Monarch Instrument EXAMINER 1000 - Manual (Page 6)

Overview of Data Collection Procedure
1. Press the ON/SELECT button.
2. Press the ON/SELECT button again to select the desired measurement type.
Place the accelerometer sensor on the machinery Measurement Point (use
proper probe technique as discussed on the following pages).
3. Wait for the reading to stabilize, then press and hold the ON/SELECT button to
“HOLD” the measurement. Indicated by HOLD in the display.
4. Adjust headphones volume level and listen for any distinct patterns or noises.
5. Record the measurement value in your Machinery Data Worksheet.
6. To release the HOLD function, press ON/SELECT again.
7. Repeat the above steps for each Measurement Point.
Parts of the System
EXAMINER 1000 METER
ACCELEROMETER
WITH CABLE
HEAD PHONES
MAGNETIC BASE
STINGER PROBE
HOLSTER
ON-TIME SOFTWARE AND
OWNERS MANUAL (optional)
3
Evaluating the Overall Vibration Measurements
Three general principles are commonly used to evaluate your vibration measurement
values:
ISO 10816 Standard Comparison - Compare values to the limits established in
the ISO 10816 Standard. See Vibration Severity Chart on page 16.
Trend Comparison - Compare current values with values of Baseline for the
same Points over a period of time.
Comparison with Other Machinery - Measure several machines of a similar
type under the same conditions and judge the results by mutual comparison.
If possible, you should use all three comparisons to evaluate your machinery’s
condition. ISO 10816 and trend comparisons should always be used.
ISO 10816 Standard Comparison
The ISO 10816 Standards provide guidance for evaluating vibration severity in
machines operating in the 10 to 200 Hz (600 to 12,000 RPM) frequency range.
Examples of these types of machines are small, direct-coupled, electric motors and
pumps, production motors, medium motors, generators, steam and gas turbines,
turbo-compressors, turbo-pumps and fans. Some of these machines can be coupled
rigidly or flexibly, or connected through gears. The axis of the rotating shaft may be
horizontal, vertical or inclined at any angle.
Machinery class designations are:
Class l
Individual parts of engines and machines, integrally connected with the complete
machine in its normal operating condition. (Production electrical motors of up to 20
HP (15 kW) are typical examples of machines in this category.)
Class ll
Medium-sized machines typically, electric motors with 20 to 75 HP (15-75 kW)
without special foundations, rigidly mounted engines, or machines on special
foundations up to 400 HP (300 kW).
Class lll
Large prime movers and other large machines with rotating masses mounted on
rigid and heavy foundations which are relatively stiff in the direction of vibration
measurement.
Class lV
Large prime movers and other large machines with rotating masses mounted on
foundations which are relatively soft in the direction of vibration measurement (for
example, turbo-generator sets, especially those with lightweight ub-structures).
Note: These ISO 10816 Standard classes do not apply to prime movers or driven equipment in
which the major working components have a reciprocating motion.
12