Nicol Scales & Measurement RoughDeck, Руководство по установке

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Service Information 9
4.0 Service Information
4.1 Troubleshooting Guide
Table 4-1. Troubleshooting
Issue Possible Cause Solution
System does not operate -
no display
Power disconnected. Check and reconnect.
Indicator fuse blown. Replace fuse. Check for cause.
Interface cable cut or disconnected. Repair.
Signal leads incorrectly installed at indicator. Install according to indicator installation manual
Display stays at zero
Indicator faulty. Service indicator
Load cell connections faulty. Check cable connections in junction box and at
indicator
Erratic weights
Vibration near scale. Remove source of vibration or move scale.
Platform not level to within 1/4 inch Level scale by adjusting feet or shimming if
necessary.
Load cell or cable water damage Replace
Debris under load cells or platform Clean
Indicator faulty Use simulator to test indicator for stability.
Service indicator.
Consistently high or low
weights
Indicator not properly adjusted to zero: Zero the indicator according to indicator
manual.
Platform binding. Obtain adequate clearance for free platform
movement.
Indicator not calibrated. Calibrate according to indicator manual and
Section 3.3 on page 8
Load cells faulty. Test and replace load cells if necessary.
Feet touching deck underside. Adjust feet downward to provide clearance.
4.2 Periodic Maintenance
The space between the platform side and pit frame, and the surface beneath the platform must be periodically
cleaned to prevent debris build up. More frequent cleaning of these areas is necessary with scales mounted in pits.
CAUTION
Do not attempt to use scales with load cells that are not hermetically sealed in washdown applications.
Water damage is a common cause of failure in non-hermetically-sealed load cells. Use care with high
pressure steam wash downs for hermetically-sealed load cells. The steam may not damage the load cells,
but the elevated temperatures may cause incorrect readings until the unit cools to room temperature.