
3.8Batteries & Auxiliary
Power Supplies
Caution
DO NOT use any battery with
damaged insulation or
sleeving. DO NOT connect a
charger unit to the auxiliary
socket. If rechargeable nickel
cadmium cells are used, they
must be removed from the
instrument for recharging.
900086
Potentiometer Range:
Measuring
0
50
40
30
20
10
Rec. No.
Date:
Sign:
dB.
Rectifier:
Lower Lim. Freq.:
Hz.Wr. Speed:
mm/sec.Paper Speed mm/sec.
dB
10 20 Hz 50 100 200 500 1 2 kHz 5 10 20 40D
A
LinA
B
B
C
C
Lin
100
10dB
CEL-266
1kHz
Oct Filter
Typical
Response
Object
Figure 5: Typical octave filter response curve
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