Remote SCADA & Telemetry Systems – Flow Measurement

Facts about Flow Measurement:

Configure:

The Realflo software application provides configuration wizards to guide operator entry and facilitate the creation of flow computer configuration templates to help installers to concentrate on site-specific configurations. Realflo provides:
• Online or offline flow computer and RTU configuration.
• Local or centralised configuration.
• Automatic Audit Trail and Log Retrieval.
• Wizards to guide operator entry and facilitate the creation of flow computer configuration templates.
• User-defined events stored in RTU memory.
• XML, CSV, and CFX export of flow history data, alarms, events, and configuration.

Measure:

For natural gas measurement, Realflo Flow Computer provides:
• AGA-3 orifice plate
• AGA-8 (2017 and 1994) detailed compressibility calculations including GERG-2008 standards
• AGA-7 turbine/pulse metre flow measurement
• AGA-9 ultrasonic metering
• V-Cone
• Wafer Cone
• AGA-11 Coriolis
• Speed of sound calculated by AGA-8 (2017) using the method described in AGA-10 (2003)
• NX-19 Super compressibility
Use API 11 calculations for temperature and pressure compensation of liquid flow measurements.
Measure pure gases, including CO2, using NIST 14 and AGA-8 with GERG-2008.

Communication:

The Realflo Modbus protocol map builds upon the previous versions running on legacy SCADAPack devices such as SCADAPack 4203 GFC, SCADAPack 32, and SCADAPack 3xx Smart RTUs.

Legacy SCADA Host software can continue to access collected flow data, and real-time data on the SCADAPack x70 Smart RTU using the same protocols and mapping as previous versions of Realflo.

Using the SCADAPack x70 flow computer information can be communicated using other protocols such as DNP3. The SCADAPack 470i and SCADAPack 474i can exchange flow computer information using IoT protocols such as MQTT.