Hitachi CHROMASTER 5160 Instruction Manual page 869

Sampling order
pattern code: 1
Pattern code: 5
Pattern code: 2
Pattern code: 6
NOTE: The coordinate position indicated in the fig.3-5
determines rack parameters for X1 (X coordinate of first
vial), Y1 (Y coordinate of first vial), X2 (X coordinate of
last vial), Y2 (Y coordinate of last vial). Select the
pattern cord type of the rack parameter to change the
order of the vial for analysis.
3 - 25
Pattern code: 3
Pattern code: 7
Pattern code: 4
Pattern code: 8