Ransburg DynaFlow User Manual - Manual (Page 56)

LN-9400-00.9
DynaFlow TM User Manual - Operation
52
Calibration Mode
The first time that the system is operated after
installation or when using new fluids, calibration is
recommended for the flow meters (CHANNELs).
There are several procedures that can be used
for calibration (see the Calibration Mode Section).
Flow meters can be calibrated by fluid weight or
by fluid volume. All calibration measurements are
metric, such as weight is measured in grams and
volume in cubic centimeters (cc).
Procedure 1 (Manual)
1. Place the controller in Calibration Mode - se-
lect manual procedure.
2. Place a graduated container beneath the cal-
ibration valve or applicator paint feed tube/
nozzle.
Code, located in the System configuration table,
determines if a Pot-Life Fault activates the horn. A
Pot-Life Fault can only be reset by eliminating the
expired material from the fluid lines, or by setting
the Pot Life Time to zero in the JOB Parameters.
The horn will be turned off, however by issuing a
Clear Faults command. A Pot-Life Fault does not
turn off the GUN.
The DynaFlow system uses the Mixed Volume
and the Pot-Life Time when it monitors the flow
rate of the Gun. Pot-Life is monitored by dividing
the Mixed Volume into 40 equal sized "buckets"
of material. When an amount of material has
flowed that equals the "bucket" volume, the 40
"'buckets" are time-shifted so the oldest "bucket"
is eliminated, representing the material that has
vacated the Mixed Volume tubing at the GUN, and
a new 'bucket' is added. If the GUN is in either
Run or Load mode, a time value of 1 second is
placed in the new "bucket" to represent mixed
material. If the GUN is in Clean mode, a time
value of zero is placed in the new "bucket" rep-
resenting solvent. Every second, the time values
stored in the "buckets" are incremented if they are
nonzero (i.e. contain mixed material vs. solvent).
A Pot-Life alarm condition exists if any of the 40
"buckets" contains a time value greater than the
Pot-Life Time (see JOB parameters). A Pot-Life
alarm may be cleared by entering a Pot-Life Time
of zero seconds.
3. Start fluid flow. Open the calibration valve or
trigger the GUN.
4. Collect fluid manually into the graduated con-
tainer for a specific time.
5. Stop fluid flow.
6. Select "Stop Cal".
7. Measure the amount of fluid collected.
8. Enter the measured volume of fluid.
9. Accept or reject the new Pulses Per Liter
number that the controller calculated. The flow
meter calibration will automatically be updated.
Required:
- Specific gravity of material
- Digital scale, accurate to 0.10 grams
1. Weigh the empty beaker and record the tare
weight for later calculations.
2. Enter the calibration mode for the desired
CHANNEL.
3. Perform the desired collection procedure
above.
4. Weigh the fluid in the beaker and subtract the
beaker tare weight to get the net weight of the
fluid collected.
5. Entered the measured weight.