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Morehouse Instrument Company, Inc.

1742 Sixth Ave., York, PA 17403-2675 USA

Phone: (717) 843-0081

www.mhforce.com

Page 10

Rev. 4/2021

Portable Calibrating 

Machine Guide

(PG-5401)

Hand-held Force Gauge L-Bracket Adapters

Calibrating hand-held force gauges in regular calibrat

-

ing machines can be cumbersome and involves a risk 

of overloading the gauge. Hand-held force gauges are 

normally manufactured for measuring small forces, 

which are difficult to generate and maintain in a large 

force calibrating machine. A small, sudden increment 

in the applied force can result in overloading the 

instrument under test and reference standard. Such 

incidents can be costly and cause long down times. 

The Portable Calibrating Machine addresses this issue 

by providing a highly precise force control and elimi

-

nating sudden increments in applied force.

Morehouse offers a set of L-Bracket adapters to 

calibrate hand-held force gauges in a Portable Cali

-

brating Machine. The L-Brackets consist of a number 

of back-plates, bottom-plates, and treaded adapters 

to mount various models of hand-held force gauges. 

Each back-plate can be mounted to any bottom-plate 

to make different combinations. Each back-plate is 

designed with special hole patterns to accommodate 

various types of hand-held force gauges.

The force gauge is mounted to the back-plate 

through the hole pattern and the back-plate is di

-

rectly mounted to the bottom-plate. Bottom-plates 

have a threaded hole at the center with 0.625”-18 

UNF-2B thread which is used to install the L-Bracket 

and hand-held force gauge assembly directly to the 

reference standard load cell in a Portable Calibrating 

Machine. Bottom-plates are included with various 

mounting hole offsets from the edge. Based on the 

type of hand-held force gauge, the proper bottom 

plate must be used to ensure the line of applying 

force in the calibration set up aligns with the force 

gauge’s load line. A threaded adapter is utilized to 

attach the loading rod of the hand-held force gauge 

to the coupling nut in a Portable Calibrating Machine.

Figure 9: Calibration Setup for a Hand-held 

Digital Force Gauge Using a L-Bracket

Summary of Contents for PCM2K-2

Page 1: ... NCSLI Z540 3 Accredited Morehouse Instrument Company Inc 1742 Sixth Ave York PA 17403 2675 USA P 717 843 0081 F 717 846 4193 info mhforce com www mhforce com PG 5401 Rev 4 2021 Product Guide Portable Calibrating Machine ...

Page 2: ...m Page 2 Rev 4 2021 Portable Calibrating Machine Guide PG 5401 Table of Contents Description 3 Standard Parts 4 Standard Reference Load Cell 5 Portable Calibrating Machine Models 6 Compression Adapters 7 Tension Adapter Kit 8 Hand held Force Gauge L Bracket Adapters 10 Weight Hanging Kit for L Bracket 14 ...

Page 3: ...librates force instruments up to 2 000 lbf Exceptional force control capability to reach and maintain target test forces e g 0 01 lbf using a 1 000 lbf Morehouse Ultra Precision Shear Web load cell Safe and confident calibration procedure for small instruments which lowers risk of overloading the instru ments Built in swiveling coupling nut to accommodate a variety of adapters and instruments Comp...

Page 4: ...ide Post Reference Standard Load Cell Standard Load Cell Mounting Adapter Compression Bearing Pad Ball Seat Adapter Mechanical Jack Coupling Nut Figure 1 illustrates the main components of a Portable Calibrating Machine All Portable Calibrating Machines are supplied with 1 Main loading frame and mechanical jack 2 Standard load cell mounting adapter 3 Compression bearing pad 4 Ball seat adapter 5 S...

Page 5: ...s loaded in the same manner that it was calibrated Morehouse recommends that a Morehouse Ul tra Precision Shear Web load cell is used as the reference standard in a Portable Calibrating Machine The standard mounting adapter is designed to mount a Morehouse Shear Web load cell as the reference standard into the Portable Calibrating Machine However other types of cells can be installed in the machin...

