This specification describes a force calibration press (calibrator), for the application of compression loads up to 60,000 lbs. The calibrator is designed to calibrate and perform corner tests on aircraft wheel platform scales with dimensions up to 38.5 inches by 38 inches by 4.625 inches.
The Morehouse screw pump (P/N: 66-806) is setup 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 the 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.
Following is a complete description of a Deadweight Tensiometer Calibrator, hereafter referred to as the DTC or Calibrator, manufactured by Morehouse Instrument Co., Inc., with a range of 10 to 2,000 lbf for calibrating dynamometers, small load cells, and aircraft cable tensiometers.
Gauge Buster 2 has been designed and constructed with great care in every phase of assembly. In order to insure reliability, both the mechanical and electrical components have been built with the best available materials. Nevertheless, it has been proven that a thorough understanding of the machine, together with proper attention, will pay big dividends. The sections of this manual provide description and instruction on the operation and maintenance of the mechanical, electrical and software components.
Gauge Buster Plus has been designed and constructed with great care in every phase of assembly. In order to insure reliability, both the mechanical and electrical components have been built with the best available materials. Nevertheless, it has been proven that a thorough understanding of the machine, together with proper attention, will pay big dividends. The sections of this manual provide description and instruction on the operation and maintenance of the mechanical, electrical and software components.
The Morehouse Hydraulic Jack is specially designed and constructed to be suitable to perform precise calibration work. The Jack has a ram travel of one inch, maximum. Hydraulic pressure at capacity load is approximately 4500 psi.
This specification describes the Morehouse Hydraulic Power Control. This control is specifically designed to have a low rate of flow to control the hydraulic cylinders of Morehouse Universal Calibrating Machines. However, it additionally would have application wherever the loading of hydraulic cylinders must be precisely controlled, such as in non-destructive testing of structures.
The Load Cell Amplifier Controller is a highly reliable device which can link analog transducers to various analog equipment. The LAC produces both voltage and current loop outputs and allows a wide range of filter, offset and gain settings to suit any industrial application.
The Model 4325A is a versatile precision instrument intended for the digital readout of strain gauge sensors such as load cells.
Plug and play sensors are revolutionizing measurement and automation. With Transducer, Electronic Data Sheets (TEDS), your data acquisition system can detect and automatically configure sensors.
Manual for Morehouse 4215. An affordable, 6-wire sensing, highly accurate load cell bench top indicator with the display.
Morehouse Digital Handheld Force Gauge is a portable, battery operated force measurement instrument which can be used for general force measurement applications which require moderate accuracy. This versatile instrument comes with a variety of adapters to adapt with different loading configurations.
Morehouse Portable Calibrating Machine was designed for calibrating sensitive force sensors in relatively low capacities; under 2000 LBF. The calibrating machine offers exceptional force control and is capable of calibrating a large variety of force instruments such as load cells, ring force gauges, small dynamometers, button cells, handheld force gauges, etc. Morehouse offers multiple adapter sets for this versatile force calibration system.
Reed Vibrators are standard on Series1000 Morehouse Proving Rings and are an optional accessory on all other series Proving Rings. The Electric Reed Vibrator is a self-powered unit which provides a regular, steady vibration of the vibrating reed. It helps the operator achieve greater accuracy through more consistent dampening of the Proving Ring's vibrating reed.
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.
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.
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.
This calibrator is designed for calibrating portable wheel scales according to the National Institute of Standards & Technology Handbook 44 over a range of 1,000 lbs. to 40,000 lbs. These scales are used for weighing the load on individual truck wheels for truck weight law enforcement.
A quick overview of the Morehouse 5-in-1 Force Verification system, for using as a check point to verify force measurement systems.
General specifications and features of Morehouse Deadweight Calibrating machines which are built at different capacities, and provide the highest accuracy for force calibrations.
A brief representation of features and functions of Morehouse Digital Force Gauges as a user-friendly force measurement instruments.
Features of the Morehouse Direct Reading Systems for force measurement in the field. These user-friendly systems are designed to provide portability and quick reading in the field conditions.
Features of the Morehouse Direct Reading Systems for force measurement in a laboratory environment. These user-friendly systems are supported with the included Morehouse calibration software for higher versatility.
