IRD Mechanalysis IRD811 Manual

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IRD Mechanalysis Limited
IRD811
Vibration Spike Energy Detector
Operation & Maintenance Manual
Version 2.0
May 2013
IRD Mechanalysis Limited
1/5,MarolCo-opInd. Estate Ltd
Off. M. Vasanji Road, Marol
Andhedri (E), Mumbai – 400 059
Tel: [phone], Fax: [phone]
Email : [email protected]
Web: www.irdmechanalysis.com

IRD811 O&M Manual IRD Mechanalysis
®
Limited
I
condition management solutions
IRD Mechanalysis Limited
www.irdmechanalysis.com
IRD Mechanalysis Limited continues to be the industry leading provider of Condition
Management Solutions. With over 30 years’ experience in machinery vibration and
associated condition monitoring technologies, the company designs and manufactures
proven instrumentation suitable for rugged industrial environments. A comprehensive range
of products and services are available from the offices below.
Location Addresses Contact Numbers
Delhi
Sagar Deep, Plot No.11, LSC Saini Tel:[phone]
Enclave, Vikas Marg, Fax:[phone]
New Delhi 11009
2
Email:
-
[email protected]
Kolkata
153/A, 2nd Floor, VIP Road,
Kolkata 700 054
Tel:[phone]
Fax:[phone]
Email:[email protected]
Mumbai
1/5 Marol Co-op. Industrial Estate
Ltd, Off. Mathurdas Vasanji Road,
Marol, Andheri (East),
Mumbai 400 059
Tel:[phone]
Fax:[phone]
Email:[email protected]
Chennai 7-C Chesney Nilgiri Apartments Tel:[phone]
65,Commander-In-ChiefRoad Fax:[phone]
Chennai 600 105 Email:[email protected]
National
Service Centre
& Works
1/5 Marol Co-op. Industrial Estate
Ltd., Off. Mathurdas Vasanji
Road, Marol, Andheri (East),
Mumbai400059
Tel:[phone]
Tel:+91
-
02
2
-
28596214/6573
Fax:[phone]
Email:[email protected]

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condition management solutions
IRD811 O&M Manual IRD Mechanalysis®Limited
INDEX OF ILLUSTRATIONS
INDEX OF REFERENCE FIGURES
Figure Title Page
1. Periodic Vibration Measurement Save Valuable machine
downtime 1
2. Standard Package of IRD811 2
3. IRD 811 Standard Accessories 3
4. IRD 811 Optional Accessories 4
5. Front view of IRD811 showing all the controls, indicators &
connectors
6
6. A typical vibration measurement datasheet 14
7. A general machinery vibration severity chart (Metric) 16
8. A general Machinery Acceleration Severity Chart 17
9. Dominant Vibration Frequency Chart 18
10. Sample Balancing Vector Diagram 21
11. Battery Replacement Details 23
12. Calibration Test Connections 25
13. Rolling Element Bearing gSE Severity Chart 33
INDEX OF REFERENCE TABLES
Table Title Page
1. Amplitude ranges for IRD811 7
2. Measure units, ranges and meter scale used in IRD811 8
3. Amplitude ranges for IRD811 Vibration Spike Energy Detector 9
4. Tentative guide to vibration tolerances for machine tools 15
5. Dominant machine excitation frequencies and most likely
causes
19

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IRD811 O&M Manual IRD Mechanalysis®Limited
TABLE OF CONTENTS
Sr.No. Chapter Description Page No.
1 INTRODUCTION 1
Getting you started
2 DESCRIPTION 2
2.1 General
2.2 Description of controls indicators and connectors
2.3 Description of Accessories
3 PREPARATION FOR OPERATION 9
3.1 General
3.2 Checking Instrument Operation
3.3 Accelerometer Mounting
3.4 Model IRD544 Inductive Velocity Sensor Mounting
4 OPERATION 13
4.1 General
4.2 Setup
4.3 Vibration Measurement
4.4 Determining Vibration Severity
4.5 Determining dominant Vibration Frequency
4.6 In-Situ Balancing
5 SERVICE 23
5.1 Field Maintenance
5.2 Spare Parts Listing
5.3 Instrument Calibration Procedures
6 SPECIFICATIONS 29
6.1 IRD811 Portable Vibration Meter (Accelerometer)
6.2 IRD511 Accelerometer
7 APPENDIX- A 32
Keeping you going
8 SUPPORT SERVICES 34
Taking you further
9 VIBRATION BASED CONDITION MONITORING SOLUTIONS 38

