AEC OS Series Gravimetric Batch Blenders - Manual (Page 62)

Page 61 of 118
5-8-6 Re-Mix Timer
In some applications, the OS/OA blender will require the use of the re-
mix timer. Some materials tend to separate if they are mixed too long.
This is possible when a processing machine is running at a rate
significantly below the capacity of the blender.
With external vibration, the heavier pellets will tend to flow to the bottom
of the mix chamber before the lighter material. This will occur even
though the mixer is in a static mode. By re-mixing occasionally, this
situation will be prevented.
The re-mix timer will start another mixing cycle if the blender has been
idling long enough for the re-mix timer to time out. The re-mix timer may
be set from 1 to 999 seconds. Setting the re-mix timer to zero will disable
this function.
If the re-mix timer is disabled, the controller will run only a single, timed
mix cycle after each dump of the weigh hopper.
To view and change the value of the re-mix timer, refer to the diagnostic
menu. Then select item #2 (Mixer Menu) and then select item #4 (Re-
Mix Time). The re-mix timer default value is factory preset at zero.
5-8-7 Mixer Options
Press the “Backup” key when in mixer options to set the following
options:
Intermittent Mixing Option This mode of operation turns the mixer on
only during dumping and during the re-mix time set into the control to jog
the mixer during high level mixer operation.
Continuous Mixing Option This mode of operation turns the mixer on
after initial startup and will continue to run continuously, unless the remix
time is set to jog the mixer during high level mixer operation. This option
is used for sticky materials that tend to bridge and block off the mixer
discharge to the processing machine.