Force Calibration for Technicians eBook, available on Amazon, contains guidance on factors that ensure repeatable results through the entire measurement chain. For force-measuring devices, there are various mechanical and electrical interfaces that matter. At the time of calibration, these consist of:
Force Calibration for Technicians is also available for free by filling in the website form or contacting Morehouse @ email@example.com
We buy a great force standard, we demonstrate metrological traceability, & we make a force measurement. Without the proper compression and tension adapters, the errors can be over 10 times that of the specification. This article discusses the importance of compression and tension adapters and provides solutions for better calibrations using the appropriate compression and tension adapters.
Portable Force Machine Solves Several Measurement Management Headaches. This paper examines several “bad” measurement practices, such as using multiple technicians to calibrate instruments (including hand-held dynamometers). Such practices include using a free-floating cable and stacking weights to calibrate a cable tensiometer. We discuss how a portable force calibration machine can be used to improve efficiency and solve several measurement challenges. Click Here to read our portable force machine paper.
Are you having problems figuring out all of the requirements to calculate a CMC for force uncertainty or torque uncertainty? This excel sheet provides a template to calculate CMCs (force uncertainty) with explanations of everything required to pass an ISO/IEC 17025 audit.
Morehouse Free Force Uncertainty Spreadsheet to Calculate Calibration and Measurement Capability Uncertainty
Decision Rules can be difficult to understand, and this worksheet will help simplify things by focusing on measurement risk. The Morehouse Measurement risk TUR calculator tool will cure those measurement headaches allowing anyone to calculate TUR properly and Measurement Risk Correctly. Use this tool to input parameters such as accuracy requirement, resolution, measurement uncertainty, TUR, and repeatability with other error sources.
The TUR calculator will calculate how good the reference standard uncertainty needs to be to maintain test uncertainty (TUR) ratios and will allow the end-user to input their own risk tolerances. The TUR Calculator can be found here.
Mass to Force Conversion tool solves issues with results not agreeing because the same units are not being used. This mass to force spreadsheet tool was created to help convert mass to force and mass to force.
ASTM E74 Load Cell Selection Guide
Need to know what 0.005 %, and 0.01 % of full scale means when calibrating to a specified standard such as ASTM E74? This spreadsheet breaks these numbers down into a % of reading at various force points throughout the calibration range. The ASTM E74 load cell selection guide is a free excel spreadsheet designed to simplify the selection of ASTM E74 load cells. Click here to download the load cells selection guide.
Morehouse General Information about our force calibration and services. The Morehouse General Information.pdf is a simple to use document highlighting some of what Morehouse offers to see if we might be a good fit as far as your needs.
Morehouse General Information A4 about our force calibration and services. The Morehouse General Information A4 .pdf is a simple-to-use document highlighting some of what Morehouse offers to see if we might be a good fit as far as your needs. Morehouse General Information A4 pdf Formated for International Markets. Click here to download a copy of Morehouse General Information A4 pdf.
Accredited Force Calibration Services information, including a range of Accredited Force Calibration Services provided by Morehouse. These include our deadweight capability, ASTM E74, ISO 376, and information about how we can provide the lowest force uncertainties for your equipment. Click here to download our accredited force calibration services flyer.
Morehouse offers force training courses and torque training, both virtual and in-person. Our force training courses are multiple days and teach the participant the fundamentals of force calibration. The force training course is excellent for all skill levels as we cover what matters most and what many people get wrong (measurement errors, troubleshooting, adapters, uncertainty, technique). Download our information on force training courses here.
Capability Statement for Morehouse Instrument Company. Cage code 90562. Simple One-Page Capability Statement for Morehouse.
The new dimension to resolution paper. This paper stresses the importance of considering the unit under test resolution in a measurement uncertainty budget. Download our the new dimension to resolution paper here.
