Morehouse Calculation Guidance: Morehouse Calculations found on Certificates of Calibration

Henry Zumbrun · Zach Shearer

The Morehouse Guidance Series Book 1 · Morehouse Instrument Company

About this ebook

Understanding calibration calculations can be challenging, as not all calculations on calibration certificates are straightforward. Different companies often use varying math equations, resulting in different outcomes. This new comprehensive guide, co-authored by Henry Zumbrun, president, and Zach Shearer, software developer at Morehouse Instrument Company, aims to demystify some common math equations found on Morehouse calibration certificates.

This book, Morehouse 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. Morehouse Calculation Guidance is written to simplify what we do and make things easier for clients to reproduce similar results. Not everything is captured in the book, though it is a great starting point.

Morehouse Calculation Guidance features detailed explanations of many calculations, including non-linearity, hysteresis, and non-repeatability calculations, and clear examples to illustrate each type of calculation.

Ratings and reviews

Really helps clarify the calculations found on Morehouse certificates. A must read if you really want to dig deep into where this stuff comes from.

This guide is a comprehensive and practical resource for anyone involved in force measurement and calibration.

About the author

Henry A Zumbrun has over 25 plus years of industry experience in 

Metrology, specifically in force and torque measurements. From its 

founding in 1920 to the present time, Morehouse Instrument Company 

has grown from a local machine shop to one of the most respected 

names in the calibration and measurement world. Henry likes to think 

he has helped make an impact with force and torque measurements by 

helping several organizations be better and make better 

measurements.  

Henry is passionate about helping any lab make better force 

measurements. He is also passionate about Metrology, Training, 

Outreach, and running a business based on doing what’s right. He is 

aligning Morehouse so that everyone comes to work with a purpose. 

That purpose is simple: We create a safer world by helping companies improve their force and torque 

measurements. We all work as a team and help improve what we can control.  

Henry supports continuous learning and, along with several degrees, is a Six Sigma Blackbelt, Lean 

Champion, and Stanford Strategy Business Strategy Class graduate. He has completed the LMI 

leadership program, Sandler Management Program, Sales Training, and OSHA 10. He is a current Vistage 

member and constantly learns from several mentors and his business coach how to make a meaningful 

impact beyond what a typical business would do.  

Henry has taught various classes and sessions at NCSLI, MSC, ASQ, A2LA, etc., authored several 

published papers, written a book titled “Force Calibration for Technicians and Quality Managers: Top 

Conditions, Methods, and Systems that Impact Force Calibration Results,” and was the primary Author 

on the “G126 - Guidance on Uncertainty Budgets for Force Measuring Devices” for A2LA. Henry is a 

contributing author to NCSLI RP-3 and LM-1. He is also a co-host of the Metrology Today Podcast. 

Henry has written the Chapter on Force in the Metrology Handbook 3rd Edition and written and 

reviewed the Decision Rules and Measurement Uncertainty Chapter with Dilip Shah. He has been part of 

the ASTM E28 committee for decades and has made several contributions to the ASTM E74 and E2428 

standards through the committee.  

NCSL International awarded Henry the 2022 Education and Training Award. 

Henry can be reached at [e-mail].  

Henry’s LinkedIn profile: https://www.linkedin.com/in/mhforce/