GE PanaFlow HT, Руководство пользователя

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Chapter 3. Initial Setup and Programming
48 PanaFlow HT User’s Manual
3.6.3 Meter Setup (cont.)
Note:
The
Meter Setup
category is accessed by either the SIL User, Service or Factory passwords.
3.6.3b Tau Value
The Tau value determines how quickly the meter responds to a change in flow
rate. A small Tau responds quickly to flow changes, but is very erratic. A high Tau
value dampens a response to changes for a smooth transition, but a slower one.
Under
Meter Setup
, use the [

] or [

] arrow key to select
Tau Value.
Press
[

]
and a screen similar to the following appears. The default Tau value is 0.001 sec or
1 msec.
To set the Tau value, press
[

]
and a screen similar to the following appears.
Use the[

] and [

] arrow keys to select each digit to be changed and the [

] or
[

] arrow keys to change the digit values, then press
[

]
. Press [

]
twice to return
to the
Meter Setup
screen.
3.6.3c Path Error Handling
2-path Error Handling behaves differently in the SIL product than it does in
non-SIL products. For a SIL product, 2-path Error Handling is only applicable to a
three-path system. This flowmeter version is not available for sale at the time of
this writing, but could become available in the future. If 2-path Error Handling is
enabled for a 2-path flowmeter, it will have no effect. Please refer to Appendix E
for details.
To turn the
Path Err Handing ON
or
OFF
, select the desired status and press
[

]
.
The screen returns to the previous display.
Note:
The default for Path Error Handling is ON. For a complete explanation of
path error handling, refer to Appendix E.
0.001