Emerson Process Management ControlWave XFC - Manual (Page 15)

CI-ControlWave XFC Introduction / 1-1
Section 1
ControlWave XFC INTRODUCTION
1.1 GENERAL DESCRIPTION
Model 3820-EX - ControlWave XFC explosion proof gas flow computers have been
designed to perform as the ideal platform for direct mount oil/gas main automation,
measurement and data management in the oil and gas industry. ControlWave XFCs
measure differential pressure and static pressure and temperature for up to two runs and
compute flow for both volume and energy. In addition to operation in an unprotected
outdoor environment, the ControlWave XFC explosion proof gas flow computer provides
the following key features.
Model 3820-EX Hardware/Packaging Features:
• 32-bit ARM9 processor (LH7A400) provides exceptional performance and low power
consumption
• Wide operating temperature range: (-40 to +80°C) (-40 to 176°F)
• Two Board System Platform (CPU/Comm./Power Management and I/O Board)
• Battery backup for the real-time clock and the system’s SRAM is provided by a 3.0V,
300mA-hr lithium coin cell battery located on the CPU Module
• Very low power consumption - minimizes costs of solar panel/battery power systems
• Integral Multivariable Transducer (MVT) with “smart” performance (for DP or GP
measurement) or Gage Pressure Transducer (for GP measurement)
• Three serial communications ports (Two RS-232 & One RS-485)
• Integral 2-line LCD operates in a continuous cycle mode
• Optional I/O includes: 2 Digital Inputs (DI), 2 High Speed Counter Inputs (HSC), 4
Digital Outputs (DO), 3 Analog Inputs (AI) and 1 Analog Output (AO)
• RTD input
• Explosion Proof Class I, Division 1, Groups C & D Locations (see Appendix B) or
Nonincendive Class I, Division 2, Groups A, B, C and D Hazardous Locations (see
Appendix A)
• Readily integrates with Bristol Babcock model 2808 and 3808 MVT low power
transmitters for explosion proof installations
• Cost effective for small chart replacement or RTU/Process Controller applications
Model 3820-EX Firmware/Software Features
• Preprogrammed to meet API 21.1 requirements for a two-run metering station (with
networking via BSAP or Modbus)
• Functions as a Process Controller or Remote Terminal Unit (RTU)
• Standard Application Program supports the following Flow calculations:
• Calculates AGA3-1995/NX-19
• AGA3-1992 with selectable AGA8 Gross or AGA8 Detail
• AGA7/NX-19
• AGA7 with selectable AGA8 Gross or AGA8 Detail
• Auto Adjust AGA7/NX-19
• Auto Adjust AGA7 with selectable AGA8 Gross or AGA8 Detail
• Instromet Modbus AGA7 with selectable AGA8 Gross or AGA8 Detail
• Daniel Modbus AGA7 with selectable AGA8 Gross or AGA8 Detail
• WebBSI Web pages are preconfigured for all user operations
• Additional, standard application programs will be introduced on a continual basis
• Using our ControlWave Designer IEC 61131-3 Programming Environment, any user or
third party can modify the standard application or create a completely customized
program – full support from Bristol Babcock is available, every step of the way