Casella CEL CEL-281 - Manual (Page 130)

7.3 Specification
Type:
Noise Dosimeter according to ANSI S1.25-1978 Class 2A & 2C*,
Personal Sound Exposure Meter according to IEC 1252:
1993 and BS 6402: 1994,
Type 2 Sound Level Meter according to IEC 651 and
ANSI S1.4 1983,
Type 2 Integrating Sound Level Meter according to
IEC 804 and BS 6402: 1983.
Note*: See also User adjustable parameters and Table 1 (Section 2.2).
Detector:
True RMS: Pulse range: >63 dB,
200 Pa.
Peak: 143 dB.
Sound level range primary indication: (at 1kHz)
70 - 140 dB(A) and dB(C),
70 - 133 dB(A) and dB(C) measured according to IEC 651,
70 - 130 dB(A) and dB(C) measured according to ANSI S1.25.
The indicated range is subject to the effects of A- or
C-weighting at other frequencies.
Nominal dynamic range: 70 dB.
Noise dose range:
0.00001 - 2 x 10
9
(shown as 2000E6) % Dose.
Sound exposure range:
0.00001 - 640 000 Pa
2
h.
Technical Information
CEL-281 Operator's Handbook - Page 121