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1. INTRODUCTION
This instruction manual describes the IRD Mechanalysis model IRD811 Vibration-SPIKE
ENERGYTM Detector. Included in this manual are complete instructions on the preparation,
setup, operation, and service of these instruments. Specifications of the model IRD811 and
the major accessories are provided in Appendix A. Information on the significance of the
measured vibration amplitude levels in displacement, velocity & acceleration and the
procedures for evaluating SPIKE ENERGY
measurements are well covered in the
manual.
The Vibration-SPIKE ENERGY (gSE) Detector is a compact, portable instrument which can
be hand-held for taking vibration measurements or for balancing rotating machinery. This
instrument measures machinery vibration in units of displacement, velocity, or acceleration.
In addition, it also measures the SPIKE ENERGY signals associated with bearing and gear
defects over a very wide range of frequency
The operating conditions which may eventually cause the breakdown of a rotating machine
can be detected from the measurements provided by the Vibration-SPIKE ENERGY
Detector. Periodic measurements of machine vibration, combined with a time log of the
vibration levels, provide the basic information needed for an effective Predictive Maintenance
Program for rotating machinery (Figure 1). If significant increases develop in the machine
vibration levels, then trouble is indicated in the machine. These troubles can then be
pinpointed to specific parts of the machine, and scheduling can be more conveniently
arranged for effecting repairs.
Figure 1 Periodic Vibration measurements save valuable machine downtime
IRD Mechanalysis offers complete training on vibration measurement, analysis, and
balancing
in principal cities throughout the world. For details on the training programs and
other
services that are available, contact your nearest IRD Mechanalysis representative,
or write to
IRD Mechanalysis, Limited.

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IRD811 O&M Manual IRD Mechanalysis®Limited
Getting you started
2. DESCRIPTION
2.1 GENERAL
Thank you for investing in IRD Mechanalysis Vibration Meters. We trust that like many
thousands of users before you will continue to enjoy optimum value from your wise
investment. IRD Mechanalysis Limited is an independent System Integration Company
that designs and manufactures condition monitoring system solutions.
This chapter contains descriptions of the model IRD811 Vibration-SPIKE ENERGY Detector
and the standard and optional accessories available for use with this instrument.
Figure 2 Standard package for IRD 811 Vibration-SPIKE ENERGY Detector
The standard package for the instrument shown in Figure 2 contains the following
accessories:
Standard Accessories Qty Part Number
Accelerometer Multi-purpose, model IRD511 - 100 mV/g, 2.0
Hz - 10 kHz, top connector
Cable Assembly for model IRD811 to IRD511 Accelerometer
sensor - 1.5m rubber insulated, shielded
1 M5111005001000
2 M60021
Stinger Al 225mm Straight for Sensor 1 M24827
Carrying Case 1 M25345
Battery Set, 3 Nos. of 9V, 100mAH Dry Cells 1 M30643
Manual Operating 1 M21072
Magnetic Portable Base fo
r
IRD
A
ccelerometers 1 M24828

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OptionalAccessories Part Number
Inductive Velocity Senso
r
model IRD544 M45260
Cable fo
r
Model IRD544 Senso
r
1.5m M20432
Cable fo
r
Model IRD544 Senso
r
8m M21045
Ma
g
netic Portable Base fo
r
IRD544 Inductive Velocit
y
Sensors M24823
Magnetic Deflecting Shroud fo
r
model IRD544 Senso
r
M60018
Shaft Fish Tail Stick -
A
bsolute Vibration IRD500 Series M24824
Manual Training - IRD Mechanalysis Vibration Technology 1 M51001
2.2 DESCRIPTION OF ACCESSORIES
2.2.1 STANDARD ACCESSORIES
The standard accessories available for use with the model IRD811 are illustrated in figure 3
and are described below
Figure 3 IRD 811 Standard Accessories
A) IRD511 Accelerometer
The IRD511 Accelerometer can be used in any position without loss of accuracy or
sensitivity. It is sensitive to vibrations along the long axis, and can be fastened to rotating
machinery with a M6 stud. It can also be used with a magnetic Portable Base, or hand-held
with or
without the 9-inch extension probe installed.
B) Cable for accelerometer 1.5 m – 2 nos.
The sensor cable connects the accelerometer vibration signal to the 6 pin threaded
Receptacle at the top end of the instrument. In addition, this cable also carries the DC supply
voltage to the internal amplifier of the Accelerometer. The cable connector at the external
A
B
B
C
D
E

