CASELLA CEL CEL-490 Uživatelský manuál

CEL-63x Environmental Noise Meter HB3356-02 User Manual CASELLA MEASUREMENT Regent House, Wolseley Road, Kempston, Bedford, MK42 7JY, U.K. Phone: +

CEL-63x Environmental Noise Meter 10 Casella CEL Fitting the batteries You do not need any special tools to fit new batteries to the instrument.

CEL-63x Environmental Noise Meter 11 Casella CEL 3.2 Using the controls The CEL-63x instrument is designed to allow easy operation. The instrum

CEL-63x Environmental Noise Meter 12 Casella CEL 3.3 Set the time and date Follow the steps below to set the clock. 1. Press and release the

CEL-63x Environmental Noise Meter 13 Casella CEL Each measurement run stores both the before-run and the after-run calibration results, includin

CEL-63x Environmental Noise Meter 14 Casella CEL Figure 4. Instrument calibration 8. Press the ON/OFF key on the calibrator (item 1 in Figure

CEL-63x Environmental Noise Meter 15 Casella CEL 3.5 Making a measurement run The CEL-63x instrument measures, calculates and records all noise

CEL-63x Environmental Noise Meter 16 Casella CEL Fixed measurement view Figure 5. Set a fixed measurement view

CEL-63x Environmental Noise Meter 17 Casella CEL User-defined measurement view Figure 6. Set a user-defined measurement view Refer to Section

CEL-63x Environmental Noise Meter 18 Casella CEL Key press The key press mode allows you to start and stop each measurement run by pressing the

CEL-63x Environmental Noise Meter 19 Casella CEL Figure 7. Measurement controls

CEL-63x Environmental Noise Meter 2 Casella CEL Contents Contents ...

CEL-63x Environmental Noise Meter 20 Casella CEL Measurement data sets The data sets option controls how the CEL-63x instrument records measurem

CEL-63x Environmental Noise Meter 21 Casella CEL The cumulative data set alone does not provide time history information. To include time histor

CEL-63x Environmental Noise Meter 22 Casella CEL To select the Periodic data capture mode, set the Data Sets Mode control to Periodic, and then

CEL-63x Environmental Noise Meter 23 Casella CEL 4 Detailed description 4.1 Microphone and pre-amplifier The CEL-63x instrument has a removabl

CEL-63x Environmental Noise Meter 24 Casella CEL Navigation keys The four Navigation keys allow you to select items on the main part of the scre

CEL-63x Environmental Noise Meter 25 Casella CEL Switch-on The CEL-63x instrument shows an introduction screen after you switch the instrument O

CEL-63x Environmental Noise Meter 26 Casella CEL Status The Status screen shows the following information about the instrument‟s current operati

CEL-63x Environmental Noise Meter 27 Casella CEL Octave and 1/3-Octaves The Octave and 1/3 -Octave screen includes an octave spectrum graph show

CEL-63x Environmental Noise Meter 28 Casella CEL Calibration mode The CEL-63x instrument changes automatically from Stop mode to Calibration mod

CEL-63x Environmental Noise Meter 29 Casella CEL If the calibration fails, this indicates a technical problem with either the instrument or the

CEL-63x Environmental Noise Meter 3 Casella CEL 5.15 Effects of temperature ...

CEL-63x Environmental Noise Meter 30 Casella CEL Measurement run screens The CEL-63x instrument captures measurements when it operates in the Ru

CEL-63x Environmental Noise Meter 31 Casella CEL Values screen The Values screen shows a list of the centre frequencies for each octave or 1/3-o

CEL-63x Environmental Noise Meter 32 Casella CEL Menu screens The CEL-63x instrument‟s Menu mode has three options: The Settings option allows

CEL-63x Environmental Noise Meter 33 Casella CEL User settings The table below lists the functions that you can change in a user-defined measure

CEL-63x Environmental Noise Meter 34 Casella CEL Set Clock The CEL-63x instrument has an internal clock, which allows the instrument to record t

CEL-63x Environmental Noise Meter 35 Casella CEL Measurement start and stop modes There are three methods available to start and stop the CEL-63

CEL-63x Environmental Noise Meter 36 Casella CEL When the instrument has cycled through all six timers, it either stops the run sequence or, if

CEL-63x Environmental Noise Meter 37 Casella CEL 2. This example is a single cumulative measurement (shown as a dark blue line) together with

CEL-63x Environmental Noise Meter 38 Casella CEL Calibration reference level setup The calibration reference level screen allows you to set the

CEL-63x Environmental Noise Meter 39 Casella CEL Octave 1/3-Octave Lower cutoff frequency (Hz) Centre frequency (Hz) Upper cutoff frequency (H

CEL-63x Environmental Noise Meter 4 Casella CEL 1 Introduction The CEL-63x series is a family of noise meters (where „x‟ is a digit that indica

CEL-63x Environmental Noise Meter 40 Casella CEL Memory results The CEL-63x instrument has 1 GB of memory that is available to store the resul

CEL-63x Environmental Noise Meter 41 Casella CEL Delete The Delete screen allows you to delete a single run after you select it, or you can dele

CEL-63x Environmental Noise Meter 42 Casella CEL The printed report includes the optional user logo; the run start date and time and duration; a

CEL-63x Environmental Noise Meter 43 Casella CEL 8 data 2 stop bits no parity. This printer should be loaded with 78 mm thermal paper and

CEL-63x Environmental Noise Meter 44 Casella CEL USB port” on page 52 for information about the connection to make for this purpose. The PC reco

CEL-63x Environmental Noise Meter 45 Casella CEL 4.4 Measurement views User settings The CEL-63x instrument has two measurement views that are

