SYSMEX SF-3000 - Page 590

TECHNICAL INFORMATION, ID Bar Code, Check Digit
C-24 Sysmex SF-3000 Operator's Manual -- Revised September 1995
(6) This check digit is appended to the ID number;
the bar-code label is now 15-2345-67897.
(7) When the ID Reader reads this bar code label, the instrument computes the check-
digit by using the first weight set and recognizes the read as a valid read if the
remainder is 0. If the remainder is not 0, the instrument computes the check-digit
by using the second weight set and recognizes the read as a valid read if the
remainder is 0.
(D) Modulus 16
The Modulus 16 is the check-digit computation method used in the NW-7 and
CODABAR symbologies. Since the NW-7 and CODABAR symbologies use 4 kinds of
start/stop codes, these start/stop codes are computed from the data digits.
The following example uses the ID number D998147D.
(1) Add the values of all the data characters including the start and stop codes. The
numerical value of each of the data character is given below:
Character Value Character Value Character Value
0
1
2
3
4
5
6
0
1
2
3
4
5
6
7
8
9
–
$
:
/
7
8
9
10
11
12
13
.
+
A
B
C
D
14
15
16
17
18
19
Sum = 19+9+9+8+1+4+7+19 = 76
(2) Divide the sum by 16 and get the remainder. Then subtract the remainder from 16.
The result is the check-digit. When the remainder is 0, check-digit becomes 16. In
such a case set the check-digit to "0".
76/16 = 4; remainder = 12,
16-12 = 4,
Hence the check-digit is 4.
(3) This check-digit is appended to the left of the stop code in the ID number; the bar
code label is now D9981474D.
(4) When the ID Reader reads this bar code label, the instrument computes the check-
digit and recognizes the read as a valid read if the remainder is 0.