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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
Specializing in Service, Calibration, Retrofit, and Sales of Physical Testing Equipment

Forney DR-500
Digital


Instruction Manual

GETTING STARTED
Once your Forney DR-500 is installed on your machine, power up the unit and allow for a 15 warm up prior to use.
The display will follow a boot procedure and indicate the version of software installed.
Three different function keys have been programmed to perform the following functions. These keys are clearly labeled.
DSP Key: This key is the PEAK display key. Pressing this key will display the maximum value obtained at the end of the test.
F1 Key: This key is the PEAK RESET key. Pressing this key will reset the Peak display back to a non-peak level. This does not turn off the PEAK display, it simply resets the value to an at rest value.
RST Key This key is the ZERO key. Pressing this key will allow the operator to tare the display in preparation for loading a new sample

PERFORMING A TEST

NOTE: Assuming this device is connected to a force testing machine, we will proceed with the standard procedure for performing such a test. If this device is connected to another application, the procedure may differ slightly, but will be very similar.

1.

Power the digital as described in the earlier section and allow for proper warm-up.

2.

Insert the sample into the testing machine and ensure proper centering and alignment requirements have been met.

3.

Power the pump and lower the piston in the RAPID TRAVEL position until daylight is limited to ". Place the control valve in the METERED position. Wait 3 seconds and press the F1 and RST buttons on the display.

4.

Move the lever to the RAPID ADVANCE position and preload the sample to no more than the expected yield for the sample under test. IMEADIATELY, move the lever to the metered position and press the DSP key until you see TOT illuminated on the left side of the display. The value you see (ignoring the decimal point) will be the rate of loading in LBS PER MINUTE. Adjust the flow control valve to achieve a loading rate which is appropriate to the standard for the sample tested (ie: 60,000 lbs for 6 X 12 cylinder). Once you have achieved this number, or something close to this, press the DSP key until you see MAX displayed. Continue loading the sample until you reach failure. DO NOT TRY TO ADJUST STAR SHAPED VALVE AS YOU REACH FAILURE.

5.

As you reach failure the loading rate will decrease until the sample has reach failure. Once failure is achieved, position the control valves to RETRACT.

6.

Shut off the pump.

7.

The Maximum value achieved during the test will be displayed. Record this value and use the charts I have included to calculate the PSI or the break.

8.

Remove the sample and clean up any debris.

9.

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

 

 
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