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231 |
254 |
ƯÀå:
°¡Àå °£´ÜÇÑ ±¸Á¶ÀÇ ÀϹÝÇü ¼ÒÀ½°èÀ̸ç, µðÁöÅ» Ç¥½ÃºÎ ¹× ¸ðµ¨, ½ºÅ¸ÀÏ, °¡°ÝµîÀÌ µ¿±Þ ¼ÒÀ½°è¿¡ ºñÇØ ¿ùµîÈ÷ ¾Õ¼±´Ù. ±âº» °è±â¿¡¼ 231 ¸ðµ¨Àº AƯ¼º¸¸ÀÌ ÃøÁ¤µÇ°í, Fast-SlowÀÇ Time-Weighting ÀÌ ¼±ÅõȴÙ. 254 ¸ðµ¨Àº 1´Ü°è¿¡ ¾Õ¼¼ A¹× Ư¼ºÀÌ High/Low ·Î ¼±ÅÃµÉ ¼ö ÀÖ°í, Fast-Slow ¿Í Impulse Response, Max Holding ±â´ÉÀÌ Ãß°¡µÇ¾î Æí¸®ÇÏ°Ô »ç¿ëÇÒ ¼ö ÀÖ´Ù.
»ç¾ç:
±âº»: IEC 651 ŸÀÔ, 2 ÀÓÆÞ½º(CEL-254 only), 51.4 ŸÀÔ 2A
Á¤¹Ð¼º: 1dB
ÃøÁ¤¹üÀ§: 30-135dB(A)
»óÇÑ: 125dB RMS/½Ã±×³Î, crest factor >3,
121dB RMS/½Ã±×³Î, crest factror >5 (CEL-254)
°úºÎÇÏ: Pre-weighting °úºÎÇÏ Å½»óÀÚ, 2 second dwell (CEL-254 only)
Dynamic Range: 70dB(A)
Frequency Weighting: A and C (CEL 254), A(CEL-231)
Time Weighting: Slow, Fast and Impulse (CEL-254), Slow and Fast (CEL 231)
ÃÖ´ë Ȧµå±â´É: Decay < 0.2 dBmin. (CEL-254 only)
¸¶ÀÌÅ©·ÎÆù: Electret Condenser
µð½ºÇ÷¹ÀÌ: 3 1/2 ÀÚ¸®, ¹®ÀÚ ³ôÀÌ 12.7mm, LCD
º¸Á¶ Ãâ·Â: AC Conditioned 7.25V RMS FSD
ÃÖ¼Ò ·Îµå ÀúÇ× 39k
DC log RMS Ãâ·Â 25mV/dB
ÃÖ¼Ò ·Îµå ÀúÇ× 27k
Reference Conditions: 114dB SPL, ÀÚÀ¯Çʵå, ¼öÁ÷, 1kHz, 20C, 65%R.H.
¿Âµµ ¹üÀ§: ÀÛµ¿¿Âµµ: -10C to 50C, ÀúÀå¿Âµµ; -20C-60C
½Àµµ È¿°ú: < 0.5dB 30% to 90% RH
¹åµ¥¸®: 4xAAA Managanese Alkaline Cells
¹åµ¥¸® ¼ö¸í: 20½Ã°£ - low battery indicator
±Ô°Ý: 258x70x21mm
Áß·®: 250grams
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CEL-231 Digital Sound Level Meter
![](http://www.korins.com/m/cel/231-b.gif) |
- Ideal for the measurement of steady or slowly varying noise levels such as pumps or fans
- 30 - 135 dB measurement range
- Slow and Fast time weightings
- A and C frequency weightings
- AC and DC analog outputs to recorders
- Powered from 4 x AAA cells
- Lightweight and easy to use, even for beginners
- Available individually or as a complete measurement kit with an Acoustic Calibrator
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CEL-254 Digital Impulse Sound Level Meter
![](http://www.korins.com/m/cel/254-b.gif) |
- Ideal for the measurement of steady and fluctuating noise levels
- 30 - 135 dB measurement range
- Slow, Fast and Impulse time weightings
- A and C frequency weightings
- Sound level and Maximum hold shown on large LCD display
- Overload and low battery indications
- AC and DC analog outputs to recorders
- Lightweight and easy to use, even for beginners
- Available individually or as a complete measurement kit with an Acoustic Calibrator
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