Specifications

Scale Operations 25
accumulation of tare values. To allow Tare Subtraction, SPEC 45, Bit 3 TARE DECREASE must be set to “1: YES”.
5.4.4 Tare Accumulation
1. Press the REZERO key to zero the scale.
2. At the Counting Mode Screen, place the container, box or item to be tared on the platform and press the
TARE key. The Weight Display should now show 0 and the NET indicator lamp will illuminate. If you
enter the Tare Weight digitally and press the TARE key, the Tare Weight will show in the Weight
Display with a minus sign in front of it and the NET indicator lamp will illuminate.
3. Place another item to be tared on the platform and press the TA RE key again. This will add the two tare
weights together (Tare Accumulation). When using Digital Tare entry, the next tare weight value should
not be lower than the previous one. If you enter another tare weight digitally and press the TARE key,
the Weight Display will show the accumulated Tare Weight.
4. Repeat Step 2 until you have accumulated all the tare weights necessary for your weighing and counting
operation.
5. If you remove all the tare weights from the platter, the Weight Display will show the accumulated Tare
Weight.
6. To clear the accumulated tare weights, press the TA RE key after removing all the tare weights from the
platter. The NET indicator lamp will no longer be illuminated.
5.4.5 Tare Subtraction
1. Press the REZERO key to zero the scale.
2. At the Counting Mode Screen, place the container, box or item to be tared on the platform and press the
TARE key. The weight display should now show 0 and the NET indicator lamp will illuminate. Tare
subtraction cannot be done digitally.
3. Remove the amount of the tare that you want to subtract and press the TARE key to subtract it.
4. Repeat Step 3 to subtract more tare weights until you have the desired tare weight.
5. To clear all the tare weight, remove all tare weights from the platter and press the TARE key. The NET
indicator lamp will no longer be illuminated
5.5 Operations in Normal Counting Mode
Unit Weight Entry, Counting Operations, and Accumulation and Subtraction can be done either in Normal
Counting Mode or in TEP (Teraoka Error Prediction) Mode. This section (
Section 5.5) will cover operations in
the Normal Counting Mode. For operations under TEP Mode, see Section 5.6.
5.5.1 Normal Counting Mode - Unit Weight Operation by Sampling
Entering unit weights can be done either by sampling, as presented in Section 5.5.1, or by manual key entry as
described in Section 5.5.2.
NOTE: SPEC 53, Bit 2 NORMAL COUNTING MODE AUTO-RECOMPUTING controls whether or not you have to push the PCS
key to recompute the Unit Weight after resampling. The default is “1: Auto” which means that you do not have to press the PCS
key except after placing the very first sample in the sampling process.
Unit Weight operation by sampling is accomplished by placing a 10 piece sample on the scale and then pressing
the
PCS key. The scale calculates a Unit Weight based on the capacity of the scale compared to the weight of the
sample.
1. Press REZERO to zero the scale.
2. Place a number of pieces of the item to be sampled on the scale. The DC-530 assumes that you are using
a 10 piece sample unless you indicate otherwise in the next step. For maximum accuracy, count the
sample into your hand and then add the entire sample to the bin at one time, instead of adding them one
or two at a time.
3. If you are using a 10 piece sample, simply press the PCS key. The scale will display the total Weight,
Unit Weight, and number of Pieces. If you are using a sample size other than 10 pieces, enter the sample