Display Fields - Gilson AC-250 Operating Manual

• MACHINE SETUP: This brings up a screen containing various units of measure and machine options (see Fig.
6b). A user can toggle on/off the checkbox for either the touchscreen or over-travel limit switch detection. It
is strongly recommended to leave the over-travel limit switch detection on if the frame is equipped with the
device.
• VERIFY CALIBRATION: This button allows access to the verification and calibration screens. Calibrating and
verifying the machine allows for accuracy exceeding ASTM E4 requirements. This menu is discussed in detail
in the calibration section.
• GENERATE REPORT/TRANSFER: This button is used to reprint specimen reports, create summary reports, and
transfer data files to an external USB flash drive.

6.3 Display Fields

• LOAD: This is the current live load measured at the machine's main ram. This is a calculated value based on
the ram's hydraulic pressure and diameter. This value can be reset at any time, except when a test is running,
by pressing the "Tare Load" button. Resetting the value allows for compensation for materials placed on the
ram that do not exert force on the test specimen.
• STRESS: This is the current live stress measured at the machine's main ram. This is a calculated value based
on the specimen's calculated load and surface area (or other methods per applicable ASTM or other stan-
dards). This value can be reset at any time, except when a test is running, by pressing the "Tare Load" button.
Resetting the value allows for compensation for materials placed on the ram that do not exert force on the
test specimen.
• MAX LOAD: This is the peak load encountered by the specimen since it was last reset. This value is reset at
the beginning of every test.
• MAX STRESS: This is the peak stress encountered by the specimen since it was last reset. This value is reset
at the beginning of every test.
• RAMP RATE: This displays the current ramp rate during a test.
• THIS TEST: The ID for the currently running or last completed test. This must be an integer on standard ma-
chines.
• NEXT TEST: This is the next test ID. It can be manually entered or auto-generated, as described below.
• AUTO (CHECKBOX): This is used to activate "Auto Test ID" mode. "Auto Test ID" mode allows the system to
increment the test number by one for each test performed.
Automatic Concrete Compression Machine Manual
Fig. 6b: Machine Parameters (Machine Setup) Window
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