Converting a mV/V Load Cell Signal into Engineering Units is a common need in the industry. This paper discusses the pros and cons of how meters handle Converting a mV/V Load Cell Signal into Engineering Units. The paper discusses significant error sources and best practices for using an indicator with a mV/V signal, and we offer guidance on some indicators that can convert that signal into engineering units.
A paper on the Common Measurement Errors in Weighing. Anyone calibrating or using crane scales, load cells, dynamometers, truck scales, and aircraft scales will benefit from learning about the various common errors in weighing. Download our Common Measurement Errors in Weighing paper here.
Several organizations and publications reference or insist on maintaining a 4 to 1 TUR (Test Uncertainty Ratio) without understanding the level of risk that they may be subjecting themselves to. The general thought is if the lab performing the calibrations has standards at least four times better than what they are calibrating that everything is good. This paper discusses TUR, PFA Risk, and why the location of the measurement matters. We will discuss two managed risk guard banding methods (5 & 6) found in the ANSI/NCSL Z540.3 Handbook. We will show that a 4 to 1 TUR is not enough and can result in a 50 % risk.
The differences Between ASTM E74 and ISO 376 can be confusing. Morehouse has been performing both ASTM E74 and ISO 376 calibrations for more than fifteen years. We have been calibrating in accordance with the ASTM E74 standard since its introduction in 1974, and performing ISO 376 calibrations since sometime in early 2000. Until recently, we assumed that the rest of the world and force community knew that the standards were completely different and that either standard could not be substituted for another. This paper explains those differences in more detail.
What is measurement risk? Measurement decision risk is the probability that an incorrect decision will result from a measurement. Are you telling your customers instrument passes without considering measurement uncertainty? If taken to court, are your measurement defensible? This paper examines the proper way to make statements of compliance. Download our what is measurement risk paper here.
Have trouble understanding Uncertainty Propagation for Force measurement and how to put together a budget? This paper examines all of the components required to put together a full calibration and measurement capability (CMC) reviewed by Accreditation Bodies for your scope. This Uncertainty Propagation for Force guide to calculating force measurement uncertainties & was published in Cal Lab magazine. Download our Uncertainty Propagation for Force paper here.
ASTM E74 Method A and Method B—for the treatment of reducing the ending zero. Method A defines the deflection calculation as the difference between the deflection at an applied force and the initial reading at zero force. Reducing the ending zero Article written by Henry Zumbrun for Cal lab Magazine 2014.
Load cell dual-range calibration errors happen when a load cell is not loaded to full capacity. The molecules inside the load cell do not react potentially causing an increased error. What you need to know about molecule excitement decline and dual-range calibrations. Article from Test Magazine May 2016 issue.
If you are new to force calibration or metrology, the information can be overwhelming. Force Calibration Guidance for Beginners 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.
Force calibration guidance for Technicians and Quality Managers covers more advanced force calibration topics including loading conditions, adapters, verification of the adjustments, indicators, measurement uncertainty, and selecting the right calibration method. This force calibration guidance will help anyone correct force measurement errors, resulting in better force measurements.
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.
Potential Measurement Errors in Force Calibration Article covers the most common errors one must know when making calibrating force instrumentation.
Potential Measurement Errors in Force Calibration in published test magazine from Oct-Nov 2015 issue.
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.
Force-measuring instruments are susceptible to errors from improper adapters, misalignment, and not exercising the instrument to full capacity. Force Calibration Adapters Guidance provides guidance for replicating how the force-measuring instrument is used, keeping the line of force-free from eccentric error, and overcoming safety concerns with old adapters.
Uncertainty Budgets for Force document 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.
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.
3 Bar vs 2 Bar Universal Calibrating Machines Paper describing the difference between these two designs. The paper compares the repeatability and reproducibility characteristics and examines if there is a significant difference in the performance and measurement uncertainty between the two designs.
Morehouse Terms of Sale document describes all of the legal requirements and best recommended practices of doing business with Morehouse.
