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Summary of Contents for Morehouse UCM
- Page 1 PM-5201 Rev. 03/2024 ISO/IEC 17025 / ANSI/NCSLI Z540.3 Accredited Operation and Instruction Manual Universal Calibrating Machine (UCM) info@mhforce.com Morehouse Instrument Company, Inc. P: (717) 843-0081 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com F: (717) 846-4193...
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Page 2: Table Of Contents
5.5 Rust Prevention ............... . . 33 Morehouse Instrument Company, Inc. - Page 3 6.5 Drawings & Parts Lists ..............36 7. Accessories & Adapters for use with Morehouse Universal Calibrating Machines..... . 39 Morehouse Instrument Company, Inc.
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Page 4: Introduction
1.2 Functional Operation The Morehouse Universal Calibrating Machine is a device for simultaneously applying a force to a reference standard and the device to be calibrated (unit under test). The force is produced by a hydraulic jack activated by a manually operated pump, specially designed as a force machine with low errors. -
Page 5: Design
While a reference standard, such as a load cell, is essential to calibration, it is not supplied as part of the Universal Calibrating Machine. The reference standard is always loaded in compression whether performing a tension or compression calibration. Figure 2: Morehouse Ultra-Precision Load Cell Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 5 1742 Sixth Ave., York, PA 17403-2675 USA... -
Page 6: Overview
Hand Pump Assembly Unit Under Test in Tension Momentary Positioning Switch Lower Machine Platen Adjustable Foot Figure 3: Morehouse Universal Calibrating Machine 100,000 lbf (500 kN) Capacity (with motorized adjustable yoke platen) Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 6 1742 Sixth Ave., York, PA 17403-2675 USA... -
Page 7: Description
Universal Calibrating Machine (UCM) Manual (PM-5201) 2. Description 2.1 General The Morehouse Universal Calibrating Machine is comprised of three principal assemblies: 2.3 - Load Bearing Frames 2.4 - Hydraulic Jack 2.5 - Loading Power Supply 2.2 Construction The outline drawing in Figure 4 illustrates the overall construction of the calibrating machine. Dimensions are indicated for the various standard capacity machines in Tables 1 and 2. - Page 8 4 013 1 283 Standard Table 2: UCM kN Dimensions (mm) Referenced dimensions are configured with the use of Morehouse load cells as the standards. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 8 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com...
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Page 9: Load Bearing Frames
1” (25.4 mm) maximum. Hydraulic pressure at capacity load is approximately 4,500 psi (31 026 kPa). 2.5 Hydraulic Pumps A hydraulic pump is required to supply, maintain, and adjust the hydraulic fluid pressure in a UCM hydraulic jack in order to provide various calibration loads. Morehouse provides three optional hydraulic pumps for all... - Page 10 A Morehouse hand pump is a basic and low-cost system for providing hydraulic pressure for a UCM (Figure 5). When this system is purchased with a UCM, the hydraulic jack is activated by a hand pump assembly that advances the ram quickly and then more slowly until the desired load is achieved. The high/low operation is switched manually and can be switched at any desired load.
- Page 11 It is recommended for use with calibrating machines of 60,000 lbf (250 kN) and higher capacities. Morehouse adjusts the hydraulic fluid flow for UHP units based on the capacity and size of the machine. The operator uses the momentary switch in front of the unit to activate the electric motor and run the hydraulic pump.
- Page 12 The Morehouse Auxiliary Hydraulic Screw Pump is a manual hydraulic pump that is specifically designed to ad- just and maintain the calibration force in a UCM at a fine level. This gives the operator better control over the calibration force and enables accurate calibration at any desired force.
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Page 13: Preparation For Use
After the machine has been installed, remove the bolt that holds the lower yoke to the lower machine platen. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 13 1742 Sixth Ave., York, PA 17403-2675 USA... -
Page 14: Installation Of A Reference Standard
(PM-5201) 3.3 Installation of a Reference Standard A reference standard, normally a load cell, must be installed in a UCM before using the machine. The reference standard measures the applied force and calibrates the unit under test. A Morehouse reference standard kit can be utilized to install the reference standard into a UCM. This kit consists of Morehouse reference standards, which are typically load cells and the adapters necessary to en- sure proper force application. - Page 15 100,000 lbf (500 kN), then the kit shown adapter in Figure 10 can be used to install the standard in a UCM. The kit contains the following: Load cell 1- Top Block Compression Adapter 2- Reference Load Cell...