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end of the cable connects to the 2-pin receptacle on the end of the accelerometer.
C) Stringer
The Stringer, Part No. M24827 is 225 mm in length and connects to the threaded hole at the
flat end of the accelerometer. It is used to reach inaccessible places on the
rotating
machine when the accelerometer is hand held. The probe should not be used to
measure vibration signals above 16,000 CPM, except in the Bearing-Gear (gSE) mode of
operation.
D) Battery Set, 3 Nos. of 9V, 100mAH Dry Cells
E) Magnetic Portable Base for Accelerometer
The Magnetic Portable Base is used, when required, to hold the accelerometer to the rotating
machine. The magnetic holder is stud mounted to the flat end of the Accelerometer and
provides a strong magnetic force for securing the sensor to the rotating machine. This holder
can be used for vibration measurement of frequency components up to 60,000 CPM. For best
results, it is recommended that silicon grease be applied to the contact surfaces
F) Carrying Case (Not shown)
The Carrying Case provides space for carry or storing the instrument along with the standard
accessories.
G) Manual Operating (Not shown)
The Operating Manual provides instructions on setup, operation, and service of the model
IRD811 Vibration-SPIKE ENERGY Detector. Additional copies of the manual could be
obtained fromIRD Mechanalysis.
2.2.2 OPTIONAL ACCESSORIES
The optional accessories available for use with the model IRD811 are illustrated in figure 4
and are described below.
Figure 4 IRD 811 Optional Accessories
A) IRD544 Inductive Velocity Sensor
The IRD544 Inductive Velocity Sensor is used in place of the accelerometer, when preferred,
For vibration measurement in displacement or velocity. The IRD544 can be mounted in any
position without affecting the accuracy or sensitivity (within the specification limits listed for
this sensor). This sensor is sensitive to vibration along its long axis and can be stud mounted
A
B
C
D
E

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to the rotating machine, used with a magnetic holder, or hand-held to the machine with or
without the extension probe.
B) Cable for IRD544 Sensor 1.5m
The IRD544 Sensor Cable is 1.5 meters in length and connects the sensor vibration
signal to
the instrument. The 6 pin threaded connector is connected to the corresponding
receptacle
at the top end of the instrument. The threaded receptacle at the opposite end
of the cable
connects to the connector on the end of the IRD544 Sensor. This cable may
also be used
to connect the Model IRD811 to a vibration analyzer.
C) Cable for IRD544 Sensor 8m
The Extension Cable is 8 meters in length and when required, is connected to the external
end
of the standard cable to increase the overall IRD544 cable length to 29 feet.
D) Magnetic Portable Base for IRD544 Inductive Velocity Sensors
The Magnetic Portable Base is used to hold the model IRD544 Sensor to the rotating
machine when
required. The magnetic Portable Base stud mounts to the flat end of the
sensor and provides a
strong magnetic force for holding the sensor to the machine. This
holder can be used when
measuring vibration containing frequency components up to
60,000 CPM. For best results, it
is recommended that silicon grease be applied to the mating
surfaces.
E) Magnetic Deflecting Shroud for model IRD544 Sensor
The Magnetic deflecting shroud is used with the model IRD544 Velocity Sensor, when
required, to
reduce the magnetic field effects to 0.0015 inch/second gauss (l00:I reduction)
at 60 Hz.
The magnetic Deflecting Shroud fits over the IRD544 Sensor.
F) Vise Grip Plier (Not Shown)
The Vise Grip Plier is used as an item of convenience, if desired, for holding the model
IRD544 Velocity Sensor to the rotating machine for balancing. The threaded sensor stud
mounts to the pliers and the plier jaws are to be clamped to the rotating machine.
G) Manual Training - IRD Mechanalysis Vibration Technology 1 (MVT1) (Not
shown)
This is a comprehensive vibration training course manual for beginners, practicing vibration
engineers and plant managers to learn and practice the science of vibration diagnostics and
root cause analysis for improved machine uptime and reliability.

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2.3 DESCRIPTION OF CONTROLS, INDICATOR AND CONNECTORS
This section contains descriptions of the instrument controls, amplitude meter, and
connectors. The front view of the model IRD811 is shown on Figure 5.
Figure 5 Front view of IRD811 showing all the controls, indicators & connectors
A) Amplitude range selector
The amplitude range selector is used to select the full-scale amplitude range to be read on
the Amplitude meter. In Metric units, the ranges extend from 1 to 3000 micrometers pk-pk,
or mm/sec pk., In addition, the model IRD811 is also equipped with ISO ranges from 1 to
3000
mm/sec, RMS. The eight amplitude ranges that may be selected on each instrument
model
are listed in Table 1.
C
D
A
F B
E