MONARCH INSTRUMENT Instruction Manual EXAMINER 1000 Vibration Meter Electronic Stethoscope Printed in the U.S.A. Copyright 2008, Monarch Instrument, all rights reserved 1071-4400-114R 1008 15 Columbia Drive Amherst, NH 03031 USA Phone: (603) 883-3390 Fax: (603) 886-3300 E-mail: support@monarchinstrument.com Website: www.monarchinstrument.
Safeguards and Precautions Use the chart below as a guide to judge the overall vibration severity of your equipment. Refer to page 12 for further details. VIBRATION SEVERITY PER ISO 10816-1 1. Read and follow all instructions in this manual carefully, and retain this manual for future reference. Machine 3. This instrument is not user serviceable. For technical assistance, contact the sales organization from which you purchased the product or Monarch Instrument directly.
GLOSSARY (for vibration purposes) Piezoelectric A material in which electrical properties change when subjected to force. Process Measurements Variables such as temperature, pressure, speed and flow used to assess internal conditions of efficiency. Radial Direction perpendicular to the shaft centerline. Repeatability A measure of the deviation between successive measurements made under the same conditions. RMS Peak Vibration x .707.
OPERATING THE EXAMINER 1000 GLOSSARY (for vibration purposes) Overview Acceleration A scalar quantity that specifies time rate of change of velocity. Expressed in either g’s or m/sec2 where 1 g = 386.1 in/sec2 and 9.8066 m/sec2. 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-topeak, zero-to-peak, or RMS.
Comparison with Other Machinery When several similar machines are used under the same operating conditions, evaluation can be carried out by measuring all machines at the same Points and comparing the results. REAR PANEL CONNECTIONS CONNECTIONS 1234 1234 E Use trend Comparison similar to overall vibration to establish severity levels. Accelerating Envelope readings tend to decrease as Overall Vibrations readings increase.
Parts of the System Evaluating the Overall Vibration Measurements EXAMINER 1000 METER ON-TIME SOFTWARE AND OWNERS MANUAL (optional) HEAD PHONES HOLSTER ACCELEROMETER WITH CABLE MAGNETIC BASE STINGER PROBE 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.
Measurement Techniques What Is Predictive Maintenance? In general, vibration of anti-friction bearings is best monitored in the load zone of the bearing. Equipment design often limits the ability to collect data in this zone. Simply select the measurement Point which gives the best signal. Avoid painted surfaces, unloaded bearing zones, housing splits, and structural gaps.
Why Measure Vibration? What are you Measuring? Vibration is considered the best operating parameter to judge dynamic conditions such as balance (overall vibration), bearing defects (enveloping) and stress applied to components. Many machinery problems show themselves as excessive vibration. Rotor imbalance, misalignment, mechanical looseness, structural resonance, soft foundation, and gearmesh defects are some of the defects that can be measured by vibration.
Establishing a Data Collection Route Selecting Machinery and Measurements The Machinery Data Worksheet helps organize data for routine data collection. Vibration readings are taken on the Points (bearings) established in your route and recorded using your naming convention on the worksheet. Vibration, speed, temperature, pressure or any process data may be recorded using this type of systematic approach.
Selecting Measurements Getting Started in Your Plant Establish measurement types that most accurately reflect the condition of the equipment. Different causes or “mechanisms” are acting on the machine; various types of measurements have been developed to measure each type of mechanism. Those mechanisms are: Stress A force on the machine or components which deflects the part. Best measured in Displacement.