- Page 16 Hand Pump Assembly Unit Under Test in Tension Momentary Positioning Switch Lower Machine Platen Adjustable Foot Figure 11: Morehouse Universal Calibrating Machine 100,000 lbf (500 kN) Capacity (with motorized adjustable yoke platen) Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 16 1742 Sixth Ave., York, PA 17403-2675 USA...
- Page 17 (UCM) Manual (PM-5201) Watch the video How to setup a load cell reference standard in a UCM to learn more. If sufficient space cannot be obtained, then adjust the upper yoke platen as follows: Note: When adjusting the upper yoke platen, be careful not to run it against the shoulders or the stops on the tension tie bars, as this may damage the calibrating machine.
- Page 18 When the reference standard does not have a ball seat, proper axial alignment is difficult to achieve without the proper accessories and adapters. To maintain proper axial alignment, it is recommended that a reference standard with a ball and ball cup be used whenever possible. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 18 1742 Sixth Ave., York, PA 17403-2675 USA...
- Page 19 Using the motorized adjusting switch, push the switch up/down to raise/lower the lower yoke platen. Need picture or diagram Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 19 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com...
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Page 20: Prepare The Hand Pump For Use
If this occurs, then the system will need to be bled of the entrapped air. The procedure for bleeding the entrapped air is outlined in Section 6.2. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 20 1742 Sixth Ave., York, PA 17403-2675 USA... -
Page 21: Operation
The calibrating machine is designed for the calibration of both tension-type and compression-type instru- ments. Figure 15 illustrates the suggested calibration setups for tension and compression. Figure 15: Calibrating Instruments in a) Compression; b) Tension Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 21 1742 Sixth Ave., York, PA 17403-2675 USA... -
Page 22: Compression Setup
4.2 Compression Setup To set up the Universal Calibrating Machine for compression calibration: 1. Position the reference standard, such as a Morehouse Load Cell or Morehouse Proving Ring. See pages 14- 19 for more details. 2. Position the unit under test (see below). - Page 23 The load cell alignment plug threads into the Lower yoke platen load cell and sits in the centering hole of the lower yoke compression block The UCM lower yoke compression block connects to the lower yoke platen Figure 18: Setup for Compression Calibration Load Ball Adapter (CCE-1)
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Page 24: Tension Setup
Figure 21 illustrates how various adapters can be used for different instru- ments with the same set of tension members. Need to discuss extending the ram past 1 inch somewhere as that damages the ram. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 24 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com... - Page 25 Figure 20: Tension Members with Adapters for UCMs 100,000 lbf (500 kN) Capacity and Less For more details see the Universal Calibrating Machine Adapters and Accessories PG-5202. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 25 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com...
- Page 26 (PM-5201) Quick Change Tension Member A single Tension Member Assembly is installed into the UCM and multiple tension adapters, both male and fe- male, are interchanged to attach the desired-size instru- ment. A single pair of Tension Members can re-...
- Page 27 (PM-5201) Clevis Assembly for Tension Setup Standard Morehouse Clevis assemblies are adaptable to the Quick-Change Tension Adapters system. Figure 22: Morehouse Adaptable Clevit Kit A clevis can be attached to a Tension Member in two possible ways based on the thread size on the clevises’...
