CALIBRATION SERVICES, INC

Accredited

CALIBRATION SERVICES, INC. 300 Buttertown Road Emlenton, PA 16373 724-867-6664 ACCREDITED 724-867-1346 Fax	Web: www.calibrationinc.com Email: info@calibrationinc.com ISO 17025-2005 Laboratory Accreditation Bureau CERT # L 1174
Specializing in Service, Calibration, Retrofit, and Sales of Physical Testing Equipment

QUICK PROCEDURE FOR TESTING CONCRETE CYLINDERS USING A FORNEY ™
TESTING MACHINE
WITH A SPX ™ PUMP AND A TEST PILOT DIGITAL

Written by: William W. Stump III
President Calibration Services, Inc.
December 20, 2007

1.	Turn on digital. Allow to warm up for 15 Minutes prior to use.

2.	Insert the bottom of the specimen into the bottom pad base and center. Place the top pad base on the specimen. Insert the entire assembly into the testing machine and center it.

3.	If you are testing 4 X 8 samples, the digital is currently set up for this size. You can then proceed to step 5. If you are testing another size sample, proceed to step 4.

Press the "

" key on the digital display. "RUN +" will appear. Press the

key and the digital will show the first of several choices. "Cube" should be displayed first, by pressing the

key again you will see "Cylinder". Press the

key and you will see the first of two choices. Press the

key to see "Edit Specimen". Press the

to enter this menu and you will see the diameter setting. Press the

key again to see the current value. Pres the

key again to blank out the entry and use the number key pad to enter your new diameter. Press the

key to accept this value then press

and the Specimen Height will be displayed. Press the

key to see the diameter reading. Press the

key to blank out the current reading and use the number pad to enter the new diameter. Press the

key to accept this value and press the

key several times until you reach the normal operating mode. You can now proceed to zero the machine and perform the test. to see the Press the

key the press the

key. The digital will say "Initializing" then show the regular display.

5.	Start the pump and move the piston in "RAPID ADVANCE" until you have Ľ" of daylight. IMMEDIATELY put the valve into "METERED ADVANCE".

6.	Check the centering of the sample. Press the "ZERO" key.

7.	Position the valve into "RAPID ADVANCE" and preload the sample to about 6000 lbs. Put the valve back into "METERED ADVANCE".

8.	Wait several seconds until the pump gets up to speed. The test should start climbing at the appropriate rate. If you want to know the rate, press the "STRESS" button TWICE and the rate light will illuminate showing the rate of loading in PSI per Second.

9.	If it is too slow, turn the star shaped know Counter Clockwise "CCW", if it is too fast turn it Clockwise "CW". Once you have the rate set, push the "Force" button again to follow the load on the digital. Once you have set the speed, you should not have to do this again for subsequent samples.

10.

When the sample fails, put the valve into "RETRACT" and shut off the pump. Press the "PEAK" button to see the peak load in lbf. Press the "STRESS" button and then press the "PEAK" button again to see the peak stress. After you have written down the results, press the "FORCE" button to return to a force reading.

11.

Proceed to step 2 to start your next test.

CALIBRATION SERVICES, INC.

300 Buttertown Road
Emlenton, PA 16373
(724) 867-6664 or (800) 793-1870
FAX (724) 867-1346