Panametrics GF868 Owner's manual

Model GF868
Programming Manual
(Two-Channel)

12/1/99
Process Control Instrument Division
Model GF868 Ultrasonic Flowmeter
for Flare Gas (2-Channel)
Programming Manual 910-194P2A

iii
12/1/99
Table of Contents
Chapter 1: Programming Site Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Using the Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Obtaining On-line Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Using the Console Control Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Audio Alarm Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Stopwatch Totalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Display Brightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
Display Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
The User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
Entering Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
The CH1/CH2 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
The ACTIV Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
The SYSTM Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-10
The PIPE Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
The I/O Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
The SETUP Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-23
The GLOBL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32
The CLOCK Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-33
The SYSTM Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-35
The I/O Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-39
The COMM Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-57
The SECUR Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-59
The SAVE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-62
The RECLL Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-63
Chapter 2: Displaying Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
The BIG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
The DUAL Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
The GRAPH Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Setting Up the GRAPH Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
Using the GRAPH Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
The LOG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Numeric Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
Graphical Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
The SIGNL Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-14
The BACKL Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18
The SLEEP Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19

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Table of Contents (cont.)
Chapter 3: Logging Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
The STD Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
STARTTIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
START DATE Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
END TIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
END DATE Prompt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
DURATION Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
LOG TIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
TIME INCREMENT Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
The MEM Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
The STOP Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
The ERROR Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
STARTTIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
START DATE Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Chapter 4: Printing Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
The DATA Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Numeric Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Graphical Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
The LOG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Numeric Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Graphical Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
The PROG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
The STOP Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
The PRNTR Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
The SGNLS Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15
Chapter 5: Clearing Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
The TOTAL Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
The SITE Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
The LOG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

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Table of Contents (cont.)
Chapter 6: Serial Communications
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Wiring the RS232 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
Checking the GF868 Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Setting Up the Terminal Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Windows 3.X Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Windows 9X/NT Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-4
The Optional RS485 Serial Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Interface Converter Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5
Point-To-Point Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-6
Multi-Point Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7
Appendix A: Menu Maps
The ACTIV, SYSTM and PIPE Sub-Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
The CH1/CH2-I/O and SETUP Sub-Menu Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
The GLOBL, SAVE and RECLL Menu Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
The GLOBL-I/O Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
The DISP Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
The PRNT Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
The LOG and CLR Menu Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
Appendix B: Data Records
Option Cards Installed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Initial Setup Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Chapter 1

Programming Site Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Using the Keypad. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Obtaining On-line Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Using the Console Control Keys . . . . . . . . . . . . . . . . . . . . . . . . . .1-7
The User Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
The CH1/CH2 Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
The GLOBL Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32
The SAVE Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-62
The RECLL Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-63

Programming Site Data 1-1
12/1/99
Introduction The 2-Channel Model GF868 flowmeter cannot provide accurate
flow rate measurements for either channel until the instrument has
been properly installed, the channel has been activated, and the basic
system and pipe parameters have been programmed into the meter.
See the Startup Guide for detailed instructions on performing these
tasks. After completing the installation, proceed with this chapter to
program the Model GF868’s advanced features.
Four sub-menus within the User Program provide access to the
various programmable features of the Model GF868. Step-by-step
programming instructions for each sub-menu are presented in this
chapter. Refer to the appropriate section for a discussion of the
following User Program sub-menus:
•CH1/CH2 - use this sub-menu to activate a channel and to enter the
basic setup parameters for that channel.
•GLOBL - use this sub-menu to enter global meter parameters (i.e.
clock, system, input/output, communications and security), which
apply to both channels.
•SAVE - use this sub-menu to store both channel and global data in
the meter’s memory, as a site file.
•RECLL - use this sub-menu to recall and activate a stored site file.
Note: It is not required that both channels of a 2-Channel Model
GF868 be installed. The second channel connector may
simply be left vacant for future expansion.
As an aid in following the programming instructions, a complete
menu map of the User Program is included in Appendix A, Menu
Maps. In addition, the relevant branch of the full menu map is
reproduced in each section of this chapter.
Note: In the menu map drawings, plain text represents prompt area
messages and boxed text represents option bar choices. Fx
represents a function key to select an option bar choice.

