Casella-cel CEL-177 Bedienungsanleitung PDF herunterladen (Seite 5)

Casella USA

17 Old Nashua Road #15

Amherst, NH 03031-2839

Microphone type Coupler required Correction to nominal level dB

CEL-186/2P CEL-2835 -1.0

CEL-186/2PR CEL-2835 -1.0

CEL-192F CEL-2835 -1.0

CEL-190F Not required -1.0

Genrad 1961 Not required 0

Genrad 1962 CEL-2834 0

Knowles BL1803 CEL-2834 0

B&K 4133 CEL-2835 -1.0

Figure 1

Microphone equivalent volume corrections to nominal output sound level

CEL-177 Acoustic Calibrator

level variation with altitude

-6.00

-5.00

-4.00

-3.00

-2.00

-1.00

0.00

1.00

2.00

-5-4-3-2-101234567891011121314151617181920

Altitude (ft x 1000)

Correction to output

level (dB)

Figure 2

Calibration corrections as a function of altitude realtive to sea level

CEL Dosimeter

model number

Dosimeter calibration count at

nominal output 114 dB

(includes coupler where used)

CEL-139D 58.2

CEL-172H & J 58.2

CEL-172K 184.8

CEL-172L 116.4

CEL-179H & J 46.2

CEL-179K 146.7

CEL-179L 92.4

CEL-180G 46.2

CEL-180J 146.7

CEL-180L 5.5

CEL-181G 58.2

CEL-181J 184.8

CEL-181L 6.3

Figure 3

Dosimeter calibration settings using CEL-177 Acoustic Calibrator

www.casellausa.com Page 5 of 6 tel: (800) 366-2966

[email protected]

28 Jan 2006 fax: (603) 672-8053

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