Chapter 3. Operation
3-3
DigitalFlow™ GC868 Startup Guide (1 and 2-Channel)
The lower portion of the screen pane is called the
option bar
. The option bar displays
the functions assigned to the four keys immediately below the display screen
(
[F1]-[F4]
for the left pane and
[F5]-[F8]
for the right pane). Press a function key to
select the function listed in the option bar immediately above it. If more than four
functions are available, a pointer (‰) appears on the far right of the locator bar.
Press the
[
←
]
or
[
→
]
keys to display the additional functions on the option bar.
For information about other symbols and text that may appear on the display
screen, refer to the
Service Manual
.
3.4 Taking
Measurements
The Model GC868 is capable of displaying several different variables in a variety of
formats. However, this manual only discusses the basic measurement displays in
the default screen format. Refer to the
Programming Manual
for instructions on
setting up alternate screen displays and see the
Service Manual
for a discussion of
the diagnostic parameters listed under the DIAG option.
Note:
This section assumes that the left pane of the display screen is currently
active. However, the same instructions apply equally to the right screen pane,
when it is active. Just change the function keys from
[F1]-[F4]
to
[F5]-[F8]
.
For a 2-channel Model GC868, the following initial screen appears immediately upon
completion of the internal checks. As an example, the display shows the measured
velocity in ft/sec for Channel 1.
The following screen appears after selection of the channel mode display option for
a 2-channel Model GC868 or immediately after the internal checks for a 1-channel
Model GC868.
Note:
Ch1 (or Ch2), which is shown in parentheses at the previous prompt, appears
only with a 2-Channel Model GC868.
Ch1 Channel Label gSITE
To select a different channel
display option, press
[F1]-[F4]
(or
[
→
]
and
[F1]
). See Table 3-1
below for a complete
description of the available
options.
Ch1 Velocity Ft/s
6.95
(error codes appear here)
CH1
CH2
SUM
DIF
Table 3-1: Channel Display Options
Option Bar Choice
Description
[F1] = CH1
Channel 1
[F2] = CH2
Channel 2
[F3] = SUM
(Channel 1) + (Channel 2)
[F4] = DIF
(Channel 1) - (Channel 2)
[
→
]
+ [F1] = AVE
[(Channel 1) + (Channel 2)]/2
(Ch1) label gSITE
Use the
[F1]-[F4],
[
←
]
and
[
→
]
keys to select the desired
display parameter option. Refer
to Table 3-2 on page 3-4 for a
complete description of the
available options.
(Ch1) Velocity Ft/s
6.95
(error codes appear here)
VEL
VOLUM +TOTL -TOTL
