Manual
Copyright ©Sigicom AB 2003-2014 Art.no ML089B02850-0En
INFRA S50
Sound Level Meter
Art no. 080-02850-0
ver. F
Valid for firmware version 1.8.0
Страница 1: ...Manual Copyright Sigicom AB 2003 2014 Art no ML089B02850 0En INFRA S50 Sound Level Meter Art no 080 02850 0 Manual ver F Valid for firmware version 1 8 0...
Страница 2: ......
Страница 3: ...mers This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme la norme NMB 003 du Canada EU customers This equipment complies with directives E...
Страница 4: ...ile 12 4 Configuration and operation 14 4 1 Random incidence microphone 14 4 2 Mounting 15 4 3 Pressure reflection phenomena 15 4 4 Parameters 17 4 5 Measurements of low level sounds 20 4 6 Quick Star...
Страница 5: ...Copyright Sigicom AB 2003 2014 3 A 5 Electrical test method 32 A 6 Overload handling 32 A 7 Power consumption 32 A 8 Mechanical data 33 A 9 Approvals 33 Appendix B Glossary 34...
Страница 6: ...grated microphone The S50 Sound Level Meter is to be integrated with the INFRA Field Monitoring System See one example of this in the figure here below Example of a setup of the INFRA Field Monitoring...
Страница 7: ...ng description and detailed description of S50 s standards and parameter settings It also includes a Quick start guide and how periodical testing is performed Chapter 5 Consider this Important informa...
Страница 8: ...cally sent with for example GPRS to the database Possibility to connect more than one sound level meter to each Datalogger Selectable time interval of the interval data A trigger level for recording a...
Страница 9: ...ikes Foam which protects your S50 from shock during transportation Calibration Document Please report immediately any damage or shortage to Sigicom AB Record the instrument s serial number You will be...
Страница 10: ...grated random incidence microphone for general purpose acoustic measurements especially suitable to use in diffuse sound fields The microphone has a large dynamic range and a wide frequency response T...
Страница 11: ...eously with the sound pressure level measurements for example vibration geophone in one direction vibration geophone in three directions air blast dust monitoring wind speed and direction air temperat...
Страница 12: ...udden large pressure peaks Leq The time averaged sound pressure level over the selected interval time see below It has the formal symbol LAT IEC 61672 1 but for mainly historical reasons LAT is common...
Страница 13: ...20 95 dBA 25 95 dBC 30 105 dBA dBC 40 115 dBA dBC 55 130 dBA dBC One of the level ranges can be selected at a time 3 5 Display devices S50 Sound Level Meter shall be connected to the INFRA Field Monit...
Страница 14: ...r triggers The operator of the Datalogger fires a manual trig Recording post trig length is adjustable between 1 and 10 seconds Pre trig is always 1 second Transient data The microphone signal is tapp...
Страница 15: ...d to the same Datalogger shares the transfer channel If the recording length is set short the transient memory will be splitted into two or more transient files This enables that more than one transie...
Страница 16: ...e in the sound field The most ideal frequencies response is reached when the microphone is pointed 90 degrees off the direction of the sound source At normal diffuse field measurements the S50 shall b...
Страница 17: ...ed when the S50 Sound Level Meter is to be mounted to a wall see picture below The distance between the wall and the center line at the top of the microphone is then 15 mm S50 Sound Level Meter mounte...
Страница 18: ...and 17 mm between the center of the microphone and the wall The illustrated pressure level is relative to what should have been measured without any reflections Note that a maximal distance of 15 mm i...
Страница 19: ...x and Leq FAST 30 105 dBA S03 Lmax and Leq FAST 40 115 dBA S04 Lmax and Leq FAST 55 130 dBA S05 Lmax and Leq FAST 25 95 dBC S06 Lmax and Leq FAST 30 105 dBC S07 Lmax and Leq FAST 40 115 dBC S08 Lmax a...
Страница 20: ...es larger than its upper threshold level the the Lmax Lpeak signal is recorded in a transient file The INFRA functionalities SMS and Server messages can be activated such that each time the sound pres...
Страница 21: ...vel on the Leq channel is active The threshold can be set to OFF which means that the upper threshold level of the Leq channel has no effect on the system 4 4 5 Record transient time This is the lengt...
Страница 22: ...e and the measured sound can be considered as uncorrelated and don t add directly to each other The self generated noise level for the less sensible ranges is higher but is at least 5 dB below the low...
Страница 23: ...n for the chosen standard select Interval time Record time and Upper threshold level value and on off It is also possible to change the customer string Note When doing a test or reference measurement...
Страница 24: ...INFRA Datalogger see instruction below to read the current sound pressure level the first value is not valid due to start up effects Press live several times to be sure that the value is stable The d...
Страница 25: ...s shipped care should be taken in repackaging it with the original factory provided packaging S50 shall never be subjected for sound pressure levels above 146 dB Note that maximum measured sound press...
Страница 26: ...a is sent from the Datalogger to an Internet accessible database server where each Infra customer has its own database instance InfraNetManager connects to the database over Internet to access all dat...
Страница 27: ...ce to Sigicom AB for calibration and adjustment See contact information below Recommended calibration interval is 12 months If sent to repair please carefully write down the description of the problem...
Страница 28: ...o 080 01710 0 to 080 01714 0 Sensor bolts of different lengths For mounting of the S50 Sensor Level Meter on a wall Possibly used together with the Mounting Wedge see below Expansion Plug Sigicom art...
Страница 29: ...the S50 Sound Level Meter shall be mounted to a wall By using the Mounting Wedge the sensing microphone will come very close to the wall which is a requirement in many cases Acoustic calibrator Class...
Страница 30: ...2 0m 6 6ft art no 080 01102 0 Sensor drop cable 5 0m 16ft art no 080 01105 0 Sensor cable 15m 49ft art no 080 01115 0 Sensor cable 40m 131ft art no 080 01140 0 Sensor cables in other lengths on speci...
Страница 31: ...Copyright Sigicom AB 2003 2014 29 9 Contact and support Address Sigicom AB Alfred Nobels All 214 SE 146 48 Tullinge Phone 46 8 44 99 770 Internet www sigicom com E mail support sigicom se...
Страница 32: ...ds for class 1 sound level meters which implies that it is capable to measure the sound pressure level of a sinusoidal signal at the calibration frequency for each frequency weighting provided within...
Страница 33: ...06 S16 30 105 dBC 30 106 30 106 30 106 30 106 30 106 S07 S17 40 115 dBC 40 116 40 116 40 116 40 116 40 116 S08 S10 S18 55 130 dBC 55 128 55 131 55 130 55 128 55 125 For a signal with crest factor of 1...
Страница 34: ...tronics inside the S50 Under no conditions voltages above 10Vp p may be applied to the input adapter Use a high quality signal generator A 6 Overload handling Interval values are tagged with overload...
Страница 35: ...ore Tex vent for pressure equalization of the microphone Dimensions 80 x 300 x 50 mm Protection class equivalent to IPx6 3 8 16 UNC thread for mounting on camera tripod Weight 750 g A 9 Approvals Fulf...
Страница 36: ...different combinations of the parameters Acoustic quantity Time weighting Level range Frequency weighting Transient file If the measured signal becomes larger than the upper threshold level the Lmax...
