HI 2160RC
PLUS
MANUAL
8-30
Test Procedures
Sigma Test -
Definition
The 2 Sigma Test feature is used to measure the performance of the
feeder system. The 2 Sigma Test can be run on demand during all feed
cycles. The test measures the decreasing weight on a scale by sampling
a user selected number of samples over a user selected time period. The
HI 2160RC
PLUS
stores the amount of weight that left the scale for each
time interval and time and date stamps the sample. The mean value of
the total selected readings is calculated. The standard deviation is cal-
culated and multiplied by two (2) then divided by the mean value to
determine the 2 sigma accuracy of the feeder system under test. If the
feed cycle is interrupted in any way (system malfunction, operator
pause, REC mode or refill mode) an invalid test alarm is displayed and
the test is aborted. Once the test is complete the results are kept in the 2
Sigma Data memory and can be displayed by selecting the 2 Sigma
Data sub-menu in the Test Menu. The 2 Sigma accuracy test of a feeder
is the repeatability of the feed rate expressed as a percentage of the
Mean feed rate.
•
You can perform the 2 Sigma Test at any time when in Continuous
mode. When in Batch mode it is recommended that you choose the
parameters so that the test can be completed by the end of the batch
process. Otherwise you will not get valid test data. It is recom-
mended that the parameters be selected so that no interruptions
occur during the test.
Step 1. Press the 2/Test button. (See Fig. 8-29) The Test Menu
Appears. (See Fig. 8-30)
Set Rate 1 .520 L/M
OP 65.3% Act 1. 521
Current Wei ght in
ON Scal e 8 7.56 6 LB
FIG. 8-29 SELECTING TEST MENU
Содержание HI 2160RC PLUS
Страница 1: ...HI 2160RCPLUS Rate Controller Operation and Installation Manual ...
Страница 23: ...HI 2160RCPLUS MANUAL 2 6 ...
Страница 32: ...Chapter 3 Installation 3 9 FIG 3 12 FRONT PANEL WITH BRACKETS FROM FACTORY FIG 3 13 BEZEL INSTALLATION DIAGRAM ...
Страница 46: ...Chapter 3 Installation 3 23 Interconnect Wiring Diagram See Fig 3 33 FIG 3 33 INTERCONNECT WIRING DIAGRAM ...
Страница 48: ...Chapter 3 Installation 3 25 FIG 3 35 SECURE MEMORY MODULE FIG 3 36 INSTALLING REMOVING SECURE MEMORY MODULE ...
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Страница 197: ...1 2 3 4 5 6 V V I I VOLTAGE CURRENT HI 2160RCPLUS MANUAL 9 10 FIG 9 5 CONNECTOR WIRING DIAGRAM FOR CONTROL OUTPUT CARD ...
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Страница 219: ...Data Worksheets WKSHT 6 ...