Fishman AIRFREE LDS9000 - Manual (Page 6)

6
Operation
The LDS9000 Dispensing System uses a patented Linear Drive System
(LDS) to transfer force from the drive motor to the syringe piston. The
motor, lead screw and syringe piston are linked mechanically. Each
attachment (gun to reservoir, gun to piston, piston to reservoir) is
specifically designed to provide zero flexing in the system during a
dispense. Simply put, zero flexing is what makes the LDS9000 the
world’s most repeatable dispenser.
Once the dispense cycle is complete, a
programmed mechanical pullback retracts the
drive rod which is mechanically attached to
the AirFree
TM piston. The combined action of
the plunger with the preprogrammed forward
steps, and pullback feature produces a highly
repeatable deposit with no post-dispense
ooze. A pause between forward and reverse
motion can be programmed in for use with
compressible fluids.
The inner diameter and length of the syringe
barrel are used to calculate dispense volume.
For example, the inner diameter of a 10cc
syringe barrel measures 1.63cm. One forward
step of the motor moves the drive rod/piston
.00127cm, resulting in .0026cc of fluid being
displaced. With a 5cc barrel, it takes two
steps to displace the same amount of fluid.
Flexible Control Cable
An electronic signal is sent via the electronic
control cable that connects the dispense gun
to the control box. The signal energizes the
motor pushing the drive rod, attached to the
piston, into the syringe barrel. The forward
motion forces the fluid out to make a deposit.
Power Supply
The LDS9000 features a universal power
supply. It automatically adjusts for input
voltages ranging from 100 VAC to 240 VAC.
There is no adjustment required by the user.
Flexible
Control
Cable
Patented
Linear
Drive
System