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Cirrus Research CR:811C User Manual

Cirrus Research CR:811C
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CR:800C Series Sound Level Meter User Manual
Page 54
7.3 Measurements & Settings
Symptom Possible Cause Possible Remedy
Memory is full. Check the available memory.
See page 45
No measurements have been
stored
The measurement was reset Restart the measurement
In 1:1 or 1:3 Octave Band
Mode, the filters do not
automatically sweep
The Run Duration has been set
to Manual.
Select a Preset Run Duration
The measurements are not
aligned with the clock
The Auto-Synchronise function
is switched off
Switch on the Auto-
Synchronise function
Instrument has selected
Impulse Time weighting
L
Ieqt
User Metric may have
been selected
Select SEL User Metric and
change Time Weighting
required
Overload symbol is shown The noise level is too high for
the current range
Select a higher measurement
range
Under Range symbol is shown The noise level is too low for
the current range
Select a lower measurement
range.
The Run Duration has been set
to a preset value.
Select the Manual Run
Duration
The measurement stops after
a set time
The Run Duration has been set
to the User Defined value.
Select the Manual Run
Duration
The measurement does not
stop as expected
The Run Duration has been set
to Manual
Select a preset Run Duration
7.4 Downloading Measurements
Symptom Possible Cause Possible Remedy
No measurements have been
stored
Repeat Measurement
Instrument is not connected to
PC
Connect the USB Cable and
retry.
Measurements cannot be
downloaded
Batteries are too low Replace batteries

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Cirrus Research CR:811C Specifications

General IconGeneral
BrandCirrus Research
ModelCR:811C
CategoryMeasuring Instruments
LanguageEnglish

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