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312759R 31
Dispense Check Options, Screen #4
Change in Velocity, Change in Pressure, Change in
Ratio or Volume
NOTE: The machine must have pressure transducers
installed for Change in Pressure to be available. The
machine must have flow meters installed for Change in
Ratio or Volume to be available. The Change in Velocity
function is available on all machines. If a non-zero value
is entered for an unavailable function, an error will be
displayed.
During machine calibration the machine measures and
obtains base values for piston speed, fluid pressure, and
fluid ratio or volume. The machine also records when
the pressure rises for each side, to get a base value for
phasing.
NOTE: The pressure transducers are designed to work
with the hoses available in the PR70 configurator. If they
are used with other hoses, unexpected alarms may
occur.
When any of these three dispense check features are
enabled by entering a value other than zero, the
machine will compare the value seen during each dis-
pense to the values measured during calibration. If the
values are farther than the input percentage from the
calibration values, an error is shown after the dispense.
See Error Codes on page 71. This warning signals the
user of a less than optimal dispense or possible
machine malfunction.
The available input values for Change in Velocity and
Change in Pressure are 0 (off), 20, 40, or 60 percent.
The acceptable input value for Change in Ratio or Vol-
ume are 0 (off), or 1 through 10 percent. If an invalid
number is entered, it will automatically be rounded to the
nearest valid entry.
F
IG. 18
Key:
PA Enter/Exit Screen
PB Change in Velocity
PC Change in Pressure
PD Change in Ratio or Volume
PE Ratio Type (Volume or Weight)
PF A Side Flow Meter Calibration Factor
PG B Side Flow Meter Calibration Factor
PH Active Screen Name
PJ Adjacent Screen Names
PK Active Screen Number
PL Adjacent Screen Numbers
PJ
PJ
PH
PA
PB
PC
PD
PE
PF
PG
PL
PK
PL