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Clevis Pin Optional Features
Strainsert offers a variety of load pin design options to fully optimize the
force measurement solution.
Dual Bridge Circuits:
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Dual bridge gaging provides two independent strain gage circuits.
This option is advantageous for controlling multiple feedback
systems as well as providing redundant force-measuring capability.
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Clevis Pins Optional Features
Online Catalog |
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 Dual Bridge Specification Drawing |
4-20 ma Internal Amplifier:
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Integral signal conditioning, built into the pin, provides
a high level 4 - 20 ma output, while maintaining pin ruggedness and
durability. This option is ideal for noisy environments or where long
cable length are required.
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Clevis Pins Optional Features
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| Internal Amplifier Specification Drawing |
Bi-Axial Clevis Pins:
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When both the magnitude and the direction of the load are unknown,
the vector measurement is possible using a Strainsert force sensing pin
instrumented with two strain-gage bridges oriented 90° apart around the
circumference. The cross-section of the pin shows the two sets of strain gages,
the Y bridge will sense force component Py, while the X bridge will sense forces
in the Px direction, 90° to Py. The outputs from the two bridges, Ex and Ey,
can be measured and the resultant force magnitude and direction can be
determined:
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Clevis Pins Optional Features
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P = K * the square root of Ex squared + Ey squared.
Where K = constant derived from calibration data
Direction: Ø = inverse tangent (Ey / Ex)
| Biaxial Clevis Pin Specification Drawing |
| · Bridge Resistance - |
350ohm (Nom.) |
| · Excitation - |
12V ac or dc (Max.) |
| · Non-Repeatability - |
±0.15% F.S.O (Nom.) |
| · Non-Linearity - |
±0.50% F.S.O (Nom.) on Primary axes* |
| · Pin Material - |
Stainless Steel 17-4; or higher strength stainless or alloy steels |
| · Output Signal - |
2-mv/V (Nom) custom designs may effect output |
| · Sheave applications with variable angles |
· Loader Buckets |
| · Any pin joint with rotating loading members |
· Hydraulic Actuators |
| · Research and Development |
· Mooring Lines |
| · Aircraft component testing |
· Landing gear |
| · Pin Diameters from 1" and Larger |
· 5 Step loading calibration on primary X and Y axes (2 runs each) |
| · Full Scale Endpoint Checks at 45 degree increments or specified range of interest |
· Force Component Resolution and Direction Capability |
| · Internal Strain Gaging |
· 2 Year Warranty |
* Certain custom pin geometry and bridge to bridge effects (cross-talk) may result in a measurement accuracy of 5% full scale or
greater. For such cases, Strainsert can provide a correction algorithm to minimize errors.
| · Submerged/High Pressure |
· Specials from .5" to 1" diameter |
| · 4-20 ma Output |
· System Calibration |
| · Permanently Attached Cable |
· High Strength Material for Additional Force Capabilities |
Deep Sea Clevis Pin System:
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The Strainsert deep sea/high pressure Clevis Pin provides the ability to measure
force at clevis joints under high pressure conditions. Complete systems are available,
and include the instrumented Clevis Pin, cabling, and a digital display indicator.
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Clevis Pins Optional Features
Online Catalog |
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| Deep Sea Clevis Pin Specification Drawing |
| · Output - |
4-20 ma Loop Power or mv/V |
| · Input - |
13 to 28V dc (4-20 ma Systems), 10V max excitation (mv/V Output) |
| · Non-Repeatability - |
±0.15% F.S.O (Nom.) |
| · Non-Linearity - |
±0.50% F.S.O (Nom.) |
| · Operating Temperature - |
15 degrees F to 150 degrees F |
| · Storage Temperature - |
-40 degrees F to 160 degrees F |
| · Receptacle - |
Burton 55 Series (316 Stainless), Brantner or Customer Specified |
| · Cable Assembly - |
High Pressure, Marine (Lengths as Required) |
| · Pin Material - |
Monel, or 17-4 Stainless (Passivated, or other) |
| · Off-Shore Platform Crane, Winch Hook and Sheave Attachments |
· Research and Development |
| · Deep Sea Excavation and Trenching Systems |
· Towline Monitoring |
| · Marine Research and Development |
· Mooring Lines |
| · Uni-Axial, Bi-Axial (Shown above) and Dual Bridge Force Sensing |
· Integral Signal Conditioning |
| · System Calibration (5 Steps 2 Runs |
· Indicator Capabilities |
| · 1500 psi Standard Rating |
· Custom Fit |
| · Internal Strain Gaging |
· 2 Year Warranty |
Intrinsically Rated Force Sensing Clevis Pins
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The Strainsert intrinsically rated force sensing clevis pin provides force measurement
capabilities in hazardous environments. They are rated for Class I, Division 1, Group
A, B, C, D - Class II, Division 1, Group E, F and G. They also have a T4 temperature rating - Demko Approved EEx ia IIC T4.
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Clevis Pins Optional Features
Online Catalog |
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| Intrinsically Rated Clevis Pin Specification Drawing |
Intrinsically Rated Clevis Pin Specification Drawing |
| · Explosives |
· Oil |
| · Chemical |
· Engine Tests |
| · Mining |
· Aerospace |
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Strainsert - for superior internally gaged force transducers.
Strainsert stands for:
- Product Quality
- Knowledgeable Technical Staff
- Custom and Standard Designs
- Customer Service
- Comprehensive Testing
Contact Strainsert
For information on load pins, force sensing bolts, load cells, tension links or our high quality custom products, Contact Us for further assistance.
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