GE DigitalFlow XGS868i, Руководство по программированию, Страница: 34 / 176

Chapter 1. Programming Site Data
24 DigitalFlow™ XGS868i Programming Manual
1.9.2a Selecting Error Handling (cont.)
Note:
The error responses listed in Table 7 apply only to the
Channelx
measurement mode and to the
Sum
/
Difference
measurement modes, if either or both channels are in error. Error handling in the
Average
measurement mode
is set in Step 7 below.
6. Use the arrow keys to enter a specific current that will signify meter errors and press
[Enter]
. Then, do one of the
following:
•
For a 1-Channel meter, go to Procedure Options on the next page.
•
For a 2-Channel meter - proceed to Step 7 below.
7. Scroll to Yes or No to enable or disable 2-path error handling. Specific responses of the display and the totalizer are
listed in Table 8 below. The
2-path error handling
option is intended for applications where two sets of transducers
are installed in the same location in the same pipe to improve accuracy and the meter is operated in
AVE
mode. With
this function enabled, the Model XGS868i performs error handling only if both channels are in error. If this
function is disabled, error handling occurs when either channel goes into error.
Procedure Options
After completing the above steps, the XGS868i returns to the
Global I/O
window. Do one of the following:
•
To continue programming, refer to Appendix A, Menu Maps, to navigate to the desired menu.
•
To leave the Keypad Program , press
[Escape]
four times.
Table 7: Error Response Options
Option Output Response Totalizer Response
HOLD Holds the last “good” reading. Continues to totalize, based on last “good” flow reading.
LOW Forces outputs to the low set point. Stops totalizing.
HIGH Forces outputs to the high set point. Stops totalizing.
HHIGH Forces outputs

10% above the high set point. Stops totalizing.
OTHER Forces outputs to the entered mA level. Stops totalizing during critical errors.
Table 8: 2-Path Error Response Options
Option Display Response Totalizer Response
No
Displays the average of Channel 1 and Channel 2, regardless
of the error state of either channel. Outputs the average of Channel 1 and Channel 2
totals, regardless of error state of either channel.
Yes
1. If one channel is in error, the other channel’s value is
displayed as the average.
2. If both channels are in error, the last average reading is
held.
1. If one channel is in error, totalizing continues.
2. If both channels are in error, totalizing stops.