User manual sv 35a acoustic calibrator warsaw, march 2017 copyright © 2017 svantek. All rights reserved..
2 sv 35a user manual contents 1. Introduction ........................................................................................................... 3 2. Acoustic calibrator sv 35a ................................................................................... 3 2.1. General description ......
3 sv 35a user manual 1. Introduction one of the fundamental questions that are most frequently asked while taking a measurement is whether its result is accurate. Proceeding with a measurement without having a positive answer to this question may result in obtaining data of no practical use and wast...
4 sv 35a user manual the sv 35a is designed for calibration of sound level meters with ½” and ¼” microphones. Picture 2 shows the calibration of class 1 sound level meter svan 971 with a ½” microphone. Picture 2. Calibration of the svan 971 sound level meter with a ½” measurement microphone notice: ...
5 sv 35a user manual 2.2. Use of the calibrator 2.2.1. Automatic calibration the sv 35a calibrator is equipped with an optical system which detects the presence of a microphone in the calibrator’s chamber. That allows the calibrator to be switched on automatically, when it is placed on the microphon...
6 sv 35a user manual notice: leaving the sa 30 reduction adapter in the chamber of the calibrator is equivalent with the state of the microphone being left inside. Hence, the calibrator will switch off automatically after 3-5 minutes from the moment the adapter is put inside the calibrator. Table 1....
7 sv 35a user manual warning: in the case of water condensation inside calibrator sv 33a can generate significantly lower acoustic pressure then specified. Condensation can appear when cold device is moved to the warmer environment. In such a case certain acclimatization time is required. For the ro...
8 sv 35a user manual 2.3. Replacing the battery the battery should be replaced as follows: a) remove the rubber cover on the button and diodes’ side b) holding the cover unscrew four fixing screws with your fingers c) take off the cover and remove discharged batteries d) put new batteries in place o...
9 sv 35a user manual e) put on the cover so that the diodes fit the corresponding holes in it f) holding the cover with one hand fasten the fixing screws g) put on the rubber cover 3. Sv 35a technical specifications output signal sound pressure level (spl): 94 db and 114 db, with respect to 20 pa i...
10 sv 35a user manual general data effective load volume sensitivity: 0.00027 db / mm 3 level stabilization time: typical 10 sec., max. 25 sec. Microphone dimensions: ½” and ¼” with reduction adapter sa 30 storage temperature range: -25 c do + 70 c ce classification: en 61010-1: 2010 en 61326-1:20...
