FloBoss 107 Instruction Manual
1-24
General Information
Revised June-2017
input, which is sampled and linearized once per second, comes from an
RTD probe.
AGA3 calculations conform to the methods described in American Gas
Association Report No. 3,
Orifice Metering of Natural Gas and Other
Related Hydrocarbon Fluids
. Based on the second and third editions, the
calculation method is 1992 AGA3.
The primary inputs used for AGA7 flow measurement are pulse input (PI)
counts, static pressure, and temperature. The pulse input counts are
acquired from a rotary meter, turbine meter, or other pulse-generating
devices. The static pressure inputs come from the pressure transducers,
and the temperature input is read from an RTD probe. The AGA7
calculations conform to methods described in American Gas Association
Report No. 7,
Measurement of Natural Gas by Turbine Meters (2006)
,
and use the AGA8 method for determining the compressibility factor.
The ISO5167-2003 firmware calculates gas flow. Measurement of fluid
flow occurs through pressure differential devices inserted in circular
cross-section pipes running full.
The AGA8 method calculates the compressibility factor based on the
physical chemistry of the component gasses at specified temperatures and
pressures.
1.8
Security Gateway
For enhanced data security when using an IP/Ethernet connection,
Remote Automation Solutions recommends adding an industrial router
with VPN and firewall security. Recommended solutions include the
MOXA EDR-810, the Hirschman Eagle One, or the Phoenix mGuard
rs4000 (or equivalents). An example of how to install one of these
devices to the RTU/flow computer can be found in the Remote
Automation Solutions
MOXA
®
Industrial Secure Router Installation
Guide
(part D301766X012). For further information, contact your Local
Business Partner or the individual vendor’s website.
Содержание FloBoss 107
Страница 58: ...FloBoss 107 Instruction Manual 3 8 Power Connections Revised June 2017 This page is intentionally left blank ...
Страница 104: ...FloBoss 107 Instruction Manual 5 18 Communications Revised June 2017 This page is intentionally left blank ...
Страница 151: ...FloBoss 107 Instruction Manual Revised June 2017 Index I 7 This page is intentionally left blank ...