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1-2 Programming Site Data
Using the Keypad The Model GF868 keypad contains 39 keys, which are labeled with
their primary (unshifted) functions. In addition, pressing the red
[SHIFT] key will access the secondary functions assigned to most of
the keys.
The complete keypad is illustrated in Figure 1-1 below and a detailed
description of both the unshifted and shifted functions for each of the
39 keys is listed in Table 1-1 on page 1-3.
Note: Only the [SHIFT] key and the eight [Fx] keys have no shifted
function.
Figure 1-1: The Model GF868 Keypad
Note: Although the keypad is essentially the same, the front panel
layout of meters supplied in one of the optional enclosures is
different. See Appendix C, Optional Enclosures, of the Startup
Guide for a picture of the applicable front panel.
PANAMETRICS

Programming Site Data 1-3
12/1/99
Table 1-1: Model GF868 Key Functions
Key Unshifted Function Shifted Function
Software Function Keys - press to
select the functions displayed directly
above them in the option bar. These
keys apply only to the left pane of the
display screen.
None
Software Function Keys - press to
select the functions displayed directly
above them in the option bar. These
keys apply only to the right pane of the
display screen.
None
Shift Key - use this red key to access
the shifted function of the other keys.
One press shifts the next keystroke
only, while two presses locks the key-
pad in shifted mode. A third press
releases the shift function.
None
Arrow Keys - in measurement mode,
use to scroll through function choices
on the option bar. In programming
mode, use to scroll through menu
choices. The [←] also acts as a back-
space key in programming mode.
Use to enter the letters A, B, C and D,
respectively.
Program Key - press to enter the User
Program. See the Programming Man-
ual for details.
Use to enter the letter Q.

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1-4 Programming Site Data
Display Key - use to display data in a
variety of numeric and graphic format-
ting options. See the Programming
Manual for details.
Use to enter the letter O.
Log Key - use to set up logs. See the
Programming Manual for details. Use to enter the letter X.
Print Key - use to print live measure-
ments, log files and signal arrays. See
the Programming Manual for details.
Use to enter the letter R.
Clear Key - use to reset totals and to
delete site and log files from the Model
GF868 memory. See the Program-
ming Manual for details.
Use to enter the letter H.
Calibration Key - use to calibrate the
analog inputs and outputs and to test
the alarm relays and the totalizer/fre-
quency outputs. See Chapter 4, Cali-
bration, for details.
Use to enter the letter P.
Exit Key - use to move up one level in
the user program or to exit the user
program. See the Programming Man-
ual for details.
Use to enter the letter J.
Enter Key - use to confirm the most
recent input information. Use to enter the letter K.
Help Key - use to access the Model
GF868’s context-sensitive on-line help
system. See the next section for details.
Use to enter the letter I.
Screen Key - press the left side to
select the left display pane or press the
right side to select the right display
pane.
Press the left side to enter the letter V
or press the right side to enter the letter
W.
Decimal Point Key - press to enter a
decimal point during numeric entry. Use to enter the letter Z.
Minus Key - use to enter a minus sign
or a dash. Use to enter a space character.
Zero Key - use to enter the number 0. Use to enter the letter Y.
One Key - use to enter the number 1. Use to enter the letter S.
Table 1-1: Model GF868 Key Functions (Continued)
Key Unshifted Function Shifted Function

Programming Site Data 1-5
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Two Key - use to enter the number 2. Use to enter the letter T.
Three Key - use to enter the number 3. Use to enter the letter U.
Four Key - use to enter the number 4. Use to enter the letter L.
Five Key - use to enter the number 5. Use to enter the letter M.
Six Key - use to enter the number 6. Use to enter the letter N.
Seven Key - use to enter the number 7. Use to enter the letter E.
Eight Key - use to enter the number 8. Use to enter the letter F.
Nine Key - use to enter the number 9. Use to enter the letter G.
Audio Level Key - press to increase
the audio alarm volume. Press to decrease the audio alarm vol- ume.
Stopwatch Timer Key - press to turn
the stopwatch timer on. Press to turn the stopwatch timer off.
Backlight Key - press to turn the dis-
play backlight on or to increase its
brightness.
Press to turn the display backlight off
or to decrease its brightness.
Contrast Key - press to increase the
contrast of the display screen. Press to decrease the contrast of the display screen.
Table 1-1: Model GF868 Key Functions (Continued)
Key Unshifted Function Shifted Function

