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Accelerometer MountingAccelerometer MountingHardware and InstallationHardware and Installation

TechniquesTechniques


Mounting ConsiderationsMounting Considerations➤ Is the location for monitoring in a safe,

accessible location?

➤ Can the accelerometer be permanently mounted?

➤ Can the machine be faced properly?

➤ Mounting location

➤ Where is the best location?

➤ Are there obstacles?

➤ What are the frequencies of interest?


Accelerometer MountingAccelerometer Mounting

➤ Hardware Selection

➤ Mounting Location

➤ Surface Preparation

➤ Mounting Resonance's


Mounting Technique DeterminesMounting Technique Determinesthe Mounted Resonancethe Mounted Resonance


Probe TipsProbe Tips

➤ Use on difficult to reach areasand aluminum motor frames

➤ Do not use for measurementsless than 10 Hz

➤ Mounted Resonance 800 - 1500 Hz


Magnets for Curved SurfacesMagnets for Curved Surfaces➤ Use on irregular and curved

surfaces

➤ Magnet made of Alnico 5

➤ Includes 1/4-28 Stud

➤ Mounted Resonance 3000 to 7000 Hz


Magnets for Flat SurfacesMagnets for Flat Surfaces

➤ Use on flat surfaces or magnetpads

➤ Magnet made of Rare EarthMaterial

➤ Some have an integral 1/4-28mounting stud while othershave a 1/4-28 Tapped Hole

➤ Other stud sizes are available

➤ Mounted Resonance 5000 to 10,000 Hz


QuickLINKQuickLINK®® Mounting Pads Mounting Pads

➤ Mounts quickly like amagnet

➤ Uses dual lead threadsfor less than 1 full turn

➤ High mountingresonance like a stud

➤ Reduces cable and wristfatigue


Adhesive Mounting PadsAdhesive Mounting Pads

➤ Provides adequatefrequency response

➤ Pad available for mostcommon thread sizes

➤ Pad available for tappedholes for use withaccelerometers that usecaptive screws


Adhesive MountingAdhesive Mounting➤ Spot Face Surface

➤ Abrade Surface

➤ Clean Surface

➤ Use Proper Adhesive➤ VersiLock®

406 / Cat 19➤ Loctite® Depend➤ Loctite® Liquid Metal

➤ Use Proper Mix Ratios

608 R.1

Integral Stud

Isolation Layer

Epoxy Filler


Mounting StudsMounting Studs

➤ Provides highest frequencyresponse

➤ Various Stud sizes areavailable

➤ Captive Screws with areavailable with variousmounting threads


Stud MountingStud Mounting

➤ Tap Drill Hole toProper Depth

➤ Spot Face SurfacePerpendicular to Hole

➤ Tap Proper Threads

607.cdr R.2

.004 C

.001

-C-

> 1.26"

0.735"

S urfac eFac ing

63

0.25"

➤ Ensure Flatness, Surface Texture, andPerpendicularity


Advantages of PermanentlyAdvantages of PermanentlyMounted SensorsMounted Sensors

➤ Safety

➤ Convenience

➤ Repeatability of Data

➤ Faster Data Collection

➤ Reduces Auto Collection Errors


Coupling FluidsCoupling Fluids➤ Coupling fluids should

be used between thesensor and mountingsurface interfaces

Coupling fluidsinclude:

" Silicone Grease

" Oil

" Petroleum Jelly/ Beeswax


Mounting ResponsesMounting Responses

Probe Tip

Curved Surface Magnet


Mounting ResponsesMounting Responses

QuickLINK®

Flat Magnet


Mounting Resonance'sMounting Resonance's➤ Mounting Resonance's can amplify high

frequency signals and increase overload

➤ Mounting Resonance's can appear to besevere rolling element and gear mesh faults

KNOW YOURKNOW YOURMOUNTINGMOUNTING

CONDITIONS!CONDITIONS!


Mounting LocationMounting Location

➤ Mount in the load zone

➤ Mount as close to the pointof interest

➤ Low profile, side exitdesigns for confined areas

➤ Side exit allows for neatcable routing


Switchable Junction BoxesSwitchable Junction BoxesJunction Boxes:Provide connectioncenters for terminatingcables and connectingto Portable DataCollectors. They canused in industrialapplications and can bepowered.

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