Have problems selecting the right load cell? Our load cell selection guide walks you through the process of selecting the right load cell for your needs whether a calibration standard for ASTM E74 and ISO 376 calibrations, ISO 7500, or ASTM E4, or maybe a load cell to measure force in a press, machine, or any other application.
Our Ultra Precision Shear Web Load Cell is the premiere load cell for ASTM E74 Class AA and ISO 376 Class 00 calibrations.
Our Precision Shear Web Load Cell is the premiere load cell for ASTM E4 Class A and ISO 376 Class 0.5 calibrations.
Our Calibration Shear Web Load Cell is the best value load cell for ASTM E4 Class A and ISO 376 Class 1 calibrations.
600k Mini Load Cell - Why carry heavy load cells and hurt your back when there is a high-performance (0.01 % of full scale) alternative that weighs 26 lbs (12.5 kgs)? This mini 600k load cell is perfect for ASTM E4 calibrations on compression testing machines. For more information download our datasheet here.
Morehouse High Capacity Load Cells are the perfect fit for ASTM E7 and ISO 7500 calibrations. They can be used as reference standards for ASTM E74 and ISO 376 as well as they are known to be better than 0.01 % of full scale on most modes.
Morehouse Compression & Tension Load Cell. These compression and tension load cells are known to be better than 0.02 % of full scale. They are an economical choice for ASTM E4 and ISO 7500 calibrations.
Morehouse Compact Compression Load Cells fit in small spaces with excellent performance. Most achieve well better than 0.01 % of full-scale accuracy. Morehouse Compact Compression Load Cells have extremely low uncertainties when calibrated with Morehouse Deadweight primary standards. For more information, please click here to download our specification sheet.
Morehouse 60K Load Cell with 1.25"-12 threads is a great choice for calibration to ASTM E4 and ISO 376. These load cells are better than 0.02 % of full scale, making them a great choice to perform full range calibrations.
Morehouse Force Calibration Setups and Adapters show the proper way to align load cells with the right adapters to minimize loading errors and improve reproducibility. In force calibration, the wrong adapters and setups can produce errors 20 - 50 times of what is expected.
The Morehouse Universal Calibrating Machine is a tested 50-year plus force machine capable of calibrating load cells, force gauges, crane scales, tension links, and almost all force measuring instrumentation. For more information about this and several other Morehouse machines, please click here.
Universal Calibrating Machine Adapters and Accessories are Calibration accessories and adapters for the Morehouse UCM machine. Please visit https://mhforce.com/product-category/calibrating-machine-accessories/
Morehouse Deadweight Primary Standard Calibration machines are accurate or known to be within 0.002 % of applied force. They are the most-accurate machine to measure forces and calibrate load cells meeting ISO 376 Class 00 & ASTM Class AA requirements. to learn more, please visit https://mhforce.com/product/deadweight-calibrating-machine/
Morehouse Portable Calibrating Machine eliminates the need to stack weights and improves ergonomic issues. For more information, please visit https://mhforce.com/product/portable-force-calibrating-machine-2/
Morehouse Portable Calibrator Machine PCM offers a safer and faster way to calibrate low-capacity force instruments (under 2000 lbf). The machine is designed to eliminate manual lifting weights to calibrate several load cells. Most commonly S type load cells.
More information on the Morehouse Portable Calibrator Machine PCM is found here
Morehouse Benchtop Calibrating Machine for force instruments under 10,000 lbf is an easy-to-use compact machine used for force calibration. The machine can achieve better than 0.05 % of applied force and is suitable to calibrate load cells, crane scales, force gauges, and other force measuring instrumentation. For more information please visit https://mhforce.com/product/benchtop-force-calibrating-machine/
Our portable Mechanical Tensiometer Calibrator is perfect for calibrating instruments under 2,000 lbf, such as cable tensiometers, load cells, force gauges, and more. Please visit https://mhforce.com/product/cable-tensiometer-calibrator/
Morehouse Tensiometer Calibrator to calibrate Pacific Scientific Tensiometer and 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.
