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ZQ375 Checkweigher User Instructions
Checkweighing applications
Report Example:
Tolerance Hi = 0.35 lb
Tolerance Lo = 0.25 lb
Cnt of Over Wt = 2
Cnt of Under Wt = 1
Cnt of Target Wt = 3
Mean Net Wt = 10.30 lb
Max Net Wt = 12.64 lb
Min Net Wt = 0.00 lb
SD Net Wt = 5.05
CV Net Wt = 0.49 PCT
Cnt of Tot Wt = 6
If autoprint is enabled or the
key is pressed a valid transaction occurs. Valid
transactions are counted as one entry in a packrun.
To end a packrun before the configured quantity is met, press and hold
and the
valid transactions are totaled and standard deviation is performed.
If enabled, the standard deviation report is printed automatically upon completion of the
packrun.
3.5.5 X-Bar/R Program
The X-bar/R program is designed to weigh process samples, establish the average
weight, calculate the range between high and low weights, and the trend of deviation.
If the X-bar/R feature is enabled, the ZQ375 will keep a queue of the average weights
of the last eight sample sets. This queue of averages is used to print trend information
on the statistical reports.
The Report Printout for the X-Bar/R program can be customized to present statistical
data of your choosing. This information is found in the Service manual.
Trend Message Meaning
1 of 1
The last average in the queue has an error greater than 3x the limit
2 of 3
Two of the last three averages in the queue have an error greater that the limit.
4 of 5
Four of the last five averages have an error greater than the limit.
8 of 8
Eight of eight averages are on the same side of the target weight.
Summary of Contents for ZQ375 Checkweigher
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