Chapter 7: Troubleshooting
General
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7 Troubleshooting
General
If operational difficulties are encountered, obtain as much information
about the problem as possible. Is the problem constant or intermittent?
Malfunctions can be caused by mechanical or electrical influences so be
patient and use sound logic when troubleshooting. When troubleshooting
a 2888 Deckmate scale, examine the physical location of the scale,
checking for the presence of the following: water, corrosive materials,
unlevel floors, high vibrations, or air currents, physical damage to the
scale platform or frame. Also check the instrument cable for damage and
all connections for any loose/incorrect wiring.
CAUTION
BEFORE CONNECTING/DISCONNECTING ANY INTERNAL
ELECTRONIC COMPONENTS OR INTERCONNECTING
WIRING BETWEEN ELECTRONIC EQUIPMENT ALWAYS
REMOVE POWER AND WAIT AT LEAST THIRTY (30)
SECONDS BEFORE ANY CONNECTIONS OR
DISCONNECTIONS ARE MADE. FAILURE TO OBSERVE
THESE PRECAUTIONS COULD RESULT IN DAMAGE TO
OR DESTRUCTION OF THE EQUIPMENT OR BODILY
HARM.
Isolate the Problem
First, determine if the problem is in the scale platform or the digital
indicator. After removing power from the system, disconnect the digital
indicator from the 2888 Deckmate LP scale assembly and connect a load
cell simulator to the indicator (analog simulator available from Mettler
Toledo). Reapply power. If the problem is still present, consult the digital
indicator manual for further troubleshooting assistance.
If the problem is NOT present with the load cell simulator attached to the
indicator, remove power, disconnect the simulator and reconnect the
2888 platform. If the problem reoccurs, further scale platform
troubleshooting is required.
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