Roberts Proof Test Certificate software (Test 35) with A2D Converter.
Serial cable
Calibration
4,500 to 45,000 lbs. 2,041Kg to 20,412 Kg
45,000 to 450,000 lbs. 20,412 Kg to 204,116 Kg
Features
Tension is supplied by a hydraulic cylinder. For easier and
faster hook up, the cylinder is in the pulling mode.
The moveable carriage allows for testing of different length
slings. The carriage is pinned into position thru holes on the
side rails.
The hydraulic cylinder is built to our specifications for this
application. It is an expensive, top-of-the-line, high pressure
cylinder, and must be compatible with the load cell.
Speed adjustment for the cylinder is a very simple item, but
by incorporating it into the power unit, we are able to make the
cylinder retract at the speed desired.
The foundation of this system is the hydraulic
power unit. Being able to control the hydraulics at small increments
with a constant, steady flow of hydraulic fluid to the cylinder
allows us to calibrate to ASTM E-4, +/- 1%, traceable to the
National Institute of Standards and Technology (NIST).
A remote control pendant is furnished at no charge. This allows
for safer, faster, and easier hook-ups.
For repeat testing, a manual loadlock is furnished at no charge.
For testing several items, the operator sets this on the first
test piece. The machine will automatically return to this pressure
load each time a new piece is placed into the machine.
Manually operated cover. The cover is counter balanced for easy
opening and closing. Approximately 25 lbs. (11.34 kgs.) force is
required to open or close. (See options for hydraulically operated
cover.)
The load measuring system electronic load
cell is the heart of the system. The electronic strain gauge
load cell is an independent measuring system not tied into the
hydraulic system. This load cell system, with two ranges, may
be calibrated from 1% to 100% of the maximum capacity of the
load cell. The load cell will calibrate to ASTM E-4, +/- 1%,
traceable to the National Institute
of Standards and Technology (NIST.
Test 35 Software uses a computer as the digital indicator. The
A2D Converter changes the analog signal to digital. The digital
signal is sent to the computer running Test 35. This allows you
to use the computer as the digital indicator, while also being
able to use the word processing function of the computer.
Roberts Proof Test Certificate software (Test 35) automatically
makes .pdf files. The .pdf files Test Cert generated by
Test 35 may be printed on any computer with Adobe. This significantly
simplifies file management and distribution of duplicate Certs.
Also Test 35 need only be operating on a single computer. When
a .pdf file of the Cert from a test is made it can be stored on
any computer, including network and Web servers. It can be printed
on any computer that has Adobe Reader software installed. ( a free
download )
The computer screen has two displays, live load and peak load.
The live load is the actual load of the item being tested. The
peak load is the maximum load to which the item has been subjected.
The separate peak/hold system automatically
resets to the desired test load. With an automatic system, you
never lose the peak of the last test.
The Load Limit Control feature in Test 35 makes it possible to
control the force being applied and the amount of time the proof
test will perform at that level of force. The machine will automatically
return to this load each time a new piece is placed into the machine.
The feature is very useful for repeat tests of similar item and
for holding a proof test for a long period of time.
Value
Our proof testing machinery is the best value
in the industry. We offer more features as standard items than our
competitors. Our test machines are stronger due to the amount of
steel content and design. They calibrate easier and stay in calibration
longer. The differences between Roberts Testing Equipment, Inc. test
beds and the competition are as follows:
Roberts Testing Equipment, Inc.
Safety: Fully enclosed
Load measuring system is an independent electronic load cell
with digital readout (see pressure transducer vs. load cell information
sheet.)
Very accurate lower limits. Will
calibrate to ASTM E-4, +/- 1% of reading traceable to NIST.
Standard guarantee: Accuracy of +/- 1%
of reading on digital indicator. The test range from 1% to
100% of the load cell value and is calibrated adn is accurate
to very low limits of the test bed. Compare our lower limits
to the competition.
Peak/hold automatic system.
Independent system is accurate on break tests.
Competition
Unsafe: Not fully enclosed. Bottom open.
Load measuring system is a pressure transducer, dependent on
the hydraulic pressure, with digital readout
Not accurate at low range. Will not calibrate to ASTM E-4.
They guarantee from 5% to 100%. Lower 5% of maximum range is
not accurate.
Hydraulic pressure transducer is not accurate on break tests
Safety
We also have a standard safety feature which
is a fully enclosed frame including sides, ends, and top. Other manufacturers
do not offer this. With their machines, if an item breaks, the small
pieces will come out from under the sides and out the end of the
test machine. This is why it is important to have the machine totally
enclosed.
The following is a list
of items included with the test machine:
Options
Hydraulically operated cover.
Small cylinder for testing 1,000 Lbs to
50,000 Lbs. (453.6 Kg to 22,680 Kg, Cylinder stroke 48 inches
( 1.22m).
Computer with Microsoft XP software (desk top or lap top) and
printer. Test 35 is included on all machines.
Additonal sections per 20ft (6.09m).
Additional cylinder stroke per foot (030m).
Hydraulic guage (6") with Lbs Force
(back up unit).
Length measuring system and meter: Length measuring system and
meter to measure stretch of sample. This includes a displacement
transducer, necessary mounting, and electronic logic to sum total
displacement. The separate meter will give a digital display of
the displacement.
Installation Requirements
Items furnished by Roberts Testing Equipment:
Design and specifications for the testing machine.
All hydraulic power units, cylinders, load measuring equipment
(i.e., digital readout, load cells, etc.), test machine frame components.
Frame will be sandblasted, primed, and painted.
Advise on installation.
All training for proper use of test equipment.
Operation manuals and maintenance manuals.
Items to be furnished by the customer:
Labor for installation.
Reinforced concrete slab, 10' feet (3.048
metres) wide, 4"(10.16
cm) thick. Commerical warehouse slab with no major cracks or faults
is sufficient for no additional cost to the customer.
All foundation work, including anchoring
points, and anchoring systems (if required).
All lifting equipment, cranes and/or lifts of sufficient size
for safe unloading and installation including operators.
All electrical connections and electrician to hook up motor and
controls.
Extra hydraulic oil equal to AW
46.
Touch up paint, if desired, after installation. Sherwin-Williams
5202-14230 or spray 140-0621.
450,000 LB. 204,117Kg 40' Base section