Hardware manual

Chapter 2 - TeleFlow Standard ACCOL Load
TeleFlow™ 2-1 Standard ACCOL Load
Overview
The TeleFlow Standard load is a an ACCOL load (ACL file) that is intended for use
in the EGM 3530 TeleFlow. This ACCOL load will compute gas flow rate, energy
rate and volume and energy totals for a single Orifice meter run. Flow calculations
and data storage will be done according to the requirements of Chapter 21 of the
American Petroleum Institute Manual of Petroleum Measurement Standards
(MPMS).
The TeleFlow Standard load supports the following functions:
Gas flow calculations per AGA3 (1985) or AGA3 (1992) for an Orifice meter.
Compressibility (Z
f
and Z
b
) per AGA8Detail or AGA8Gross when AGA3 (1992) is
used.
Supercompressibility (F
pv
) per NX-19 when AGA3 (1985) is used.
Energy (Btu/ft
3
) per AGA5 or from a fixed value.
Raise/Lower flow rate control using a PID3TERM module and two Discrete
outputs.
Pulse output on DO#1 with rate proportional to volume for odorant injection.
An Audit Trail holding 200 events and 200 alarms for a total of 400 entries.
A Daily Archive file containing 35 days of Daily historical information.
A Periodic Archive file containing 35 days of Hourly historical information.
A Trend Archive file containing 8 days of 15 minute trend information (can be
disabled).
Support of a local 2 line display (LCD) and single push-button.
Local and Network communications.
Backflow detection and alarming.
Nomination alarm settings.
Input sampling, averaging and Extension calculation every second.