Load Cell Specification sheets are full of technical information that may not make sense to most.
This guidance document on understanding load cell specification document provides a comprehensive guide to interpreting load cell specification sheets, highlighting critical performance parameters, accuracy indicators, and operational limits.
This guidance document covers key accuracy parameters—such as Static Error Band (SEB), Non-Linearity, Hysteresis, Non-Repeatability, and Creep—and explains them with a focus on their roles in ensuring precise force measurements.
Temperature specifications, including compensated ranges, sensitivity effects, and zero balance shifts, detail the load cell's stability across varied environmental conditions.
Electrical specifications like input/output resistance and insulation resistance address electrical compatibility and interference protection.
In contrast, mechanical specifications outline the load cell's safe overload capacity and material properties, ensuring reliability under diverse operational stresses.
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Understanding how to perform force calculations can be challenging, as not all force calculation equations are straightforward. Different companies often use varying math equations, resulting in different outcomes. This new comprehensive force calculation equation guide, co-authored by Henry Zumbrun, president, and Zach Shearer, software developer, aims to demystify some common math equations found on Morehouse calibration certificates.
This book, Morehouse Force Calculation Guidance, was written to help readers achieve accurate and consistent results in their calibration processes.
Whether you are a seasoned professional or new to the field, this guide is designed to make complex calculations easier to understand and apply. The book is written to simplify what we do to make things easier for clients to reproduce similar results. Not everything is captured in the book, though it is a great starting point.
The book features detailed explanations of many calculations, including non-linearity, hysteresis, and non-repeatability calculations, and clear examples to illustrate each type of calculation.
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Download your free "Decision Rule Guidance, 1st Edition 2024" copy here. This guidebook is written by Henry Zumbrun of Morehouse Instrument Company, Greg Cenker of Indysoft, and Dilip Shah of E = mc3 Solutions. It provides foundational knowledge and practical calculations for using decision rules in measurement uncertainty.
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Mass to Force Guidance: Using mass weights not adjusted for force can result in a large measurement error. The two major measurement parameters typically affected are force and torque. Any measurement involving force should use force. There are acceptable formulas for correcting mass weights to force to enable companies who use mass for these applications to apply known forces. We created this mass-to-force guidance document to help reduce measurement errors associated with using mass weights for applications involving force.
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Force Calibration Guidance for Beginners: If you are new to force calibration or metrology, the information can be overwhelming. This Force Calibration Guidance simplifies everything you need to know. Since force calibration is mechanical in nature, there are many factors to consider. Force Calibration Guidance for Beginners provides a basic understanding of force calibration, the methods and instruments used, industry standards, and best practices.
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There is a common misconception about equipment “being compliant” with ISO 376. Many struggle with how to use an ISO 376 calibration and put together an uncertainty budget. ISO 376 Uncertainty Guidance simplifies everything. ISO 376 Uncertainty Guidance provides guidance for the evaluation of measurement uncertainty in the calibration of force-measuring instruments to support CMC in the scope of accreditation and calibration and/or measurement certificates/reports.
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Morehouse technicians have seen many different load cell issues and have lots of experience identifying and fixing the problems. With this experience, we developed a 7-Step Process for Load Cell Troubleshooting, which will reduce the hours wasted troubleshooting a nonworking load cell to diagnose the problem. Load Cell Troubleshooting Guidance is a must-read for any technician. Click here to download the load cell troubleshooting guidance document.
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Force Calibration Adapters Guidance: Force-measuring instruments are susceptible to errors from improper adapters, misalignment, and not exercising the instrument to full capacity.
Force Calibration Adapters Guidance guides replicating how the force-measuring instrument is used, keeping the line of force-free from eccentric error, and overcoming safety concerns with old adapters.
Several force measurement errors can result from using adapters different from those with which the force measuring instrument was calibrated. The basic premise is that mechanical measurements are being made.
Most adapters used at a laboratory level will be manufactured to keep the line force-free from eccentric error and apply the same stresses from the adapter interface to the force-measuring instrument done during calibration.
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Guidance on Uncertainty Budgets for Force Measuring Devices - A2LA: This provides guidelines for identifying all significant contributions to measurement uncertainty in the calibration of force-measuring instruments. It serves as a means for laboratories to be compliant with A2LA R205 – Specific Requirements: Calibration Laboratory Accreditation Program.
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Calculating Force Uncertainty for force machines. This free document identifies all significant contributions to measurement uncertainty when using a force calibrating machine. Calculating Force Uncertainty describes what is needed to achieve a measurement uncertainty of better than 0.02 % of the applied force.
Mechanical Tensiometer to Pacific Scientific Tensiometer Calibrator Data Sheet: This Tensiometer can also calibrate other manufacturers' tensiometers. In addition to tensiometers, the Morehouse machine can calibrate load cells, force gauges, tension links, and other force equipment under 2,000 lbf. Click here for more information.
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Morehouse Ring Force Gauge Guide is a .pdf file with information about Morehouse ring force gauges for verification and calibration purposes.
The ring force gauge is a simple, reliable, and low-cost force measurement instrument for monitoring a measurement process, calibrating other force-measuring instruments, or verifying a machine in calibration. It is ideal for applications where high-accuracy certified load cells, proving rings, or digital force gages are not
required.
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Morehouse Calibration Software Instruction Manual The Morehouse calibration software manual discusses software installation, troubleshooting, and operation of Morehouse free-to-download software.
