DigitalFlow™ GF868 Startup Guide (1 and 2-Channel) 37
Chapter 3. Operation
3.4 Taking Measurements
The Model GF868 is capable of displaying several different variables in a variety of formats. However, this manual
will only discuss 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 GF868, 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 GF868 or
immediately after the internal checks for a 1-channel Model GF868.
Note: Ch1 (or Ch2), which is shown in parentheses above, appears only with a 2-Channel Model GF868.
Ch1 Channel Label gSITE
To select a different channel display option, press [F1]-[F4] (or [and [F1]). See
Table 7 for a complete description of the available options.
Ch1 Velocity Ft/s
6.95
(error codes appear here)
CH1 CH2 SUM DIF
Table 7: 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.
See Table 8 on page 38 for a complete description of the available options.
(Ch1) Velocity Ft/s
6.95
(error codes appear here)
VEL VOLUM +TOTL -TOTL
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