Morehouse Ring Force Gauge Guide is a .pdf file with information about Morehouse ring force gauges for verification, and calibration purposes.
Aircraft Scale Calibration for several aircraft scales requires one to replicate the footprint of the tire. Not doing so may produce out-of-tolerance conditions or a very high bias. Information on our aircraft scale calibration services can be found here. Information on Aircraft scale calibration machines can be found here.
G501F Digital Load Indicator is a simple-to-use load cell indicator that can be used with a single compression and tension load cell. The meter offers a low cost and high value having over 5 span points to pair with almost any digital force measuring device. Click here to learn more about the G501F Digital Load Indicator and other Morehouse
Morehouse Calibration Software Instruction Manual
The morehouse calibration software instruction manual discusses software installation, troubleshooting, and operation of Morehouse free-to-download software.
Morehouse High Accuracy Digital Indicator uses the USB computer port to power and reads almost any load cell. This 6-wire sensing analog-to-digital USB converter offers the use of our Morehouse direct reading software, with multiple load cell configurations, longer cables, and lower uncertainty. The High Accuracy Digital Indicator provides non-linearity less than 0.002 % of full scale, +/- 20-bit system, with 172 A/D conversions per second. Coefficients from fitted curves are used to convert mV/V to engineering units (lbf, kgf, and Newtons). Click here for more information.
LAC 65.1 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.
LAC 65.1 is currently in stock!
G501F Indicator Manual from Morehouse. 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.
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.
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 up to 2,000 lbf of force. The machine is designed to eliminate the need for stacking weights and improving ergonomic issues. Morehouse Portable Calibrating Machine Manual can be found here.
Morehouse Force Proficiency Test Rental Kit can help satisfy ISO/IEC 17025:2017, Section 7.7.2 requirement for interlaboratory comparisons. Our Force Proficiency Test Rental Kit is perfect if you need to satisfy your 4-year Force Proficiency Test requirement if you need to validate your force measurement uncertainties, or need to prove the competence of a new technician. Need more information, click here.
Morehouse Concrete Compression Machine Calibration Kit is perfect for ASTM E4 calibration of testing machines. The Concrete Compression Machine Calibration kit has several configuarable options. Please click here for more information.
Morehouse Quick Change Adapters for Tension force calibration is based on ISO 376 specifications and simplify Tension Calibration Setups for load cells, crane scales, Tension Links, Dynamometers, and much more. For more information on our Quick Change Adapters for Tension, and other adapters, please click here.
Morehouse Clevis Kits 12k lbf simplifies TensionSetups for crane scales, Tension Links, Dynamometers, etc. Tension links can have huge errors from not using the correct pin size. These kits feature one set of clevises and multiple pins with various diameters, protective rollers for the pins subjected to concentrated loading from shackles, precision manufacturing to ensure levelness, alignment, and manufacturer’s specified pin diameters, can be used with Quick-Change Tension Members, and Adapters for improved alignment and easier setup, fast changeover between units under test by using the same clevis and changing the pins. All parts are rust-resistant. More information can be found here.
Morehouse Clevis Kits 30k lbf simplifies TensionSetups for crane scales, Tension Links, Dynamometers, etc. Tension links can have huge errors from not using the correct pin size. These kits feature one set of clevises and multiple pins with various diameters, protective rollers for the pins subjected to concentrated loading from shackles, precision manufacturing to ensure levelness, alignment, and manufacturer’s specified pin diameters, can be used with Quick-Change Tension Members, and Adapters for improved alignment and easier setup, fast changeover between units under test by using the same clevis and changing the pins. All parts are rust-resistant. More information can be found here.
