Svantek SV 977D - Selecting the Measuring Range - Range; Rotation Measurement Settings - RPM Measurement

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SV 977D User Manual
4.6 SELECTING THE MEASURING RANGE – RANGE
The Range position is used for selecting the
measuring range of the instrument.
The Range screen presents for the selected
range: Leq linearity range, Leq dynamic range
and Peak range for 1 kHz.
There are two ranges available: High and
Low. Default value: Low.
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The detailed description of the measuring
ranges parameters is given in Appendix C.
The values of ranges in sound modes depend
on the settings in the Compensation Filer
screen (path: <Menu> / Measurement /
Compensation Filter) and in both sound and
vibration modes – on the calibration factor.
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Note: The calibration factor may influence the measuring range of
SV 977D.
For example, if the new calibration factor is equal to 1.0 dB, the limits
of the Low range will be changed as shown on the attached screen.
The attached screens present the Range for
the Vibration mode and zero calibration factor.
Nonzero calibration factor always shifts the
lower and upper limits of the ranges for
vibration modes.
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4.7 ROTATION MEASUREMENT SETTINGS – RPM MEASUREMENT
The RPM Measurement position enables
switching on and setting rotational speed
measurement by tacho probe. Default mode:
disabled.
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Note: The RPM function is optional and should be unlocked by entering the activation code in the
text editor screen, which is opened during first attempt to open this position. Once unlocked this
option will be ready to use permanently.
To perform the RPM measurement the tacho probe should be connected to the
I/O socket and the RPM position in the RPM Measurement screen should be
switched on.
When you switch the RPM on the instrument automatically switches the
I/O Mode to Digital In (path: <Menu> / Instrument / Multifunction I/O /
I/O Mode) and makes it inactive for changing.