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Procedure will be the same for each Logarithmic Range Potentiometer,
providing the POTENTIOMETER RANGE switch is in the correct position.
For recording an analysis, procedure is similar to that indicated under DC
Recording,
except
for the following amendments. The item numbers are
those used in the DC Recording section.
2. EFFECTIVE AVERAGING TIME of the 2010 can be set to "Fast" in
order to obtain meter monitoring of the output signal.
3. RECTI Fl ER RESPONSE of the Level Recorder should be set to
"RMS" and the LOWER LIMITING FREQUENCY to a value below
the lowest frequency required from the analysis.
4. The READ OUT SELECTOR on the 2010 should be set to one of the
"AC" positions.
6.1.4. Control of the Level Recorder 2307
by
the 2010
The paper drive of the 2307 Level Recorder may be controlled by the
frequency control voltage output from the 2010. The cable AQ 0034 is
connected between the X INPUT socket on the 2307 and the FREQUENCY
CONTROL VOLT AGE "Out" socket on the rear panel of the 2010. The
PAPER DRIVE FUNCTION selecto.r on the 2307 must be set to "X-Rec.".
6.2. TAPE RECORDING
For many applications regarding the measurement of sound and vibra-
tion, the B & K Tape Recorder 7001 may be very useful when employed
with the 201 0.
The 7001 has four tape speeds ranging from 1.5 to 60 inches/sec and
provides two measurement channels and a monitor channel. The measure-
ment channels have a linear response ranging from DC up to 20 kHz
depending on the tape speed selected. It can be connected directly to the
RECORDER socket of the 2010 as shown in the recording set-up in Fig.6.5.
The measuring amp I ifier section of the 2010 is well suited to this applica-
tion, and can serve as a high quality linear input amplifier to the recorder.
The AC output should be selected.
The 2010 can also be used as an input amplifier to other types of tape
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