Settings
313813A
47
To check initial heating time, once the chemicals have
cooled to ambient temperature turn on the pumps and
heaters. If it takes too long to heat up, either raise the
gains or consider using Night Mode to maintain chemi-
cal temperature during down-time.
Pouring Settings
Iso, Poly Specific Gravity
Chemical specific gravities are entered from the Setup
screen, see F
. 13 on page 26. This entry is used to
calculate mass flow in grams by multiplying by the volu-
metric flow measured by the flow meter. It is very impor-
tant that the chemicals’ correct specific gravities are
entered, to ensure accurate pours.
Preset Pour Timers
Preset Pour Timers are presets that enable quick execu-
tion of pours with specific durations. To execute a pour
of a specific length, change one of the preset pour tim-
ers on the
, see page 25, then
select that channel on the Manual Control screen. Press
the “Start” button on the Manual Control screen. The
channel can be changed at any time and the next shot
duration will be based on the preset time for the selected
channel. If a channel has a time of “0.00” then no pour
will occur, but the pressure will build and hold in the
same manner as when a pour does occur.
Pressure Build Time
Pressure Build Time is set using the Setup screen, see
F
. 13 on page 26. When a pour is initiated the
machine will build pressure to get ready to pour. Pres-
sure Build Time gives the machine time to stabilize pres-
sure. Once a pour is initiated the build timer begins and
when the build time elapses if the machine has reached
high pressure the pour will begin.
A new pour that is started before the machine goes out
of high-pressure can begin pouring as soon as the pour
push-button is pressed. The time the machine stays in
high pressure is called “High Pressure Hold Time.”
High Pressure Hold Time
High Pressure Hold Time is set using the Setup screen,
see F
. 13 on page 26. This is the time that the meter-
ing system will stay in high-pressure after a pour has
been completed. This time should be increased if shots
are to be performed in rapid succession, so the machine
does not return to low pressure circulation. Allowing the
machine to exit high pressure circulation between rapid
shots will lead to a longer wait between shots.
Blocking Valve Delay, Gun Close Delay
As the dispense gun wears, it may take longer to open
and close. To account for this, the Block Valve Delay and
Gun Close Delay times can be adjusted. The Blocking
Valve Delay is the duration of time the blocking valve will
wait to close after receiving a pour command. This is to
account for the slower opening of the gun. The Gun
Close Delay is the delay after the signal is removed
before the gun closes.
Low Level Bypass On/Off
Low Level Bypass is turned on/off from the Machine
Control screen, see F
Level Bypass on or off determines whether the metering
pump motors will continue to run after the fluid level in
either or both tanks drops below the low level sensor
during an automatic mode shot.
During a pour with Low Level Bypass off, when the tank
level drops below the low level sensor and that pour
stops, the metering pump motors will stop.
During a pour with Low Level Bypass on, when the tank
level drops below the low level sensor and that pour
stops, the metering pump motors will continue to circu-
late material.
Manual mode pours will always stop when fluid level
drops below the low level sensor whether low level
bypass is on or off.
Pours will not be allowed to start when the fluid level in
either or both tanks is below the low level sensor.
NOTICE
Using low level bypass allows the pumps to continue
running when an automatic shot is performed and the
fluid level in one or both tanks goes below the low
level sensor. If your application will ever require per-
forming an automatic shot that will dispense more
than four gallons from one of the tanks, be very cau-
tious of fluid level before performing shots.
