Operating Procedure - Ametek Chandler Engineering 4207D Operating Manual

2-4 SECTION 2 – OPERATING INSTRUCTIONS
calibration values must be configured in the display and controller (CONFIG
– IP menus).
The display is configured to display the current value. To display the peak value, press the
UP or DOWN arrow, the peak value will display for 2 seconds then revert to the current
value.
The load cell used in the instrument is rated for 0 – 50,000 Lbf. The load cell output is not
exactly 0.000 mV due to the mass of the platen. The display is adjusted to display 0 Lbf
using the Offset option. This value is set by the factory but may require periodic
adjustments:
• Press Scroll one time until OFS.1 is displayed.
• Press UP or DOWN arrow to change the value. Adjust the value until the main display
indicates 0 Lbf.
• Press Scroll two times to return to the main display.
Although the 5270 software resets the peak value in the display when a new test starts, the
user may manually reset the stored peak using the following procedure:
• Press Scroll two times until RES.L is displayed.
• Press UP or DOWN arrow two times to select YES. The display will flash.
• Press Scroll one time to return to the main display.

Operating Procedure

1. Turn the system On.
2. If required, push the cylinder control switch, located to the right of the power switch, to
the Down position to lower the platen. This will lower the platen to provide adequate
clearance for the sample.
3. Turn the cylinder control switch to the Off position.
4. The platen has an engraved square that will approximately match the size of the sample
block. Place the sample within the center of this square. It is critical that the sample be
centered on the platen. Leave approximately ¼" of clearance between the sample and the
top platen.
5. Close the door on the press assembly.
6. Reset the peak value stored in the display by pressing the Scroll button until RES.L is
displayed. Press Up or Down arrow two times to select YES. The display will flash.
Press the Scroll button to return to the main display.
Note: The 5270 DACS software will automatically reset the peak value stored by the
display when a data acquisition test is started.