Summary of CAL150
Page 1
Cal150 precision acoustic calibrator manual.
Page 3: I150.01 Rev E
I150.01 rev e larson davis cal150 manual.
Page 4: Copyright
Copyright copyright 2006-2015 by pcb piezotronics, inc. This manual is copyrighted, with all rights reserved. The manual may not be copied in whole or in part for any use without prior written consent of pcb piezotronics, inc. Trademarks pcb ® is a registered trademark of pcb, inc. Disclaimer the fo...
Page 5: Features
Cal150 technical reference manual introduction 1-1 c h a p t e r 1 introduction this chapter describes the features and accessories of the larson davis cal150 sound level calibrator. Features the larson davis cal150 sound level calibrator is a battery-operated precision microphone calibrator used fo...
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Cal150 technical reference manual features 1-2.
Page 7: Installing The Battery
Cal150 technical reference manual using the cal150 calibrator 2-1 c h a p t e r 2 using the cal150 this chapterr describes the setup and operation of the cal150. Installing the battery the cal150 uses a nine-volt battery and it is recommended that you use an alkaline battery to extend the running ti...
Page 8: Calibrating With ½"
Cal150 technical reference manual microphone calibration 2-2 position for 94.0 db, as indicated by the label on the lower left of the front panel. Calibrating with ½" free-field microphone corrections the cal150 provides a nominal pressure level of 94 db or 114 db. The exact levels are printed on th...
Page 9: Performing The Calibration
Cal150 technical reference manual microphone calibration 2-3 performing the calibration to calibrate the microphone, follow these steps: step 1 place the instrument so that you can perform the calibration vertically, as shown in figure 2-1. Warning! Do not remove the microphone gridcap during calibr...
Page 10: Calibration History
Cal150 technical reference manual microphone calibration 2-4 step 4 with the microphone connected to the instrument being calibrated, press the cal150’s on button. With a fresh battery, the calibrator will issue a tone for more than 60 seconds before automatically shutting off (see note below). Step...
Page 11: Environmental Precautions
Cal150 technical reference manual microphone calibration 2-5 environmental precautions while the cal150 will perform normally under a wide variety of gradually changing environmental conditions, some precautions should be taken when sudden changes occur: • the temperature of the cal150 should be sta...
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Cal150 technical reference manual microphone calibration 2-6 if a systematic drift of several db occurs, there is no reliable way to verify which instrument is at fault, even though it is more likely to be the measurement instrument. • for one calibrator and several measurement instruments, one cali...
Page 13: Standards Met
Cal150 technical reference manual specifications a-1 a p p e n d i x a specifications the specifications contained in this chapter are subject to change without notice. Please refer to calibration and test results for data on a specific unit. Standards met • ansi s1.40-2006, specifications and verif...
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A-2 technical specifications cal150 technical reference manual table a-1 cal150 specifications microphone types according to iec 61094-4:1995 1/2” ws2p, ws2f and ws2d microphones; no adaptor required temperature range spl variation over the range of -10 ºc to 50 ºc humidity range spl variation relat...
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Cal150 technical reference manual technical specifications a-3 1/4” ws3p, ws3f and ws3d microphones with adp024 adaptor according to iec 61094-1;2000 1/2” ls2p; no adaptor required other microphones 3/8” with adp031 adaptor 4180 microphone the cal150 level correction is +0.26 db.
Page 16: •pcb
A-4 technical specifications cal150 technical reference manual ce mark declaration of conformity figure a-1 ce mark declaration of conformity •pcb declaration of conformity application of council directives: 2004/108/bc emc directive and 2006/95/ec low voltage directive standards to which conformity...