Nautilus Pipeline Company, LLC
Original Volume No. 1
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Effective Date: 04/05/2010, Docket: RP10-475-000, Status: Effective
First Revised Sheet No. 103 First Revised Sheet No. 103
Superseding: Original Sheet No. 103
GENERAL TERMS AND CONDITIONS
5. MEASUREMENT & MEASUREMENT EQUIPMENT con't
(b) Computation. The RTU shall, as a minimum, perform flow
calculations per AGA-3, AGA-7, and AGA-8 requirements. As
the flow calculation methods are revised from time to time,
new releases shall be implemented within twelve (12) Months
from the release date. At Transporter's option, Transporter
may use other methods of computation which are generally
accepted in the industry. All measured variables for
differential pressure, static pressure and temperature shall
be sampled at least once per second. All volume
calculations shall be made at least once per second.
Calculation of supercompressibility shall occur at least
once every thirty (30) seconds.
(c) Data Security. The RTU shall have password protection so
that utilization of a correct password will be required
before data can be accessed or any parameters can be
changed. A computer log shall be made of all changes to the
(d) Safety Standards. The EGM system shall meet the standards
for Class 1, Division 2, Group D installations.
(e) Power. The RTU and the related hardware shall run on re-
chargeable batteries which can be charged by either 120VAC,
24VDC or solar panels. The battery capacity shall be at
least twenty-four (24) hours when fully charged.
(f) Local Display. To the extent practicable, Transporter shall
monitor volume information being recorded by the measurement
system on an ongoing basis with either RTU display or
transmitters with local display.