Entering Channel Data; Activating A Channel - GE DigitalFlow GF868 Programming Manual

1.6 Entering Channel Data

[F1]=CH1
After selecting
Chan 1 PROGR
Channel PROGRAM
status
ACTIV SYSTM PIPE
Based on the selection made above, proceed to the appropriate section of this chapter for instructions.

1.6.1 Activating a Channel

ACTIV
The submenu activates a channel and selects the desired measurement method.
Channel PROGRAM
1. To enter the
prompt.
ACTIV
2. Enter the submenu by pressing
(OFF) to deactivate the channel and return to the Channel PROGRAM prompt, or press
[F1]
3. Press
BURST
channel in mode.
[F1]
4. Press to select Skan mode or
return to the channel menu screen.
As indicated in the above prompt, the Model GF868 flowmeter can take measurements in two different ways:
•
Skan is the preferred technique for locating the acoustic signal and for high velocity measurements. It is more
robust in a noisy environment than the Measure technique.
•
Measure is the preferred technique to use for making low velocity measurements.
If Skan is selected at the next prompt, the instrument uses this technique exclusively. However, if S/M is selected, the
meter uses Skan to find the acoustic signal and then tries to use the Measure technique for a more precise measurement.
Note: To change the
Skan
DigitalFlow™ GF868 Programming Manual (2-Channel)
[F2]=CH2
(or ) at the initial programming screen, the following screen appears:

Press the [ and [ keys and a function key
Start
submenu. From this screen, press
shown on page 8.
I/O
[F1] or [F2]
menu, press
[F1]
at the
[F2]
to select Skan/Measure mode. The meter will exit the
Measure
and parameters, see the
[EXIT]
to return to the initial User Program screen
(depending on the desired channel) at the
Channel PROGRAM
prompt.
SIGNL
submenu section on page 16 of this chapter.
Chapter 1. Programming Site Data
[F1]-[F4]
to select the desired
User PROGRAM
[F2]
to activate the
ACTIV
submenu and
9