BRUEL & KJAER 1617 - Measuring Procedure

3 . 2.1. Measuring Procedures
Input
Signal
Measuring Ampl if ie r 2606,
2607, 2608
Band Pa ss Filter 1617
770356
Fig. 3,2. Basic instrumentation arrangement
1. Connect the instrumentation as shown in Fig .3 .2 .
2. Perform
the preliminary adjustments for the Measuring Amplifier as described in the
relevant Instruction Manual .
3. Set the Measuring Amplifier controls as follows :
INPUT
"Direct" when the B & K coaxial input is used, or
" Preamplifier Input" when the 7 -pin B & K socket
is used
METER
FUNCTION As appropriate: for further information see the
Measuring Amplifier Instruction Manual
GAIN CONTROL "Calibrated"
INPUT ATIENUATOR "300 V"
OUTPUT ATIENUATOR "x 1"
FILTERS " External", plus any weighted network required; if
only audio frequencies are to be measured, the
high pass 22.4 Hz filter and the low pass
22.4 kHz fil!er (not on 2608) can be used to limit
the frequency range of the Filter output signal.
REMOTE/ MANUAL Averaging .
Time
Switch (rear panel
of 2607 only) "Manual"
POWER "On"
4 . Perform the preliminary adjustments for the Band Pass Filter as described in section
3.1.
5. Set
the Band Pass Filter controls as follows:
SELECTIVITY
RANGE
AVERAGING CONTROL
FILTER CONTROL MODE
Bandwidth (and stepping) as required
As appropriate
Switch positions immaterial
Left-hand switch "Manual"
Right- hand switch in neutral position
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