Digi Counting Version 4.0 DC-190 用户手册

下载
页码 33
Scale Operations
27
6.2
Toggle Between Scales
To switch the displays from Scale 1 through Scale 4, press the 
SCALE
 key when in weighing mode. Only scales
present are selected. For example, a two-scale system switches between Scale 1 and Scale 2 only. In a four-scale
configuration, the 
SCALE
 key functions as follows:
1. Press 
SCALE
 key to change from Scale 1 to Scale 2. 
2. Press 
SCALE
 key to change from Scale 2 to Scale 3.
3. Press 
SCALE
 key to change from Scale 3 to Scale 4.
4. Press 
SCALE
 key to change from Scale 4 to Scale 1.
NOTE:
 Scale number assignments are set using SPECs 16 and 17.
6.3
Toggling Between Net and Gross Weight
To  toggle between net and gross weight, a tare value must be entered into the scale (see Section 6.1). 
NOTE:
SPEC 25, bit 0 (Gross Mode Available) must be set to 0 (default) to enable gross mode.
After a tare value is entered into the scale, items placed on the scale will cause the 
NET
 annunciator to illuminate
and allow toggling between net weight and gross weight.
An example of toggling between net weight and gross weight is shown below:
1. Place 0.5 lb weight on the scale and then press 
TARE
 once. The 
WEIGHT
 display should show 
0.000
 lb.
2. Place another 0.5 lb weight on the scale. The scale 
WEIGHT
 display should now show 
0.500
 and the 
NET
annunciator should be illuminated.
3. Press 
NET/GROSS
. The 
WEIGHT
  display should show 1.000  and the 
GROSS
  weight annunciator is
illuminated. The 
UNIT-WEIGHT
 and the 
QUANTITY
 displays go blank. 
4. Press 
NET/GROSS
. The 
WEIGHT
  display now shows 0.500  and the 
NET
  weight annunciator is
illuminated.
6.4
Entering Unit Weights 
SPEC 0, bit 0 (
Piece Weight Selection
) works in conjunction with the 
UNIT-WEIGHT
 display. Setting the bit to 0
specifies that the 
UNIT-WEIGHT
 value shown is per 1000 pieces and the 
UNIT WT PER 1000
 annunciator is lit.
Setting bit 0 to 1 specifies that the unit weight value shown is per one piece (A.P.W.).
NOTE:
 
SPEC 4, bits 1 and 2 (Insufficient Sample Level) control unit weight sampling. The default value is 0.1 percent.
6.4.1
Unit Weight Operation by Sampling
Unit weight operation by sampling is accomplished by placing a known quantity of pieces to be sampled on the
scale and then pressing the 
PIECES
 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 scale.
2. Place 10 pieces of the item to be sampled on the scale. 
3. Press 
PIECES
  key then wait a few seconds for the computation. If the sample weight is sufficient
(
INSUFF
  annunciator is off), the 
WEIGHT
  display shows the total sample weight; the 
UNIT-WEIGHT
display shows the unit or per 1000 weight for the 10 sample pieces (depending on the value of SPEC 0,
bit 0, as described above); the 
QUANTITY
 display shows the number of pieces (10). 
If the weight of the sample is insufficient (
INSUFF
 annunciator is on), add pieces to the initial sample
until the 
INSUFF
 annunciator goes off. 
If SPEC 5, bit 2 (unit weight auto-recomputing), is set to 1, place required pieces on the scale. The
scale automatically recomputes the unit weight.
If SPEC 5, bit 2, is set to 0, use the keyboard to enter the new number of sample pieces then press the
PIECES
 key again to recompute the unit weight.