Hardy HI 6600 Series Modular Sensor System - Manual (Page 89)

HI 6600 Series Modular Sensor System User Guide
Page | 89
Further investigation to isolate system problems requires the use of
hand tools and multi-meters or the INTEGRATEDTECHNICIAN
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 6600 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.
mV DC voltage signals are between 0-25 millivolts. Overloads and negative millivolt readings are not shown as actual readings
but 25.5 mVfor over voltage and 0.0 for negative voltage. You will need to use a multimeter with a 200 or 300mVDC range to
view the out of range voltages.
RTZ (Return to Zero) Test
This check is to see if the scale returns to a zero reading condition when it is empty. Run this test only when the scale is empty.
When the scale is calibrated at the ZERO or Reference zero, there is a period during which the WEIGHT readings are
collected. After a valid calibration has been completed, the test compares the original weight reading with collected and
current readings. If the difference is more than the combined Motion and the Zero Tolerance parameters the test will fail.
IT Test
If your system has an Integrated Technician Summing Junction box, the IT test can identify individual load cell problems up to a
maximum of four load cell selections. The dwell displays are live readings and only available if you have an IT summing
junction card, with a maximum of one JBox and 4 channels. From the front display, select Jbox1.
From the HI 6610 WPM Diagnostics menu, select Integrated Technician.
Sensor Number Indicates which sensor is under test. Using the up or down arrow, select the number of load cells to test.