Hardy Process Solutions HI 2160RC PLUS, Operation And Installation Manual

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Chapter 9 - Torubleshooting and Repair
9-1
CHAPTER 9 - TROUBLESHOOTING AND REPAIR
About Chapter 9 Chapter 9 consists of all the procedures for troubleshooting and repair-
ing the HI 2160RC
PLUS
rate controller. It lists the cause and remedy for
each of the troubles you may encounter. Adequate equipment is
required to make repairs and a thorough understanding of the configu-
ration, calibration, setup and operation is essential to diagnose
improper operation. To make sure the HI 2160RC
PLUS
rate controller is
repaired correctly, all maintenance personnel should be familiar with
the troubleshooting information before attempting any repairs.
Disassembly and
Reassembly Notes &
Cautions
• Disconnect the power cord before disassembling.
• Make sure that any disassembly is done in a clean, well ventilated,
properly controlled static environment.
• Place all small fasteners, connectors and electrical parts in closed
containers so as not to lose parts during reassembly.
• Read all the disassembly instructions before starting disassembly.
Be sure that you are familiar with all the procedures. If any of the
instructions for disassembly are unclear, contact:
Hardy Process
Solutions
Service Center for additional information and assis-
tance .
• Make sure that the proper tools are used when disassembling, reas-
sembling or installing the HI 2160RC
PLUS or options.
• Check all external connectors first to be sure they are securely fas-
tened before disassembling the controllers.
• 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, Flat Washer,
Lock Washers, Spacers, Etc.) back to the original point of removal.
• Always replace broken or damaged parts immediately!
• 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 approve ESD wrist straps and anti-static pads
when working with the printed circuit boards.
• Always store printed circuit boards in approved ESD bags.
• Always follow proper safety procedures when working on or
around the HI 2160RC PLUS .
• No special tools are required to repair the controller.
• Always check for loose wiring, connections or simple problems
that might cause a malfunction first.
• Recommended thread lock compound: LocTite
®
290