Casella CEL CEL-368 - Manual (Page 85)

9. SPECIFICATION
CEL-268 - Type 1:
Precision Sound Level Meter according to IEC 651: 1979, Type 1,
Precision Integrating Sound Level Meter according to IEC 804:
1985, Type 1,
Precision Sound Level Meter (with "R" type random incidence
microphone) according to ANSI: S1.4-1983, Type S1.
CEL-368 - Type 2:
Sound Level Meter according to IEC 651: 1979, Type 2,
Integrating Sound Level Meter according to IEC 804: 1985,
Type 2,
Sound Level Meter according to ANSI: S1.4-1983, Type S(1).
Measurement ranges - CEL-268:
Range W'ghting Display Primary Primary Pulse
Setting Range Linearity Linearity Range
Range* Range Pk values
IEC 651 IEC 804 IEC 804
10-80 A 10-80.1 dB 26-60 dB 26-80 dB 57 dB
C 10-80.1 dB 33-60 dB 33-80 dB 50 dB
Linear 10-80.1 dB 45-60 dB 45-80 dB 38 dB
40-110 A 40-110.1 dB 40-90 dB 40-110 dB 73 dB
C 40-110.1 dB 40-90 dB 40-110 dB 73 dB
Linear 40-110.1 dB 40-90 dB 40-110 dB 73 dB
70-140 A 70-140.1 dB 70-120 dB 70-140 dB 73 dB
C 70-140.1 dB 70-120 dB 70-140 dB 73 dB
Linear 70-140.1 dB 70-120 dB 70-140 dB 73 dB
Note* Lower reading is quoted at +10 dB on noise floor.
Upper reading allows crest factor 10.
CEL-268/368 Handbook Page - 84