SS 4203 Gas Flow Computer

Features, Advantages and Benefits

• AGA-3, 7, 8, V-Cone and API 21.1 compliant
• Two RS232/485 selectable serial ports
• One resistance temperature detector (RTD), one turbine meter input
• One digital pulse/input/output, one analog output–DR version
• One digital pulse/input/output, two analog inputs, one digital output shared with the turbine meter input–DS version
• Modbus master/slave and Modbus EFM protocols
• Small and lightweight with flexible installation options and easy retrofit applications
• RTD connections rated non-incendive in Division 2 areas
• c(CSA)us Class I, Division 1, Groups B, C and D for use in Hazardous Locations
• c(CSA)us Class I, Division 2, Groups A, B, C and D for use in Hazardous Locations
• IECEx to Exd IIC T6
• ATEX to EEx d IIC T6
• Three-year warranty on parts and labor

Applications

With a choice of I/O configurations available, the GFC can accommodate multiple input and output devices and can be easily expanded for more complex installations. The GFC’s two discrete inputs are versatile. The first of which can use level or pulse inputs up to 10 kHz. The second input has an integral pre-amplifier for use with turbine meters. An optional analog output can be used for variable speed motor drives, control valves, emergency shutdown and more.

Alternatively, the SS 4203 GFC may be ordered with two analog inputs that can be used for measuring tubing and casing pressures in well applications.

The GFC provides two, fully functional RS-232/485 serial ports that can be used with remote I/O, radios, local displays or other serial devices. The unit provides Modbus® master/slave and EFM Modbus as its native protocols. DNP 3 is available and custom protocols can be easily implemented using the RealFLO™ C programming tools.

As a fully programmable GFC with remote configuration capabilities, the unit can be used in a wide range of process control applications including well optimization, pressure control, odorant injection and more.