Display Section Functions - Instron 4400 Series Operator's Manual

Table 4-2. Display Section Functions (continued)
PEAK Sets the displays to show load, extension and strain
values that occur at the peak load during a test. These
values are held on the display at the end of a test. When
a test begins, the displays show current tracking values
until a "peak" load is reached. The PEAK LED is lit when
this key is active.
BREAK Sets the displays to show load, extension and strain at
specimen break, where break is defined as just prior to
break detection. When a test begins, the displays are
blank and remain blank until the break criteria is met. The
BREAK LED is lit when this key is active.
PEAK Sets the LOAD display to show the peak load value for a
BREAK test and the EXTENSION and STRAIN displays to show
values that occur at specimen break. The LED at this key
is lit when the key is active.
RESET PEAKS This key is used during a test to reset the stored peak
values of load, extension, and strain to the values at the
current load. The peak storage is then continuously
updated to the values at the next peak load that occurs
during the remainder of the test. This key does not
change which values are selected to be displayed
(Break, Peak, or Track) and it is functional only when a
test is in progress.
Function Of Controls
4-13