Conair GB User Manual page 88

This test is to help you determine if the load cells are working
correctly, and if the weigh bin and weigh bin hanger are moving freely
and registering weight correctly.
Have a pad and pencil ready to write down the weight readings that
appear on the display, both before and after each dispense.
prefer, you can use a printer to record all test data.
printer flag (*54) set to ON.
Be in the PROGRAM mode.
1. Start with an empty weigh bin.
2. Dispense a very small amount, using the TIMED DISPENSE function:
Record the weight display.
Press:
Wait for dispense then record the new weight.
Wait for test to finish, about 10 seconds.
the bin will automatically empty.
3. Now, manually add enough pellets to bring bin weight up to the
approximate full batch weight.
air solenoid operator pin for NATURAL.
be close to a normal full batch weight, like 2000 or 4000 grams.
Exact weight does not matter.
full batch weight on the load cells.
4. Repeat step 2, recording the weight readings.
5. Do this entire test 3 more times.
From the weight readings, calculate the weight of each dispense
from each test.
RESULTS TO EXPECT:
In each test, the first timed dispense, when the bin is empty, should
be very close or equal to the second dispense, when the bin is full.
Results from all 4 tests should be very similar.
If the second dispense is always less then the first, the load cells
are suspect. The enclosures may be full of pellets.
interference is also possible.
pattern, this is most likely caused by weigh bin interference.
Bin interference is usually visible with close inspection.
LOAD CELL - WEIGH BIN TEST
To verify correct operation
(*22222).
TIME, NAT, 040
If all dispenses vary widely with no
Page 89
At the end of this test
This is OK.
Do this by pressing on the small
Drop in enough pellets to
We just want to place approximate
If you
Have the
Weigh bin
Weigh