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CESVA SC160, Руководство пользователя, Страница: 5 / 9

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Villar, 20 - 08041 Barcelona (Spain) - Tel. (34) 934.335.240 - Fax. (34) 933.479.310 - e-mail: [email protected] - www.cesva.com 

SC160 

Technical specifications 

Standards and specifications 

Complies with the following standards. 

• 

EN 61672 class 2

, 

EN 60651:94 (A1:94) (A2:01) class 2, EN 

60804:00 type 2, EN 61260:95 (A1:01) class 2 

•

 IEC 61672 class 2, IEC 60651:01 class 2, IEC 60804:00 type 2, IEC 

61260:95 (A1:01) class 2 

• 

ANSI S1.4:83 (A1:01) type 2, ANSI S1.43:97 (A2:02) type 2, ANSI 

S1.11:04

 

 

• 

 Mark complies with 73/23/CEE and CEM 89/336/CEE low-

tension regulations, the latter amended by 93/68/CEE. 

Measurement range 

• 

L

F

, L

S

, L

I

, L

T

 and L

t

 

Indicator limits:  

0 – 137 dB 

Primary range 

A 

C 

Z 

  Upper limit  

113 

113  113 

  Lower limit 

36 

36 

40 

Measurement range: 
  Upper limit: 

137 

137  137 

  Crest factor 3: 

130 

130  130 

  Crest factor 5: 

126 

126  126 

  Crest factor10: 

120 

120  120 

  Lower limit: 

19 

21 

32 

• 

L

peak

 

Indicator limits: 

0 – 140 dB 

Peak detector Lpeak 

Onset time constant

  

 

 

< 75 

µ

s

 

 

Noise 

• 

Electrical noise: 

A 

C 

Z 

          Maximum 

12  12,1  23,1 

          Typical 

9,1  11,4  18,5 

• 

Total noise  (elec thermic of the microphone): 

          Maximum 

27,1  31,0  39,0 

          Typical 

25,3  29,0  35,0 

Frequency weighting 

Complies with the EN 61672, EN 60651 and EN 60804 type 2 standard 
Weightings A, C and Z 

AC output 

Frequency weighting: linear 
Sensitivity to 137 dB and 1 kHz (Gain = 0dB): 3,8 Vrms (max) 
Upper limit: 7 Vpeak ; Output impedance: 100 

Ω

   

Gain: 0 and 40 ± 0,2 dB 

5 

Содержание SC160

Страница 1: ... Z with frequency weight ings Within the analyser mode there is a special screen to evaluate room noi se especially designed for HVAC system installers engineers and consultants that allows you to asses noise in real time using the NC and NR curves criterion Applications Evaluation of the noise exposure of workers at workplace simultaneously to the verification of PPE Personal Protective Equipment...

Страница 2: ... Peak sound pressure level t Measurement time T Integration time Ln n 1 5 10 50 90 95 99 Percentiles with A frequency weighting 31 5 63 125 250 500 1k 2k 4k 8k 16k Nom Description of analyser mode 1 1 functions LXT Equivalent continuous sound pressure level with T integration time LXT_f Equivalent continuous sound pressure level with T integration time for the f octave band selected See graphic be...

Страница 3: ...onverter cable CN DAT AC output audio cable TR 40 Tripod height 1 1 m TR050 Tripod height 1 55 m TR002 Tripod support for cable CNR ITV A 200 Mains feeder 230 V 50 Hz to 9 V A 100 Battery converter 12 V to 9 V ML 50 Transport briefcase 49 x 36 x 14 cm ML 10 Transport briefcase 39 x 32 x 12 cm ML060 Special outdoors transport briefcase 51x38x15 cm IM003 Printer 40 columns serial RT 030 Reverberatio...

Страница 4: ...ency weighting Each T T 1 s 4 hours 45 minutes T 1 min 11 days 21 hours T 5 min 2 months T 1 hour 2 years The SC160 can store in its internal memory the values of the func tions measured When the unit is switched off the data is saved and may be retrieved and displayed directly from the SC160 or transferred to a PC The memory may be erased directly from the SC160 In the memory of the SC160 may be ...

Страница 5: ... range LF LS LI LT and Lt Indicator limits 0 137 dB Primary range A C Z Upper limit 113 113 113 Lower limit 36 36 40 Measurement range Upper limit 137 137 137 Crest factor 3 130 130 130 Crest factor 5 126 126 126 Crest factor10 120 120 120 Lower limit 19 21 32 Lpeak Indicator limits 0 140 dB Peak detector Lpeak Onset time constant 75 µs Noise Electrical noise A C Z Maximum 12 12 1 23 1 Typical 9 1...

Страница 6: ... Influence of humidity Operation range 25 to 90 Maximum error at 25 R H 90 at 40 ºC and 1 kHz 0 5 dB Storage without batteries 93 Effects of magnetic fields In an 80 A m magnetic field 1 oersted at 50 Hz a reading of less than 25dB A is given Influence of temperature Operation range 10 to 50 ºC Maximum error 10 to 50ºC 0 5 dB Storage without batteries 20 to 60 ºC Effects of vibrations For frequenc...

Страница 7: ... SC160 memory to a PC Erase the SC160 memory Display graphically and numerically the data files and convert them into different formats txt xls mdb System of encrypted file The files are saved in their own ccf format and cannot be changed which guarantees their total integrity and legality Data exportation to other applications CAPTURE Studio provides you with a convenient use friendly environment...

Страница 8: ...T30 and decay curves for all octave bands The reverberation time module for the SC160 is optional and may be purchased when buying the SC160 or later All SC160 pur chased before this date may be upgraded with this module Below a graphic is shown with the steps that must be followed to make a reverberation time measurement Storage Capacity Reverberation time T20 and T30 Background noise LN maximum ...

Страница 9: ...an the exposure time because it shows on the screen all parameters projected to the expected exposure time programmable projection time tp To evaluate the exposure to noise taking into account the attenua tion of the individual hearing protectors worn by the worker the SC160 besides measuring the equivalent level with A and C fre quency weightings LAt LCt SNR and HML method simultane ously carries...

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