Ametek BROOKFIELD CT3 User Manual

AMETEK Brookeld Page 28 Manual No. M08-372-F1116
the probe will run at a speed slower than what was entered in the setup screen.
When the measure LOAD equals the TARGET LOAD assigned in the setup screen (the CT3 must
detect two readings at the target load for valid detection), the CT3 begins the HOLD portion of
thetest.Atthistime,theDISTANCEvalueissaved,andtheTIMEeldisreplacedwiththehold
time value which starts the count down to zero. The CT3 repositions the probe, as necessary, to
maintainthemeasuredLOADwithin0.5%ofthefullscaleloadcellcapacity.TheLOADand
DISTANCEeldsremainactive.
WhentheTIMEeldcountstozero,thetestisstopped.Theprobeisretractedtothepre-positioned
start position using the post test speed. The display TIME remains at zero. DISTANCE and LOAD
eldsremainactive.TheCT3continuestointernallyrecordLOADmeasurementsandlogsnegative
values of LOAD as the probe moves upward. When the probe reaches the start position, the display
advances to the FINAL screen.
During the running of the test, pressing and holding the Select Knob causes the display to revert to
the setup screen, but the actual test will continue to run uninterrupted. Releasing the Select Knob
returns the display to the RUN screen. Activating the EMERGENCY STOP knob will terminate
the test and return the probe to the HOME position. Pressing the STOP button will also abort the
test, retract the probe to the HOME position, and return the display to the TARGET HOLD SETUP
screen.
After the probe has been returned to the start position, the display will show the test results:
DISTANCE AT START of hold period, DISTANCE AT END of hold period, DEFORMATION,
ADHESIVE FORCE, ADHESION, and TEMPERATURE. Since only four lines are available on
the display, rotating the Select Knob will scroll down for the added parameters. Figure III.31 shows
examples of a hypothetical test.
FINAL SCREEN
SCROLLED DOWN
DIST@START: 23.4 mm
DIST@END: 30.1 mm
DEFORMATION: 6.7 mm
ADH. FORCE: 33.5 g
DIST@END: 30.1 mm
DEFORMATION: 6.7 mm
ADH. FORCE: 33.5 g
ADHESION: 5.34 mJ


DEFORMATION: 6.7 mm
ADH. FORCE: 33.5 g
ADHESION: 5.34 mJ
TEMP: 100.6 C


FINAL SCREEN
SCROLLED DOWN
FINAL SCREEN
SCROLLED DOWN
Figure III.31
DEFORMATION is the difference in distance between DIST@START and the DIST@END.
ADHESION (ADHESIVENESS) is the area under the force vs. distance curve for ALL negative
values of load detected at the end of the test as the probe returns to the HOME position. (The current
standaloneTPAtesthasacalculatednalscreenvaluecalledADHESION,reportedinmJoules.The
Target Hold calculation is performed in the same way.) ADHESIVE FORCE is the peak negative

Ametek BROOKFIELD CT3 Specifications

General

Brand	Ametek
Model	BROOKFIELD CT3
Category	Measuring Instruments
Language	English