Scale Operations
23
5.2
Teraoka Error Prediction (TEP) Function
The DC-530 counting scale includes the DIGI TEP (Teraoka Error Prediction) Function which detects weight
variances in sample quantities and calculates the maximum quantity of that piece that can be counted without
introducing error. To make the operator’s job easier, the scale’s display will change from green to yellow or red
when the maximum safe quantity has been exceeded. This function works by performing a series of sampling
operations which the scale uses to plot the weight variances of the pieces being weighed. By then accumulating
counting results within the calculated safe quantity, the counting operation can be completed without a counting
error. Although the TEP Function can be used at any time the scale owner or operator deems it appropriate, the
extra sampling involved to derive the plot make it most logical for high-value items.
Coupled with the DC-530’s internal counting resolution of 1/1,000,000, the TEP Function assures your precise
counting of high-value items.
5.3
The Mode Menu Screen
The starting point for using the DC-530 scale is the Mode Menu Screen. From this screen you have four options
to choose from:
1. Counting Mode -
to enter the Counting Mode Screen on which weights and counts are displayed;
2 - Program Mode -
to enter the Program Mode Screen where you will be able to further choose between
editing and deleting items in memory;
3 - Date and Time -
to enter the Date and Time Setting Screen; and
4 - Set Point Settings - to enter the General Set Point Setting Screen in which you can establish set points
not associated with specific items in memory.
Figure 5-2. Mode Menu Screen
To select the option desired, simply press the number key for the corresponding number on the numeric keypad.
The display will change to the screen for that option.
5.4
Tare Operation
Tare weights can be entered in the scale by one of two methods: one-touch tare or digital tare. Digital tare is used
when the tare weight is already known, while one-touch tare is used when the tare weight is unknown. If you call
up an Item Code already programmed into the DC-530’s memory and you have a Tare Weight stored for that
Item Code, the Tare Weight stored with the Item Code will override one entered digitally or by using the
TARE
key. The procedures illustrated below are the same for the Normal Counting Mode and the TEP Counting Mode
although only Normal Counting Mode displays are shown in the examples.
NOTES:
• SPEC 35, Bit 2 DIGITAL TARE SETTING must be a “1: YES” to allow digital tare.
• SPEC 35, Bits 1 and 0 TARE RANGE must be set to the appropriate tare range value. The default is “00: 100 PERCENT OF
FULL SCALE”.
• SPEC 37, Bits 3 an 2 DIGITAL TARE ROUNDING determines if a digital tare is stored as entered or rounded to the nearest
increment. The default is “01: Round to Nearest Increment.”
• SPEC 47, Bit 1 ZERO LAMP CONDITION determines whether the zero indicator lamp lights when a gross weight is being
displayed or a net weight. The default is “0: GROSS”.
5.4.1
One-Touch Tare, Tare Unknown
1. Press the
REZERO
key to zero the scale.
2. If the tare weight value is not known, place the container, box, or item to be tared on the scale and press
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