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CALIBRATION
SERVICES, INC.
300 Buttertown Road
Emlenton, PA 16373
724-867-6664
ACCREDITED
724-867-1346 Fax
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Web: www.calibrationinc.com
Email: info@calibrationinc.com
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Specializing
in Service, Calibration, Retrofit, and Sales
of Physical Testing Equipment
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Forney DR-500
Digital
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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.
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| 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. |
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1.
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Power
the digital as described in the earlier section
and allow for proper warm-up. |
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2.
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Insert
the sample into the testing machine and ensure
proper centering and alignment requirements have
been met. |
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3.
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Power
the pump and lower the piston in the RAPID
TRAVEL position until daylight is limited
to ¼". Place the control valve in the METERED
position. Wait 3 seconds and press the F1
and RST buttons on the display. |
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4.
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Move
the lever to the RAPID ADVANCE position
and preload the sample to no more than ½ 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. |
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5.
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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. |
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7.
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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. |
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8.
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Remove
the sample and clean up any debris. |
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9.
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Proceed
to Step 2 to start your next test. |
CALIBRATION
SERVICES, INC.
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300 Buttertown Road
Emlenton, PA 16373
(724) 867-6664 or (800) 793-1870
FAX (724) 867-1346
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