| Related information:
Summing Junction Box
Introduction
Summing Junction Box
Installation Guide
-Controls
-Mounting
-Wiring
-Leveling
Summing Junction Box
Calibration
Summing Junction Box
Troubleshooting Guide
Summing
Junction Box
Features &
Specifications |
Summing Junction Box
The Summing Junction Box aids in system troubleshooting as it allows
each load cell to be isolated from the summed output to the indicator. A suspect load cell
can be monitored on the indicator by turning OFF all but the suspect cell. By
comparison with shunt numbers obtained during the last calibration for each load cell, a
faulty load cell can quickly be located in the system.
Summing Junction Box Spare Load Cell
(Symmetrical Weigh Systems Only)
A defective load cell may be isolated from a scale system by
switching it OFF. Unless the load cell is loading the excitation supply excessively,
the scale may be operated without significant loss of accuracy until repairs can be
performed. This feature is only valid in systems where each load cell equally supports the
"live load" and the system is NOT employed as a LEGAL FOR TRADE system.
Operation of a system with less than two operating systems is not recommended.
| IF YOUR PROBLEM IS: |
THEN CHECK FOR: |
| Will not zero or stabilize |
*a loose or bad connection |
|
* connections may be reversed |
|
*indicator and/or load cell may have a defect or be incompatible |
|
| Will not repeat measurement when trimming |
* Friction in scale structure |
|
*Scale supports may not be level |
|
| Output is too low |
*a loose or bad connection |
|
*indicator and/or load cell may have a defect or be incompatible |
|
| Unstable or inconsistent reading |
*a loose or bad connection |
|
*Indicator and/or load cell problem
(Use S1-S4 to isolate problem) |
|
* Friction in scale structure |
|
*Scale supports not level |
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