138 XFC G4 2103335 Rev AB
7 Troubleshooting
As an aid to troubleshooting the flow computer, this chapter will provide troubleshooting guidelines for the various subsystems.
This chapter contains a troubleshooting flowchart (Figure 94:). As you follow the logic in this flowchart, you will be directed to
specific test instructions that are found in this chapter or you may be directed to the Power Troubleshooting Flowchart (Figure
97:) or possibly the Communication Troubleshooting Flowchart (Figure 102:). In addition to these flowcharts, this chapter
contains step by step procedures for troubleshooting a flow computer with or without an installed radio communication unit.
7.1.1 Troubleshooting Support
If troubleshooting instructions do not lead to a resolution and assistance is required, the user can contact the Totalflow Service
Department.
7.1.2 Maintenance support
If installation, calibration and maintenance assistance is required, user can contact the Totalflow Service Department.
— USA: (800) 442-3097
— International: 001-918-338-4888
7.1.3 Returning Part(s) for Repair
If a component is to be returned to Totalflow for repair, securely wrap the product in protective anti-static packaging. Before
returning a component, refer to the Contact Us section for a Return for Authorization Number (RA). Affix this number to the
outside of return package.
Parts shipments must be prepaid by customer. Any part, not covered by original SYSTEM WARRANTY, will be shipped to
customer, F.O.B.
IMPORTANT NOTE: Do not return equipment to ABB without prior written consent. Returns are subject to terms
and conditions
7.1.4 Visual Alarm Codes
As noted in Chapter 1, the units LCD annunciator area shows many different status indicators related to device operations. This
section contains info on those codes that reflect errors or provide information useful in troubleshooting. Alarm codes indicate
that an operational problem exists.
The user is informed of operational problems and operational limit violations by observing the alarm codes on the right side of
the LCD display.
7.1.5 SLEEP Mode
Totalflow units are designed to go into a low power mode, SLEEP, when an insufficient supply voltage is present for a period of
time. At issue here is locating the reason for the SLEEP alarm, simply waking up the unit will not suffice; therefore, issues
relating to the system’s power supply should be investigated.
7.1.6 Solar Panel
When a solar panel is attached to the flow computer to provide a charging source for the battery, cleanliness and positioning
play an important role, as do proper electrical and cabling techniques, see section 4.10, Solar Panel Installation, on page 71
Troubleshooting the communications for this unit requires that both pieces of equipment be tested: the XFC
G4
Comm ports and
the Communication device, see section 7.4.1, Communications Overview, on page 154.
Other communication troubleshooting information is shared in the following categories:
— RS-232 Communications
— RS485 Communications
— RS422 Communications
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