Eagle Microsystems EI-2000 User Manual

Page 10

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Scale Selection (cont.)

To load default scale calibration for the scale selected above, press and hold the RIGHT
SELECT (EI-2000)/SELECT (EI-1000) pushbutton until LOAD YES/NO (Y/n) appears. Press
the (RIGHT) UP ARROW to select yes or no (Y/n) and then press the (RIGHT) SELECT
again to enter your choice. This also must be done for channels two through four (if enabled).

P110 Full-scale (10 to 9900)

This sets the full-scale in the units selected by the lb/kg switch, S1-3. This is used to limit set
points and other parameters that are entered using lb or kg weighing units.


P111 Resolution (0.0001 to 500)
This sets the weight division for the unit selected by the lb/kg switch. The choices for the EI-
2000 are 0.1, 0.2, 0.5, 1, 2, and 5. The choices for the EI-1000, since it has a six digit display,
are extended to the range of 0.0001 to 500.


P112 Average (1, 2, 4, 8, 12, 16, or 20)
This parameter sets the number of scale weight acquisitions before the display is updated to
the weight on the scale. Higher numbers yield a more stable less responsive meter reading.


P113 Auto-zero (off, 0.01, 0.02, 0.03, 0.05, 0.1, 0.2, 0.3, 0.5, 1, 2)
Auto zero is used to automatically zero the meter (same as pressing the zero pushbutton).
This setting controls how much of scale range in percentage will automatically be zeroed
when the load (e.g., container, tank or cylinder) is remove from the scale. All negative values
are zeroed regardless of this setting unless it is set to off.
Example: If full-scale is 300lbs and auto-zero is set to 0.5 (%), the weight must be below
1.5lbs for the meter to automatically zero the scale.


P114 Push to Zero/Auto-zero PTZ/AZ maximum range (2, 5, 10, 20, 50, or ALL).
When the load is removed from the scale, in an ideal world, the weight returns to zero.
However, usually the meter reading is above zero. If the auto-zero is enabled (Px13) and the
weight is within its range, the meter will automatically zero the weight. If it’s not, the user
should press the zero pushbutton for the selected channel.

The PTZ/AZ parameter, set in percentage of full-scale, selects the maximum amount of
weight that is permitted to be zeroed either automatically or by pressing the zero pushbutton.

Example: If full-scale is 300lbs and PTZ/AZ is set to 2 (%), the weight must be below 6 lbs for
the meter to allow the automatic zero (AZ), if enabled, to zero the scale or the ability to zero
the scale via the ZERO pushbutton. Note: If the threshold (Px16) weight is exceeded, the
automatic zero and pushbutton zero are inhibited.

Note: The “ALL” setting allows unlimited zeroing ability, which is not a recommended setting
since the scale load-cell may be shifting too much.

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