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Ambala, Haryana

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Force Calibration Standards

Reliability-It has been proven that a steel ring made of the correct steel alloy and properly manufactured will perform as a near perfect elastic member. The Morehouse Proving if used and maintained properly can last indefinitely. In fact, several of our Rings manufactured in the late twenties and early thirties are still in use.

 

Accuracy- Depending on your calibration needs a Morehouse Proving Ring can provide you with an accuracy of 0.075% to 0.0125% of capacity. To simplify this, assume you want to measure 100lbf, depending on what series* Morehouse Ring you are using the uncertainty can range from 0.075lbf to 0.0125lbf.

 

Repeatability-Proving Rings unlike other force measuring instruments are not sensitive to rotation/positioning problems.

 

Ease of Use- People who have used Morehouse Proving Rings often swear by them because of there ease of use, excellent accuracy and reliability.

Morehouse Precision Calibration Grade Load Cells
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Morehouse High Precision Universal Load Cells from 500 LBF to 200,000 LBF. Guaranteed ASTM-E74 Class A lower limit better than 4 %of range in compression and tension when combined with the morehouse load cell meter model 4215.

 

Note: Morehouse Precision Calibration Grade Load Cells above 100,000 LBF will have a guaranteed uncertainty better than .025% of capacity.

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Morehouse General Purpose Calibration Load Cells
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Morehouse Load Cells from 500 LBF to 200,000 LBF. First choice for structural and materials testing. Guaranteed ASTM-E74 Class A lower limit better than 8% of range in compression and tension when combined with the morehouse load cell meter model 4215 or comparable meter.

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Brinell Calibrator
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Brinell Calibrator

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Morehouse offers two models of Brinell Calibrators, both of which are calibrated in accordance with ASTM E74 and certified directly traceable to the United States National Institute of Standards & Technology. This calibrator has approximately. 060” deflection at capacity. To insure the desired degree of accuracy, the fully jeweled indicator used to measure ring deflection under load is carefully pre-calibrated prior to its installation in a Brinell Calibrator. The assembled Brinell Calibrator is calibrated using a Deadweight machine.

 

Specification:

Overall Dimensions5 1/4" x 2" x 5 7/8" high
Certified Accuracy1/10 of 1%
Weight of Calibrator4 lbs.
Calibrated Loads500 kgs.; 1,000 kgs.; 1,500 kgs.; 2,000 kgs.; 2,500 kgs. and 3,000 kgs.
Approx. Deflection (in inches)0.60"
Approx. Deflection (in div.)600 div.
Sensitivity1/10 division
Readability1/10 division

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Proving Ring
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Proving Ring

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The series 50 Proving Rings are designed for specific applications requiring high capacities with low profiles. They are particularly well -suited for the calibration of concrete testing machines and other types of testing machines with limited daylight openings. Other Morehouse proving rings are designed to give the greatest possible deflection under load to achieve maximum accuracy. This design criteria, however, requires large outside proving ring diameters. In high capacity proving rings, the size is prohibitive in many applications.

 

The series 50 proving rings are produced only in higher capacities where size is critical. because of their low-profile, they are also lighter in weight than comparable capacities in larger diameter rings resulting in easier handling. While the amount of deflection under load is reduced in the series 50 proving rings, it is still sufficient to provide low uncertainties with good readability. An adjustable vernier index supplied supplied with the proving ring may be set to zero at the no-load condition to further simplify readings during calibrations. Series 50 proving rings fall well within the specifications outlined in ASTM E74 for standards used in Class A loading ranges.

 

Specification:

Uncertainty0.075% of capacity (75 lbf per 1000 lbf)
Readability1/10 division (0.024% of full scale)
Sensitivity1/20 division (0.012% of full scale)
Capacity Load DeflectionApprox. 400 major divisions
CalibrationBy Morehouse Force Calibration Laboratory to ASTM E-74 Standard
Capacity500 to 1000,000 pounds in compression mode only

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