
4 - Description of Function
Function
Infinium LiHa and Infinium RoMa Operating Manual - Document # 1000000110155 v00
4 - 5
Function
LiHa
Movements
The liquid handling arm moves left and right driven by a servo motor.
Tip Movements
Each sampling tip is raised or lowered by a servo motor within the LiHa.
Two additional servo motors inside the liquid handling arm drive the tips forward
and backwards and control the Y-spacing of the tips.
Two, four or eight sampling tips are arranged on one liquid handling arm. The tips
can be moved independently in Z-direction. In Y-direction equidistant tip
spreading of 9 - 38 mm (0.31 - 1.5 in.) is possible.
Tip Types
Tips serve to pipette liquids in different volume ranges.
Fixed tips
Liquid Level
Detection
The LiHa arm holds electronics to detect the level of liquids in plate wells, tubes
and liquid containers. For details refer to section
Fig. 4-4
Liquid handling arm movement
X
Y
Z
X
X-range liquid handling arm move-
ment left and right
Y
Y-range for tip movement and tip
spacing front and rear
Z
Z-range for tip movement up and
down