WeighTech MicroWeigh - Machine Operation and Cycle Control; Startup, Shutdown, and Cleanout Modes; Target Weight and Tolerancing Settings; Dump Cycle Operation Sequence

7 Machine Operation
7.1 Startup
Ensure that all hoppers are empty and that all moving parts are in good working
condition. Power up the machine and indicator. No air cylinders should move when the
indicator is powered on.
Touch the “Menu” key, scroll until “Production” is visible, and touch the “Enter”
key. You can now scroll between the production options, so scroll until “Cycle On” is
visible, and touch “Enter”. The display will show “Dump Cycle On”, pause for a second
or so, and return to the normal weight display. The machine will now begin operation
(buffer hopper gate will open and the weigh hopper gate will close). You may also
notice that the left side of the display now shows “On”. This indicates that the machine
is in the automatic weighing cycle. (If the machine is equipped with a washdown or idle
button, you can pull the switch out to start the automatic operating cycle.)
7.2 Shutdown
From the normal weight display, touch the “Menu” key. Scroll up or down until you
reach the “Production” menu. Touch the “Enter” key, and again scroll until “Cycle Off”
is visible on the display. Touch the “Enter” key. The display will show “Dump Cycle
Off” for a few seconds, return to the normal weight display, and go into the off mode.
In off mode, all hopper gates will close to prevent product flowthrough and the machine
will not cycle. The left side of the display should show “Off” in this mode.
7.3 Cleanout
Select “Cycle Idle” from the “Production” menu to enter idle mode. In idle mode, the
hopper gates will all lock in the open position to allow cleaning. The indicator display
will show “Idle” on the left side when the machine is in this mode. (If the machine
is equipped with a washdown or idle button, you can push the switch in to place the
machine in idle mode.)
7.4 Target Weight
The target weight can be changed while the machine is in any operating mode, even
while running production. Touch the “Menu” key, scroll until “Production” is shown on
the display, touch “Enter”, and scroll until “Target” is visible. Once the target weight is
visible on the display, touch the “Enter” key to modify it. Use the up or down arrows to
adjust each digit in turn and press either “Enter” to set the new target weight, or “Cancel”
to leave the target weight setting unchanged.
7.5 Tolerancing
If the tolerance option is enabled, the hopper will not dump unless the hopper weight is
in the acceptable weight range. The acceptable weight range is set by the low and high
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