Instron DX Series - Operation of Controls

31
Operation of controls
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AT ZERO Indicator
(or AT GL Indicator)
User control
panel
(Figure 5)
This indicator illuminates when the piston is at the preset zero extension
point. It will also illuminate when you press the ZERO EXTENSION
button, which indicates that the current position of the piston is now the
new zero extension point.
POWER Indicators User control
panel
(Figure 5)
This POWER indicator illuminates when power to the 59 Series control
unit is on.
Associated with this are FRAME STANDBY and FRAME READY
indicators. Certain subsystems, such as the load cell and its conditioner
board, require a somewhat lengthy warm-up time. In FRAME STANDBY,
power is supplied to these subsystems but not to the HPS (frame is
disabled). In FRAME READY, the system supplies power to all
subsystems including the HPS (frame is enabled). The system is ready for
operation.
SPECIMEN PROTECT
and Indicator
User control
panel
(Figure 5)
SPECIMEN PROTECT is an electronic function that protects test
specimens and load cells from overload during test setup. Press this
button to toggle this function on and off. The ON indicator shows when
SPECIMEN PROTECT is on and off. The indicator blinks when
SPECIMEN PROTECT is on. SPECIMEN PROTECT must be set up in
the controlling software before it can be turned on (see software manual
or on-line help for information on setting this feature). Also, it can only be
turned on when the frame/HPS is enabled.
START TEST User control
panel
(Figure 5)
Press this button to begin the test once all test parameters are set. Up
and Down Arrow indicators show the type of test selected (Up indicates
tension and Down indicates compression).
STOP TEST User control
panel
(Figure 5)
Press this button to stop motion of the piston at the end of the test, if it
has not already been programmed at the computer.
RETURN User control
panel
(Figure 5)
This function is dependent on the controlling software; refer to the
controlling software’s On-line Help.
LOAD 59 Series
control unit
A female 25-pin interface that connects the system’s load cell to the
transducer conditioning card.
STRAIN 1 59 Series
control unit
A female 25-pin interface that connects an extensometer to an optional
transducer conditioning card.
STRAIN 2 59 Series
control unit
A female 25-pin interface that connects an extensometer to an optional
transducer conditioning card. (Typically only required for transverse strain
or other dual extensometer setups.)
SERVICE Display 59 Series
control unit
Provides an indication of self-tests that are performed by the controls
when the system is powered up and is also an indicator of system status.
System status is normal when the T indicator is green and the A indicator
is blinking red.
Table 9. Control functions. (Continued)
Control Location Description