Morehouse Clevis Kits 60k lbf simplifies TensionSetups for crane scales, Tension Links, Dynamometers, etc. Tension links can have huge errors from not using the correct pin size. These kits feature one set of clevises and multiple pins with various diameters, protective rollers for the pins subjected to concentrated loading from shackles, precision manufacturing to ensure levelness, alignment, and manufacturer’s specified pin diameters, can be used with Quick-Change Tension Members, and Adapters for improved alignment and easier setup, fast changeover between units under test by using the same clevis and changing the pins. All parts are rust-resistant. More information can be found here.
Morehouse Clevis Kits 120k lbf simplifies TensionSetups for crane scales, Tension Links, Dynamometers, etc. Tension links can have huge errors from not using the correct pin size. These kits feature one set of clevises and multiple pins with various diameters, protective rollers for the pins subjected to concentrated loading from shackles, precision manufacturing to ensure levelness, alignment, and manufacturer’s specified pin diameters, can be used with Quick-Change Tension Members, and Adapters for improved alignment and easier setup, fast changeover between units under test by using the same clevis and changing the pins. All parts are rust-resistant. More information can be found here.
Morehouse 30k lbf Tension Adapter Value kit was based on ISO 376 specifications and simplifies Tension Calibration Setups for load cells, crane scales, Tension Links, Dynamometers, and much more. For more information on our 30k lbf Tension Adapter Value kit, and other kits, please click here.
Morehouse 60k lbf Tension Adapter Value kit was based on ISO 376 specifications and simplifies Tension Calibration Setups for load cells, crane scales, Tension Links, Dynamometers, and much more. For more information on our 60k lbf Tension Adapter Value kit, and other kits, please click here.
Morehouse 120k lbf Tension Adapter Value kit was based on ISO 376 specifications and simplifies Tension Calibration Setups for load cells, crane scales, Tension Links, Dynamometers, and much more. For more information on our 120k lbf Tension Adapter Value kit, and other kits, please click here.
Button Load Cells Adapters can improve the performance of many Button Load Cells by a factor of 5. Morehouse has done testing, written articles, and made the best adapters to keep the line of force pure. Our Button Load Cells adapters guide has more information and can be found here
Morehouse can help lower your load cell sensor measurement uncertainty by calibrating these force sensors using standards up to 20 times more accurate than commercial calibration laboratories. Please click here for more information on our load cell sensor calibration services. Click here for a list of our available load cell sensors we offer for sale.
Morehouse can provide a wireless load cell or convert any load cell into wireless with different interface options. A wired interface to a load cell can present several challenges in environments that span large areas. Therefore a wireless load cell might be beneficial. To learn more about our wireless options please contact sales @ firstname.lastname@example.org. To read a case study on a full wireless load cell solution with adapters, please click here.
What happens when a load cell experiences side loading? This case study examines how too many adapters can contribute to side loading problems and ultimately high errors. Morehouse focuses on how to eliminate excess adapters and use the proper adapters to minimize side loading errors. Our case study can be found by clicking here.
This is a one-sheet Verification For Morehouse Calibration Software verifies the software converts the mV/V values properly. The end-user must verify they have entered the coefficients correctly
Morehouse software for 4215 V1.0.6: 2022 version Morehouse software for 4215, uses the coefficients from the calibration report, typically ASTM E74 or ISO 376 report to ensure the mV/V values can be converted to engineering units. Keeping the calibration in mV/V is important as any adjustments are made by issuing new coefficients at the time of calibration. This keeps the cost down and allows the end-user the ability to easily compare the stability from one calibration to another.
Morehouse software for 4215 also allows adjustments to other engineering units such as N, kN, kgf, & lbf. In addition, the software allows for multiple load cells to be summed together for weighing or other applications where each load cell can be monitored as a percentage of the overall applied load. This feature may be useful for calibrating pipe testers, large force machines requiring several load cells, or checking the center of gravity.
In addition, Morehouse software for 4215 can convert force to mass values such as lb, kg, grams, and ounces which is helpful for the calibration of scales.
