150
Chapter
9
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PASS/FAIL and Stability Test
This test computes the variation of the A/D counts. The results show the variance and
indicate pass or fail. The test is valid to help break down the problem into smaller divisions.
Unstable test results can be caused by an internal A/D processor fault, grounding, power
connection, EMI/RFI above specified CE limits, or noisy load cell input.
These numbers reflect a weight change at the smallest measurement of the filter setting, the
internal analog-to-digital converter computer register.
WAVERSAVER TEST
These numbers also reflect weight change at the smallest measurement, the internal analog-
to-digital converter computer register. The internal RAW A to D counts and filtered A to
D counts are displayed for a comparison. A FAIL on the RAW counts and pass on the
filtered counts indicates the WAVERSAVER filtering is necessary and functioning
properly.- except that this reading is averaged using the WAVERSAVER and AVERAGES
setting parameter from the Processor’s configuration. Using the maximum number of
internal averages and the 10ms update speed equals a maximum delay of 2.55 seconds
Weight and Voltage ALL
This test section looks at the readings from ALL the load cells to test overall system
performance and signal voltage readings. This test works for most load cell types.
Further investigation to
isolate system problems
requires the use of hand
tools and multi-meters or
the INTEGRATED
TECHNICIAN Junction
or Summing Box and
using the IT
©
Test section.
NOTE
INTEGRATED TECHNICIAN
®
(IT) is a registered trademark of Hardy Process Solutions.
Weight
This displays the amount of force seen by all load cells installed in the summing
junction box. Further investigation to isolate system problems will require the use of hand
tools and Multi-meters or the Integrated Summing Junction box and using the IT test
section.
Millivolt/Volt equals the output from a load cell per each volt of excitation. The HI 6500
series reads the load cell output in mV/V which is a higher resolution (4 decimal places)
reading than a mV reading, thereby providing more sensitivity to enable you to
troubleshoot the condition of the load cell in question under certain conditions. . Load Cells
are rated in Millivolts/Volts.
mV/V
are DC voltage signals between 0-5.0000 mV/V.
Содержание HI 6500 Series
Страница 10: ...viii Contents ...
Страница 20: ...10 Chapter 2 ...
Страница 72: ...62 Chapter 4 ...
Страница 96: ...86 Chapter 5 Profibus DP Commands and Parameters ...
Страница 97: ...Instrument Configuration 87 Serial Option Termination ...
Страница 126: ...116 Chapter 5 ...
Страница 156: ...146 Chapter 8 ...
Страница 163: ...Troubleshooting 153 General Troubleshooting Flow Chart Index ...
Страница 164: ...154 Chapter 9 A Guideline Instability Electrical and Mechanical review ...
Страница 165: ...Troubleshooting 155 A1 Checking for Unstable Components in a Weighing System ...
Страница 166: ...156 Chapter 9 B Guidelines for Electrical Mechanical or Configuration Issues ...
Страница 167: ...Troubleshooting 157 B1 Guidelines to Verify Electrical Installation ...
Страница 168: ...158 Chapter 9 B2 Guidelines to Verify Mechanical Installation ...
Страница 169: ...Troubleshooting 159 B3 Guidelines to Verify Configuration Filter Settings to Improve Stability ...
Страница 170: ...160 Chapter 9 C Integrated Technician and Stability Test Overview ...
Страница 171: ...Troubleshooting 161 E Testing for Non Return to Zero System with IT Summing Card ...
Страница 173: ...Troubleshooting 163 G Calibration Errors When Performing the Calibration ...
Страница 174: ...164 Chapter 9 H Mechanical Installation ...
Страница 175: ...Troubleshooting 165 J Electrical Inspection ...
Страница 176: ...166 Chapter 9 K Installation Check Points ...
Страница 177: ...Troubleshooting 167 M Weight Processor s Front Display is Blank or Locked ...
Страница 178: ...168 Chapter 9 N Analog Out HI 6510 Only ...
Страница 194: ...184 Appendix A Figure D1 Assembling the Swivel Mount Enclosure on the instrument pedestal ...
Страница 195: ...Installation of Swivel Mount Enclosures 185 Figure D2 Assembling the Swivel Mount Enclosure on a Table ...
Страница 196: ...186 Appendix A Dimensions ...
Страница 200: ...4 HI 6500 Series USER GUIDE Index ...
Страница 201: ......