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1-6 Programming Site Data
Obtaining On-line Help A context-sensitive, on-line help system is programmed into every
Model GF868 flowmeter. On-line help, which displays additional
information related to the current task, may be accessed at any time
by pressing the [HELP] key on the keypad. The help information will
be shown on the currently selected pane of the display screen, as
shown in Figure 1-2 below.
Figure 1-2: Typical On-Line Help Screen
After entering the on-line help system, the following functions are
available on the option bar of the selected display pane:
•MORE: Press [F1] (or [F5]) to access this function, and the next
screen of text is displayed in the prompt area.
•EXIT: Press [F2] (or [F6]) to access this function, and the Model
GF868 returns to measurement mode.
•ERROR: Press [F3] (or [F7]) to access this function, and the
various Model GF868 error codes are displayed. Use the [F1]-[F4]
(or [F5]-[F8]) function keys, in conjunction with the [←] and [→]
keys, to obtain additional information on the desired error code or
to exit the help system.
Note: See the Service Manual for a complete listing of all error
codes and messages
•FLOW: Press [F4] (or [F8]) to access this function, and the various
flow measurement parameters are displayed. Use the [F1]-[F4] (or
[F5]-[F8]) function keys, in conjunction with the [←] and [→]
keys, to obtain additional information on the desired measurement
parameter or to exit the help system.
MORE FLOW EXIT ERROR
ON-LINE HELP
MORE EXIT ERROR FLOW

Programming Site Data 1-7
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Using the Console
Control Keys The Model GF868 has four console control keys, which are located
on the left side of the keypad. Use these keys, which are described
and pictured in Table 1-1 on page 1-5, in accordance with the
following instructions:
Audio Alarm Volume Use the top console control key to adjust the audio alarm volume.
Discrete presses will incrementally increase the volume of the audio
alarm. Hold the key down for continuous increase. Use the key in
shifted mode to decrease the volume of the audio alarm.
Stopwatch Totalizer Use the second console control key for the stopwatch totalizer.
Press the key once to start the stopwatch totalizer. Press the key once,
in shifted mode, to stop the stopwatch totalizer.
Note: Instructions on properly setting up the stopwatch totalizer are
given later in this chapter. Also, the Service Manual provides
information on the error response of the stopwatch totalizer.
Display Brightness Use the third console control key to adjust the display backlight.
Discrete presses of this key will increase the backlight brightness
through settings of Off, Mid and Full. Discrete presses of this key in
shifted mode, will decrease the backlight brightness through settings
of Full, Mid and Off.
Note: The display backlight has an automatic time-off feature. See
the Programming Manual for setup instructions.
Display Contrast Use the bottom console key to adjust the display contrast.
Discrete presses will incrementally increase the display contrast.
Hold the key down for continuous increase. Use the same key, in
shifted mode, to decrease display contrast.

