Monarch Instrument EXAMINER 1000 - Manual (Page 4)

OPERATING THE EXAMINER 1000
Overview
The EXAMINER 1000 is designed to be used with vibration limits established in
ISO Standard 10816 to help you detect signs of malfunction or changes in rotating
machinery during operation. This is accomplished with overall vibration (ISO VIB)
and envelope measurements. Problems with bearings occur when there is a
microscopic crack or flaw or when there is a breakdown in lubrication which leads
to metal-to-metal interaction. The EXAMINER 1000 is designed to detect flaws
or a lack of lubrication in bearings and gears at an early stage by measuring the
high-frequency impacts through acceleration envelope methods.
Vibration measurements are made by pressing the accelerometer sensor against
designated Measurement Points on your equipment with either the stringer probe or
with the magnetic base.
Controls and Functions
ON/SELECT Button - Press this button to turn power on. Power automatically
turns off after ten minutes of non-use. After turning the EXAMINER “on”, press
the ON/SELECT button again to select the measurement type. Pressing and holding
the ON/SELECT button while collecting data will HOLD the display value, indicated
by the word “HOLD” in the display. To release from HOLD mode, press the ON/
SELECT button again.
DISPLAY- The digital display shows the numerical value of the measurement. An
arrow indicates the measurement type selected. The units of vibration are
automatically displayed as the type of measurement is selected. The user may work
in either metric or imperial units in the V-velocity mode.
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Type of
Measurement
Value of Measurement
Units of
Measure
0.09
g
GE
in/s
mm/s V
A
E
LoBat
HOLD
Low Battery
Indicator
Type of Measurement
Indicator
Hold Reading
Indicator
GLOSSARY (for vibration purposes)
Acceleration A scalar quantity that specifies time rate of change of velocity.
Expressed in either g’s or m/sec 2 where 1 g = 386.1 in/sec 2 and
9.8066 m/sec 2 .
Acceleration Enveloping A high-frequency, filtered data collection method
expressed in ge.
Accelerometer A transducer which converts acceleration motion in to an
electrical output.
Amplitude The magnitude of vibratory motion. Can be measured as peak-to-
peak, zero-to-peak, or RMS.
Axial The direction parallel to the axis of rotation.
Baseline Recorded values taken when a machine is known to be good. The
standard which all additional readings will be compared to.
CPM Unit of frequency measurement-cycles per minute.
Displacement A scalar quantity specifying the change of position of a body
measured from the resting position.
Dynamic Force A force that varies with time.
Force
Energy applied to a mass producing a deflection (static force) or
motion (dynamic force).
Frequency The repetition rate of a periodic event, expressed in cycles per
second (Hz), CPM, RPM, or multiples of running speed (orders).
g’s Units of acceleration referenced against the force of gravity.
(1g=32.1739 ft./sec/sec; 1g=9.8066 m/sec/sec)
Gear Mesh Frequency A frequency generated by a gear. Defined as the
number of gear teeth on a gear times its shaft-rotating frequency.
Hertz (Hz) A unit of frequency measurement, cycles per second.
High-pass Filter A filter that allows only those components above a selected frequency
to pass.
Integration The time-based process of converting acceleration and velocity to
velocity or displacement.
in/sec, ips Abbreviations for inches per second, a measure of velocity.
Mass The measure of body resistance to acceleration. Proportional to,
but not equal to, weight (mass = weight/gravity).
Measurement Point A location on a machine or component where all subsequent
measurements should be made for accurate comparison.
Mechanical Impedance Ratio of applied force to resulting velocity during
simple harmonic excitation.
Overall The amplitude of vibration within a specified frequency range.
Peak Value The absolute value zero to the maximum excursion on a dynamic
waveform. Also true peak and zero-to-peak.
Periodic Monitoring Measurements recorded at intervals of time.
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