A summarized overview of the capabilities and services provided by Morehouse Force Calibration laboratory.
General guide on the Morehouse Force Calibration laboratory, including: capabilities, uncertainties, accreditation, and procedures.
To avoid situations that may cause personal injury or equipment damage when using Load Cells, Proving Rings and other types of instruments to which forces are applied, read and understand the following instructions.
Features and specifications of the Morehouse hydraulic hand pump and jacks, which are used in conjunction with Universal Calibrating Machines for fine control of the calibration device.
A guide on features of the Morehouse Hydraulic Power Control, which can serve as an hydraulic power source for Universal Calibrating Machines, or wherever the loading of hydraulic cylinders must be precisely controlled.
General information brochure about Morehouse Instrument Company with information on various topics such as force and torque calibration laboratories, measurement instruments, calibrating machines, company mission, and Morehouse difference.
General information on the training courses offered by Morehouse Instrument Company on various topics such as: force calibration, advanced uncertainty calculations, and statistical process control.
Morehouse Portable Calibrating Machine is a versatile calibration machine designed to perform force calibrations on a variety on instrument at capacities under 2000 LBF. This machine is offered in various models based on the user requirements. Several types of adapters are also available to be used with Portable Calibrating Machine to calibrate instruments such as handheld force gauges, load cells in compression and tension, small dynamometers and button load cells.
A guide on specifications of Morehouse Quick Change Tension Members and Clevises which are specifically designed for tensile force calibration. This guide includes information on available capacities, dimensions, and other ordering details.
A summarized guide on the specifications and features of Morehouse Ring Dynamometers.
A useful guide to help the customer select the right shear web load cell from the three accuracy grades that Morehouse offers: Ultra-Precision, Precision, and Calibration load cells.
A detailed bulletin on the tensions members, clevises, loading pads and all the other calibration adapters provided by Morehouse to be used with various calibrating and testing machines.
Product guide for the Morehouse Universal Calibrating Machine (UCM), which is a hydraulic system designed to use a compression force standard, proving ring or load cell to calibrate units under test in compression and tension.
A guide on specification and features of the Morehouse Wheel Load Weigher Calibrator, which was is designed to speed the calibration and certification of wheel load weighers, yet maintain the high degree of accuracy required for proper certification.
Newest Version - Morehouse software download for 4215, HADI, and DSC-USB indicators for use with a single indicator
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.
Newest Version - Morehouse software download for dual 4215, HADI, and DSC-USB indicators for use with two indicators at the same time
V1.3.3: Force calibration software for use with Morehouse 4215, HADI, or DSC-USB Indicators. 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.
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.
V1.2: This 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.
This is a one sheet verification proving the software converts the mV/V values properly. The end user must verify they have entered the coefficients correctly
15 Easy Steps to Replace Seals on a Morehouse Jack
How to replace a seal pump on a Morehouse Hydraulic jack.
Force Measurement or Calibration Quick Change Setup Reduction Adapters by Morehouse
Morehouse quick change adapters eliminate the need for multiple tension members and improve setup time by eliminating the need to change out the entire tension assembly. Quick change adapters use the same tension member assembly and different size male or female adapters are then used for tension set ups and the other end can have a ball seat or spherical for compression setups if needed. For use with Morehouse dead weight machines, universal calibrating machines and other applications.
Morehouse Universal Calibrating Machine Setting Up a Proving Ring for Force Calibration
Set up for force calibration using a Morehouse Proving Ring as a standard in a Morehouse Universal Calibrating Machine.
Releasing Locked Motor Drive on 30K Calibrating Machine
How to release a locked motor on a Morehouse UCM.
Releasing Locked Motor Drive on 100K Cal Machine
This video shows how to free a locked 100K calibrating machine. It shows how to recover if the operator has run the lower yoke or jammed an instrument in the machine.
Deadweight Stabilization by Morehouse
When a deadweight is applied to a load cell, the tendency is for the weights to resonate. This system simply applies force to help stabilize the resonane. Weights are applied, the system applies force and then is removed before readings are taken.
Universal Calibrating Machine for Load Cells, Crane Scales and Other Force Devices
For calibration of force sensors, load cells, crane scales and other force measuring instruments. This machine is wider and longer to accommodate force measuring instruments such as crane scales and dynamometers. This machine, when used with a load cell calibrated by deadweight primary standards can have CMC's better than 0.02 % of applied.
