Log Period; Volume Calculation Period; Calculated Method; Table 3-1 Configurable Calculation Factors - ABB XSeries G4 6200 User Manual

3.6.2 Log period

The Log Period is the specified length of time between writing the calculated
accumulated volume to record. The user may record volumes as often as every
minute and as seldom as every hour. The default is 60 minutes. The G4 EX can
normally store 960 log periods (40 days x 24 logs). A five minute log period will
consume available memory in eight days.
Description
Log Period

3.6.3 Volume calculation period

Volume Calculation Period is the specified length of time between volume
calculations. The Volume Calculation Period must be equally divisible into the Log
Period. The default is 1 second.
Description
Volume Calculation Period

3.6.4 Calculated method

When the G4 EX is initially powered up, the calculation method must be set. The
user has the option of setting the calculation method to AGA-3 1985, AGA-3 1992,
AGA-7 or ISO-5167. Once the calculation type has been determined, the user
may toggle specific factors on or off depending upon their availability (see Table
3–1).
Table 3–1 Configurable calculation factors
Calculation Parameter
Fpb (Pressure Base Factor)
Ftb (Temperature Base Factor)
Fg (Specific Gravity Factor)
Fb (Orifice Factor)
Ftf (Flowing Temperature Factor)
Y (Expansion Factor)
Fr (Reynolds Number)
Fa (Orifice Thermal Expansion
Factor)
2104349 rev. AD
Midnight is 00 o'clock. If any value entered is greater than
23, the user will receive an error message, and the G4 EX
forces the value to 00 (midnight).
Options
1,2,5,10,20,30,60 (Minutes)
Options
1 sec, 2 sec, 5 sec, 10 sec, 20 sec, 30 sec
1 min, 2 min, 5 min, 10 min, 20 min, 30 min and 60 min.
It is recommended to leave at the default of 1 second.
Calculation types, and many of the factors involved with setting up
the calculations, are usually dictated by the user's sales contract
or company policy.
AGA-3 AGA-3
AGA-7
1985 1992
Yes N/A N/A
Yes N/A N/A
Yes N/A N/A
Yes N/A N/A
Yes N/A N/A
Yes Yes N/A
Yes N/A N/A
Yes N/A N/A
ISO-5167
N/A
N/A
N/A
N/A
N/A
Yes
N/A
N/A
Page 3–31