Disassembly and reassembly notes and cautions -1 – Hardy HI 2151/30WC Single-Scale Controller User Manual
Page 121
Chapter 8 - Troubleshooting
8-1
CHAPTER 8 - TROUBLESHOOTING PROCEDURES
Chapter Eight covers the procedures for troubleshooting the electrical,
mechanical and firmware elements of the HI 2151/30WC Weight Con-
troller in the event of a malfunction. A flow chart provides a road map
for troubleshooting a weight control system, including load cells,
weight controller and cabling. Chapter Eight also provides instructions
for using Hardy's INTEGRATED TECHNICIAN™ software utility to
isolate problems that may occur in a weight system.
Disassembly and
Reassembly Notes
and Cautions
•
Always disconnect the power cord before disassembling.
•
Make sure that any disassembly is done in a clean, well ventilated,
properly controlled static environment.
•
Always make sure that the assemblies and sub-assemblies are well
supported and insulated when doing any repairs on the HI 2151/
30WC Weight Controller.
•
Place small fasteners, connectors and electrical parts in closed con-
tainers so as not to lose parts during reassembly.
•
Read all the disassembly instructions before any disassembly
begins. Be sure that you are familiar with the procedures. If any of
the instructions for disassembly are unclear, contact Hardy Instru-
ments, Customer Support Department for additional information
and assistance.
•
Do not disconnect any electrical plug, connector or terminal unless
an identification tag is present or one is attached. Always note
where the connector or plug was attached to the electrical compo-
nent or wiring harness.
•
Always install complete hardware groups (Screws, Washers, Lock
Washers, Spacers, Etc.) back to the original point of removal.
•
Always replace broken or damaged modules or hardware immedi-
ately!
•
Always check to be sure that no loose parts are sitting on printed
circuit boards or electrical connectors or wires when disassembling
or reassembling.
•
Always protect printed circuit boards from electrostatic discharge
(ESD). Always use approved ESD wrist straps and anti-static pads
when working on the PROFIBUS Interface Card.
•
Always perform a final inspection after completing any reassembly
to be sure that all fasteners are tight, all connectors are secure and
there are no loose parts on any of the printed circuit boards in the
HI 2151/30WC.
•
Always follow proper safety procedures when working on or
around the HI 2151/30WC Weight Controller.