AEC OS Series Gravimetric Batch Blenders - Manual (Page 53)

Page 52 of 118
5-5 Blender Calibration
5-5-1 Standard Calibration (Recommended on a regular
basis to ensure inventory accuracy)
1. Power up blender.
2. From the initial Start screen press “5” and key-in password
<5><4><1><3> & <ENTER>.
3. Press <1> for calibration.
4. Press <1> for Scale Calibration.
5. Set zero weight and press start. (Make sure there is no material in
the weigh hopper.)
6. Set the weight. (Put the weight on the weigh hopper.)
7. Enter calibration weight. (Enter the value stamped on the weight.)
8. ***If the message “+/- 10% of Factory press <EOC>” appears,
press the end of the cycle key. Message: “Calibration constants
saved” should be displayed.
9. Press the backup key until you reach the calibration screen. Now
remove the weight.
5-5-2 Additional settings that usually do not have to be
changed:
1. Press <2> for mixer options.
2. Press <1> or <2> to start and stop mixer manually.
3. Enter a “Mixer On” time by pressing <3>, this is the amount of time
the mixer will mix. Remember that if the mix time is too long you
may get material separation.
4. Press <4> to set “Re-mix” off time. This allows the mixer to come on
between batches if the blender cycle time is very slow, i.e. if you
want the mixer to come on every minute, set this to 60 seconds. If
you don’t want to use this function, set the time to “0”.
5. Press <Backup>. The screen should say “Intermittent.” If you want
the mixer to run all the time, press <Enter>.
6. Backup to <1> calibration screen and press <4> for Dump Valve
operation.
7. Press <1> or <2> to open and close valve manually.
8. Press <3> to set your dump time. (Set time so that all the material
in the weigh hopper has a chance to be evacuated.)
9. Press <4> for optional dump delay. This allows the mixer to start
before the batch is dumped. Set to <0> if you don’t want to use it.
10. Press <Backup>. The screen should read “Smart Dump Disabled.”
If you want to enable smart dump, press <Enter>. This feature
overrides the Dump Time and automatically closes the dump valve
when the weigh hopper is empty.