Instruction manual

ControlWave Gas Flow Computer (GFC Plus) Instruction Manual (CI-ControlWave GFC Plus)
Revised Feb-2013 Service & Troubleshooting 5-1
Chapter 5 – Service and Troubleshooting
This chapter provides general diagnostic and test information for the
ControlWave GFC Plus as well as some common maintenance
procedures.
In This Chapter
5.1 Upgrading Firmware ........................................................................ 5-2
5.2 Removing or Replacing Components .............................................. 5-6
5.2.1 Accessing Modules for Testing ............................................ 5-6
5.2.2 Removing/Replacing the CPU/System Controller Board and the
Process I/O Board .............................................................. 5-6

5.2.3 Removing/Replacing the Primary Battery System ............... 5-7
5.2.4 Removing/Replacing the Backup Battery ............................ 5-8
5.2.5 Enabling / Disabling the Backup Battery .............................. 5-9
5.2.6 Removing/Replacing the Case-Mounted Radio or Modem . 5-9
5.2.7 Removing/Replacing the MVT or GPT Transducer ........... 5-10
5.3 General Troubleshooting Procedures ........................................... 5-10
5.3.1 Common Communication Configuration Problems ............ 5-10
5.3.2 Checking LEDs ................................................................... 5-11
5.3.3 Checking LCD Status Codes ............................................. 5-11
5.3.4 Wiring/Signal Checks ......................................................... 5-12
5.4 WINDIAG Diagnostic Utility ........................................................... 5-13
5.4.1 Available Diagnostics ......................................................... 5-14
5.5 Core Updump ................................................................................ 5-17
5.6 Calibration Checks ......................................................................... 5-18
Equipment
You need the following equipment to perform the procedures described
in this chapter:
To run diagnostics software:
 PC with WINDIAG software, and either OpenBSI LocalView,
NetView, or TechView for communications
 Null modem interface cable
 Loop-back plug (See Figure 5-6 and Figure 5-7.)
To perform firmware upgrades:
 Null modem interface cable
 PC with the following software:
o OpenBSI LocalView
o OpenBSI System Firmware Downloader and either NetView,
LocalView, or TechView for communications.
o HyperTerminal (included in Windows®)
To replace the SRAM backup battery:
 Tweezers or needle-nose pliers
Miscellaneous other equipment:
 Needle-nose pliers
 Screw drivers