Appendix 1-3: First Drop Compensation In Pulse Mode - Graco Advanjet Diaphragm-Jet HV-2000 Setup And Operation

Appendix 1-3:
 In this mode, the controller produces ―n‖ drops when it receives a trigger signal,
where ―n‖ is the number of drops.
 Refill Time for the first dot = Refill + T
 Refill Time for all subsequent dots = Refill (no added first drop compensation)
 If the number of drops is set to 1, the refill time will always be Refill + T
there are no subsequent dots.
Example 1: Number of drops = 1
In the timing diagram below, T* = T
Therefore, each drop = Refill + T
ON
TRIGGER SIGNAL
OFF
JET BUSY OUTPUT
JET DRIVER
ON
OFF
JET DISPENSING
Figure A1- 1: 1
Page 40 of 60
First Drop Compensation in PULSE Mode
+
+
ELAPSE TIME
DWELL
REFILL
+
T* (T )
REFILL TIME = REFILL + T* (T
st
Drop Compensation in PULSE Mode, # of Drops = 1
Advanjet HV-2000C Jet Controller Setup and Operation
+
+
)
+
because
DWELL
REFILL TIME =
+
REFILL + T* (T )
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