The manual discusses data acquisition using the coefficients from the calibration report. This is the most accurate method to obtain force measurement readings.
The mV/V readings are converted to force units, and as such, the "as found" data is always the same as the "as left," meaning adjustments are done using the coefficients from the calibration report.
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LAC 65.1 is currently in stock! This is an exceptionally stable and accurate amplifier with high versatility, the LAC Load Cell Amplifier for Controllers can help make your industrial control or automation system more effective. Download our datasheet here. For more information on our meters, click here.
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G501F Indicator Manual: The Morehouse G501F is a single-channel load cell indicator for force measurement applications. It provides high value at a low cost, delivering reliable performance and high-resolution measurements. The portable unit can operate on AA Alkaline batteries, rechargeable batteries, or the AC adapter. Download the manual here. For more information on the G501F indicator, click here.
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4215 Plus Load Cell Indicator Manual: Use the coefficients to convert mV/V into lbf, kgf, N, and eliminate span calibration errors when you use the calibration equation of several ASTM E74 & ISO 376 calibration reports. More information on our 4215 plus can be found here.
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4215 Plus Polynomial Instructions: Quick set of instructions for use to enter polynomial coefficients into the Morehouse 4215 plus indicator. More information on all of our meters can be found here.
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Morehouse LAC load cell amplifier manual. If you are looking for a load cell amplifier, we believe this one is the best! If you are looking for other load cell indicators, please click here.
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PSD strain gauge indicator manual. The PSD strain gauge indicator is a handheld device with 2 channels and a 2-pt span for each channel. Click here for more information on Morehouse strain gauge indicator options.
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Morehouse Universal Calibrating Machine Manual: Morehouse Universal Calibrating Machines were originally developed to make use of the inherent high accuracy of Morehouse Proving Rings to calibrate working load cells. Today, calibrating machines are used extensively in industrial, government, and military laboratories, not only for the calibration of load cells but for calibrating force transducers, dynamometers, load rings, force links, and other force measurement devices.
Other Morehouse force calibrations to measure compressions and tension forces can be found here.
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Morehouse Hydraulic Hand Pump Morehouse UCM manual: The hydraulic jack is activated by a two-speed hand pump. It is a dual-volume design based on a double-diameter piston. An auxiliary screw piston (Vernier piston) is provided on the pump for the application of minute increments of force. The pump is connected to the hydraulic jack by means of a hydraulic hose assembly with a quick-disconnect coupling.
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Auxiliary Hydraulic Screw Pump Manual: The manual for this Morehouse product. Click here to download the manual.
The Morehouse screw pump (P/N: 66-806) is set up to be used with the Morehouse hydraulic jack along with the existing hand pump or hydraulic power control. The screw pump can provide up to 0.15 inch of stroke on the 100,000-pound hydraulic jack. The screw pump is intended to maintain the load during testing and calibration and will allow the generation of decreasing loads.
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The portable Calibrating Machine Manual is a manual for the operation and maintenance of the Morehouse portable calibrating machine (PCM). This machine is designed for low-force applications of up to 2,000 lbf of force. The machine is designed to eliminate the need for stacking weights and improving ergonomic issues. The manual for Morehouse Portable Calibrating Machine can be found here.
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Benchtop Calibrating Machine Manual: The benchtop calibrating machine is accurate to better than 0.05 % of applied force and is used to calibrate force-measuring instruments up to 10,000 lbf. More information on our force machines can be found here.
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Ring Force Gauge Manual: The Ring Force Gauge is relatively simple to operate. If maximum accuracy is desired, the Ring Force Gauge should be placed near the location where it is to be used and allowed to stabilize at the ambient temperature that will prevail during use. Deviations from the temperature at which the Ring Force Gauge was calibrated will cause errors of approximately 1% for every 70 degrees F
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The Digital Ring Force Gauge Manual is Attached Below:
The Digital Ring Force Gauge is relatively simple to operate. If maximum accuracy is desired, the Digital Ring Force Gauge should be placed near the location where it is to be used and allowed to stabilize at the ambient temperature that will prevail during use. Deviations from the temperature at which the Digital Ring Force Gauge was calibrated will cause errors of approximately 1% for every 70 degrees F.
A Digital Ring Force Gauge consists of a load ring that deflects under compressive or tensile forces. The deflection of the ring is continuously measured by a digital indicator mounted inside the ring. The indicator is programmed by the Morehouse primary force calibration laboratory and interprets the deflection values to direct calibrated force values and displays on the digital screen. The indicator displays the force in the engineering units as specified by the user at the time of purchase.
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@Digital Ring Force Gauge Manual
Our Morehouse Proving Ring Manual: Morehouse Proving Rings are recognized as the premier force standard wherever highly accurate force calibrations are performed. This reputation has been earned by uncompromising conformance to the standards originally established and maintained by the United States National Institute of Standards & Technology.
Anyone wanting to learn more about Morehouse Proving Rings should visit our Proving Ring Page here.
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Obsolete - Proving Ring Electric Reed Vibrator Manual
Below is an operation and instruction manual for the obsolete proving ring electric reed vibrator. Newer proving rings are made with a digital indicator. Older proving rings can be upgraded to digital by replacing the internal micrometer, dial, read, and electric red vibrator.
More information on our digital rings and retrofit options can be found here.
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Obsolete - CellMite Digital Signal Conditioners Manual
This info is kept for anyone needing it. We have much better solutions for those needing an indicator for their load cell. USB solutions, Software solutions. Please click here for a list of indicators we currently offer
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