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Summary of Contents for SV S12
- Page 1 Sound Level Meter & Nosie dosimeter S12 User Guide 1.2 Document Version : 1.2 Date : 17 February, 2021 SV CORPORATION...
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Page 2: Table Of Contents
Table of Contents 1. Sound Level Meter ................................4 2. Connection ....................................4 3. Noise measurement ................................5 3.1. Power ON ..................................5 3.2. Start measurement ..............................5 3.3. Recording measurement ............................5 3.4. Toggle noise value display ............................ 6 4. - Page 3 7. Example; Printout form..............................19 8. Distribution history ................................20 ■ Appendix A. Keypad button ............................21 ■ Summary main screen ..............................22 ■ Measurement(START) ................................ 22...
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Page 4: Sound Level Meter
Sound Level Meter & Nosie dosimeter S12 1. Sound Level Meter Sound level meter S12 measures and displays the analog noise waveforms numerically. Sound Pressure Level, Equivalent Continuous Sound Level or Leq, Peak, etc. are displayed in decibels. Sound pressure 20 (μPa, microwave Pascal) is set as a reference level. It consists of a frontend and a sensor. -
Page 5: Noise Measurement
3. Noise measurement 3.1. Power ON Press the <POWER> button to turn on the device. The device is in a suspended state. 3.2. Start measurement Press the <ENTER> key. The device will display 'Stn' at the top right of the screen and start the measurement. -
Page 6: Toggle Noise Value Display
3.4. Toggle noise value display When you press the F2 key, the device displays sound pressure level(SPL). 'LAF' is displayed on the upper left of the screen. Each press of the F2 key toggles the quantification of noise in the order LAF, LAFmax, LAFmin, and LApeakMax. -
Page 7: Twa (Time Weighted Average) Db(A)
4.2 TWA (Time Weighted Average) dB(A) The TWA shows a worker's daily exposure to occupational noise (normalized to an 8 hour day), taking into account the average levels of noise and the time spent in each area. This is the parameter that is used by the OSHA Regulations and is essential in assessing a workers exposure and what action should be taken. -
Page 8: Projected Dose
4.4 Projected Dose Dose measurements usually require the noise exposure to be measured over a full 8 hour working day. This can be simplified by using projected dose. This dose allows the present accumulated dose over the logged time duration to be projected forward to give the predicted 8 hour dose. -
Page 9: Menus
L50 is the noise level exceeded for 50% of the measurement duration. It is the middle point and has been incorporated in some American Community Noise Assessments. L90 is taken to be the ambient or background noise level. L10-L50 is often used in such noise indices as Traffic Noise Index: TNI= 4 ·... -
Page 10: Common
<10 min> : The device turns off after 10 minutes. default <Not use>; Not adopt “auto pwoff” ← ③ s/w update, ‘Software update’ Update the firmware. Selecting this item will display a warning message. If you are not informed by the SV... - Page 11 Corporation, you must press F5 to cancel. When prompted, press the OK button to proceed with the update. 4) Information Display system version information. Sound Level Meter/Noise Dosimeter SV Corporation Ver.; Algorithm; Serial Number; 5) Serial Number User needs to enter his SLM device number. Device serial number is a 12 digit alpha-numeric number, written on the backside of the device.
- Page 12 Calibr Coef , Calibration Coefficient : 1.0 ⑤ Press the <▲/▼, UP/DOWN> buttons to move the cursor to OK/Cancel. Then press the <ENTER> key. ⑥ Turn on the calibrator. ⑦ Press the <ENTER> key to select the "Start" item. “Preparing…” and “Processing…” Is displayed.
- Page 13 ① SLM Measurement Report...
- Page 14 ② Noise Dosimeter Measurement Report Self-explanatory reports of ND mode are shown below. (3) Percentile noise (Ln) report format Ln repots is similar to the print report shown as in SLM and ND modes. In this mode results are L1, L5, L10, L30, L50, L90, L95 and L99.
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Page 15: Analysis Options
5.4 Analysis Options 1) Sound level meter ① Integral, Select a data analysis type. <SPL>, Sound pressure level <Leq>, Sound equivalent continuous pressure level <Ln>, Percentile noise level ② IntegratTime, ‘Integration Time’ Select the integral period of Leq, Ln default: 0.1 sec {0.1, 0.2, 0.5, 1, 2, 5, 10 seconds and recording time in Leq and Ln} ③... - Page 16 {1 sec, 2 sec, 3 sec, 5 sec, 10 sec, 1 min, 5 min, 10 min, 20min, 25min, 30min, 1h, 4h, 6h, 8h, 12h, 16h and 24h }, Record for 1 second ~ 24 hours 2) Noise dosimeter etc. Select data noise patterns and recording time (1) Type ;...
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Page 17: Gps
1) Basic print set up; Common 6) 2) Printing; Select Files , press print button->file will be shown, select-> press ENTER(starting print), before printing start, need to connect between S12 and printer with RS232 cable. ■ Printing guide (1) File printing function is provided for Noise Dosimeter and SLM (only LN) modes. - Page 18 Size : 190 mm x 90 mm x 30 mm (without Microphone) Weight : 290 g (Frontend, without Microphone) OS : RTOS CPU : ARM Cortex-M7 (300MHz) Memory : 32GB Environmental Operating temperature range: 0 °C to 50°C Storage temperature range: -20 °C to 70°C Humidity : 5% ~ 95% Non-condensing Power supply : DC 3.7V 0.4W...
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Page 19: Example; Printout Form
7. Example; Result files SLM result file - ND result file – Ln mode result file -... -
Page 20: Distribution History
8. Distribution history Date Change history 2020.11.11 Release 1 state program for noise dosimeter 2021.02.17 SLM & Ln mode 24 hours recording, recording pause, Print report in SLM mode, Print report corrections... -
Page 21: Appendix A. Keypad Button
■ Appendix A. Keypad button (1) F1 : Equivalent continuous sound pressure level / Toggle : Inst, Avg, Max, Min, Peak max (2) F2 : Sound pressure level / RMS, Max, Min, Peak max (3) F3 : Reset the measurement / Device reset (4) F4 : Pause the recording and Resume the recording (5) F5 : Menu / Back (6) ▲, UP : Scroll up, changing value up... -
Page 22: Summary Main Screen
■ Summary main screen (1) Parameter is currently displayed in (5). Possible parameters: - Noise dosimeter: SPL(inst), Dose, TWA, PrjDose (to switch use Menu/Analyzing Options/Noise Dosimeter) - SLM mode: Leq[In],Leq[Avg], Lmax, Lmin, LPeakMax, L10, L30, L0 and L90 ( to switch use F1 in SLM mode) - SLM mode: SPL, max, min, PeakMax, L10, L30, L0 and L90 (to switch use F2 in SLM mode) - Ln mode: L1, L5, L10, L30, L50, L90, L95 and L99 L90 (to switch use F1) - Page 23 (2) Arming (Arm): analyzing without saving results; Press < Enter > button to start and again < Enter > button to stop. (3) Recording (REC): analyzing with saving of result to SD; Press <REC> button to start and again <REC> button to stop. (4) Stop state: no signal receiving.
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