Conair WSB - Manual (Page 82)

NORMAL OPERATING SEQUENCE
This section tells you how the system is supposed to work. If your
system is not operating correctly, this description may help you spot
exactly where the system is failing, providing a clue to the problem.
Turn POWER ON:
The following displays occur for 1 second each: Program
version date (V=21031A), the check sum number (CKS XXXX), ROM
check (ROM OK ), RAM size, (RAM = 8K), Model number
(MODEL220), display of ( 0.0), actual weight in the bin
is displayed last. It should be close to 0.0, plus or minus
several grams.
BEGIN operation:
The unit will begin to operate if both switches on the left
side are UP in the CONTINUE position and the SENSOR in the
mix chamber is UNCOVERED. The sensor must be plugged into
the right side of the controller. If it is not, this has the
same effect as the sensor being covered; the unit will not
run. If the sensor LED (on the sensor) is on, the sensor
thinks it is covered. If it is sensing incorrectly, adjust
the sensitivity. See ADJUSTMENTS.
If the WEIGH BIN DUMP Flap opens and closes repeatedly:
If initial empty bin TARE weight is 100 grams or more, the
weigh bin dump valve will operate in an attempt to empty the
bin and bring the starting weight closer to zero. If the bin
is empty but the weight reading is greater than 100 grams
then something is wrong. See TESTING the LOAD CELLS and LOAD
CELL CALIBRATION.
If the ALARM flashes:
If the initial TARE weight is below -50 grams the Alarm will
flash and the unit will not operate. go to TESTING of LOAD
CELLS and LOAD CELL CALIBRATION.
The DISPENSE sequence begins:
If initial tare weight is within limits, between -50 and
+100, the sequence will begin.
DISPLAY during dispenses:
During all dispenses, the letter R, N, C, or A will be
displayed indicating which component is being dispensed. The
INITIAL display is the tare weight of the bin. This will not
change during the dispense. Tree seconds after each
dispense, the new total weight of the material in the bin is
updated and displayed.
REGRIND first:
If REGRIND has been requested the REGRIND dispense will occur
first. The letter "R" will appear in the display. After
this dispense an exact weight is taken to determine the space
remaining in the weigh bin for the remaining dispenses. The
weight of REGRIND dispensed will appear in the display 3
seconds AFTER the dispense has ended.
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