Panametrics GF868 Owner's manual

Model GF868
Programming Manual
(One-Channel)

12/1/99
Process Control Instrument Division
Model GF868 Ultrasonic Flowmeter
for Flare Gas (1-channel)
Programming Manual 910-194P1A

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
Entering Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
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 ERROR Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
The OPTN Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
The ZERO Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-35
The T,P Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-35
The SETUP Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-39
The SIGNL Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-39
The AVRG Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-46
The INIT Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-46
The CLOCK Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-47
The COMM Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-49
The SAVE Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-51
The RECLL Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-52
The SECUR Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-53
Chapter 2: Displaying Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
The BIG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2
The DUAL Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
The GRAPH Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Setting Up the GRAPH Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Using the GRAPH Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
The LOG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
Entering the LOG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
Numeric Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
Graphical Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
The SIGNL Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12
The BACKL Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16
The SLEEP Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17

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Table of Contents (cont.)
Chapter 3: Logging Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
The STD Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
STARTTIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
START DATE Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
END TIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
END DATE Prompt. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
DURATION Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
LOG TIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
TIME INCREMENT Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
The MEM Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
The STOP Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
The ERROR Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
STARTTIME Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
START DATE Prompt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16
Chapter 4: Printing Data
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
The DATA Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Numeric Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Graphical Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
The LOG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Numeric Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Graphical Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
The PROG Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
The STOP Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
The PRNTR Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
The SGNLS Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
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
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 I/O Sub-Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
The PROG Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
The DISP Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
The PRINT Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5
The LOG and CLR Menu Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
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
Entering Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-39
The CLOCK Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-47
The SAVE Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-51
The RECLL Sub-Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-52
The SECUR Sub-Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-53

Programming Site Data 1-1
12/1/99
Introduction The Model GF868 flowmeter can not provide accurate flow rate
measurements until the instrument has been properly installed 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 and initial setup, use this
chapter to program the Model GF868’s advanced features.
Ten sub-menus within the User Program provide access to the
various programmable features of the Model GF868. Step-by-step
programming instructions are presented in this chapter. Refer to the
appropriate section for a discussion of the following User Program
sub-menus:
•ACTIV - select the desired measurement method
•SYSTM - enter the system data
•PIPE - enter the pipe parameters
•I/O - set up the inputs and outputs
•SETUP - set the signal limits and response times
•CLOCK - set the time and date
•COMM - set the serial port parameters
•SAVE - save site files
•RECLL - recall stored site files
•SECUR - enter a passcode
As an aid in following the programming instructions, a complete
menu map of the User Program is included in Appendix A, Menu
Maps.
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
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
12/1/99
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.
ON-LINE HELP
MORE FLOW EXIT ERROR

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:
1. 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.
2. 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.
3. 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.
4. 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
Entering Programming
Mode Use the keypad, as described in the previous section, 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].
Note: Be sure to record all the programming data entered in this
chapter in Appendix B, Data Records.
To access the User Program, press the [PROG] key on the keypad.
The standard measurement mode screen is 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.
Programming of the ACTIV, SYSTM 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, those sections of this chapter may be skipped.
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.
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
status
ACTIV SYSTM PIPE I/O

Programming Site Data 1-9
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The ACTIV Sub-Menu The ACTIV sub-menu permits selection of the desired measurement
method. While following the programming instructions, refer to
Figure A-1 on page A-1 of Appendix A, Menu Maps. Enter the
ACTIV sub-menu by pressing [F1] at the initial User Program screen:
Note: The current status of the meter is displayed in the bottom line
of the prompt area.
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.
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 of this chapter.
To leave the User Program and return to measurement mode, press
[EXIT] on the keypad. If changes have been made in any of the sub-
menus, the following screen will appear:
XDCR MODE At the User Program screen
shown, press [F1] to select
BURST mode.
PROGRAM
status
Site status
current status appears here
BURST
XDCR MODE At the prompt screen shown,
press [F1] to select Skan mode or
[F2] to select Skan/Measure
mode. The meter will exit the
ACTIV sub-menu and return to
the initial User Program screen.
Site status
Burst
Skan/Measure Mode
current status appears here
Skan S/M

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1-10 Programming Site Data
The ACTIV Sub-Menu
(cont.)
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 Figure A-1 on
page A-1 of Appendix A, Menu Maps. To enter this sub-menu, press
[F2] at the initial User Program screen.
Note: If you choose METRC, the meter will prompt you for desired
pressure units. Choose F1 for bar or F2 for kPa.
PROGRAM Start At the User Program screen
shown, press [F1] to return to
measurement mode without
saving the file or press [F2] to
enter the SAVE sub-menu.
Do you want to SAVE
current selection appears here
No Yes
SYSTM ÉEnter a site label of up to 9
characters and press the [ENT]
key. (When in measurement
mode, the site label will appear
on the locator bar.)
PROGRAM
system
SITE LABEL
site label appears here
SYSTM ÉEnter a site message of up to 21
characters. Use this screen to
enter a brief description of the
site. When the message has been
entered, press the [ENT] key.
SITE LABEL
site label appears here
SITE MESSAGE
message appears here
SYSTM Press [F1] to display parameters
and measurements in English
units or press [F2] to display
parameters and measurements in
Metric units.
SITE MESSAGE
site message appears here
SYSTEM UNITS
current units appear here
ENG METRC
SYSTM Press [F1] to measure totals
automatically with the
Stopwatch Timer or press [F2] to
measure totals manually with the
Stopwatch Timer.
SYSTEM UNITS
current units appear here
STOPWATCH TOTALIZER
current setting appears here
AUTO MNUAL

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The SYSTM Sub-Menu
(cont.) If AUTO is selected, the stopwatch totalizer is turned off and the
meter automatically begins totalizing upon leaving the User Program.
If MNUAL is selected, the flowmeter stops totalizing and activates the
stopwatch totalizer. The console key on the keypad may then be used
to start and stop the totalizer.
IMPORTANT: After setting up the Stopwatch Totalizer, press [CLR]
to clear the Stopwatch Totalizer, or the new totals
will be added to any previously accumulated totals.
Note: The manner in which the Stopwatch Totalizer responds to an
error condition may be set in the I/O sub-menu.
Note: The above option bar shows English units, as an example.
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 previous
SYSTEM UNITS prompt screen.
SYSTM ÉPress [F1]-[F4] to select the
desired volumetric units for the
flow rate display. Press [→] to
access the additional choices of
[F1] = KSCF and [F2] = MMSCF.
STOPWATCH TOTALIZER
previous selection 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

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1-12 Programming Site Data
The SYSTM Sub-Menu
(cont.)
Note: The above prompt shows the ENG versions of the available
volumetric units, as an example.
The abbreviations and definitions of all the available volumetric and
totalizer units are shown in Table 1-2 on page 1-13. The choices
shown on the option bar in the prompt screen above are determined
by the selections made at the previous SYSTEM UNITS prompt
screen.
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
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
SYSTM ÉPress [F1]-[F4] to select the
desired units for the totalized
flow display. 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
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, as an example. If
Metric units were specified, these 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 selections made at the SYSTEM UNITS
prompt.
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)
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
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