panel of the console (see Figure 8-1). The bottom,
number 3 switch is marked STRAIN UNITS.
To change the position of the Strain Mode switch, push
on one side of the switch with a pointed tool, such as a
ball point pen. To set the mode to displacement units,
push the switch to the side marked “ON"; and for Per-
cent, push it toward the side marked ”3".
If you change the strain mode setting while the system is
powered down, the Main Panel display shows “LOSS”
when power is applied. This indicates that nonvolatile
memory is reset to the default state and stored test data
is lost. Load and strain channels must be recalibrated
and electronic limits reset.
If you change the strain operating mode with power ap-
plied to the system, there is no indication on the front
panel. You must perform ONE of the following proce-
dures to make the change valid:
(a) Cycle main power off, then on, or
(b) Enter the system reset sequence: Press [S1], then [0]
and ENTER on the keypad, or
(c) Enter the “warm start” sequence: Press [S1], then [1]
and ENTER on the keypad.
After you switch the strain operating mode and perform
one of the above procedures, the Main Panel display
shows “LOSS”, indicating that nonvolatile memory is re-
set to the default state and stored test data is lost.
Note
After you change the strain operating mode for
a calibrated system, you must recalibrate the
AS 1
System
Operation
Strain Calibration
5-19
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