Hardy 1734-WS Installation & Operation Manual
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Calibration Setup Procedures
Unit of Measure
The Unit of measure can be set to ounces, pounds, tons, grams, kilograms, or metric tons. Any weight value input
to the module (e.g. CALLOW WEIGHT, SPANWEIGHT) is in the currently selected units. The unit of measure can
be set at any time, not just at calibration. Setting the unit of measure before calibrating reminds the user what
unit of measure is being displayed.
It is important to note that the weigh scale module does not need to be calibrated again after changing the unit
of measure.
Motion Tolerance
The motion tolerance defines the amount the weight reading needs to change in a 1 sec period of time to make
the scale go into MOTION status. If the change over the last 1 sec is less than the Motion Tolerance then the
scale will not indicate in motion. “Motion Indicate” means the weight on the scale is currently changing. The
scale cannot be calibrated, tared, or zeroed while in motion.
Zero Tolerance
The Zero Tolerance sets the range of weights so that the Zero Command works as an offset of the calibrated
Zero. The amount of weight zeroed off is cumulative. The zero command will fail if the current gross weight plus
any previously zeroed amount exceeds the zero tolerance.
Auto Zero Tolerance
When the Auto Zero Tolerance is entered and Auto Zero Tracking is enabled, any weight within the entered
tolerance of zero and not in motion will cause the display to automatically read zero.
The amount of weight zeroed off is cumulative. The auto zero command will not run if the current gross weight
plus any previously zeroed amount exceeds the zero tolerance or if the scale is in motion.
Zero Track Enable
Enables the Auto Zero tracking if on or disables the auto zero when off.
Number of Averages
The Number of Averages sets the number of weight readings which will be used to compute the displayed
weight. The average is a sliding average so that a new average reading is available for display at every reading.
Span Weight
The Span Weight is a Calibration high reference point derived from an actual measured weight. This should not
be confused with the Scale Capacity. If you have a 100 pound weight and you place it on the scale, the Span
Weight would be 100 pounds.