April 2008
1-24
Programming Site Data
Setting Up Temperature
and Pressure Inputs
Note:
This option only appears if you have selected “Standard” as
the equation type in the
SYSTM
submenu, as shown on page 1-
10.
The Model GC868 can use either fixed temperature and pressure
quality values or live measurement inputs to calculate standard
volumetric or mass flow. Complete the following steps to configure
these inputs:
1.
At the main I/O menu prompt, press
[F4] =T,P.
Entering the Temperature
Input
2.
At the
Temperature Input
prompt, press
[F1]
to enter a constant
temperature value or press
[Fx]
to select the option card in
Slot x
that will supply the live temperature input.
Note:
Each slot that contains an option card with an analog input
assigned to
TEMP
or an
RTD
input will appear on the option
bar. If the process temperature is stable, a fixed value may be
used, but most applications require a live temperature input.
3.
Do one of the following:
•
If you selected
FIXED,
enter the known fixed process
temperature. Press
[ENT]
. (The meter will only accept values
from –148 ° to 662 °F.)
•
If you selected
SLOT X,
a.
Press
[F1]
to select input A or press
[F2]
to select input B.The
inputs were labeled during setup.
Note:
The set up of input A is used as an example. Identical
procedures would be used to set up input B.
b.
Enter the
Base Temperature
(from –148 ° to 662 °F), and press
[ENT]
. The ratio of this value to the actual temperature is used to
calculate the standard volumetric flow.
Entering the Pressure
Input
4.
At the
Pressure Input
prompt, press
[F1]
to enter a constant
pressure value or press
[Fx]
to select the option card in Slot X that
will supply the live pressure input.
Note:
Each slot that contains an option card with an analog input
assigned to
PRESR
will appear on the option bar. If the process
pressure is stable, a fixed value may be used, but most
applications require a live pressure input.
5.
Do one of the following:
•
If you selected
FIXED
, enter the known fixed process pressure.
Press
[ENT]
. (The meter will only accept values from 0–5000
psia .)
Содержание DigitalFlow GC868
Страница 8: ...Chapter 1 ...
Страница 61: ...Chapter 2 ...
Страница 78: ...Chapter 3 ...
Страница 91: ...Chapter 4 ...
Страница 105: ...Chapter 5 ...
Страница 106: ...Clearing Data Introduction 5 1 Reset Totals 5 2 Deleting Site Files 5 3 Deleting Log Files 5 4 ...
Страница 111: ...Chapter 6 ...
Страница 123: ...Appendix A ...
Страница 132: ...Appendix B ...
Страница 133: ...Data Records Option Cards Installed B 1 Initial Setup Data B 2 ...
Страница 136: ...Appendix C ...
Страница 156: ...Appendix D ...