Page 6: ...rs cal ibration requirements Figure 5 and Table 1 contain specifications for the standard models Contact Morehouse if you need additional features or different sizes for the Portable Calibrating Machine Figure 5 Dimensions Guide for Various PCM2K Machine Models Model Swiveling Coupling Nut Thread Reference Load Cell Mounting Threaded Adapter Length See Figure 2 PCM2K 2 1 125 12 UNF 2B 0 625 18 UNF...

Page 7: ...n top of the reference standard load cell The alignment hole at the center of the compression bearing pad helps align the instrument under test To use this feature a set of Morehouse alignment plug adapters must be mounted to the bottom part of the instrument The alignment plug adapter fits into the alignment hole to ensure that the reference standard load cell and unit under test experience the s...

Page 8: ...t includes threaded adapters which are used to mount the unit under test between the reference stan dard and the stage beam of Portable Calibrating Machine Two adapters are typically needed for a tension setup One adapter is used to mount the unit under test on top of the reference standard Another adapter ties the top of the unit under test to the coupling nut of the stage beam The swiveling acti...

Page 9: ... UNC 2B 7000 1 0 625 18 UNF 2B to install on Morehouse Shear Web Standard 0 500 13 UNC 2B 7000 1 1 125 12 UNC 2A to install into the swiveling coupling nut 0 500 20 UNF 2B 8000 1 0 625 18 UNF 2B to install on Morehouse Shear Web Standard 0 500 20 UNF 2B 8000 1 1 125 12 UNC 2A to install into the swiveling coupling nut 0 625 18 UNF 2B 12000 1 0 625 18 UNF 2B to install on Morehouse Shear Web Standa...

Page 10: ...ts consist of a number of back plates bottom plates and treaded adapters to mount various models of hand held force gauges Each back plate can be mounted to any bottom plate to make different combinations Each back plate is designed with special hole patterns to accommodate various types of hand held force gauges The force gauge is mounted to the back plate through the hole pattern and the back pl...

Page 11: ...ains a list of the hand held force gauge models that can be calibrated using the L Bracket adapters set in a Portable Calibrating Machine It also provides information to assist with selecting the appropriate parts of the adapter kit for calibrating each force gauge model If you need to calibrate hand held force gauges that are not shown in Table 3 contact Morehouse to add the necessary pieces to y...

Page 12: ... 6900 17 4MM 10 32 OR 5 16 18 Ametek DFX SERIES C 0 6900 17 4MM 10 32 OR 5 16 18 Ametek AMETEK III 100 LBF A 0 7500 19 1MM 10 32 Ametek AMETEK III 100 LBF D 1 1875 30 2MM 5 16 18 Ametek SERIES L A 0 7812 19 8MM 10 32 Ametek ACCUFORCE CADET SERIES ML A 0 7812 19 8MM 10 32 OR 5 16 18 Ametek ACCUFORCE III 250 GRAMS 100 LBS A 0 7812 19 8MM 10 32 Ametek ACCUFORCE III 250 LBS 500 LBS D 1 1875 30 2MM 5 1...

Page 13: ...MM 10 32 Imada DPS A 0 4700 12 0MM 10 32 OR M6 Imada DS2 A 0 4700 12 0MM 10 32 OR M6 Imada DST A 0 4700 12 0MM 10 32 OR M6 Imada ZP A 0 4700 12 0MM 10 32 OR M6 Imada PS C 0 6900 17 4MM 10 32 OR M6 Imada FB C 0 6900 17 4MM 10 32 OR M6 Imada MF C 0 6900 17 4MM 10 32 OR M6 Imada Z2H 1100 A 0 8500 21 6MM M10 Imada ESH A 0 9800 25 0MM M10 Imada ZTS ZTA LOW CAP 220 LBF A 0 4700 12 0MM 10 32 OR M6 Imada ...

Page 14: ...mounted on the Portable Calibrating Machine To use the full working space of the machine the control spring housing of the calibrating machine should be removed and the L Bracket mounted to the stage beam using the hard ware included with the kit The weight hanging apparatus is made of light weight material to minimize the tare weight on the unit under test Figure 10 illustrates the assembly of th...

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