18 XFC G4 2103335 Rev AB
3.2.5 Solar Panel
The flow computer
can be configured for a 10-Watt, 20-Watt or 30-Watt solar panel. The panel is designed to be mounted on a
2-inch extension pipe above the flow computer, on top of or to the side of a meter house.
3.2.6 Resistive Temperature Detector (RTD)
An optional 100Ω platinum RTD measures the real-time flowing temperature of the gas. The standard RTD is provided with a
10-foot cable. Other lengths of cable are available upon request.
3.2.7 Additional Features
Additional features of the Totalflow system that enhance its flexibility include:
— Programmable bi-level security system prevents unauthorized communication and configuration of the flow computer.
— Internal crystal-controlled clock provides a highly stable time base for the system.
— Optional battery packs extend operation for longer periods without power.
— Three available charging sources:
– External solar panel (standard)
– External ac power
– External 24/12Vdc power
— LCD-programmable to allow monitoring of operations (for example, displays flow rate, volumes, etc.).
— Rugged, aluminum, powder-coated NEMA 4X enclosure. Lockable to prevent internal access.
— Optional ability to allow rapid data collection over several communication links.
— Additional I/O for valve control, pressure, level monitoring, remote communication, etc.
— Optional keypad.
3.3 Standard Enclosures
The standard enclosure consists of a hinged-door box in varying sizes for the XFC
G4
devices (see Figure 1 through Figure 6).
The door provides a watertight, corrosion-resistant seal between the outside elements and the flow computer components. It is
designed to meet Class I, Division 2, Groups C and D and is NEMA 4X rated. It is designed for mounting in harsh environments
(cold, hot, wet and salty). Opening the door latches allows access to electronics, battery, radio, XIMV and modular components.
This door may be locked for security purposes.
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