meters NL-22/NL-32 are . 10 seconds, 1, 5, 10, 15, 30 minutes, 1, 8, 24 hours, and manual (maximum 200 hours). Special website for Rion?s latest Sound Level Meter NL-52/NL-42. Paper manual is needed. User instructions and a help function can be easily accessed on the device. .. NL-62 *; NL-52/42 *; NL-32/31/22/21 *; DA-40Viewer. * Only auto The Rion NL-32 Sound Level Meter has been replaced. 1/3 octave values as selected, with manual data storage only to NX-22RT card; Alkaline batteries (24h NL-32 31. Sound Level Meter . NL-22 21 20. Sound Level Meter . Clean and simple .. 10 seconds, 1, 5, 10, 15, 30 minutes, 1, 8, 24 hours, and manual (maximum 200 hours). A-weighting: 28 . ISO 9 0 01 RION CO., LTD. NL-22, NL22 Precision Noise Analyzer - [Rion] Japan rion Technical index Measuring time 10s, 1m, 5m, 10m, 15m, 30M, 1h, 8h, 24h, manual 200 hours.