CEL-63x Environmental Noise Meter 46 Casella CEL L Avg threshold The LAvg threshold can be set in the range 0 dB or 70 dB to 90 dB. This thresho

CEL-63x Environmental Noise Meter 47 Casella CEL Octave time constant The setting options are for F (Fast) or S (Slow) octave time constant. Thi

CEL-63x Environmental Noise Meter 48 Casella CEL Figure 12. User-defined measurement view The CEL-63x instrument has four screens that show th

CEL-63x Environmental Noise Meter 49 Casella CEL SPL and Leq SPL The function highlighted in red is the main SPL (instantaneous sound pressure l

CEL-63x Environmental Noise Meter 5 Casella CEL This colour… indicates… Cyan Memory results screens Green Measurement run screens Red Measur

CEL-63x Environmental Noise Meter 50 Casella CEL Other functions listed under Leq are as follows: LAIeq is an integrating A-weighted measureme

CEL-63x Environmental Noise Meter 51 Casella CEL period and produce an average level that assumes the highest level was present for the entire 3

CEL-63x Environmental Noise Meter 52 Casella CEL 4.5 Connections All connections to the CEL-63x instrument are made through three ports behind

CEL-63x Environmental Noise Meter 53 Casella CEL analysis and graphing tools, which you can use to analyse and view measurement runs. Contact C

CEL-63x Environmental Noise Meter 54 Casella CEL instrument to the 140 dB or the 165 dB full-scale measurement mode, refer to the System Tools m

CEL-63x Environmental Noise Meter 55 Casella CEL 5.3 Measurement range Single measurement range up to 140.2 dB(A) RMS and 143.3 dB(C) peak. Li

CEL-63x Environmental Noise Meter 56 Casella CEL 5.11 Correction filters Built-in correction filter for random incidence sound pressure fields.

CEL-63x Environmental Noise Meter 57 Casella CEL 5.18 Microphones CEL-251 ½-inch Class 1, 50 mV/Pa pre-polarised back electret CEL-252 ½-inch

CEL-63x Environmental Noise Meter 58 Casella CEL 5.23 Electromagnetic compatibility The instrument is designed and tested to comply with the fol

CEL-63x Environmental Noise Meter 59 Casella CEL The AC output corresponds to the Z-weighted response of the instrument. DC output 2.5 mm ste

CEL-63x Environmental Noise Meter 6 Casella CEL 1.2 Safety The CEL-63x instrument does not present a safety risk when you use it as instructed

CEL-63x Environmental Noise Meter 60 Casella CEL Sound pressure levels (SPL) o LAF o LCF o LZF o LAS o LCS o LZS o LAI o LCI o LZI No

CEL-63x Environmental Noise Meter 61 Casella CEL Average sound pressure level with exchange rate Q o LAvg(Q4) o LAvg(Q5) each with threshold

CEL-63x Environmental Noise Meter 62 Casella CEL D) Marker Event Results This produces a file of events where each event is either one of four m

CEL-63x Environmental Noise Meter 63 Casella CEL 6 Care and maintenance Use a clean, slightly damp cloth to wipe the outside of the CEL-63x i

CEL-63x Environmental Noise Meter 64 Casella CEL 7 Servicing and Warranty arrangements 7.1 Inspection and test To make certain the CEL-63x ins

CEL-63x Environmental Noise Meter 65 Casella CEL The warranty excludes the following components of the product or aspects of damage: • Batterie

CEL-63x Environmental Noise Meter 66 Casella CEL NOTE Any stored data should be downloaded before sending the unit for service, because it may

CEL-63x Environmental Noise Meter 67 Casella CEL 8 Glossary The following list defines some of the acoustic terms that you can find in this Use

CEL-63x Environmental Noise Meter 68 Casella CEL Fast time weighting A standard time weighting applied to measurements. Most measurements are ma

CEL-63x Environmental Noise Meter 69 Casella CEL LASmax (also LAFmax and LAImax) The maximum A-weighted sound level measured using slow time wei

CEL-63x Environmental Noise Meter 7 Casella CEL CAUTION The CEL-63x instrument can operate from a battery power supply. Use only batteries

CEL-63x Environmental Noise Meter 70 Casella CEL SPL The sound pressure level. This is the basic physical measure of noise and is normally expre

CEL-63x Environmental Noise Meter 71 Casella CEL 9 Additional information The following additional information relates to testing under IEC 616

CEL-63x Environmental Noise Meter 72 Casella CEL 5. Linear operating range Table 4 shows the lower and upper limits of the linear operating ran

CEL-63x Environmental Noise Meter 73 Casella CEL 9. Highest level Using the microphones CEL-251 and CEL-252, the highest sound pressure level t

CEL-63x Environmental Noise Meter 74 Casella CEL 13. Electric field strength greater than 10 V/m The CEL-63x instrument has not been tested for

CEL-63x Environmental Noise Meter 75 Casella CEL without the wind screen, then you must set the calibration level to 113.88 dB. You must round t

CEL-63x Environmental Noise Meter 76 Casella CEL Nominal Frequency Actual Frequency 0 Degree Free Field Response 0 Degree Free Field Corrections

CEL-63x Environmental Noise Meter 77 Casella CEL Table 8. CEL-63X with CEL-251 Microphone directional response (dB) relative to zero degrees (O

CEL-63x Environmental Noise Meter 78 Casella CEL Table 9. CEL-63X with CEL-251 Microphone directional response (dB) relative to zero degrees (O

CEL-63x Environmental Noise Meter 8 Casella CEL 2 Features Figure 1 shows the main features of the CEL-63x instrument. Refer to Figure 1 when y

CEL-63x Environmental Noise Meter 9 Casella CEL 3 Quick reference 3.1 Powering the instrument The options for powering the instrument are as f