September 2004
2-12 Programming Site Data
Number of Traverses and
Transducer Spacing
1. Press [W] and [X] to select the number of traverses and press
[ENTER].
2. Enter the value for the transducer spacing by using the arrow keys.
Press [
W] and [X] to move the cursor to desired location and
press
[S] and [T] to increase or decrease the number and press
[ENTER].
Procedure Options After completing the above steps, the user program returns to the
Channel PROGRAM window. Do one of the following:
• To continue entering “quick startup” data, press [ESC] once and
proceed to Step 3 in Entering Global System Data on
page 2-22.
• To continue regular programming, refer to Appendix A, Menu
Maps, to navigate to the desired menu.
• To leave the user program, press [ESC] three times.
Entering the Zero Cutoff
Value - CHx-I/O
Near a zero flow rate, the Model AT868 readings may fluctuate due to
small offsets caused by thermal drift or similar factors. To force a
zero display reading when there is minimal flow, enter a zero cutoff
value as described below.
While programming these parameters, refer to Figure A-1 in
Appendix A, Menu Maps. Remember to record all programmed data
in Appendix C, Data Records.
1. Press [ESC], [ENTER], [ESC]. The meter enters the user program.
2. Press [
X] until PROG appears and press [ENTER].
3. Press [
X] until the desired channel appears. Press [ENTER] at CH1
or CH2.
4. Press [
X] until I/O appears and press [ENTER].
5. Enter a value from 0 to 1 ft/sec (0 to 0.30 m/sec) for the zero
cutoff by using the arrow keys. Press [
W] and [X] to move the
cursor to desired location and press
[S] and [T] to increase or
decrease the number and press [ENTER]. The recommended setting
is 0.1 ft/sec (0.03 m/sec).
Procedure Options After completing the above steps, the user program returns to the
Channel PROGRAM window. Do one of the following:
• To continue regular programming, refer to Appendix A, Menu
Maps, to navigate to the desired menu.
• To leave the user program, press [ESC] three times.
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