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1-8 Programming Site Data
The User Program Use the keypad, as described in Chapter 3, Operation, of the Startup
Guide to navigate through the User Program. The menu map may be
followed in sequence, or the [↑] and [↓] keys may be used to scroll
through the prompt screens. The [←] key may be used to delete the
last alphanumeric character that was entered from the keypad.
The following discussion assumes that the left screen pane is active.
If the right screen pane is active, only the function key designations
change. That is, replace [F1]-[F4] with [F5]-[F8]. Also, Channel 1 is
used in all examples, but the instructions apply equally to Channel 2.
Note: Be sure to record all the programming data entered in this
chapter in Appendix B, Data Records.
Programming of the ACTIV, SYSTM (CH1 and GLOBL) and PIPE
sub-menus is necessary for operation of the Model GF868. Failure to
accurately enter all of the required information will result in
unreliable flow rate data. Therefore, be sure to complete at least the
sections of this chapter pertaining to those three sub-menus.
Note: Because it is so essential, instructions for programming the
ACTIV, SYSTM and PIPE sub-menus are also included in the
Startup Guide. If that programming has already been
completed, skip the corresponding sections of this chapter.
Except for the three sub-menus noted above, it is not necessary to
program the Model GF868 flowmeter in any particular order.
Therefore, the sections of this chapter need not be completed in
sequence. Proceed immediately to any section of interest.
Entering Programming
Mode To access the User Program, press the [PROG] key on the keypad.
The standard measurement mode screen will be replaced by the
following initial programming mode screen:
Note: If the security feature is active, enter the password and press
the [ENT] key to enter the User Program. See the SECUR sub-
menu section of this chapter for more information on the
security feature.
PROGRAM Start ÉPress the [←] and [→] keys and
one of the function keys [F1]-[F4]
to select the desired sub-menu.
From this screen, press [EXIT] to
return to measurement mode.
PROGRAM
Channel 1
CH1 CH2 GLOBL SAVE

Programming Site Data 1-9
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The CH1/CH2 Menu If [F1]=CH1 (or [F2]=CH2) was selected at the initial User Program
prompt shown on page 1-8, the following screen appears:
Based on the selection made above, proceed to the appropriate section
of this chapter for instructions.
The ACTIV Sub-Menu The ACTIV sub-menu activates a channel and selects the desired
measurement method. While following the programming instructions,
refer to the menu map in Figure A-1 on page A-1 in Appendix A,
Menu Maps. Enter the ACTIV sub-menu by pressing [F1] at the
Channel PROGRAM prompt.
As indicated in the above prompt, the Model GF868 flowmeter can
take measurements in two different ways:
•Skan is a low resolution 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 a more precise technique best used for low velocity
measurements.
Chan 1 PROGR Start ÉPress the [←] and [→] keys and
a function key [F1]-[F4] to select
the desired sub-menu. From this
screen, press [EXIT] to return to
the initial User Program screen
shown on page 1-8.
Channel PROGRAM
status
ACTIV SYSTM PIPE I/O
Chan 1 XDCR MODE Press [F1] to deactivate the
channel, or press [F2] to activate
the channel in BURST mode.
Channel PROGRAM
status
Channel status
current status appears here
OFF BURST
Chan 1 XDCR MODE At the prompt screen shown,
press [F1] to select Skan mode or
or [F2] to select Skan/Measure
mode.The meter will exit the
ACTIV sub-menu and return to
the channel menu screen.
Channel status
current status appears here
Skan/Measure Mode
current mode appears here
Skan S/M

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1-10 Programming Site Data
The ACTIV Sub-Menu
(cont.) 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 and Measure parameters, see the SIGNL
sub-menu section on page 1-23.
To leave the User Program and return to measurement mode, press
[EXIT] twice on the keypad. If changes have been made in any of the
sub-menus, the following screen appears:
Note: See the SAVE sub-menu section of this chapter for more
information on this function.
The SYSTM Sub-Menu While following the programming instructions, refer to the menu map
in Figure A-1 on page A-1 in Appendix A, Menu Maps. To enter this
sub-menu, press [F2] at the Channel PROGRAM prompt.
IMPORTANT: Do not confuse this SYSTM sub-menu, which is used
to enter channel-specific information, with the
SYSTM sub-menu of the GLOBL menu, which is used
to enter information applicable to both channels.
PROGRAM Start At the User Program screen
shown, press [F1] to return to
measurement mode without
saving the data or press [F2] to
enter the SAVE sub-menu.
Do you want to SAVE
previous selection appears here
No Yes
Chan 1 SYSTM É Enter a channel label of up to 9
characters and press the [ENT]
key. (When in measurement
mode, the channel label will
appear on the locator bar.)
Channel PROGRAM
system
CHANNEL LABEL
current label appears here
Chan 1 SYSTM É Enter a channel message of up to
21 characters. Use this screen to
enter a brief description of the
channel. When done, press the
[ENT] key.
CHANNEL LABEL
current label appears here
CHANNEL MESSAGE
current message appears here