Morehouse Deadweight Primary Standards for Load Cell Calibration
Morehouse Deadweight is accurate to 0.0016 % of applied force. This machine is a primary standard according to ASTM E74 and can be used to calibrate load cells, force sensors, and various other force instruments.
Morehouse Force Calibration Lab Overview
Accredited calibration services for load cells, force sensors, force gauges and other calibration equipment. This video is a general overview of Morehouse's calibration lab and equipment. Calibration in accordance with ASTM E74, ISO 376 and other specified procedures are available.
Releasing Tension in 30k UCM Top of Machine Using Punch
If the user accidentally runs the yoke up to far and locks the machine this method can be used to free a Jam.
Force Sensor calibration Using an USB Powered Meter
DSC USB signal conditioner calibration with a load cell using dead weight primary standards accurate to 0.0016 % of applied force and then setup in a Morehouse UCM as the reference standard. This is one of many accredited load cell calibrations Morehouse offers.
Morehouse - Accurate Torque Calibration Laboratory
Video tour of Morehouse Accredited Torque Calibration Laboratory. Morehouse Torque calibration laboratory features torque calibrations up to 2kN-m (1475 lbf-ft) accurate to 0.002% of applied torque. The standard in this video was the primary torque standard for NPL in the United Kingdom and is one of the most accurate torque standards in the world. It is now located in the United States at Morehouse Instrument Company.
Morehouse PSD Load Cell Indicator
Morehouse battery powered portable PSD indicator for load and torque cells. The Morehouse PSD is a Load cell indicator with two channels that operates on two AA batteries for ultimate portability.
Morehouse Digital Proving Ring
Morehouse Digital Proving Ring setup in a Universal Calibrating Machine and calibration demonstration using the digital proving ring as the reference standard. Morehouse force calibration standards are one of the most accurate reference standards available for force measurement.
Morehouse 4215 or DSC USB 2 Indicator Load Cell Calibration software
Morehouse software that enables two readouts to be used. One readout is used with the reference and the other to capture readings from the UUT (Unit Under Test). This software is automated in that the user defines specific parameters and then uses force equipment to apply forces to both the Ref and UUT. The software then takes automated readings from the UUT.
Morehouse UCM Setting Up a Load Cell Standard
Set up for force calibration using a Morehouse load cell as a standard in a Morehouse Universal Calibrating Machine. This setup applies to all calibrating machines manufactured by Morehouse Instrument Company and can apply to force sensors, force gauges and other force equipment.
Compression Load Cell Force Calibration Using a Morehouse Universal Calibrating Machine
Setup of a load cell for compression calibration using a Morehouse Universal Calibrating Machine. This video contains the proper adaptors and instructions on how to use them and the Morehouse Universal Calibrating Machine to perform compression calibrations.
Demonstration of Morehouse Secondary Torque Standard
Eliminate the lifting of weights by putting a Morehouse load cell system on the end of a torque arm.
Calibrating Crane Scales in a Morehouse 30K UCM
Setup and calibration of crane scales, dynamometers or other force sensors in a Morehouse calibrating machine.
Portable Calibrating Machine
With Morehouse Portable Calibrating Machine, you can benefit from a laboratory-grade force calibration system in the field. Quick-change tension adapters, quick-adjust calibration height, and quick setup will save your valuable time in the field; while the calibrator provides precision force measurements.
Setting up a Load Cell in Tension Using Morehouse Quick Change Adapters
This video shows how to set up a Load Cell in Tension Using Morehouse Quick Change Adapters. Not using the proper tension adapters for load cell calibration can result in large errors and very cumbersome set-ups. Morehouse quick change adapters help simplify set-ups and improve changeover time between calibrations.
Entering Coefficients using Morehouse Indicators and Software
This video shows how to enter coefficients from the Morehouse load cell calibration report to use Morehouse software which converts mV/V values to direct engineering units such as LBF, KGF, N, kN, and other units.
Morehouse HADI Load Cell Indicator System for ASTM E74 and ISO 376 force calibrations
Load cell indicator system for reference load cells. The Morehouse HADI load cell system uses coefficients from the ISO 376 or ASTM E74 report to convert the load cells mV/V output into direct reading engineering units.