Morehouse force software verification excel sheet. The excel sheet verifies the force software from Morehouse. The sheet includes formulas and screenshots to prove the Morehouse force calibration does what it should. Download our force verification sheet force software verification.
V1.3.5: Force calibration software for use with Morehouse 4215, HADI, or DSC-USB Indicators. Read two indicators at the same time. The software uses coefficients from ASTM E74 calibration and displays engineering units as well as capturing data with a remote control device and pausing readings etc.., Reporting section helps with ASTM E4 field calibrations. Must have Morehouse 4215, HADI, or DSC-USB indicator to use this software.
Morehouse torque installer software V1.2: Morehouse torque installer software is the universal version for torque calibration which allows for lbf ft and N m coefficients to be entered. PEAK HOLD and new windows 8/10 drivers on this version. Inverse B0 coefficients.
Want to know how we are calculating expanded uncertainty on force and torque certificates? This spreadsheet has all of the formulas that comply with ILAC-P14:09/2020 ILAC Policy for
Measurement Uncertainty in Calibration at the time of calibration. Calculating Expanded Uncertainty is drastically simplified and easily explained with this tool
The ASTM E74 Coefficient Calculator is free software from Morehouse to help calculate higher-order coefficients per ASTM E74 and ISO 376. ASTM E74 Coefficient Calculator contains macros because it uses visual basic coding to generate the coefficients.
Measurement Risk Calculator presented at A2LA tech forum and NCSLI, this easy-to-use Measurement Risk Calculator tool allows one to determine the effect of the resolution of an instrument on the overall measurement uncertainty and risk. One can use this tool to analyze the effects on TUR and measurement risk as well.
Probability of False Accept - Free Excel Worksheet. Decision Rules can be difficult to understand, but this worksheet will help. Use this tool to input parameters such as accuracy requirement, resolution, measurement uncertainty, and repeatability with other error sources. It will help make decisions on equipment, such as: Should I buy a device with better resolution? Do I need my calibration provider to have better measurement uncertainty than what I am getting? It also provides different Methods, using different decision rules (Method 5 and 6). The PFA calculator contains macros.
Spreadsheet to print Load Cells Load Tables. When working to ASTM E4, sometimes it's easier to have printed tables that have set to force points.
Proving Ring Load Tables spreadsheet to print load tables for Proving Rings. This is used for ASTM E74 calibrations where the end-user does not want to use a computer and wants to print tables to interpolate force points. The proving ring load tables sheet can be downloaded here.
Proving Rings Used as Standards is a Free excel sheet to correct for temperature and tare weight when using Morehouse Proving Rings. Calibration load points for Proving Rings used as standards in a Morehouse UCM. Click here to download Proving Rings Used as Standards excel sheet.
A and B Coefficients for Load Cells. This free Load table generator for Morehouse A and B Coefficients is found on calibration certificates. This useful tool allows you to print load tables
Force Conversion Spreadsheet to Convert LBF to KGF and N for Calibration load points in compression and tension.
Force Calibration Made Easy helps anyone new to metrology to understand the basics of force measurement. Even seasoned metrologists may learn something new from force calibration for beginners part 1. Morehouse Instrument Company has shared tremendous knowledge throughout the years with blogs, technical papers, and webinars. This education aligns with our purpose, to create a safer world by helping companies improve their force and torque measurements. To simplify things, this two-part article was written to help anyone new to force measurement. Click here to read part 1.
Cellmite 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
Installation instructions for Morehouse software. This software uses the B coefficients from the calibration report and converts the mV/V readings into engineering units. Every time a new certificate is issued, the coefficient files must be changed. This software helps automate the calibration process and is used with the Morehouse 4215, HADI, and DSC indicators.
V1.4.2: This is the universal version which allows for LBF, KGF, N, kN coefficients to be entered. PEAK HOLD and new windows 8/10 drivers on this version. Inverse B0 coefficients.