Limits Section Functions - Instron 4400 Series Operator's Manual

Table 4-3. Limits Section Functions (continued)
STATUS A rectangular STATUS LED is located to the right of the
LEDs BREAK key and one each between the LOAD,
EXTENSION, and STRAIN MAX/MIN limit keys. When a
limit or break detection is selected to cause a crosshead
action (except OFF), the related STATUS LED lights.
When either a STOP or RETURN action occurs, the
STATUS LED will flash and stay flashing until recycled by
starting a new test.
If the current value of load, extension or strain is beyond
the assigned limit ranges, then the crosshead control key
(UP or DOWN) which would increase the out-of-range
error is disabled. If this disabled key is pressed, the
crosshead will not move and the related limit status LED
flashes. The flashing continues until the enabled key (UP
or DOWN) is pressed and the crosshead is moved in a
direction to decrease the out-of-range error.
Function Of Controls
4-15