BRUEL & KJAER 2305 - Specifications; Electrical Specification Details

FREQUENCY RANGE:
AC:
DC:
MAXIMUM
SENSITIVITY:
DYNAMIC
RANGE:
RESOLVING POWER:
INPUT CIRCUIT:
Input Impedance:
Ma:dmnm Input
Voltage:
Specification
ELECTRICAL
2-200000 Hz (cis).
± 0.5 dB (re. 1000 Hz (cis)) for INPUT POTENTIO·
METER in position around "0" and "10"*)
± 1 dB for other positions *)
Chopped at twice the mains frequency.
Minimum voltage to give zero deflection of stylus :
AC : 10 mV* *) RMS approx.
DC: 20 mV a pprox.
Determined by the interchangeable Range Potentio·
meters which are available as:-
Range Accuracy Type
10-35 mV. Linear 2 % of full scale ZR 0001
10-110 mY. Linear 2 % of full scale ZR 0002
10 dB . Logarithmic
± 0.1 dB ZR 0003
(100
mV-316 mV)
25 dB. Logarithmic
± 0.2 dB
ZR 0004
(10 mV-180mV)
50 dB. Logarithmic
± 0.3 dB ZR 0005·**)
(10 mV-3.16 V)
75 dB. Logarithmic
± 0.5 dB
ZR 0006
(10
mV-56 V)
Better than
0. 25 mm on scale when adjusted for 50 mm paper
0.5 mm on scale when adjusted for 100 mm paper .
16--18
kil, de pendent of po s ition of INPUT PO-
TENTIOMETEH , parallel with 100-120 pF approx .
100 Volts.
*) Refer also Fig. 1.2 on page 8.
**) Th e 10 mV maximum sensitivity applies to all Range Potentiom eters except th e 10 dB
where it is 50 mY .
.. *) Normally delivered with Recorder.
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