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TFA Specifications
Sample Sizes
| Dimensional
stability |
14.1cm x 11.7cm
(5.55" x 4.6" max) |
| Standard load
based test |
3.08cm x 15.3cm
(1.21" x 6.02") |
| High load test |
May require a
necked (dog bone) sample, depending on expected load: necked down to 1.50 cm (0.59") |
| Minimum
thickness |
The actual
material properties will determine the minimum thickness. |
| Maximum
thickness |
3mm
(0.12"), depending on clamp foot design |
| Short column
test |
5.1cm X 3.2cm
(2" x 1.25".) This sample size may vary depending on ultimate load potential,
flute type etc. |
| Option 1 |
Pass through
sample preparation punches |
Load Range
| Internal
load frame capacity |
±1.3344kN
(300 lbf) |
| External
load frame |
(Biaxial)
capacity: ±444.8 N (100 lbf) |
| A/D
conversion |
16
bits resolution |
| Load
control |
16
bits resolution. NOTE: this device's cross head motion uses load control. |
| Load
ramp rates |
User
selected, computer generated. |
| Calibration |
444.8
N (100 lbf) load ring standard |
| Option
1 |
Biaxial
test frame and fixture (external load frame) |
| Option
2 |
Short
column test fixtures. |
Extensometers
| Precision
extensometers are used for motion sensing. One or two are used with most load tests. The
dimensional stability test uses three. Typical setups use 25.4mm (1") gage length 10%
extensometers. A/D conversion is at 16 bit resolution. Z direction
data uses a DVRT. |
| Option 1 |
25.4mm (1")
gage extender for 5% operations |
| Option 2 |
1 - 2mm (micron
level) Z direction or precision measurements |
|
Option 3 |
Optical
measurements |
Software
| Option 1 |
Microsoft® SQL
Server® data storage |
| Option 2 |
Internet enabled
remote monitoring and email event notification |
| Option 3 |
Robotic specimen
loading |
Relative Humidity
| The standard
setup in a 22.8°C (73°F) 50% room will control (depending on proper test setups) 25% to
95% RH (non-condensing). A typical accelerated load test may use a 10 minute 30%-90%
sinusoid control ramp. Faster square wave cycles are possible, however, the system
response may not follow the square wave input within the 2% target. |
| Option 1 |
Below 10%
operations |
| Option 2 |
Above 95%
operations - Condensing water may result in control issues. |
| Option 3 |
Optical moisture
sensor. |
Temperature Control
| The standard
setup exchanges heat to ambient room conditions. |
| Standard |
22.8°C (73°F);
50% RH. |
| Option 1 |
Stabilized to
22.8°C (73°F) |
| Option 2 |
User
defined temperature setpoint,
e.g. 10°C (50°F). |
Connections
| Power |
Typically
240VAC 3 phase 30A 60Hz |
| Water
input (daily) |
(distilled
preferred) 0-20 Liters (0-5.3 gallons) |
| Waste
water drain (daily) |
(excess
working and dehumidifier drain) 0-11 Liters (0-2.9 gallons) |
| Auxiliary
inputs |
Room
condition recording. |
| Vacuum
pump exhaust vent |
Vented
outside preferable. |
| Utility
cabinet cooling vent |
Vented
outside preferable. |
| Option
1 |
House
air pressure (if available, else air compressor required) |
| Option
2 |
Analog
phone line |
|
Option 3 |
Network
connection |
|
Option 4 |
Printer
|
| Option
5 |
Alarms |
Dimensions
| Wall placement
requires extra room around the units |
| Test unit |
1.58m L x 0.914m
W x 1.52m H (62"L x 36"W x 60"H) |
| Utility cart |
1.96m L x 0.84m
W x 0.86m H (77"L x 33"W x 34"H) |
System configuration and specifications may change without
notice.
Delphinus reserves the right to make, from time to time, such departures from the
detail specifications as may be required to permit improvements in design of its products.
Components made under military approvals will be in accordance with the approval
requirements. The information included herein is believed to be accurate and reliable.
However, Delphinus assumes no responsibility for its use; nor for any infringements of
patents or other rights of third parties that may result from its use.
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