Filtec FT-50c - Setting the Overfill Gamma Threshold

FT-50 Fill Level Inspector Service Manual
4-20
10. To complete the configuration you must follow the appropriate
procedure based on the type of fill level inspection you will be
performing:
• If you will be performing overfill inspection proceed to
Setting the Overfill Gamma Threshold.
• If you will be performing underfill inspection proceed to
Setting the Underfill Gamma Threshold.
Setting the Overfill Gamma Threshold
1. Place a sample production container that is overfilled by
approximately 3mm to 5mm on the conveyor far enough
upstream of the FT-50 so that it does not slip on the chain and
is positioned correctly as it passes through the inspection
tunnel.
2. Record the Gamma Counts value that appears in the Gamma
Threshold display.
3. Repeat the previous two steps four more times and then
average the value to get the average bad count (BC).
4. Use the following equation to determine the Overfill Gamma
Threshold.
5. Press Key 1 until you reach GAMMA THRESHOLD and use
the Arrow Key to enter the Overfill Gamma Threshold Value
(T) you calculated in step 4.
6. If you are finished configuring the FT-50, press Key 5 until you
reach SYSTEM DISPLAY and then press the Arrow Key to
return to the Operate Mode.
where:
GC = Average Good Counts (step 9).
BC = Average Bad Counts (step 3).
T = Overfill Gamma Threshold.
abcde++++()
5
--------------------------------------------BC=
GC BC+()
2
----------------------------T=
Industrial Dynamics Company, Ltd. Document 40255-0600