Owner's manual

A-1
APPENDIX A: TROUBLESHOOTING AND PERIODIC MAINTAINANCE
A.1 Troubleshooting Guide
Problem
Possible Problem and Corrective Action
The system does not
operate – No Display
• Power disconnected or bad power supply: Check outlet
first. Test the AC adapter or power supply.
• Indicator fuse blown: Replace fuse, check for cause.
• Interface Cable cut or disconnected: Replace or Properly
repair cable
• Interface Cable wiring problem: Check connections
inside junction box and at indicator.
Display stays at Zero – Will
not weigh anything
• Item may be too light for scale resolution.
• Interface Cable cut or disconnected: Replace or Properly
repair cable
• Interface Cable wiring problem: Check connections
inside junction box and at indicator.
• Load cell connections faulty: Check load cell connections
inside junction box.
• Debris under the scale platform: Check and clean debris
from under the platform (Periodic Maintenance).
• Indicator faulty. Service or replace indicator.
Displays erratic weights
• Interface Cable cut or disconnected: Replace or Properly
repair cable
• Interface Cable wiring problem: Check connections
inside junction box and at indicator.
• Platform not level: Level the scale by properly adjusting
the leveling feet.
• Load cell connections faulty: Check load cell connections
inside junction box.
• Load cell or load cell cable damage: Inspect load cell
cables. Test and replace Loadcell if needed.
• Bad power supply: Check outlet first. Test the AC
adapter or power supply.
• Debris under the scale platform: Check and clean debris
from under the platform (Periodic Maintenance).
• Indicator faulty. Use simulator to test for stability. Service
or replace indicator.
Consistently high or low
weights
• Indicator not properly adjusted to zero: Zero the indicator
according to the indicator manual.
• Platform binding: Provide adequate clearance for free
platform movement. Make sure a ramp(s) is not touching
the scale. Remove any debris under and around the
scale platform.
• Indicator not calibrated properly: Calibrate the system
according to the indicator manual.
• Load cell(s) faulty: Test and replace load cells if
necessary.