At Morehouse, we strive to replicate the loading conditions a customer may be using. Some other labs, may not follow this process and the additional measurement uncertainty from not replicating use, may create significant error source. Below are the top 5 common force measurement errors that may invalidate the calibration results.
This presentation will cover the following: Load cell basics, 7 step process for troubleshooting a load cell, Using a load cell tester to diagnose problems.
Q: I’m receiving an error when trying to save a new or existing Load Cell coefficient profile. The error states:
A: Your Windows User Account doesn’t have permission to save in the target directory
where Load Cell coefficient profiles need to be saved. In order to rectify this, navigate to the target directory and right click the folder, select Properties -> Security -> Edit and click the user in the list box that corresponds to your User Account. Click the checkbox that says “Full Control” for your User Account and hit apply. More info here:
Q: I’m receiving an error when trying to save a new or existing Load Cell coefficient profile. The error states:
A: There are too many lines and/or coefficients entered that are capable for this
program. When entering coefficients, make sure that you navigate between fields using the arrow keys or via clicking each “B” coefficient field and entering the number. Pressing the ENTER key adds a new line, so while on screen nothing appears to be wrong, there are additional fields being read into the program that are invalid. ANY UNUSED COEFFICIENT FIELD MUST HAVE A 0 NEXT TO IT!
Q: I’ve entered the Load Cell coefficient file, selected my indicator and force mode, and switched to the Live Reading tab. When pressing the “Enable Read” button, I see the error:
A: In this case, there are too FEW coefficients or lines entered in the Load Cell profile.
Please check that you have entered them appropriately and that ANY UNUSED COEFFICIENT FIELD MUST HAVE A 0 NEXT TO IT!
Q: I have my Morehouse 4215/DSC USB/LDU indicator connected to my computer via USB and powered on. I load the Morehouse Calibration Software and I see the following error:
A: Ensure that you install (or have installed) the appropriate driver that was included in
your software download, or provided to you via disc, in the “Drivers” folder of the installation media. The driver for each device is located in the folder with the same name. After the driver is installed, verify that the indicator you have is being recognized by Windows. Navigate to the system Device Manager via the Control Panel, and click the
In the event this still doesn’t fix the issue, ensure that the device is not being currently occupied by another program or resource lock. An easy way to guarantee this is by rebooting the computer. In the rare event your device still won’t communicate with the Morehouse Calibration software, please isolate your indicator and remove all other
“Ports” type devices from your computer and try again.
IF YOUR INDICATOR IS A MOREHOUSE 4215, CONFIRM THAT THE “ADD LINE FEEDS” OPTION IS SELECTED IN THE SYSTEM OPTIONS VIA THE FRONT PANEL PUSH BUTTON CONTROLS
Q: I have a DSC USB, and my extracted mV/V readings are scrolling across the screen scrambled and seemingly arbitrary, and no force measurement is being displayed in the green box. The following image depicts the pattern you may be seeing:
A: The DSC USB unit decimal precision is set incorrectly. In order to set it to a proper
value for the software to read from, hit “Hold Read” and then the combination of the keys CONTROL + SHIFT + R (CTRL + SHIFT + R). A screen should appear and the program will run through a sequence of procedures to reset values on the DSC.
The oil we recommend for our jacks, hand pumps, and hydraulic power control is Mobile DTE 24. It is a light hydraulic oil
We recommend using a load cell tester to verify the zero balance. If a load cell tester is not available, one can quickly test bridge resistance against the manufacturer's specification. See load cell troubleshooting guide for more information.
Most meters are designed only to allow a percentage of output to be tared or zeroed. Please follow load cell troubleshooting guide and verify the cell is not overloaded.
The output observed during calibration was done in a deadweight or transfer machine and with specific adapters. If the adapters are not the same as used at the time of calibration, the errors can be as high as 0.5 %.
Is the power hooked up to the meter and if the meter is battery powered does it have fresh batteries. See load cell troubleshooting guide for more information.
This could be several things. It could be caused by an overloaded load cell, it could be a meter issue, or it could be from removing integral adapters that should not be removed. See load cell troubleshooting guide for more information.