Programming Site Data 1-11
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The SYSTM Sub-Menu
(cont.)
Note: The option bar above shows English units. If Metric units are
specified in the GLOBL menu, these will appear instead.
The abbreviations and definitions of all the available volumetric and
totalizer units are shown in Table 1-2 below. The choices shown on
the option bar are determined by the selections made at the SYSTEM
UNITS prompt screen.
Chan 1 SYSTM ÉPress [F1]-[F4] to select the
desired volumetric units for the
flow rate display, or press [→] to
access the additional choices of
[F1] = KSCF and [F2] = MMSCF.
CHANNEL MESSAGE
current message appears here
VOLUMETRIC UNITS
current setting appears here
ACF KACF MMACF SCF
Table 1-2: Available Volumetric/Totalizer Units
English Metric
Actual Units
ACF = Actual Cubic Feet ACM = Actual Cubic Meters
KACF = Thousands of ACF KACM = Thousands of ACM
MMACF = Millions of ACF MMACM = Millions of ACM
Standard Units
SCF = Standard Cubic Feet SCM = Standard Cubic Meters
KSCF = Thousands of SCF KSCM = Thousands of SCM
MMSCF = Millions of SCF MMSCM = Millions of SCM
Chan 1 SYSTM Press [F1]-[F4] to select the
desired time units for the
volumetric flow rate display.
VOLUMETRIC UNITS
current setting appears here
VOLUMETRIC TIME
current setting appears here
/SEC /MIN /HR /DAY

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1-12 Programming Site Data
The SYSTM Sub-Menu
(cont.)
Note: The option bar above shows English units. If Metric units are
specified in the GLOBL menu, these will appear instead.
The abbreviations and definitions of all the available volumetric and
totalizer units are shown in Table 1-2 on page 1-11. The choices
shown on the option bar above are determined by the selection made
at the SYSTEM UNITS prompt screen.
Chan 1 SYSTM Press [F1]-[F4] to select the
desired number of digits to the
right of the decimal point in the
volumetric flow rate display.
VOLUMETRIC TIME
current setting appears here
VOL DECIMAL DIGITS
current setting appears here
0123
Chan 1 SYSTM ÉPress [F1]-[F4] to select the
desired units for the totalized
flow display, or press [→] to
access the additional choices of
[F1] = KSCF and [F2] = MMSCF.
VOL DECIMAL DIGITS
current setting appears here
TOTALIZER UNITS
current setting appears here
ACF KACF MMACF SCF
Chan 1 SYSTM Press [F1]-[F4] to select the
desired number of digits to the
right of the decimal point in the
totalized flow display.
TOTALIZER UNITS
current setting appears here
TOTAL DECIMAL DIGITS
current setting appears here
0123

Programming Site Data 1-13
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The SYSTM Sub-Menu
(cont.)
Note: The option bar above shows English units. If Metric units are
specified in the GLOBL menu, these will appear instead.
The abbreviations and definitions of all the available mass flow units
are shown in Table 1-3 below. The choices shown on the option bar
are determined by the selection made at the SYSTEM UNITS prompt
screen.
Chan 1 SYSTM Press [F1]-[F4] to select the
desired mass flow units for the
flow rate display.
TOTAL DECIMAL DIGITS
current value appears here
MASS FLOW
current setting appears here
LB KLB MMLB TONS
Table 1-3: Available Mass Flow Units
English Metric
LB = Pounds KG = Kilograms
KLB = Thousands of LB TONNE = Metric Tons (1000 KG)
MMLB = Millions of LB
TONS = Tons (2000 LB)
Chan 1 SYSTM Press [F1]-[F4] to select the
desired time units for the mass
flow rate display.
MASS FLOW
current setting appears here
MASS FLOW TIME
current setting appears here
/SEC /MIN /HR /DAY
Chan 1 SYSTM Press [F1]-[F4] to select the
desired number of digits to the
right of the decimal point in the
mass flow rate display.
MASS FLOW TIME
current setting appears here
MDOT DECIMAL DIGITS
current setting appears here
0 1 2 3