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Page 28: Hand Pump Operation
(Hydraulic Hand Pump & Jack Instruction Manual). Caution: Before pushing in the rod, release any downward pressure applied to the hand lever. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 28 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com... -
Page 29: Universal Hydraulic Pump
4.6 Calibration Once the reference standard and the unit under test have been installed into the UCM and the operator is pro- ficient in the use of the hand pump, calibration of the unit under test can be performed. -
Page 30: Tare Load
In cases where the “pre-load” is over 5 % of the capacity of the load cell, ignoring the tare load effect may in- troduce a significant error in the calibration. The error introduced can be determined by comparing two calcu- lations. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 30 1742 Sixth Ave., York, PA 17403-2675 USA... - Page 31 If the tare weight is higher than 5 %, we recommend calibrating the device to 105 to 110 % of the rated capacity to account for any of these errors. Correction formulas must be used for proving rings to obtain the correct deflection values. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 31 1742 Sixth Ave., York, PA 17403-2675 USA...
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Page 32: Service, Inspection, Maintenance, & Lubrication
SAE ORB-6 (15). A firm joint will prevent leakage. If leakage develops, do not tighten the fitting excessively. Replace the O-ring seal. Need to check the rest of the document. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 32 1742 Sixth Ave., York, PA 17403-2675 USA... -
Page 33: Lubrication
The grease used should conform to NGLI 2 specifications. UCM’s above 300,000 lbf (1 500 kN) capacity utilizes a gearbox that requires maintenance. Please refer to the manufacturer’s guidelines for the applicable gearbox used on your machine. -
Page 34: Disassembly, Repair, And Reassembly
6. Disassembly, Repair, and Reassembly 6.1 Disassembly and Reassembly The drawings provided clearly show procedures for disassembly and reassembly of the Morehouse Universal Calibrating Machine. The parts list and drawing for the hand pump are included in this manual. Parts lists and drawings for Universal Calibrating Machines and hydraulic jacks are supplied with the calibrating machine. -
Page 35: Service Instructions For Hydraulic Hand Pump
All parts of the calibrating machine, except O-rings, are designed to last indefinitely in normal use. If inadver- tent misuse or accidental damage occurs, the damaged parts may be replaced to repair the machine. Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 35 1742 Sixth Ave., York, PA 17403-2675 USA... -
Page 36: Drawings & Parts Lists
If copies of drawings and parts lists of a spe- cific capacity calibrating machine or hydraulic jack are required, contact Morehouse to request the the appro- priate drawings. When ordering repair parts, please include the serial number and capacity of the calibrating machine (as engraved on the nameplate) and state the part number, name, and quantity required. - Page 37 T-406 Drip Pan Attaching Screw T-167 Drip Pan Attaching Washer T-110 Relief Valve Stem T-109 Relief Valve Body T-194 Poppet Valve Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 37 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com Rev. 3/2024...
- Page 38 Piston Back-Up Ring (T-159) T-107 Guide Rod 01-90003 Body Attaching Screw IGT-10 Retaining Plug IGT-34 Vernier Piston 10-90000 Seal Ring Piston Morehouse Instrument Company, Inc. Phone: (717) 843-0081 Page 38 1742 Sixth Ave., York, PA 17403-2675 USA www.mhforce.com Rev. 3/2024...
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Page 39: Accessories & Adapters For Use With Morehouse Universal Calibrating Machines
7. Accessories & Adapters for use with Morehouse Universal Calibrating Machines Due to the physical differences in the many types of instruments that may be calibrated in the Morehouse Universal Calibrating Machine, many different types of accessories and adapters are available. For more infor-... - Page 40 Do not use damaged or visibly compromised components. Refer to your product manual for proper use and specifications. If you have questions about a Morehouse Instrument Company product’s capabilities or limita- tions or to access a manual, please contact your sales representative or email info@mhforce.com.
- Page 41 Fare riferimento al manuale del prodotto per l’uso corretto e le specifiche. In caso di doman- de sulle capacità o sui limiti di un prodotto Morehouse Instrument Company, o per accedere a un manuale, contattare il proprio rappresentante di vendita o inviare un’ e -mail a info@mhforce.com.
- Page 42 Consulte o manual do seu produto para uso e especificações adequados. Se você tiver dúvidas sobre os recursos ou limitações de um produto da Morehouse Instrument Company, ou para acessar um manual, entre em contato com seu representante de vendas ou envie um e-mail para info@mhforce.
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