DigitalFlow™ DF868 Multipurpose Ultrasonic Liquid Flowmeter Programming Manual (2-Channel) 29
Chapter 1. Programming Site Data
1.7 Entering Global Data
The GLOBL menu is used to enter information that is not specific to one of the individual channels. Information
programmed via this menu is used to compute parameters such as the sum, difference or average of the channel 1
and channel 2 signals. In addition, several general system parameters may be entered in the GLOBL menu.
IMPORTANT: When calculating the SUM, DIF or AVE readouts, data from the GLOBL-SYSTM submenu is used. Any
conflicting data entered in the CH1-SYSTM or CH2-SYSTM submenus is overridden.
The following submenus are included in the GLOBL menu:
• CLOCK - used to enter the current date and time
• SYSTM - used to specify the units of measure used in calculations
• I/O - used to set up error handling and to configure analog inputs and outputs
• COMM - used to set up the serial communications port
• KV/SS - used to enter a kinematic viscosity/signal strength table
• TmpKv - used to enter a temperature vs. viscosity table
• SECUR
- used to specify a programming access password.
After selecting [F3]=GLOBL at the initial programming screen, the following screen appears:
Based on the selection made above, proceed to the appropriate section of this chapter for instructions. Refer to
Figure 13 on page 100 and Figure 14 on page 101, and remember to record all programming data in Appendix B, Data
Records.
PROGRAM Start ‰
Press the [ and [ keys and a function key [F1]-[F4] to select the desired
submenu. From this screen, press [EXIT] to return to the initial User Program
screen shown on page 1-8.
Global PROGRAM
previous selection appear here
CLOCK SYSTM I/O COMM
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